3

Set 1: Trigonometry

Explanation

Answer: D

If x=6x = 6, what is the value of 5x+85x + 8?

A.

28

B.

19

C.

48

D.

38

✓ Correct

Detailed Explanation

Choice D is correct. 1. Substitute x=6x = 6 5(6)+85(6) + 8 =30+8= 30 + 8 =38= 38 Therefore, 5x+8=385x + 8 = 38 when x=6x = 6.

Key Steps:

Apply the appropriate mathematical formula

The correct answer is 38

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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