Solve the system by substitution.

x = -3y + 1
-9x – 10y = -43

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d.x+y=2

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)