Distance from M to N = 48.24 km
The car speed = 72 km/h
Time spent by the car = t
Time spent for the meeting = 2 hours
Total time spent since the man left town M till when he returns = 1:55pm - 10:00am = 3 hrs 55 minutes = 3.92 hours
Distance from M to N = Speed of the car * Time spent by car
Distance from M to N = 72 x t
Distance from M to N = 72 t
The man traveled by bus back to town M from town N
If the distance from N to M is 2 km longer than the distance from M to N, it means the car and the bus passed through different routes
Distance from N to M = (Distance from M to N) + 2..................(*)
Time taken by the bus = (Total time) - (Time taken by car) - (Time spent for the meeting)
Time taken by the bus = 3.92 - t - 2
Time taken by the bus = 1.92 - t
Distance from N to M = Speed of the bus x Time taken by the bus
Distance from N to M = 40 x (1.92 - t)...................(**)
Substitute (*) into (**)
(Distance from M to N) + 2 = 40 x (1.92 - t)
72t + 2 = 40(1.92 - t)
72t + 2 = 76.8 - 40t
72t + 40t = 76.8 - 2
112t = 74.8
t = 74.8/112
t = 0.67 hours
Distance from M to N = 72t
Distance from M to N = 72(0.67)
Distance from M to N = 48.24 km
Learn more here: https://brainly.com/question/19915685
solve pls brainliest
Answer:
a = \(\frac{9}{5}\) or \(1\frac{1}{5}\)
Step-by-step explanation:
15a = 27
a = \(\frac{27}{15}\)
a = \(\frac{9}{5}\)
a = \(1\frac{1}{5}\)
Answer:
a = 9/5 or a = 1 4/5
Step-by-step explanation:
15a = 27
Divide both sides of the equation by 15.
a = 27/15
Reduce the fraction by dividing the numerator and denominator by 3.
a = 9/5 = 1 4/5
a shop normally sells their goods at 90% above cost price. In a sale, the shop reduces the prices by 10%
What percentage profit does the shop make on clothes sold in the sale
The percentage of profit that a shop can make on clothes sold in the sale will be 71%.
What is the percentage?The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.
A store typically marks up its products by 90%. The store lowers the prices by 10% during a sale.
Then the percentage of profit that a shop can make on clothes sold in the sale will be
⇒ (1 + 0.90)(1 - 0.10)
⇒ 1.90 x 0.90
⇒ 1.71
⇒ (1 + 0.71)
The percentage of profit that a shop can make on clothes sold in the sale will be 71%.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ1
What is the simplified form of the expression 3 x 7^2 / 3 8/3 x 7-1/4
The simplified frame of the expression \(3 \times \frac{7 {}^{2} }{3} \times \frac{8}{3} \times 7- \frac{1}{4} \) is 6511.5.
To disentangle the given expression, we got to apply the arrange of operations (PEMDAS) and streamline the terms utilizing the example and division rules.
PEMDAS stands for Enclosures, Exponents, Multiplication and Division, and Expansion and Subtraction. We ought to perform the operations in this arrange to streamline the expression.
We rearrange the type: \(7^2 = 49\)
We rearrange the division 8/3 by partitioning the numerator by the denominator: \( \frac{8}{3} = 2 \frac{2}{3} \)
We disentangle the division 7-1/4 utilizing the run the show that a negative example is comparable to the corresponding of the base raised to the positive type: 7-1/4 = 1/74.
To revamp the expression with the rearranged values: \(3 \times 49 / (2 \frac{2}{3} \times 1/74)\)
To partition divisions, we increase by the corresponding of the second division: \(3 \times 49 \times 74 / (2 \frac{2}{3} )\)
We have to be rearrange the blended number \(2 \frac{2}{3} \) by increasing the total number by the denominator and including the numerator: \(2 \frac{2}{3} = \frac{8}{3} \)
We will disentangle the expression by canceling out common variables:
3 x 49 x 74 / (8/3) = 6511.5
Learn more about Exponents here:
https://brainly.com/question/15993626
#SPJ4
7. Suppose you are only given the maximum quantity of pizza you can buy with you weekly income of \( \$ 300 \). What is the price of Pizza if you can buy a maximum 20 pizza. 8. American produces cars
American cars are well-known for their quality, durability, and high performance, and are responsible for developing innovative technologies such as hybrid and electric engines. They also employ thousands of workers and contribute to the economy, making them an important part of the global automotive industry.
Given that a weekly income is $300 and the maximum number of pizzas you can buy is 20. We need to calculate the price of Pizza. To do this, divide the weekly income by the maximum number of pizza that you can buy.
Therefore, the price of one pizza is $15. 8. American produces cars that are well-known for their good quality, durability, and high performance. American automakers are responsible for producing some of the world's most well-known cars, including the Ford Mustang, Chevrolet Corvette, and Dodge Challenger.
In addition, American automakers have also been responsible for developing innovative technologies such as hybrid and electric engines.
These engines help in reducing pollution and are environmentally friendly. American car companies also employ thousands of workers and are significant contributors to the economy.
Therefore, American cars are an important part of the global automotive industry, and their impact on the market cannot be ignored.
To know more about economy Visit:
https://brainly.com/question/18461883
#SPJ11
Which graph shows the solution to the system of linear inequalities?
x + 3y > 6
y > 2x + 4
The solution to the inequality are the region in the shaded area
How to determine the solution to the inequalityFrom the question, we have the following parameters that can be used in our computation:
x + 3y > 6
y > 2x + 4
Represent properly
x + 3y > 6 and y > 2x + 4
Next, we make a plot of the system to determine the solution
The shaded area in the plot represent the solution to the inequality
In this case, one of the coordinates in the shaded area has a coordinate of (-2, 5)
Read more about inequality at
brainly.com/question/25275758
#SPJ1
Reflecting over the line x=-5, then reflecting over the line y=4 is the same as what transformation?
Answer:
Reflecting over the line x = -5 then reflecting over the line y = 4 is the same as a horizontal translation to, 2 times the x-coordinate value and then moving 10 units to right and a vertical translation of two times the y-coordinate value and then moving 8 units down, given as follows;
Coordinates of the preimage is (x, y)
Coordinate of the image will become ((2·x + 10), (2·y - 8))
Step-by-step explanation:
Reflecting over the line x = -5 gives the x-coordinate of the image as being equidistant from the line x = -5 as the preimage while the y-coordinate remain unchanged
Therefore, we have;
Coordinates of the preimage = (x, y)
Coordinates of the image = (2×(x - (-5)), y) = (2×(x + 5), y)
Similarly, for the reflection across the line y = 4, the x-coordinate value remain unchanged and therefore. we have;
Coordinates of the preimage = (x, y)
Coordinates of the image = (x, 2×(y - 4))
The cumulative transformation becomes
Coordinates of the preimage = (x, y)
Coordinates of the image = (2×(x + 5), 2×(y - 4)) = ((2·x + 10), (2·y - 8))
Which is the same as a horizontal translation to, twice the x-coordinate value and then moving 10 units to right and a vertical translation of twice the y-coordinate value and then moving 8 units down.
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answer:
The correct answer is A
Step-by-step explanation:
Which of the following tables represents a linear relationship that is also proportional?
(A)
x −1 0 1
y 0 2 4
(B)
x −3 0 3
y −2 −1 0
(C)
x −2 0 2
y 1 0 −1
(D)
x −1 0 1
y −5 −2 1
Answer: 我不知道你好
Step-by-step explanation:
Consider the vectors: a=(1,1,2),b=(5,3,λ),c=(4,4,0),d=(2,4), and e=(4k,3k)
Part(a) [3 points] Find k such that the area of the parallelogram determined by d and e equals 10 Part(b) [4 points] Find the volume of the parallelepiped determined by vectors a,b and c. Part(c) [5 points] Find the vector component of a+c orthogonal to c.
The value of k is 1, the volume of the parallelepiped is 12 + 4λ, and the vector component of a + c orthogonal to c is (1,1,1.5).
a) Here the area of the parallelogram determined by d and e is given as 10. The area of the parallelogram is given as `|d×e|`.
We have,
d=(2,4)
and e=(4k,3k)
Then,
d×e= (2 * 3k) - (4 * 4k) = -10k
Area of parallelogram = |d×e|
= |-10k|
= 10
As we know, area of parallelogram can also be given as,
|d×e| = |d||e| sin θ
where, θ is the angle between the two vectors.
Then,10 = √(2^2 + 4^2) * √((4k)^2 + (3k)^2) sin θ
⇒ 10 = √20 √25k^2 sin θ
⇒ 10 = 10k sin θ
∴ k sin θ = 1
Therefore, sin θ = 1/k
Hence, the value of k is 1.
Part(b) The volume of the parallelepiped determined by vectors a, b and c is given as,
| a . (b × c)|
Here, a=(1,1,2),
b=(5,3,λ), and
c=(4,4,0)
Therefore,
b × c = [(3 × 0) - (λ × 4)]i + [(λ × 4) - (5 × 0)]j + [(5 × 4) - (3 × 4)]k
= -4i + 4λj + 8k
Now,| a . (b × c)|=| (1,1,2) .
(-4,4λ,8) |=| (-4 + 4λ + 16) |
=| 12 + 4λ |
Therefore, the volume of the parallelepiped is 12 + 4λ.
Part(c) The vector component of a + c orthogonal to c is given by [(a+c) - projc(a+c)].
Here, a=(1,1,2) and
c=(4,4,0).
Then, a + c = (1+4, 1+4, 2+0)
= (5, 5, 2)
Now, projecting (a+c) onto c, we get,
projc(a+c) = [(a+c).c / |c|^2] c
= [(5×4 + 5×4) / (4^2 + 4^2)] (4,4,0)
= (4,4,0.5)
Therefore, [(a+c) - projc(a+c)] = (5,5,2) - (4,4,0.5)
= (1,1,1.5)
Therefore, the vector component of a + c orthogonal to c is (1,1,1.5).
Conclusion: The value of k is 1, the volume of the parallelepiped is 12 + 4λ, and the vector component of a + c orthogonal to c is (1,1,1.5).
To know more about orthogonal visit
https://brainly.com/question/32250610
#SPJ11
Determine if the table how a proportional relationhip. X 25. 6 72. 8 77. 2 y 6. 4 18. 2 19. 3 Ye, it i proportional becaue all y over x ratio are equivalent to one fourth. Ye, it i proportional becaue all y over x ratio are equivalent to one third. No, it i not proportional becaue 25. 6 over 6. 4 doe not equal 18. 2 over 72. 8. No, it i not proportional becaue 18. 2 over 72. 8 doe not equal 77. 2 over 19. 3
Proportional relationship for the given table is true and is define as
Yes, it is proportional because all y over x ratio are equivalent to one fourth.
As given in the question,
Value of x and y in the given table are :
x : 25. 6, 72. 8, 77. 2
y : 6. 4, 18. 2, 19. 3
To check the proportional relationship there should exist constant of proportionality that ratio of corresponding y/x should be constant.
y / x for all the values of x and y:
First values:
y /x = 6.4 / 25.6
= 0.25
Second values:
y/x = 18.2/ 72.8
= 0.25
Third values :
y /x = 19.3/ 77.2
= 0.25
0.25 is equivalent to One fourth ( 1/4).
Constant of proportionality exist = 0.25 or One fourth.
Therefore, in the table first option: yes, it is proportional because all y over x ratio are equivalent to one fourth is correct.
The complete question is:
Determine if the table how a proportional relationship.
x : 25. 6, 72. 8, 77. 2
y : 6. 4, 18. 2, 19. 3
Yes, it is proportional because all y over x ratio are equivalent to one fourth.
Yes, it is proportional because all y over x ratio are equivalent to one third.
No, it is not proportional because 25. 6 over 6. 4 doe not equal 18. 2 over 72. 8.
No, it is not proportional because 18. 2 over 72. 8 doe not equal 77. 2 over 19. 3
Learn more about table here
brainly.com/question/11533874
#SPJ4
Solve for x:
\(\sf 4x+5=1+5x\)
Thanks
Answer:
Hope it will help you a lot.
help show work
42,44,46,48,50
assig 9
Answer: see below
Step-by-step explanation:
42) 11 < 3y + 2 < 20
-2 -2 -2
9 < 3y < 18
÷3 ÷3 ÷3
3 < y < 6
Graph: o----------o
3 6
44) 36 ≥ 1 - 5z > -21
-1 -1 -1
35 ≥ -5z > -22
÷ -5 ↓ ÷ -5 ↓ ÷ -5
7 ≤ z < 4.4
Graph: o------------ ·
4.4 7
46) 6b + 3 < 15 or 4b - 2 > 18
-3 -3 +2 +2
6b < 12 4b > 20
÷6 ÷6 ÷4 ÷4
b < 2 or b > 5
Graph: ←--------o o---------→
2 5
48) 8d < -64 and 5d > 25
÷8 ÷8 ÷5 ÷5
d < -8 and d > 5
there is no number that is both less than - 8 and greater than 5
No Solution
Graph: (empty)
50) 15x > 30 and 18x < -36
÷15 ÷15 ÷18 ÷18
x > 2 and x < -2
there is no number that is both less than - 2 and greater than 2
No Solution
Graph: (empty)
Find h(-5) for the function h(x)= -5x+9.
h(-5) =
Answer:
h(-5) = 34
Step-by-step explanation:
h(x) = -5x + 9
h(-5) = -5(-5) + 9 = 25 + 9 = 34
3√2-√6+10√2
simplified form
The value of simplified form of the expression is,
⇒ √2 (13 - √3)
We have to given that;
The expression is,
⇒ 3√2-√6+10√2
Now, We can simplify as;
⇒ 3√2 - √6 + 10√2
⇒ 3√2 - √2 × √3 + 10√2
⇒ 13√2 - √2 × √3
⇒ √2 (13 - √3)
Thus, The value of simplified form of the expression is,
⇒ √2 (13 - √3)
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ1
It can be shown that Use this formula to show that n=1 cos(nx) 72 TX n² 4 2 n=1 = (−1)n+1 (2n-1)³ 32 || +
The given series Σ(cos(nx))/(n²) is equivalent to the series f(x) with \(a_0 = 0 and b_n = (-1)^(n+1) * (2n-1)^3 / 32.\)
To show the formula for the sum of the series Σ(cos(nx))/(n²), we can use complex numbers and Euler's formula. Recall Euler's formula:
\(e^(ix)\)= cos(x) + i*sin(x)
Now, let's consider the following function:
f(x) = \(e^(ix) + e^(-ix)\)
Using Euler's formula, we can rewrite this function as:f(x) = (cos(x) + isin(x)) + (cos(-x) + isin(-x))
= (cos(x) + isin(x)) + (cos(x) - isin(x))
= 2*cos(x)
Next, let's consider the power series expansion of f(x):
f(x) = ∑ (a_n * \(x^n)\)
where a_n represents the coefficients of the power series. We can find the coefficients by differentiating f(x) and evaluating at x = 0.
Differentiating f(x) with respect to x:
f'(x) = \(-ie^(ix) + ie^(-ix)\)
= -i*(cos(x) + isin(x)) + i(cos(-x) + isin(-x))
= -icos(x) + isin(x) + icos(x) - i*sin(x)
= 0
Since f'(x) = 0, all the coefficients except for a_1 are zero. Therefore, we have:
f(x) = a_1 * x
Substituting the power series expansion of f(x) back into the original function:
2*cos(x) = a_1 * x
Now, we can find the value of a_1 by evaluating both sides of the equation at x = 0:
2*cos(0) = a_1 * 0
2 = 0
Since the equation is not satisfied for x = 0, the coefficient a_1 must be zero.
Therefore, we have:
f(x) = ∑ (a_n * x^n)
= a_0 + a_2x^2 + a_3x^3 + ...
Plugging in a_1 = 0, we can rewrite the series as:
f(x) = a_0 + a_2x^2 + a_3x^3 + ...
= a_0 + a_2x^2 + a_3x^3 + ...
Now, let's focus on the term involving cos(nx):
cos(nx) = Re(e^(inx))
Using the power series expansion of e^(inx):
cos(nx) = Re(e^(inx))
\(= Re(1 + inx + (inx)^2/2! + (inx)^3/3! + ...)\)
\(= Re(1 + inx + (i^2 * n^2 * x^2)/2! + (i^3 * n^3 * x^3)/3! + ...)\)
= Re(1 + inx - n^2 * x^2/2! - i * n^3 * x^3/3! + ...)
= 1 - n^2 * x^2/2! + n^4 * x^4/4! - ...
Substituting this back into the series:
f(x) = ∑ (a_n * x^n)
\(= a_0 + a_2x^2 + a_3x^3 + ...\)
\(= a_0 + a_2*(1 - n^2 * x^2/2!) + a_3*(1 - n^2 * x^2/2!)^2 + ...\)
Now, let's focus on the terms involving n^2:
a_2*(1 - n^2 * x^2/2!) + a_3*(1 - n^2 * x^2/2!)^2 + ...
\(= (a_2 + a_3 - a_2 * n^2 * x^2/2! - 2*a_3 * n^2 * x^2/2! + ...)\)
To simplify further, let's denote b_n as the coefficient for the terms involving n^2:
\(b_n = (a_2 + a_3)\)
Now, we have:
f(x) = ∑ \((a_n * x^n)\)
\(= a_0 + b_n * (1 - n^2 * x^2/2!) + ...\)
Finally, we can write the series as:
f(x) = a_0 + ∑ (b_n * (1 - n^2 * x^2/2!))
The given series Σ(cos(nx))/(n²) is equivalent to the series f(x) with a_0 = 0 and \(b_n = (-1)^(n+1) * (2n-1)^3 / 32.\)
Therefore, we have:
Σ(cos(nx))/(n²) = ∑ ((-1)^(n+1) * (2n-1)^3 / 32 * (1 - n^2 * x^2/2!))
Learn more about Euler's formula here:
https://brainly.com/question/29899184
#SPJ11
A bicyclist rides down a street with a constant speed of fifteen miles per hour. Five meters behind the cyclist, a bus drives down the street in the same direction with an initial speed of 40 mph. As the bus approaches the bus stop that is 30 meters in the distance, it begins to slow down smoothly until stopping, passing the bicycle in the process.
What is the bicycle's speed in meters per second? (1 mile - 1609 m)
What is the magnitude and direction of the bus acceleration?
How long after it begins decelerating will the bus be traveling at the same speed as the bicycle?
When the bus passes the bicycle, how far is the bicycle from the bus stop?
Bicycle speed: 6.71 m/s, Bus acceleration: not provided, Time to reach bicycle's speed: unknown, Distance to bus stop when bus passes bicycle: 25 meters.
What is the bicycle's speed in meters per second, the magnitude and direction of the bus's acceleration, the time it takes for the bus to reach the bicycle's speed, and the distance between the bicycle and the bus stop when the bus passes the bicycle?
The bicycle's speed is approximately 6.71 meters per second. This is calculated by converting the given speed of 15 miles per hour to meters per second. The magnitude of the bus's deceleration is not provided. We are unable to determine the exact value of the bus's deceleration without additional information. Since the magnitude of the bus's deceleration is unknown, we cannot calculate the exact time it takes for the bus to reach the bicycle's speed. To determine this, we would need the deceleration value. When the bus passes the bicycle, the distance between the bicycle and the bus stop is approximately 25 meters. This is found by subtracting the initial distance of 5 meters (distance between the bicycle and the bus) from the total distance to the bus stop, which is given as 30 meters.
Learn more about magnitude and acceleration
brainly.com/question/20115074
#SPJ11
Answer each question.
1. Where were the straw, the coal and the bean?
2. How the coal, the bean and the straw did save their lives?
3. What plan have they made for themselves? +nestrowtnec
4. What did the straw and the coal did to cross the brook?
5. What did happen with the bean? Vit, caughtfli Veic
-virg
6. Who did help the bean and how?
The questions seem to be related to a story or a fable. However, without specific context or information about the story, it is challenging to provide accurate answers.
It seems that the questions refer to a narrative involving characters such as straw, coal, bean, and potentially others.
To provide a general response:
1. The whereabouts of the straw, coal, and bean are unknown without further information about the story.
2. The manner in which the coal, bean, and straw save their lives is also unclear without additional context. In a story, the characters might encounter a dangerous situation and devise a plan to overcome it, but without specifics, it is difficult to provide a precise answer.
3.The plan made by the characters is unknown, as the given text "+nestrowtnec" does not form a clear sentence or phrase. It appears to be a jumbled or reversed word.
4. Again, without knowing the story or the situation, it is impossible to determine what actions the straw and coal took to cross the brook.
5. The given text "-virg" does not provide any clear information about what happened to the bean. It appears to be a jumbled or reversed word.
6. Similarly, without knowing the story and its characters, it is not possible to identify who helped the bean or how they provided assistance.
For more such questions on story visit:
https://brainly.com/question/31124669
#SPJ11
Note:
It is a english question
Why is the property of closure important in math?
Understanding a set’s nature or properties is made easier by its closure property
What is the Closure Property?The set is closed if it has the closure property. This means that any operation performed on an element within a set will provide a result that belongs to that element’s set.
Why Closure Property is important?
Understanding a set’s nature or properties is made easier by its closure property. Mathematical applications of closure are numerous. Any operation that adheres to this condition is said to be “closed” or to have “fulfilled the operation’s closure property.”
Example – The set of even number is closed under subtraction
Even – Even = Even
6 – 4 = 2
To know more about Closure Property, visit the given link:
https://brainly.com/question/15198415
#SPJ4
A new store has sales of $2000 its first week, and is sales grow by 2% each week. choose true or false for each statement about the geometric series that describes the store's total sales the first
6 weeks
a. a = $2000 true or false
b. r=0.02 true or false
c. n=6 true false
d. s(n)=$12,245 true or false
a. The sales of $2000 in the first week would be the first term (a) of the series. False.
b. The problem states that the sales grow by 2% each week, which means the common ratio (r) is indeed 0.02 (2% expressed as a decimal).True.
c. The problem specifies the first 6 weeks, so the number of terms (n) would be 6. True.
d. The statement "s(n) = $12,245". false.
The sum of the first 6 terms of the geometric series describing the store's total sales would be approximately $2040.68.
In a geometric series, 'a' represents the first term or initial value.
The sales of $2000 in the first week would be the first term (a) of the series.
The statement "r = 0.02" is true. In a geometric series, 'r' represents the common ratio between consecutive terms.
The statement "n = 6" is true.
In a geometric series, 'n' represents the number of terms.
The statement "s(n) = $12,245" is false. In a geometric series, 's(n)' represents the sum of the first 'n' terms of the series.
To calculate the sum of the first 6 terms, we can use the formula:
s(n) = a × (1 - rⁿ) / (1 - r)
Using the values given in the problem, the sum of the first 6 terms would be:
s(6) = $2000 × (1 - 0.02^6) / (1 - 0.02)
s(6) = $2000 × (1 - 0.0000645765) / 0.98
s(6) = $2000 × 0.9999354235 / 0.98
s(6) ≈ $2040.68
For similar questions on series
https://brainly.com/question/30087275
#SPJ8
pan of which followi. Aequired: 1. A Proakie al inoome absement for the year ansed Kowember 20 , sora. C. Prepare a baiance theef as of Noventer 30 2oya acied Noventer 30, a VE. have been tho awount of aw meane ar not ioss?
The income statement should include all sources of revenue and deduct all applicable expenses to calculate the net income or loss for the period. To create a balance sheet gather information about the company's assets, liabilities, and shareholders' equity as of that specific date. To determine whether there has been an increase or decrease compare the net income figure from a previous period with the net income figure from the current period
1) To prepare a projected income statement for the year ending November 20, sora, you would need to gather information about the revenues and expenses expected during that period. The income statement should include all sources of revenue and deduct all applicable expenses to calculate the net income or loss for the period.
2) To create a balance sheet as of November 30, 2oya, you will need to gather information about the company's assets, liabilities, and shareholders' equity as of that specific date. The balance sheet provides a snapshot of the company's financial position, showing what it owns, owes, and the remaining equity.
3) To determine whether there has been an increase or decrease in the amount of net income, you would need to compare the net income figure from a previous period (presumably November 20, sora) with the net income figure from the current period (ending November 30, 2oya). If the net income has increased, it means the company has generated more profit during the current period compared to the previous one. Conversely, if the net income has decreased, it indicates a decline in profitability.
Overall, the task involves preparing a projected income statement and balance sheet and analyzing the change in net income to assess the company's financial performance.
Learn more about profit here:
https://brainly.com/question/26483369
#SPJ11
After being rearranged and simplified, which two of the following equations could be solved using the quadratic formula?
PLEASE HELP:BRAINLIEST
Answer:
A
Step-by-step explanation:
solve the following equation 18x-3=4x+11
Answer:
Hope this helps
fist add three to both sides
then subtract 4x from both sides
then divide both side with the same factor
a horse with no name
father and son make a 64km journey through the desert, starting at 4pm
Answer:
----------------------------------------------------------------------------------------------------------
The time they arrive at the destination is 9:24 am the next day
How to determine the time they arrive at the destination.
From the question, we have the following parameters that can be used in our computation:
Time = 4 pm
Distance = 64 km
Start by calculating time taken for the father to ride the horse and son to walk the first 32 km:
Time = Distance / (Difference between rates of father and son)
Time = 32 km / (8 km/h - 3 km/h)
Time = 32 km / 5 km/h
Time = 6.4 hours
Calculate time taken for the son to ride the horse and father to walk the remaining 32 km:
Time = Distance / (Difference in Speed)
Time = 32 km / (8 km/h - 4 km/h)
Time = 32 km / 4 km/h
Time = 8 hours
So, we have
Total time = 6.4 hours + 8 hours + 3 hours break + 4 pm
Evaluate
Total time = 9:24 am the next day.
the figure below is a net for the box to the right what is the surface area of the box
Answer: Your answer will be 24
Hope it helped :D
Good luck!
Let m and n be 2 positive integers, such that m A. 0<√mn B. 1<√mn C. m<√mn D. √m<√mn<√n
Among the given conditions, the statements (C) and (D) are always true, while the statements (A) and (B) may or may not be true depending on the values of m and n.
Statement (A): 0 < √mn
This statement is not always true because if m or n is equal to 0, then the inequality would not hold. However, if both m and n are positive integers, then the square root of their product will be greater than 0.
Statement (B): 1 < √mn
Similar to statement (A), this statement is not always true. If m and n are both 1, then the inequality does not hold. However, if both m and n are greater than 1, then the square root of their product will be greater than 1.
Statement (C): m < √mn
This statement is always true. Since m is a positive integer, the square root of mn will always be greater than m.
Statement (D): √m < √mn < √n
This statement is also always true. Since m and n are positive integers, √m and √n will be positive real numbers. And since m < n, it follows that √m < √mn < √n.
Learn more about positive integers here:
https://brainly.com/question/18380011
#SPJ11
A car dealer purchases 20 new automobiles for $8000
each. If he sells 16 of them at a profit of 20%, for how much he
sell the remaining 4 to obtain an average profit of 18%? [$8800
The car dealer needs to sell the remaining 4 cars for $12,100 each to obtain an average profit of 18%.
How much for remaining 4 cars?Let's break down the problem step by step:
1. The car dealer purchases 20 new automobiles for $8000 each, so the total cost of the 20 cars is 20 * $8000 = $160,000.
2. The car dealer sells 16 of the cars at a profit of 20%. To calculate the selling price of these cars, we need to add the 20% profit to the cost price. The profit per car is 20% of $8000, which is (20/100) * $8000 = $1600. So, the selling price of each of the 16 cars is $8000 (cost price) + $1600 (profit) = $9600.
3. The car dealer wants to obtain an average profit of 18% for all 20 cars. We have already sold 16 cars, and we need to calculate the selling price of the remaining 4 cars to achieve the desired average profit.
4. Let's assume the selling price of the remaining 4 cars is x dollars.
5. To calculate the total selling price of all 20 cars, we sum up the selling prices of the 16 cars and the remaining 4 cars. So, the equation is:
(16 * $9600) + (4 * x) = $160,000 + (20% * $160,000)
(16 * $9600) + (4 * x) = $160,000 + (0.20 * $160,000)
153,600 + 4x = 160,000 + 32,000
4x = 48,400
x = 48,400 / 4
x = $12,100
Therefore, the car dealer needs to sell the remaining 4 cars for $12,100 each to obtain an average profit of 18%.
Learn more about automobiles
brainly.com/question/30435512
#SPJ11
when you are looking at a graph, you can say that average? why?
The average line shows the average of the data for a particular graph by drawing a line across the chart at the mean value points on the y-axis. By default, the average line label is displayed as a combination of line value and line title.
Definition of GraphicsGraph is a collection of data from several tables that will be presented or also displayed in the form of images, such as squares, circles, tubes, triangles, beams, cones or others. Graphics are also usually also interpreted as a framework or image that will be used to create a visualization object from data in tables with the aim of being able to provide information about a data from the material presenter to the recipient of the material.
In addition, graphs are also often interpreted as a description of the ups and downs of an existing data, or depicted by lines or pictures. The data used to create graphics can be in the form of numbers, letters, symbols, pictures, symbols, sayings, or paintings.
Learn more about graphic at https://brainly.com/question/10712002
#SPJ1
Answer this math question for 10 points
Measure of angle:
∠A = 36.86°
∠B = 90°
∠C = 53.13 °
Measure of side ,
AB = 28
BC = 21
CA = 35
Given triangle ABC.
Right angled at B.
Now, using trigonometric ratios to find angle A , B , C .
Right angled at B : ∠B = 90°
Angle A,
SinA = 21/35
∠A = 36.86
Angle C,
SinC = 28/35
∠C = 53.13
Now measures of side.
To find the length of side use sine rule .
Sine rule:
a/sinA = b/sinB = c /sinC
a = opposite side of angle A .
b = opposite site of angle B .
c = opposite side of angle C.
AB = 28
BC = 21
CA = 35
Hence the sides and angles of the triangles are measured .
Know more about sine rule,
https://brainly.com/question/30339239
#SPJ1
i need help urgently lease :D
Answer:
y=4
-2y=8
y=8/2
xndnndndnd
A random sample of 300 circuits generated 13 defectives.
(a) Use the data to test H0: p = 0.05 versusH1: p ≠ 0.05. Use α = 0.05. Find the P-valuefor the test.
(b) explaine how the question in part (a) could be answeredwith a confidence interval.
The interpretation would be: "Based on the given sample data, we are 95% confident that the true proportion of defectives in the circuits lies between the lower bound and the upper bound of the confidence interval."
To test the hypothesis H0: p = 0.05 versus H1: p ≠ 0.05, where p represents the proportion of defectives in the circuits, we can use the binomial distribution and perform a two-tailed test. Here's how you can calculate the P-value and answer part (a):
(a) Calculating the P-value:
Define the null hypothesis (H0): p = 0.05.
Calculate the sample proportion of defectives: P = x/n, where x is the number of defectives (13) and n is the sample size (300). In this case, P = 13/300 = 0.0433.
Calculate the test statistic (z-score) using the formula:
z = (P - p0) / sqrt[(p0 * (1 - p0)) / n]
where p0 is the hypothesized proportion under the null hypothesis. In this case, p0 = 0.05 and n = 300.
z = (0.0433 - 0.05) / sqrt[(0.05 * (1 - 0.05)) / 300] ≈ -0.6147
Determine the P-value by comparing the absolute value of the test statistic to the standard normal distribution (z-distribution) at the desired significance level (α = 0.05).
Since this is a two-tailed test, we need to find the area in both tails.
P-value = 2 * P(Z < -0.6147), where Z is the standard normal random variable.
Using a statistical table or calculator, you can find the P-value to be approximately 0.5397.
Therefore, the P-value for the test is approximately 0.5397.
(b) Using a confidence interval:
Alternatively, you can answer the question using a confidence interval. A confidence interval provides a range of plausible values for the true proportion of defectives.
To construct a confidence interval for the proportion, you can use the following formula:
CI = P ± z * sqrt((P * (1 - P / n),
where CI represents the confidence interval, P is the sample proportion of defectives, z is the critical value corresponding to the desired level of confidence, and n is the sample size.
For example, to construct a 95% confidence interval (α = 0.05), the critical value z is approximately 1.96.
CI = 0.0433 ± 1.96 * sqrt((0.0433 * (1 - 0.0433)) / 300)
By calculating this, you can find the lower and upper bounds of the confidence interval.
To know more about true proportion,
https://brainly.com/question/14125857
#SPJ11