Set 2: Trigonometry

Explanation

Answer: C

If $x = 4$ , what is the value of $7x + 7$ ?

✓ Correct

Detailed Explanation

Choice C is correct. 1. Substitute $x = 4$ $7(4) + 7$ $= 28 + 7$ $= 35$ Therefore, $7x + 7 = 35$ when $x = 4$ .

Key Steps:

•

Apply the appropriate mathematical formula

•

The correct answer is 35

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