MATHEMATICS HIGH SCHOOL

Which function has a graph with a y-intercept of -4?A. 2x – 4y = 8
B. 2x – 8y = -4
C. 4x – 2y = -8
D. 4x - 2y = 8

Answers

Answer 1
Answer: the correct answer would be D. if you rearrange the equation, and cross out common factors, it equals -4
Answer 2
Answer:

Answer:

D

slope is 2 and y-intercept is (0, -4)

Step-by-step explanation:

4x-2y= 8  move variable x to the right (change signs)

- 2y= -8 + 4x   Divide both sides by 2

y= -4 + 2x        reorder terms using communitive property

y = 2x  -4

y= mx + b

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A) show that $n(2n + 1)(7n + 1)$ is divisible by 6 for all integers $n$.b.find all integers $n$ such that $n(2n + 1)(7n + 1)$ is divisible by 12.

Answers

Hi,

A)
(n(2n+1)(7n+1))/(6) \n= (14n^3+9n^2+n)/(6) \n= (12n^3+6n^2)/(6) + (2n^3+3n^2+n)/(6) \n=2n^3+n^2+ (n(2n^2+3n+1))/(6) \n= 2n^3+n^2+ (n(n+1)(2n+1))/(6) \n= 2n^3+n^2+ 1^2+2^2+3^2+...+n^2\ is\ an\ integer.

B)
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What’s 34 percent of 240? A. 81.6 B. 81 C. 90.6 D. 80

Answers

34 percent of 240 is 81.6
Hello!

To convert a percent to a decimal you divide by 100.

34%/100=0.34

Now we multiply 0.34 by 240.

0.34·240=81.6

Therefore, our answer is A. 81.6

I hope this helps!

Marie spends 14 dollars on lottery tickets every week and spends $128 per month on food. On an annual basis, the money spent on lottery tickets is what % of the money spent to buy foid

Answers

The money spend on lottery tickets is 40%

Kay builds a 1/6 scale model of a train. The actual train is 42 1/2 feet long. How long is the model

Answers

 7 1/12 feet long..
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9/11= ?/22 need help please

Answers

9/11 equals 18/22 because when u r doing this 11 times 2 equals twent two and nine times two equals eighteen therefore the answer is 18/22.
9/11=x/22
times 22 both sides
(9*2)/1=(22x)/22
18=x
x=18

No work needed, just the answer

Answers

Answer: 1 should be the answer

1Step-by-step explanation:
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