Solve: 10 sin^2(x) - 3sin(x) - 1 = 0 let u=sin(x)

The given equation is equivalent to which one below?

(2u-1)(5u+1)=0
(10u+1)(u-1)=0
(5u-1)(2u-1)=0

The answer is (2u-1)(5u+1)=0

Step-by-step explanation:

80 the answer is 80

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )