Set 1: Trigonometry

Explanation

Answer: A

If $x = 10$ , what is the value of $4x + 8$ ?

✓ Correct

Detailed Explanation

Choice A is correct. 1. Substitute $x = 10$ $4(10) + 8$ $= 40 + 8$ $= 48$ Therefore, $4x + 8 = 48$ when $x = 10$ .

Key Steps:

•

Apply the appropriate mathematical formula

•

The correct answer is 48

Why others are wrong:

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.

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