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2 years ago

Can someone please help meeeee

Mathematics

1 answer:

kozerog [31]2 years ago

3 0

Answer:

45°

Step-by-step explanation:

The angle with measure of 9x and the angle with measure of 3x are supplementary

9x + 3x = 180°

12x = 180 divide both sides by 12

x = 15

The angle with measure of 9x and angle a are supplementary as well

9x + a = 180

9×15 + a = 180

135 + a = 180 subtract 135 ftom both sides

a = 45°

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Answer:

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Step-by-step explanation:

We are given problem (-5) - (-1 3/4).

Mariah started the problem as (-5) + 1 - 3/4

Shane started the problem as (-5) + 1 + 3/4

We need to find who started the problem correctly.

The problem should be started by converting the mixed fraction into improper fraction i,e

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Now we will solve bracket by multiplying -1 with term inside the bracket i.e

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Let's compare both the procedures now:

Mariah:

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Therefore, Mariah did not start the problem correctly.

Shane:

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$= \frac{-13}{4}$

Therefore, Shane started the problem correctly.

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Step-by-step explanation:

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