Which of the following expressions is equivalent to (12x4−4x3+7x+6)+(3x2−4x+14)? A
12x4−x3+3x+20

B
15x6−8x4+21x+6

C
15x6−4x3+3x+20

D
12x4−4x3+3x2+3x+20

Which system of linear inequalities is graphed? can somebody please

Angle mno is s rotated 180 degrees counterclockwise about the origin to form angle m’n’o’. which statement shows the measure of angle m’n’o’?

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.