An unknown number y is 15 more than an unknown number x. The number y is also x less than 8. The equations to find x and y are shown below. y = x + 15
y = −x + 8

Which of the following statements is a correct step to find x and y?
Answers:
Multiply the equations to eliminate y.

Add the equations to eliminate x.

Write the points where the graphs of the equations intersect the x-axis.

Write the points where the graphs of the equations intersect the y-axis.

Answers

Answer 1

Answer: Add the equations to eliminate x.

y = x + 15
y = −x + 8

2y = 23

y = 11.5

Answer 2

Answer: All right, if I remember correctly... You have to add the equations to eliminate x.

Now, how you do that... let me search my memory for that xDDDD

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Convert 53 grams to kilograms.

530 kg
53,000 kg
0.053 kg
5.3 kg

Answers

0.053 kg would be your answer cause 1 gram is 0.001

There are 1000 grams in a kilo gram so you do 53/1000. That is 0.053 so the answer is c.

A balanced die is rolled 10 times, calculate the probability of rolling a 4 five times

Answers

(1/6)^5 = 1/7776 Cool? Hope this helps

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Answers

If you save 15% to 60% off, you pay 85% to 40% of what you would originally pay. In this case, it's $120. If 1% is $1.20, then your range of savings would be from $13.75 to $45.

Factor -4d^3 + 28d^2 - 4d

Answers

$$\begin{align} -4d^3+28d^2-4d&=(-4d* d^2)+(-4d*-7d)+(-4d* 1)\n&=\boxed{-4d(d^2-7d+1)} \end$

Select the correct answer. Factor the expression. A. (7x − 4)(7x − 4) B. (4x − 7)(4x − 7) C. (7x + 4)(7x − 4) D. (4x + 7)(4x − 7)

Answers

Answer:

C. (7x + 4)(7x − 4)

Step-by-step explanation:

Given expression:

49x² - 16

Using difference of two squares:

A² - B² = (A + B)(A - B)

49x² - 16 = (7x)² - (4)²

= (7x + 4)(7x - 4)

C. (7x + 4)(7x − 4)

Check:

(7x + 4)(7x − 4)

Open parenthesis

= 49x² - 28x + 28x - 16

= 49x² - 16

A pole is 65 feet tall. A support wire isattached to the top of the pole and secured
to the ground 33 feet from the base of the
pole. Find the approximate length of the
wire.
A 32 feet
© 56 feet
0 60 feet
B 73 feet

Answers

Answer:

A) 35 feet

Step-by-step explanation:

If the pole is 65 feet tall

and the wire is attached to the top of it and secured 35 feet from the bottom of it. Then the wire is 65-33=32

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