K (a) = 2a^2-a; find k (-3)

Will a stand that can hold up to 40 pounds support a 21-kilogram television? explain.

A barrel shaped like a cylinder is laid on its side and rolled up a ramp that is 92m long. The barrel has a circular base that turns 46 times in being rolled up the ramp. What is the diameter of the circular base?

Pennsylvania has a land area of 44,816 square miles. What is the land area of Pennsylvania rounded to the nearest hundred? How do you know?

500 seats are at the theater. 3/4 of them are filled. How many seats are filled?

Explain why there is no solution to the inequality |x - 2| < - 2.

Find the LCM of 3 and 4.

Masurile a doua unghiuri complementare sunt invers proportionale cu nr 0,25 si 0,1 (6). calculate masurile celor doua unghiuri

Two baseball teams, the Jayhawks and the Falcons, each recorded the number of home runs hit in 1 season by every player on the team. Each team then calculated the mean number of home runs and the MAD (mean absolute deviation).

What is the area of a circle with circumference of 12π?

Function f (x) = ax^{3} + bx - 1, where a and b are constants. In addition, f (2) = 3. Find the value of f (-2).