The length, width, and height of a rectangular box are represented by 4x, x+4, and 3x-2, respectively. when the volume is expressed as a polynomial in standard form, what is the coefficient of the 2nd term?

In the volume expression , coefficient of second term is 40

Step-by-step explanation:

Given,

Length = 4x

Width = x+4

Height = 3x-2

Volume of rectangular box = Length * Width * Height

i.e  V = 4x * (x+4) * (3x-2)

V = 12x^3 + 40x^2 -32x

Here second term is 40x^2  and its coefficient is 40.

answer: it's d

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.