How many real roots does the quadratic function f (x) = - 5x^2 have?

a. 0

b. 1

c. 2

d. infinitely many

Kedar earns a monthly salary if $2,200 plus a 3.75% commission on the amount of his sales at a men's clothing store. What would he earn this month if he sold $4,500 in clothing? Round to the nearest cent.

How many tens are in four hundred thirty

Identify the vertical asymptotes of f (x) = 10 over quantity x squared minus 7x minus 30.

What is the solution tot his system of linear equations 2x + 3y = 3 7x - 3y = 24

Siera has 11.5 yards of yarn. she uses a certain amount for a project, leaving 5.25 yards of yarn. The equation 11.5 - x = 5.25 represents the situation, where x is the amount of yarn Siera used for her project.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.