Answer:
Step-by-step explanation:
m has a slope of -2 and a y intercept of 4
y = -2x + 4
n has a slope of 1 and a y intercept of -1
y = 1x - 1
y = x - 1
Ah!... the invisible questions in a sideways posted image.
t has a slope of zero and a y intercept of 3
y = 0x + 3
y = 3
p has infinite slope and no y intercept.
x = -5
Triangle RST with R(1, 2), S(4, 2), T(2, -3);
270° counterclockwise
Answer:
Step-by-step explanation:
270 counter clockwise = 90 clockwise
This is (x, y) ---> (y, -x).
So R'S'T' will be R'(2, -1), S'(2, -4) and T' = (-3, -2)
HURRY AND ANDWER ASAP PLZ answer with work plz and thanks
A cap and a shirt together costs 22.52. If the shirt costs three times as much as the cap how much did each item cost?
Melanie Inc. has sales equal to $300,000 for the year. Its Accounts receivable balance is $100,000 and is made up of $50,000 30 days old, $20,000 60 days old, $11,000 90 days old and $19,000 over 120 days old. It has a debit balance of $400 in Allowance for Doubtful Accounts. The rate of uncollectibility is as follows: 1% in the 1-30 days category, 3% in the 31-60 days category, 5% in the 61 to 90 days category and 25% over 120 days.
What is the balance in Bad Debts Expense for the year?
• $6,200
$6,400
• $6,800
• $6,000
The balance on the Bad Debt Expense account for the year, based on the accounts receivable balance and the rates of uncollectibility is $6, 800.
How to find the balance on bad debt expense?First, find the uncollected receivables estimate for the year using the rates of uncollectibility.
= ∑ (Age of receivable x Rate of uncollectibility)
= (50, 000 x 1%) + ( 20,000 x 3%) + (11, 000 x 5%) + (19, 000 x 25%)
= 500 + 600 + 550 + 4, 750
= $6, 400
The Bad Debts Expense for the year would then be:
= Uncollected receivables estimate + Debit balance on Allowance for doubtful accounts
= 6, 400 + 400
= $6, 800
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The sum of 3 times a number and 7 is equal to 2. Turn into an equation
Nao and Arban drive to work.
Nao drives 95 miles in 2.5 hours.
Arban drives 128 km in 1 hour 15 min.
Work out the difference between their average speeds in km/h.
1 mile = 1.6 km
Thank You.
Answer:
41.6 km/h
Step-by-step explanation:
Nao drives 95mi/2.5hr or 38 miles per hour, or 60.8 km/h
1 hr 15 min is the same as 1.25 hours
Arban drives 128km/1.25hr or 102.4 km/h
The difference is 102.4-60.8 = 41.6
2. (a) Use a prove by contradiction to show that if a and b are nonzero integers such that a divides b and a + b is odd, then a is odd. (b) Prove that if n is a positive integer, then n² does not equal 2(mod 4).
a. Assume a is even, so a = 2k for some integer k. Now let a and b be integers such that a divides b and a + b is odd.
Since a divides b, b = an for integer n, and in turn b = 2nk, which means b is even and hence a + b is also even. But this contradicts our initial assumption, so a must be odd.
b. Let n be even, so that n = 2k for some integer k. Then
n² = (2k)² = 4k²
so that n² ≡ 0 (mod 4).
Now let n be odd, so n = 2k + 1 for integer k. Then
n² = (2k + 1)² = 4k² + 4k + 1
so that n² ≡ 1 (mod 4).
Therefore n² is never congruent to 2 (mod 4).
In 2015, the average distance from Earth to the moon was about 3.74 x 105 km. The distance from Earth to Mars was about 9.25 x 107 km. How much farther is traveling from Earth to Mars than from Earth to the moon? Write your answer in scientific notation.
Traveling from Earth to Mars is approximately 9.249626 x 10^7 km farther than traveling from Earth to the moon.
Earth to Mars is compared to traveling from Earth to the moon, we need to calculate the difference between the distances.
The distance from Earth to the moon is approximately 3.74 x 10^5 km.
The distance from Earth to Mars is approximately 9.25 x 10^7 km.
To find the difference, we subtract the distance to the moon from the distance to Mars:
9.25 x 10^7 km - 3.74 x 10^5 km
To subtract these numbers, we need to make sure the exponents are the same. We can rewrite the distance to the moon in scientific notation with the same exponent as the distance to Mars:
3.74 x 10^5 km = 0.374 x 10^6 km (since 0.374 = 3.74 x 10^5 / 10^6)
Now we can perform the subtraction:
9.25 x 10^7 km - 0.374 x 10^6 km = 9.25 x 10^7 km - 0.374 x 10^6 km
To subtract, we subtract the coefficients and keep the same exponent:
9.25 x 10^7 km - 0.374 x 10^6 km = 9.25 x 10^7 - 0.374 x 10^6 km
Simplifying the subtraction:
9.25 x 10^7 - 0.374 x 10^6 km = 9.249626 x 10^7 km
Therefore, traveling from Earth to Mars is approximately 9.249626 x 10^7 km farther than traveling from Earth to the moon.
Scientific notation is a convenient way to express very large or very small numbers. It consists of a coefficient (a number between 1 and 10) multiplied by a power of 10 (exponent). It allows us to write and manipulate such numbers in a compact and standardized form.
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Here is a rectangle.
9 cm
7 cm
Work out the perimeter of the rectangle.
Answer:
P=32cm
Step-by-step explanation:
Answer: 32
Step-by-step explanation: 9+9 =18
7+7= 14
14+18=32
The following question has two parts. First, answer part A. Then, answer part B. The following information applies to both parts:
Part A: Daniel eats 1 and 1/2 loaves of bread in one whole week.
In one weekday, Daniel eats 2 slices of bread, and there are 5 weekdays in a week (Monday to Friday). So, in a week, Daniel eats 2 x 5 = 10 slices of bread on weekdays.
On the weekends, he eats 4 slices of bread per day, and there are 2 days in a weekend (Saturday and Sunday). So, in a week, Daniel eats 4 x 2 = 8 slices of bread on weekends.
Thus, in a week, Daniel eats a total of 10 + 8 = 18 slices of bread.
As there are 12 slices in each loaf, Daniel eats 18/12 = 1.5 loaves of bread in one week.
Therefore, Daniel eats 1 and 1/2 loaves of bread in one whole week.
Part B: Daniel's estimate of needing 6 loaves of bread for the 6-week vacation is not accurate. Based on the calculation, he would need 9 loaves of bread instead.
As calculated in Part A, Daniel eats 1.5 loaves of bread in one week.
So, in 6 weeks, he would need 1.5 x 6 = 9 loaves of bread.
Therefore, Daniel's estimate of needing 6 loaves of bread for the 6-week vacation is not accurate. Based on the calculation, he would need 9 loaves of bread instead.
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SLOPE DIGITAL ESCAPE ROOM
I need help finding the code
By finding all the four slopes, we can see that the word is ECHA.
How to find the word?We know that the general linear equation can be written as:
y = a*x + b
Where a is the slope and b is the y-intercept.
We know that if the line passes through (x₁, y₁) and (x₂, y₂) then the slope is:
s = (y₂ - y₁)/(x₂ - x₁)
With that formula we can get the slopes.
1) Using the points (0, 3) and (2, 4).
m = (4 - 3)/(2 - 0) = 1/2, so the letter is E.
2)Using (-1, -12) and (1, -8)
m = (-8 + 12)/(1 + 1) = 4/2 = 2, so the letter is C.
3) We have (2, -6) and (-4, -3) so:
m = (-3 + 6)/(-4 - 2) = 3/-6 = -1/2, so the letter is H
4)we can use the points (0, 3) and (1, 1), so:
m = (1 - 3)/(1 - 0) = -2, so the letter is A
Then the word is ECHA
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Two buildings are 18 m part. The shorter building is 12 m high while the taller one is 19 m high. Find the distance, x m between the top of the buildings.
The distance between the tops of the buildings is 28.5 meters.
To find the distance between the top of the buildings, we can use the concept of similar triangles.
Let's denote the height of the shorter building as "a" (12 m) and the height of the taller building as "b" (19 m). The distance between the buildings can be denoted as "c" (18 m), and the distance between the top of the buildings as "x" (which we need to find).
We can set up a proportion based on the similar triangles formed by the buildings:
a/c = b/x
Substituting the known values:
12/18 = 19/x
To find "x," we can cross-multiply and solve for "x":
12x = 18 * 19
12x = 342
x = 342/12
x = 28.5 m
Therefore, the distance between the tops of the buildings is 28.5 meters.
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Laurel divided 2/3 of a gallon of paint into 4 containers. How much of the of the
paint was put into each container?
Answer: 1/6 of the paint went to each container
Step-by-step explanation: Since we know he had 2/3 of a gallon of paint and they were divided into 4 containers, we have to divide 2/3 by 4 and when you do that you get 0.16666 continuous but in fraction for you arrive at 1/6 of a gallon of paint
Evaluate if f(x)=x+8+15,g(x)4x-2andh(x)=x-5x-14
Solve this question:
\(5 \times \frac{5}{10} \times 10 = \)
Thanks :)
Answer:
25
Step-by-step explanation:
Answer:
25
Step by step explanation:
Hey
Can someone please help me?
Answer:
4x+5y=8
Step-by-step explanation:
Find the slope first then
Use the slope intercept form to get the formula
Then rearrange it to find this answer
(I didnt write all the steps as they would get confusing)
Max is thinking of a number, which he calls n. He adds 8 and then doubles the sum. What is Max's final number if his starting number is 7? i need help pls
Based on the given situation, Max final number if his starting number is 7 is -4.5
AlgebraUnknown number = nHe adds 8n + 8
then doubles the sum2(n + 8)
starting number = 7So,
2(n + 8) = 7
2n + 16 = 7
2b = 7 - 16
2n = -9
n = -9/2
n = -4.5
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12 + 18 please tell me I need help
Answer:
1
12
+
18
___
30
Step-by-step explanation:
Hello I am really struggling so bad with school tonight. Can you help me with this program?
Answer: x=5
Given:
\(y-10=-2x\)We substitute y=0 to solve for x:
\(\begin{gathered} y-10=-2x \\ (0)-10=-2x \\ 0-10=-2x \\ -10=-2x \\ \frac{-10}{-2}=\frac{-2x}{-2} \\ x=5 \end{gathered}\)Therefore, x=5.
Determine if the sequence below is arithmetic or geometric and determine the common difference/ratio in simplest form
12,6,3
Answer:
The sequence is geometric
The common ratio is 0.5
Step-by-step explanation:
In the arithmetic sequence, there is a common difference between each two consecutive terms
In the geometric sequence, there is a common ratio between each two consecutive terms
Let us check the given sequence
∵ The first 3 terms are 12, 6, 3
∵ 6 - 12 = -6
∵ 3 - 6 = -3
∵ There is no common difference between the consecutive terms
∴ The sequence is not an arithmetic sequence
∵ 6 ÷ 12 = 0.5
∵ 3 ÷ 6 = 0.5
∴ There is a common ratio between each two consecutive terms
∴ The sequence is a geometric sequence
∴ The common ratio is 0.5
Given sequence is geometric sequence and common ratio between consecutive term is \(\frac{1}{2}\) .
In Arithmetic sequence , common difference between consecutive terms should be equal.
In Geometric sequence, common ratio between consecutive terms should be equal.
Given sequence, 12, 6, 3, ...
Since, common difference = \(6-12\neq 3-6\) , this is not arithmetic sequence.
Common ratio = \(\frac{6}{12}=\frac{3}{6}=\frac{1}{2}\) Because common ratio is are equal. Thus, given sequence is geometric sequence.
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Ricky Bobby wants to buy a new automobile for $55,000 in 8 years. How much money must Ricky's original investment be if he makes a single deposit into an account with monthly compounding and an annual interest rate of 3.90% in order to reach his goal? Round your answer to the nearest cent.
Answer:
PV= $40,279.36
Step-by-step explanation:
Giving the following information:
Number of periods= 8*12= 96 months
Interest rate= 0.039/12= 0.00325
Future value (PV)= $55,000
To calculate the initial investment, we need to use the following formula:
PV= FV/(1+i)^n
PV= 55,000 / (1.00325^96)
PV= $40,279.36
Translate 2 3 y − 9 < y + 1 into a sentence. Nine than two-thirds of number is less than the number .
The sentence translation of "2/3y - 9 < y + 1" is "Nine less than two-thirds of a number is less than the number."
To translate the inequality expression "2/3y - 9 < y + 1" into a sentence, we can break it down into smaller parts:
"2/3y" represents two-thirds of a number.
"9" represents the number nine.
"y + 1" represents the number increased by one.
Now let's construct the sentence:
"Nine less than two-thirds of a number" - This refers to the expression "2/3y - 9," indicating that we have subtracted nine from two-thirds of a number.
"is less than" - This is the comparison symbol in the inequality.
"the number" - This refers to the expression "y + 1," representing the number increased by one.
Combining these parts, we form the sentence: "Nine less than two-thirds of a number is less than the number."
Hence, the correct sentence translation of "2/3y - 9 < y + 1" is "Nine less than two-thirds of a number is less than the number."
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Read the information in the box below.
Last year during the hurricane season, the amount of rain that fell on the Texas Gulf Coast in October was 14 inches, which was 312times more than the rainfall during September of the same year. How much rain fell during the month of September?
Rebecca tried to solve the problem but made a mistake in her calculations. You must analyze Rebecca's work, identify the error, and then correctly solve the problem. Then, create a model to justify your thinking.
Rebecca's Math Calculations
Step 1: 14×312
Step 2: 141×72
Step 3: 982=49
Solution: In September, 49 inches of rain fell.
Be sure to –
Identify the error that the student made
Answer the question prompt
Create a pictorial model that represents the problem situation and justifies your identification of the error and its solution
Explain how the model justifies the identified error and how to correct it
Answer:
4 inches
Step-by-step explanation:
Given that :
Amount of Rainfall in October = 14 inches
Amount of Rainfall in October = 3 1/2 times more than Rainfall during September
How much rain fell.during September :
The problem is a division problem ;
Since the amount of Rainfall in October is greater, then obtaining the amount of Rainfall in September requires dividing The amount of Rainfall in October by the number of times it is more than the September rainfall;
If multiplication is applied, then tbe value obtained will be greater than 14 inches. Which makes no sense since, the Rainfall in October is much greater than that in September.
14 inches ÷ 3 1/2
14 ÷ 7/2
14 * 2 / 7
= 28 / 7
= 4 inches
Hence, the amount of Rainfall in September is 4 inches
Answer:
46
Step-by-step explanation:
Find the unit rate (constant of proportionality) of the distance traveled.
Number of hours
0.25 1.5 2.5 3
Distance traveled (km) 3 18 30 36
Answer:
12.
Step-by-step explanation:
if to re-write the given condition, then
\(\frac{3}{0.25} =\frac{18}{1.5} =\frac{30}{2.5} =\frac{36}{3} ;\)
it is clear, the required constant is 12 (12 per hour).
6. Sheila simplified an expression using the following steps. Which property justifies Step 3?
Step 1: 5x + 4(3 + 2x)
Step 2: 5x + 12 + 8x
Step 3: 5x + 8x + 12
Step 4: 13x + 12
O A. Identity Property
O B. Associative Property
O C. Distributive Property
D. Commutative Property
Answer:
answer is Commutative Property
Step-by-step explanation:
Answer:D
Step-by-step explanation:Don't have one
What is the value of m in the figure below? If necessary, round your answer to
the nearest tenth of a unit.
A. 18
B. 13.2
C. 12.5
D. 7
First
\(\\ \sf\longmapsto BD^2=AD\times DC\)
\(\\ \sf\longmapsto BD^2=18^2+7^2\)
\(\\ \sf\longmapsto BD^2=324+49\)
\(\\ \sf\longmapsto BD^2=363\)
\(\\ \sf\longmapsto BD=\sqrt{363}\)
\(\\ \sf\longmapsto BD=19.2\)
Now
Using Pythagorean theorem
\(\\ \sf\longmapsto BD^2+CD^2=m^2\)
\(\\ \sf\longmapsto m^2=7^2+19.2^2\)
\(\\ \sf\longmapsto m^2=49+363\)
\(\\ \sf\longmapsto m^2=412\)
\(\\ \sf\longmapsto m=\sqrt{412}\)
\(\\ \sf\longmapsto m=20.3\)
Nearest value in options is 18
Hence option a is correct
The number of visits to public libraries increased from 1.5 billion in 1991 to 1.7 billion in 1996. Find the average rate of change in the numb
of public library visits from 1991 to 1996.
The average rate of change between 1991 and 1996 was
(Simplify your answer. Type an integer or a decimal.)
Save
billion
The average rate of change between 1991 and 1996 is 40 million
How to determine the average rate of change between 1991 and 1996?The given parameters are:
Population in 1991 = 1.5 billion
Population in 1996 = 1.7 billion
The average rate of change between 1991 and 1996 is calculated as:
Rate = (1.7 billion -1.5 billion)/(1996 - 1991)
Evaluate
Rate = 40 million
Hence, the average rate of change between 1991 and 1996 is 40 million
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consider a stick of length 1. we break it at a point which is chosen randomly and uniformly over its length and keep the piece that contains the left end of the stick. we then repeat the same process on the piece that we were left with. let y be the length of the piece that we are left with after breaking twice. find
The expected length of the piece that we are left with after breaking twice is L/4 and the variance Var(X) is 7L^2/144.
In the given question, consider a stick of length 1.
We break it at a point which is chosen randomly and uniformly over its length and keep the piece that contains the left end of the stick.
We then repeat the same process on the piece that we were left with.
We have to find expected length of the piece that we are left with after breaking twice.
In the same setting as Q7, suppose the length of the piece that we are left with after breaking twice is Y.
We also have to calculate the variance Var(Y).
Following Laws are used in the solution
Law of Iterated Expectations: E[X] = E[ E[X|Y] ]
& Law of total variance: Var(X) = E[Var(X|Y)]+Var(E[X|Y])
Now, Y = Length of the stick after we break it the first time
and X = length of the stick after we break it the second time
As both the distribution is uniformly distributed.
Now, E[Y] = L/2 and Var(Y)= l^2/12
E(x|y)[X|Y=y] = y/2 and Var(x|y)[X|Y=y] = y^2/12
As the expectation of uniform distribution over {a,b} is (b-a)/2 and variance is (b-a)^2/12
Using Law of Iterated Expectations
E[X] = E[ E[X|Y] ]
E[X] = E[ y/2 ]
E[X] = \int_{L}^{0}
E[X] = L/4
Now using Law of Total Variance
Var(X) = E[Var(X|Y)]+Var( E[X|Y] )
Var(X) = E[y^2/12]+Var(y/2)
Var(X) = (1/12)*E[Y^2]+(1/4)*Var(Y)
Var(X) = (1*12)*(Var[Y] + (E[Y])^2) + (1/4)*Var(Y)
Var(X) = (1/12)*(L^2/12+L^2/4) + (1/4)*(L^2/12)
Var(X) = 7L^2/144
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What is the area of the triangle?
11 cm
10 cm height
5 cm
Answer:
10 it's right answer
Step-by-step explanation:
CORRECT ME IF IM WRONG
:)
The coordinates of three vertices of a square abcd are A (-2.5,1.5) B (-2.5,-3) and C (2,1.5) When point D is placed on this square, what willl be the perimeter of the square be? PLEASE HELP ASAP
Answer:
18
Step-by-step explanation:
We know in a square ABCD, AB=CD=BC=AD
so the perimeter of ABCD will be 4AB.
now find the AB:
A(—5/2 , 3/2) so x1=—5/2 , y1=3/2
B(—5/2 , —3) so x2=—5/2 , y2= —3
AB=
\( \sqrt{ {(x1 - x2)}^{2} + {(y1 - y2)}^{2} } = \sqrt{ {(0)}^{2} + {4.5}^{2} } = 4.5\)
Now, AB=4.5 and 4AB=18
The perimeter is 18
Approximate the distance between (-2,-5) and (3, 5) to the nearest tenth.
Answer:
We can use the distance formula to find the distance between two points:
distance = √[(x2 - x1)² + (y2 - y1)²]
Plugging in the coordinates, we get:
distance = √[(3 - (-2))² + (5 - (-5))²]
distance = √[5² + 10²]
distance = √(25 + 100)
distance = √125
distance ≈ 11.2 (rounded to the nearest tenth)
Therefore, the distance between (-2,-5) and (3, 5) is approximately 11.2 units.