Find derivative of 2cosx+2cos2x

Gail took part in a quiz show and won half a million pounds she spends 120000 pounds on a sports car. Then spends half of the money left on a apartment. How much was gails apartment?

Explain how you find the number of ounces in 0.25T

What percent of 56 is 42

How many solutions does this equation have? 6x - 6 / 3 = 2x - 2 A) no solution B) exactly one solution C) exactly two solutions D) infinitely many solutions

Farmer jim keeps 12 hens in every coop. if farmer jim has 20 coops, how many hens does he have in all?

20 % of 2 is equal to A. 20 B. 4 C. 0.4 D. 0.04

A medical study showed that girls under sixteen who are treated for Hodgkin's disease face an exceptionally high risk of developing a second type of cancer later in life (New York Times, 3/21/96).

The diameter of a circle is 8 inches The perimeter and area are

Find the quadratic function that has roots of - 9 and 3 and a vertex of (-3,-36)

Trayvonn had 60 followers on instagram last week. now he has 12. what is the percent change?