Answer:
Part-to-part ratios provide the relationship between two distinct groups. For example, the ratio of men to women is 3 to 5, or the solution contains 3 parts water for every 2 parts alcohol.
Part-to-whole ratios provide the relationship between a particular group and the whole populations (including the particular group). For example, 3/5 of the students in the class are girls, or the mixture is 40% rye grass (40% is equivalent to saying 40 of every 100 parts).
what is the point-slope form of -4,7?
An equation for this line in the point-slope form will be y-7 = -2(x + 4).
What is the Point-slope form?
The equation of the straight line has its slope and given point. If we have a non-vertical line that passes through any point(x1, y1) and has a gradient m. then general point (x, y) must satisfy the equation. Point-slope is a specific form of linear equations in two variables:
y - y₁ = m(x - x₁)
Which is the required equation of a line in a point-slope form.
We need to find the equation of the line that passes through (-4, 7) and whose slope is -2.
Well, we will simply plug m = -2, x₁= -4, and y₁ = 7 into point-slope form.
y-y₁ = m(x-x₁)
Now substitute;
y-7 = -2(x - (-4))
y-7 = -2(x + 4)
Therefore, an equation for this line in the point-slope form will be y-7 = -2(x + 4).
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What is the first month in which the board will see the cumulative total number of cars shipped to Japan exceeded the cumulative total in Vietnam
The cumulative total in Vietnam j(n) is 23(n-1),cumulative takes into account all data up to the present. In month four, j(n) will be worth more than v(n).
Is the sum the same as the total?The distinction between total and cumulative is that total refers to the entirety of something, whereas cumulative takes into account all data up to the present.
When a new number is added to a series of numbers, the running total is updated by adding the new number's value to the previous running total. Partially sum is another name for it. Running totals serve two distinct objectives.
We take it for granted that you mean that vehicles delivered to Vietnam should be modeled by v(n) = 5 + 11 and those sent to Japan by j(n) = 23(n-1).
In month four, j(n) will be worth more than v(n).
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what is 2/3 an equivalent fraction of with a denominator of 10
Answer:
4/6, 8/12, 16/24, etc. are examples of equivalent fractions, but there are none with the denominator of 10.
Step-by-step explanation:
Hope this helps, and have a great day! :D
suppose w is a subspace of rnspanned by n nonzeroorthogonal vectors. explain why w d r
As W is spanned by n linearly independent vectors in ℝ^n, it means that the dimension of W is also n. This implies that W has the same dimension as ℝ^n, and therefore, W is equal to ℝ^n.
If w is a subspace of rnspanned by n non zero orthogonal vectors, then w is at most n-dimensional because there are only n vectors that can be used to span w. Any vector outside of the span of these n vectors will not be in w. Therefore, the dimension of w is less than or equal to n. Since w is a subspace of rn, which is n-dimensional, w must be a subset of Rn with a dimension less than or equal to n. Therefore, w d Rn. Suppose W is a subspace of ℝ^n spanned by n nonzero orthogonal vectors. This means that W is a vector space that is a subset of ℝ^n, and it can be generated by taking linear combinations of the n nonzero orthogonal vectors. Since the vectors are orthogonal, they are linearly independent, and their linear combinations form a basis for the subspace W.
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Which statement is true?
A: A system of equations consists of two or more linear equations that must be true at the same time.
B: A system of equations consists of exactly two equations that must be true at the same time.
C: A system of equations consists of two or more equations that must be true at the same time.
D: A system of equations consists of two or more equations with at least one linear equation such that all equations must be true at the same time.
ALGEBRA 1 CP
Write the number in decreasing order.
Answer: 9/2, 2.63, -2.47, -5sqrt(3), -18
Step-by-step explanation:
Using the Definitional proof, show that each of these functions is O(x2). (a) f(x) = x (b) f(x) = 9x + 5 (c) f(x) = 2x2 + x + 5 (d) f(x) = 10x2 + log(x)
To show that each function is O(x^2) using the Definitional proof, we need to find a constant c and a positive number k such that |f(x)| ≤ c|x^2| for all values of x greater than some value k.
(a) For function f(x) = x:
We need to find a constant c and k such that |x| ≤ c|x^2| for all x > k.
Let's choose c = 1 and k = 1.
|f(x)| = |x| ≤ 1 * |x^2| for all x > 1.
Therefore, f(x) = x is O(x^2).
(b) For function f(x) = 9x + 5:
We need to find a constant c and k such that |9x + 5| ≤ c|x^2| for all x > k.
Let's choose c = 14 and k = 1.
|f(x)| = |9x + 5| ≤ 14 * |x^2| for all x > 1.
Therefore, f(x) = 9x + 5 is O(x^2).
(c) For function f(x) = 2x^2 + x + 5:
We need to find a constant c and k such that |2x^2 + x + 5| ≤ c|x^2| for all x > k.
Let's choose c = 8 and k = 1.
|f(x)| = |2x^2 + x + 5| ≤ 8 * |x^2| for all x > 1.
Therefore, f(x) = 2x^2 + x + 5 is O(x^2).
(d) For function f(x) = 10x^2 + log(x):
We need to find a constant c and k such that |10x^2 + log(x)| ≤ c|x^2| for all x > k.
Let's choose c = 11 and k = 1.
|f(x)| = |10x^2 + log(x)| ≤ 11 * |x^2| for all x > 1.
Therefore, f(x) = 10x^2 + log(x) is O(x^2).
In each case, we have found a constant c and a value k such that the inequality |f(x)| ≤ c|x^2| holds for all x greater than k. This satisfies the definition of f(x) being O(x^2).
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You spin a spinner, Flip a coin, then spin the spinner again. Find the probability of the compound event, write your answer as a fraction or percent. If necessary round your answer to the nearest hundredth.The probability of spinning blue, flipping heads, then spinning a one is _
The probability is given by:
\(P=\frac{numb\text{er of favourable outcomes}}{\text{total number }of\text{ outcomes}}\)Therefore:
- The probability of spinning blue is:
Favorable outcomes = 1 (blue color)
Total outcomes = 3 (red, blue, and yellow)
\(P(\text{spinning blue)}=\frac{1}{3}\)- The probability of flipping heads is:
Favorable outcomes = 1 (head)
Total outcomes = 2 (head and tail)
\(P(\text{flipping head)=}\frac{1}{2}\)- The probability of spinning a one is:
Favorable outcomes = 1 (number 1)
Total outcomes = 3 (numbers 1, 2 and 3)
\(P(\text{spinning a one)=}\frac{1}{3}\)Next, the probability of the compound event:
\(P(\text{compound event)=}\frac{1}{3}\times\frac{1}{2}\times\frac{1}{3}=\frac{1\times1\times1}{3\times2\times3}=\frac{1}{18}\)Answer: the probability of the compound event is 1/18
Find the principal.
Annual rate of interest
=8%Period =5 years
Total interest = 2900 rupees
Answer:
7,250.
Step-by-step explanation:
Find the highest common factor of 36 and 16
Answer:
4
Step-by-step explanation:
Answer:
4.
Step-by-step explanation:
You could list all the factors and find the highest number, use a factor tree or the table.
Hope this helps and hope you're having a splendiferous day or night.
a sequence is Defined by the formula F(n+1)=f(n)-3. If f(4)=22, what is f(1)
a)10
b)13
c)31
d)34
Answer:
The answer is 13 hope it helps!<3
Step-by-step explanation:
PLEASE HURRY AND HELP
The sum of 5 consecutive numbers is 70. Determine the value of the smallest number.
==========================================================
Work Shown:
x = first number
x+1 = second number
x+2 = third number
x+3 = fourth number
x+4 = fifth number
Note how the numbers are one after another. Consecutive numbers follow this pattern. For example: 6,7,8,9,10 are consecutive numbers. One number follows right after the other.
---------------
Add up those five expressions. Set the sum equal to 70 and solve for x
(x)+(x+1)+(x+2)+(x+3)+(x+4) = 70
(x+x+x+x+x)+(1+2+3+4) = 70
5x+10 = 70
5x = 70-10
5x = 60
x = 60/5
x = 12 is the first number and the smallest number
x+1 = 12+1 = 13 is the second number
x+2 = 12+2 = 14 is the third number
x+3 = 12+3 = 15 is the fourth number
x+4 = 12+4 = 16 is the fifth number
Check:
12+13+14+15+16 = 70
which confirms our answer
-----------------
You could use a guess and check method, but the algebraic approach is much more efficient.
20 points How do you write four x cubed and also two x squared with numbers? asap please
Answer:
this should be the answer 4x^3 & 2x^2
Suppose an upward force of 15 N is added to the box. What will be the net vertical force on the box?
Answer:
Step-by-step explanation:
Suppose an upward force of 15 N is added to the box. What will be the net vertical force on the box?
THIS IS THE COMPLETE QUESTION BELOW;
1. Explain how you calculate the net force in any direction on the box.
2. Suppose an upward force of 15 N is added to the box. What will be the net vertical force on the box?
3. What force could be applied to the box to make the net force in the horizontal direction zero? Explain.
4. Suppose a force of 25 N to the right is added to the box. What will be the net force to the right?
CHECK THE ATTACHMENT FOR THE FIQURE.
1)since the given horizontal forces are acting on the box at opposite direction then
NET FORCE= (100- 50)N
= 50N( this is because the 100N and 50N acting Horizontally will cancel each other, then the remaining force is 50N.
✓Since, the two vertical forces also acted on the box in opposite direction, then
NET FORCE= (25 25)N
= 0N
Note: horizontal forces are one acting from right to left and vice versa, while vertical forces are ones acting from up to down and vice versa.
HENCE, NET FORCE = 50N + 0N= 50N
2) since the net vertical force was 0N, if
15N force is added then we still have NET FORCE OF 15N
3) if force of 50N is applied to horizontal forces moving from left to right then NET HORIZONTAL FORCES= 0N
4) since, the net force for the box is 50N, if Horizontal force of 25N is added moving left to right then NET FORCE = 25N for whole box.
(Present value of complex cash flows) How much do you have to deposit today so that beginning 11 years from now you can withdraw $14,000 a year for the next 7 years (periods 11 through 17) plus an additional amount of $28,000 in the last year (period 17)? Assume an interest rate of 11 percent. The amount of money you have to deposit today is $ (Round to the nearest cent.)
You would need to deposit approximately $78,425.99 today in order to withdraw $14,000 a year for the next 7 years and receive an additional $28,000 in the last year, assuming an interest rate of 11%.
To calculate the present value of the complex cash flows, we need to find the present value of the annuity payments for the next 7 years and the present value of the additional amount in the last year. Let's calculate each part separately: Present Value of the Annuity Payments: The annuity payments are $14,000 per year for 7 years. We can calculate the present value using the formula for the present value of an ordinary annuity: PV = CF * [(1 - (1 + r)^(-n)) / r]. Where PV is the present value, CF is the cash flow per period, r is the interest rate, and n is the number of periods. Using an interest rate of 11% and 7 periods, we have: PV_annuity = $14,000 * [(1 - (1 + 0.11)^(-7)) / 0.11]
Present Value of the Additional Amount: The additional amount in the last year is $28,000. Since it is a single cash flow in the future, we can calculate its present value using the formula for the present value of a single amount: PV_single = CF / (1 + r)^n. Where PV_single is the present value, CF is the cash flow, r is the interest rate, and n is the number of periods. Using an interest rate of 11% and 6 periods (since it occurs in the 17th year), we have: PV_single = $28,000 / (1 + 0.11)^6. Total Present Value: The total present value is the sum of the present value of the annuity payments and the present value of the additional amount:
Total PV = PV_annuity + PV_single
Now let's calculate the values: PV_annuity = $14,000 * [(1 - (1 + 0.11)^(-7)) / 0.11] ≈ $66,698.92, PV_single = $28,000 / (1 + 0.11)^6 ≈ $11,727.07, Total PV = $66,698.92 + $11,727.07 ≈ $78,425.99. Therefore, you would need to deposit approximately $78,425.99 today in order to withdraw $14,000 a year for the next 7 years and receive an additional $28,000 in the last year, assuming an interest rate of 11%.
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Integrated circuits from a certain factory pass quality test with probability ,8,p=,8. The outcomes of tests are mutually independent. Use The CTL to estimate the probability of finding at most of 50 acceptable circuits in a batch of 60 .
The estimated probability of finding at most 50 acceptable circuits in a batch of 60 is approximately 0.6591.
What is the estimated probability of obtaining no more than 50 acceptable circuits in a batch of 60, given a pass probability of 0.8 and independent outcomes?To estimate the probability of finding at most 50 acceptable circuits in a batch of 60 from a certain factory, where the probability of passing the quality test is (p = 0.8) and the outcomes of the tests are mutually independent, we can use the Central Limit Theorem (CLT).
The CLT states that for a large enough sample size, the distribution of the sample mean approaches a normal distribution, regardless of the shape of the population distribution.
Let's denote (X) as the number of acceptable circuits in a batch of 60. Since each circuit passes the test with a probability of 0.8, we can model (X) as a binomial random variable with parameters (n = 60) and (p = 0.8).
To estimate the probability of finding at most 50 acceptable circuits, we can calculate the cumulative probability using the normal approximation to the binomial distribution.
Since the sample size is large \((\(n = 60\))\), we can approximate the distribution of (X) as a normal distribution with mean \(\(\mu = np = 60 \times 0.8 = 48\)\) and standard deviation \(\(\sigma = \sqrt{np(1-p)}\) = \(\sqrt{60 \times 0.8 \times 0.2} \approx 4.90\).\)
Now, we want to find the probability of\(\(P(X \leq 50)\)\). We can standardize the value using the z-score:
\(\[P(X \leq 50) = P\left(\frac{X - \mu}{\sigma} \leq \frac{50 - 48}{4.90}\right) = P(Z \leq 0.41)\]\)
Using the standard normal distribution table or calculator, we can find that \(\(P(Z \leq 0.41) \approx 0.6591\).\)
Therefore, the estimated probability of finding at most 50 acceptable circuits in a batch of 60 is approximately 0.6591.
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The equation A equals P equals quantity 1 plus 0.05 over 4 end quantity all raised to the power of 4 times t represents the amount of money earned on a compound interest savings account with an annual interest rate of 5% compounded quarterly. If after 15 years the amount in the account is $12,065.51, what is the value of the principal investment? Round the answer to the nearest hundredths place.
$5,725.90
$6,339.61
$10,014.53
$11,481.12
The value of the principal investment is given as follows:
$5,725.90.
What is compound interest?The amount of money earned, in compound interest, after t years, is given by:
\(A(t) = P\left(1 + \frac{r}{n}\right)^{nt}\)
In which:
P is the principal, which is the value of deposit/loan/....r is the interest rate, as a decimal value.n is the number of times that interest is compounded per year, annually n = 1, semi-annually n = 2, quarterly n = 4, monthly n = 12.The parameters for this problem are given as follows:
t = 15, A(t) = 12065.51, r = 0.05, n = 4.
Hence the principal can be obtained as follows:
P(1 + 0.05/4)^(4 x 15) = 12065.51
2.1072P = 12065.51
P = 12065.51/2.1072
P = $5,725.90
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What i the meaure in radian for the central angle of a circle whoe radiu i 9 cm and intercepted arc length i 7. 2 cm?
Enter your anwer a a decimal in the box. Radian
The central angle (in radians ) is 0.8 radians.
What is a cricle ?
A circle is a basic 2D shape measured by its radius. A circle divides the plane into two areas: interior and exterior. Similar to line type. Imagine a line segment bending until the ends connect. Arrange the loops so that they form a perfect circle.
we know that,
arc length = radius * central angle (in radians)
and central angle (in radians) = arc length / radius
by substituting the given values
arc length = 7.2
radius=9
we get,
central angle (in radians) = 7.2 / 9
=0.8 radians
Hence , the central angle = 0.8 radians
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Estimate the value of
0.581 -0.246
The value of expression is,
⇒ 0.335
What is mean by Subtraction?Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
The expression is,
⇒ 0.581 - 0.246
Now,
Since, The expression is,
⇒ 0.581 - 0.246
After subtraction we get;
⇒ 0.581 - 0.246
⇒ 0.335
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Can you simplify i47 as much as possible
Answer:
(
i
4
)
11
(
i
2
⋅
i
)
(i4)11(i2⋅i)
thats the answer
please answer thissssssssssssssssssss
Answer:
B.) The interquartile range of the data is 2
Step-by-step explanation:
The equation for the motion of an object with constant acceleration is d=vt+0.5at2where d is distance traveled in ft, v is starting velocity in ft/s, a is acceleration inft/s2, and t is time in seconds. A racecar begins with a velocity of 200 ft/s andaccelerates at 100 ft/s2.8Write an expression for the distance the car travels after t seconds.
Replacing the values in the equation, we have:
D(t) = (200 ft/s)*t + 0.5*(100 ft/s2)*t^2
D(t) = (200 ft/s)*t + (50 ft/s2)*t^2 (Multiplying)
The answer is:
D(t) = (200)*t + (50)*t^2 (Distance in ft)
a biologist is studying the depths of plants growing near the surface of the ocean he uses negeitive numbers to represent the depths of the plants he finds below sea level.the table shows the depths of four plants order the number from least to greatest
a) The data in ascending Order; -83/4 < -67/4 < -62/4 < -1/4.
b) Sea Grass is the furthest the Surface of water.
What is Ascending Order?Numbers can be arranged in ascending order, from least value to highest value. The arrangement is left to right. Increasing order is another name for ascending order.
Given that -20 3/4, -15 1/2, -14 3/4, -1/4
Now, the above fraction into Normal fraction;
-83/4, -31/2, -67/4, -1/4.
Now, Arranging the data in ascending Order;
-83/4 < -67/4 < -62/4 < -1/4.
b) Since Sea Grass is the furthest below the Surface of water.
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what is 2 to the 14 power
Answer:
16,384
Step-by-step explanation:
Charlotte ordered dinner to be delivered to her house. The dinner cost d dollars before any tax or discounts were applied. She had a coupon for a 10% discount on the cost after an 8% tax was applied. She added a 16% tip to the total before any tax or discounts were applied. Which expressions could represent the total amount Charlotte paid
Answer:
1.132d
Step-by-step explanation:
Cost of the dinner=$d
Coupon=10% after
Tax=8%
Tax=0.08d
Tax + cost of dinner= d + 0.08d
Coupon for 10% discount after tax
10% coupon discount means she will pay 100% - 10%( coupon)
=90%
Price=90%(d + 0.08d)
=0.9(1.08d)
She added 16% tip to the total cost before any price or discount was applied
16% of d
=0.16*d
=0.16d
New price= 0.09(1.08d) + 0.16d
=0.972d + 0.16d
=1.132d
a scale drawing of a school bus has a scale of 1/2 in to 5 ft. if the length of the school bus is four and a half inches on the scale drawing, what is the actual length of the bus?
Answer:
45 feet
Step-by-step explanation:
Set up Ratios
1/2 in/5 ft = 4 1/2 in/x
Solve for x by cross-multiplying:
\(\frac{1/2}{5}\) times \(\frac{4 1/2}{x}\)
4 1/2 times 5 = 22 1/2
1/2 times x = 1/2x
22 1/2 = 1/2x
45 = X
Therefore the actual length of the bus is 45 feet.
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Evaluate 5x-2w+t
Help needed!!
the answer is the same
The value of x is (2w - t)/5.
The value of w is (5x + t)/2.
The value of t is 2w - 5x.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
5x - 2w + t = 0
Solve for x.
5x - 2w + t = 0
5x = 2w - t
x = (2w - t)/5
Solve for w.
5x - 2w + t = 0
5x + t = 2w
w = (5x + t)/2
Solve for t.
5x - 2w + t = 0
t = 2w - 5x
Thus,
The value of x, w, and t is given above.
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opulation Growth The population of Silver Run in the year 1890 was 6250 . Assume the population increased at a rate of 2.75 %per year.
(a) Estimate the population in 1915 and 1940 .
(b) Approximately when did the population reach 50,000?
the population in 1915 and 1940 is 24264.5
the population reach 50,000 is 77 years
In 1891 the population would be 6250 x ( 1+ 0.0275)
In 1832 the population would be [ 6250 x ( 1+0.0275 ) ] x (1+0.0275)
in 1893 the population would be [6250 x ( 1+0.0275) ] x ( 1+0.0275) x (1+0.0275)
p= 6250(1.0275)^t
where t= number of years till 1890
t=25
p= 6250(1.0275) ²⁵
= 6250 x 1.9704
= 12314.8
t=50
p= 6250(1.0275) ⁵⁰
= 6250 x 3.8823
=24264.5
To reach 50,000
50000= 6250(1.0275)^t
(1.0275)^t = 50000 /6250
(1.0275)^t =8
Take log on both sides
log (1.0275)^t = log 8
t= log8/ log (1.0275)
t=76.6%
Hence
the population in 1915 and 1940 is 24264.5
the population reach 50,000 is 77 years
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If a heptagon has an area of 105 in2, what is the measure of one side ?
Answer:
5.38 inches
Step-by-step explanation:
The formula for Area of an Heptagon
= A=7/4a²cot(180°/7)
Area = 105in²
Side a = ?
The formula for Side a
= √4A ×tan (180°/7)/7
= √4 × 105 × tan (180°/7) /7
= 5.37536 inches
Approximately = 5.38 inches.
Twelve rewritable CD's cost $20.00. How much should 30 costs at the same rate?
Please help!!!!