Find the sum and choose the correct answer. 2n3 + 4n2 - 7 and -n3 + 8n - 9

A. - n3 - 4 n2 - 8 n - 16
B. n3 + 4 n2 + 8 n + 16
C. 3 n3 + 4 n2 + 8 n - 2
D. n3 + 4 n2 + 8 n - 16

Benito is selecting samples of five values from the table, which row will result in the greatest mean? population data row 1 4 2 2 3 3 row 2 3 3 4 3 2 row 3 2 4 3 4 3 row 4 3 4 4 7 3 row 1 row 2 r

The table shows the number of students who signed up for different after school activities. activity students cooking 9 chess 4 photography 8 robotics 11 select the true statements about the information in the table.

The volume of the a sphere whoes diameter is 18 cm is cubic cm . if it's diameter were reduced by half, it's volume would be of its original volume