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lutik1710 [3]
4 years ago
12

Find the value of x. Round to the nearest tenth

Mathematics
1 answer:
ra1l [238]4 years ago
7 0

Answer:

16.2

Step-by-step explanation:

A trick to remember for right triangles is SOH-CAH-TOA:

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

Here, we have the side adjacent to the angle and the hypotenuse.  So we should use cosine.

cos 22° = 15 / x

x = 15 / cos 22°

x ≈ 16.2

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5(2^(2x+7)) How do you solve this equation??
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Simplifying
0x + 7 + 5x = 2x + 30 + 40

Anything times zero is zero.
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Combine like terms: 0 + 7 = 7
7 + 5x = 2x + 30 + 40

Reorder the terms:
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7 + 5x = 70 + 2x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

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Combine like terms: 5x + -2x = 3x
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Combine like terms: 2x + -2x = 0
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