Set 5: Trigonometry

Explanation

Answer: D

Solve for $x$ : $4(x + 8) = 72$

✓ Correct

Detailed Explanation

Choice D is correct. 1. Start: $4(x + 8) = 72$ Divide by 4: $x + 8 = 18$ Subtract 8: $x = 10$ Therefore, $x = 10$ .

Key Steps:

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Apply the appropriate mathematical formula

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The correct answer is 10

Why others are wrong:

A: This would give an incorrect result. Choice A is incorrect and may result from a calculation error.

B: This would give an incorrect result. Choice B is incorrect and may result from a calculation error.

C: This would give an incorrect result. Choice C is incorrect and may result from a calculation error.

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