How is a²-4a-21 expressed in factored form?

(x-1) (x+21)

(x-21) (x+1)

(a-7) (a+3)

(a-3) (a+7)

Initially it will contain 350 gallons water. A hose is placed in the pool and the water is turned on. The hose at 5.2 gallons of water per minute. Model the total amount, V, of water in the pool for X, the number of minutes the hose has been on. a.

Which of the following would be the correct form of the equation 10t² - 29t = - 10 to be able to solve using the zero product property?

An angle 119 degree is bisected. What is the measure of each resulting angle?

Jamie has $37 in his bank account on sunday. the table shows his account activity for the next four days. what was the balance in jamie account after his deposit on thrusday

Marr you may $64.75 selling ice cream if each ice cream cost $1.75 how many ice cream's did he sell?

A square lawn has an area of 225 square yards. What is the length of each side?

True or False 68oz < 4lb 6oz

Which statement belongs in the intersection of the Venn Diagram? A venn diagram is shown with one circle labeled perimeter and the other labeled area.

Does the equatoin 2x+6y=35 have any whole number solutions? Why or why not?

Greg went to the walmart to buy pencils and pens. each pencils costs $2 and each pen costs $3. he bought five items. he spent $12. how many pens and pencils did he buy?