Set 4: Trigonometry

Explanation

Answer: C

If $6x + 18 = 90$ , what is the value of $x$ ?

✓ Correct

Detailed Explanation

Choice C is correct. 1. Start: $6x + 18 = 90$ Subtract 18: $6x = 72$ Divide by 6: $x = 12$ Therefore, $x = 12$ .

Key Steps:

•

Apply the appropriate mathematical formula

•

The correct answer is 12

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.

Master all sections for your best SAT score