If the Lazy River is 7 ft deep, what is the volume of the Lazy River in cubic feet?

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms