The law of cosines is a2+b2 - 2abcosC = c^2 find the value of 2abcosC ... A. 40 B. - 40 C. 37 D. 20

(The sides are 2,4, and 5; A to B is 2, B to C is 4, and A to C is 5.)

Ten times the sum of half a number and 6 is 9

Daryl wants to purchase a membership to a gym. The cost of the minimum is $5 per week, plus a fixed amount for each time he uses the gym

One Apple cost $0.55 at the grocery store. Customers receive one free apple for every 8 apples that they buy. Anna paid a total of $8.80 for her apples. How many free apples did Anna receive?

Convert m = - 1 and (9,4) to slope intercept form

To cook a steak to medium-rare, it needs to have an internal temperature of 135 ∘degree Fahrenheit. A lower internal temperature will undercook the steak.

What is the square root of 12 plus the square root of 27?

Which statement is true about left parenthesis square root of 3 space space space plus space 5 right parenthesis space5? Answer choices: A. It is rational number because the product of two rational numbers is a rational. B.

What is 35 percent of 80

The larger of two numbers is five more than twice the smaller. The difference is thirteen. Find numbers.

If you flip a fair coin 4 times, what is the probability that you will get exactly 2 tails?