Rewrite with only sin x and cos x.

sin 3x - cos x

A) 2 sin x - sin3x - cos x

B) 2 sin x cos2x + sin x - 2 sin3x - cos x

C) 2 sin3x cos4x + 1

D) 3 sin x cos x - sin3x - cos x

What is it called when two ratios have the same value when simplified?

College textbooks are being sold online for $118 each. Using a discount, the price is lowered 20% before a tax of 7.5% is applied to the total. Find the total cost for purchasing two textbooks?

Az+17=-4z-b Solve for Z *this is a linear equation btw

2 (-2x+1/3) + 1/3 (_6x+1)

Make x the subject y=3x-2

Can you guys give me step by step on how to solve this ... ik the answer. "infinitely many solutions" I need the STEPS 5 + x - 12 = x - 7

A company's sales decreased by 8% this year, to $9015. What were their sales last year? (Round your answer to the nearest penny.) My answer was 9,736.2, but the correct answer was 9798.91. Could someone explain how did they get to 9798.91?

Find the difference (2ab+7a+1) - (8ab+9)

Use four 8's to make 8

Terri brought 1.74 meters of rope. Gracie brought 1.64 meters of rope. Who brought more rope