Choose the expression that represents a quadratic expression.

a. 9x - 2

b. 5x^2 + 9x - 1

c. - 2x^3 + 8x^2 - 7x + 1

d. x^4 - 12x^3 + 8x^2 - 7x + 1

What three m minus 6 plus m with the power of 2 minus 5 m plus 1

An air traffic controller is tracking two planes. To start, Plan A is at an altitude of 2172 feet and Plan B is just taking off. Plan A is gaining altitude at 35.25 feet per second and Plan B is gainnig altitude at 80.5 feet per second.

Find a non-zero, two-by-two matrix such that:

If log75=1.875 then what is the value of log (sub 100) 75?

Which expression is equivalent to 2 (a + 2 b) minus a minus 2 b? 3 a + 2 b 3 a-2 b a-2 b a + 2 b

Find the volume of a sphere that has a diameter of 40km

What is the length of the focal width x=-1/8y^2

Reese read twice as many pages Saturday night than she read Sunday night. If she read a total of 78 pages over the weekend, how many pages did Reese read Sunday night?

What is 7/9 rounded to the nearest 1/2

An expression is shown below. (x^3/4) (x^2/3)