Set 5: Trigonometry

Explanation

Answer: C

If $x = 5$ , what is the value of $8x + 3$ ?

✓ Correct

Detailed Explanation

Choice C is correct. 1. Substitute $x = 5$ $8(5) + 3$ $= 40 + 3$ $= 43$ Therefore, $8x + 3 = 43$ when $x = 5$ .

Key Steps:

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Apply the appropriate mathematical formula

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The correct answer is 43

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.

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

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