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

Perform a hypothesis test for μ to answer the following question: In the 1950s, a study was completed on the weight of individuals (both men and women) who exercise several times per week. Their average weight was 68 kg.

Galen wrote the statement "If the sum of the digits in a number is divisible by 3, the original number is divisible by 3." Which statements are true regarding his work? Check all that apply.

How many cubes with the side lengths of 1/4 does it take to fill the prism. 1 1/4,2 1/4,3/4

Jill bought a pound of strawberries for $4.00. What is the price, in dollars, per ounce of strawberries? (1lb = 16 oz) Jill will pay $ per ounce of strawberries.

How much money did Shen have to spend from his 4 pay checks

Rob and Lila try to simplify 18 x 4² + (9 - 3) ². Rob simplifies the expression and gets 360. Lila simplifies it and gets 324. Which student is correct? What error did the other student make?

Dave borrowed $500 for one year and paid $50 in interest. The bank charged him a $5 service charge. What is the finance charge on this loan? $5 $50 $55 No answer text provided.

What is the domain and range of F (*) = 2^x+2?

In which of the following situations is there most likely to be correlation without causation?

Jim can buy 4 bags of chips for 7 dollars if he buys 12 bags of chips how much will it cost