4

Set 3: Trigonometry

Explanation

Answer: C

If 5x+11=765x + 11 = 76, what is the value of xx?

A.

3

B.

6

C.

13

✓ Correct
D.

23

Detailed Explanation

Choice C is correct. 1. Start: 5x+11=765x + 11 = 76 Subtract 11: 5x=655x = 65 Divide by 5: x=13x = 13 Therefore, x=13x = 13.

Key Steps:

Apply the appropriate mathematical formula

The correct answer is 13

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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