Set 1: Trigonometry

Explanation

Answer: A

Solve for $x$ : $5(x + 10) = 80$

✓ Correct

Detailed Explanation

Choice A is correct. 1. Start: $5(x + 10) = 80$ Divide by 5: $x + 10 = 16$ Subtract 10: $x = 6$ Therefore, $x = 6$ .

Key Steps:

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Apply the appropriate mathematical formula

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The correct answer is 6

Why others are wrong:

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.

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

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