Choose the correct simplification of the expression −6x^2(4x − 7x^2 − 2)
a. 42x4 + 24x3 − 12x2
b. −42x4 + 24x3 − 12x2
c. −13x4 − 2x3 − 8x2
d. 42x4 − 24x3 + 12x2
i'm thinking it's b but not sure.

D.

Step-by-step explanation:

We are given that an expression

We have to choose the correct simplification of the given expression.

Multiply each term of bracket with [txe[-6x^2[/tex]

Hence, the simplification of the given expression is given by

D.

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.