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7nadin3 [17]
3 years ago
8

1. - x + 5y =-23 4x – y=16​

Mathematics
1 answer:
Tpy6a [65]3 years ago
4 0

Answer:

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:(4,0)

Equation form:x=4  ,  y=0

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The correct answer is D.
8 0
3 years ago
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VladimirAG [237]

Answer:

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6 0
4 years ago
Which of the following expressions represents "the sum of n and the sum of 8 and 6"?
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Answer:

n + (8 + 6)

Step-by-step explanation:

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6 0
3 years ago
An architect designs a porch support that forms a 42.58 angle with the roof. What is the measure of the angle’s complement? What
antoniya [11.8K]

Measure of the angle’s complement is 47.42 degree and measure of the angle’s supplement is 137.42 degree

<em><u>Solution:</u></em>

Given that architect designs a porch support that forms a 42.58 angle with the roof.

To find: measure of the angle’s complement and measure of its supplement

<em><u>Finding measure of the angle’s complement:</u></em>

Two angles are Complementary when they add up to 90 degrees

To determine the complement, subtract the given angle from 90

measure of the angle’s complement = 90 - 42.58 = 47.42

<em><u>Finding measure of the angle’s supplement:</u></em>

Two angles are supplementary when they add up to 180 degrees

To determine the supplement, subtract the given angle from 180

measure of the angle’s supplement = 180 - 42.58 = 137.42

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Step-by-step explanation:

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