Select all of the following that are quadratic equations. 3x 2 + 5x - 7 = 0 x 3 - 2x 2 + 1 = 0 2x - 1 = 0 5x 2 + 15x = 0 6x - 1 = 4x + 7 x 2 - 4x = 4x + 7

A professional singer charged $1000 an hour. Her rate increase by 50% after midnight. If she performs one night from 8:30pm to 1:00am, how much will she be paid?

The davis' backyard measures 40 ft x90 ft. find the area of their backyardand show how the area could be written using exponents.

What is equivalent to (2x 8) (x-9) ?

The velocity in feet per second, V, a skydiver is moving at after falling for t seconds is given by the following function, V=

An airport parking lot charges a basic fee of $2 plus $1 per half-hour parked. What is the total charge from parking in the lot for 72 hours? a. $144 b. $146 c. $74 d. $72

Find the EXACT value of sin (A-B) if sin A = 15/17, cos A = 8/17, sin B = 3/5, and cos B = 4/5. sin (A-B) =

The tuition at a certain college was $18320 last year. if the tuition increased by 5.1% from last year to this year, determine the tuition this year

Which one of the following statements is true? Compare. 98 and. 980 using (,=)

The product of x and y (a) (x) (y) (b) x + y (c) x / y (d) x - y

1. Floyd is an aspiring music artist. He has a record contract that pays him a base rate of $200 a month and an additional $12 each album that he sells. Last month he earned a total of $644.