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evablogger [386]
2 years ago
12

Angles A and B are complementary. If cos A = 7x − 9 and sin B = 4x + 15, what is the value of x?

Mathematics
1 answer:
Karo-lina-s [1.5K]2 years ago
5 0

The value of x according to the described angles is; 8

<h3>Complementary angles</h3>

If two angles A and B are complementary, it follows that A + B = 90 and Cos A = Sin B.

From the statement above, it follows that;

  • 4x + 15 = 7x -9

Collect like terms;

  • 15 +9 = 7x - 4x

  • 3x = 24

Divide both sides by 3;

x = 24/3 = 8.

Read more on complementary angles;

brainly.com/question/16281260

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Answer:

1 hr 35 min

Step-by-step explanation:

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2 years ago
Solve for v.<br> -8v+3(v-3) = 16
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Answer:

\huge\boxed{v = -5}

-8v + 3(v - 3) = 16

Distribute the 3:

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Combine like terms and simplify:

-5v - 9 = 16

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Divide both sides by -5:

-5v/(-5) = 25/(-5)

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Suppose that F(x) = x^3 and G(X) = -3x^3. Which statement best compares the
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Answer:

D. The graph of G(x) is the graph of F(x) flipped over the y-axis and

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Step-by-step explanation:

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2 years ago
5x + 10 &gt; 35<br> How do you work this out?
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Answer:

x > 5

Step-by -step explanation:

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