The sine of a 30 degree angle is equal to the cosine of a 60 degree angle.

true
false

The sentence is True

Step-by-step explanation:

In Geometry, there is a theorem that relation the sine angle and the cosine angle. The theorem says: The sine of any acute angle is equal to the cosine of its complement.

So, let β represent an acute angle

sin (β)=cos(90-β)

Given β=30, let it replace in the formule:

sin (30)=cos(90-30)

sin (30)=cos(60)

Done.

idk

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. : )