Set 1: Trigonometry

Explanation

Answer: D

Solve for $x$ : $4(x + 1) = 28$

✓ Correct

Detailed Explanation

Choice D is correct. 1. Start: $4(x + 1) = 28$ Divide by 4: $x + 1 = 7$ Subtract 1: $x = 6$ 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:

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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