Find x3 − 2y2 − 3x3 + z4 if x = 3, y = 5, and z = −3.

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.