The law of cosine is A squared + B squared - 2abcosC. find he value of 2abcosC

Side a is 2. Side b is 4. Side c is 5

A. 37

B. 20

C. 40

D.-40

What is the coefficient of x term in (2x-5) ^3

Sam drives to work. When she averages 20mph it takes 40 minutes. Sam needs yo get to work in 30 minutes. What is the minimum average speed she requires?

Expand the following 3 (x+9)

The price for pears is y = 2.75x. Which line would have the steepest slope if organic apples and pears were added to the graph

Chris is making a poster for Bike Safety Week. The diameter of circle A is 12 in. If the area of circle B is the area of circle A, what is the area of circle B? (Use 3.14 for.)

A fair coin is flipped six times. what is the probability that heads occurs exactly 4 times if it is known that heads occurs at least four times?

2 (x-3) (x-3) - 8 in standard form

What is (-2/5) ^0 and - (6) ^0

The ratio of the volume of two solids is 1331:729. What is the ratio of the surface area

A monarchy has one leader. how many terms do you think a monomial has?