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emmasim [6.3K]
3 years ago
14

What are the intercepts of y = 4x - 2?

Mathematics
1 answer:
aleksandrvk [35]3 years ago
7 0

Answer:

(1/2, 0)

Step-by-step explanation:

To find the y-intercept, set x = 0 and find y:  y = 4(0) - 2 = -2, so that we have the point (0, -2).

To find the x-intercept, set y = 0 and find x:  0 = 4x - 2, or x = 1/2, so that we have the point (1/2, 0).  This corresponds to the first answer choice.

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In triangle ABC, a = 9, c = 5, and angle B = 120°. Find the measure of angle A to the nearest degree. Show your work.
slamgirl [31]

<u>Answer:</u>

Angle A = 39°

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

We are given that there is a triangle ABC where a = 9, c = 5 and angle B = 120° and we are to find the measure of angle A.

But first we need to find the side b using the law of cosine:

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Now finding angle A using law of cosine:

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Therefore, the measure of angle A = 39°.

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