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djyliett [7]
3 years ago
8

Please help!! due soon!

Mathematics
1 answer:
Mamont248 [21]3 years ago
6 0

Answer:  D.  (-4, -2)

<u>Step-by-step explanation:</u>

Rotating 180° about the origin means the signs for the x- and y-values are opposite.

(x, y) → (-x, -y)

(4, 2) → (-4, -2)

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Use the substitution method to solve the system of equations choose the correct ordered pair
Gekata [30.6K]

Answer:

C. (4,28)

Step-by-step explanation:

The substitution method requires you to input a specified number in place of a variable. In this case, the variable 'x' should be replaced by the number 4. Using the order of operations, we know that multiplication should be applied before subtraction. When we replace 'x' with 4, we get the equation 'y=8(4)-4'. Multiplying 8 and 4 gives us 32. If we subtract 4 from 32, we get 28. The answer ends up being 'y=28'.

That is the first part of our solution. What we are actually looking for is an ordered pair. We know ordered pairs are written in the form (x, y). First, we need to find the 'x'. The 'x' has been given to us from the beginning, it is 4. Next is the 'y'. This is what we needed to find using substitution. We ultimately concluded that the 'y' is equivalent to 28. Therefore our ordered pair is (4, 28), the letter choice C.

I hope this helped you and that I clearly elaborated on the answer choice.

4 0
3 years ago
I WILL AWARD BRAINLIEST!! PLEASE HELP!!
Sergeeva-Olga [200]

xy \:  = product \\ xn \times 2y = 2nxy \\

the product will increase by 2n

6 0
3 years ago
A number squared increased by 5, is 41
Ksenya-84 [330]

Answer:

n² + 5 = 41          n = 6

Step-by-step explanation:

n² + 5 = 41

n² + 5 - 5 = 41 - 5

n² = 36

What squared equals 36? 6!

6² = 6 * 6 = 36

Check your answer!

6² + 5 = 41

36 + 5 = 41

41 = 41

Have a good night! :)


7 0
3 years ago
Solve for y in the equation -y+9=23
timurjin [86]

Answer:

y=-14

Step-by-step explanation:

-y+9=23

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a

Step-by-step explanation:

a would be 1 and one is less than or equal to 4. none of the others are

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3 years ago
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