Set 1: Trigonometry

Explanation

Answer: B

If $x = 4$ , what is the value of $2x + 10$ ?

✓ Correct

Detailed Explanation

Choice B is correct. 1. Substitute $x = 4$ $2(4) + 10$ $= 8 + 10$ $= 18$ Therefore, $2x + 10 = 18$ when $x = 4$ .

Key Steps:

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Apply the appropriate mathematical formula

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The correct answer is 18

Why others are wrong:

A: This would give an incorrect result. Choice A 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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