3. The expression 2x2 + 9 means a. the sum of 2 times a number squared and 9.
b. the product of 2 times a number squared and 9.
c. the sum of 9 and the square of 2 times a number.
d. the sum of 2 and 9 times the square of a number.
e. the product of the square of 2 times a number and 9.

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

Select all the statements that apply to this figure