Which of the following equations correctly represnt the law of cosines?

A. b2 = a2 + b2 - 2ab ⋅ cos (C)

B. c2 = a2 + b2 - 2ab ⋅ cos (B)

C. b2 = a2 + c2 - 2ac ⋅ cos (B)

D. a2 = b2 + c2 - 2ac ⋅ cos (A)

700$ principal, earning 5%, compounded monthly after 9 years

Patrick and Brooklyn are making decisions about their bank accounts. Patrick wants to deposit $300 as a principle amount, with an interest of 3% compounded quarterly.

In Geotown, there are 210 teenagers that own a tablet. This is at least 4/5 of all teenagers that live in geotown. What is the maximum number of teenagers who Iive in geotown

Manny is practicing for the swimming competition. the table shows the distance in meters, y, he swims in x number of laps. If Manny continues at the same rate, what is the distance he would have swam after 15 laps?

A cell culture contains 10 thousand cells, and is growing at a rate of r (t) = 12 e 0.17 t thousand cells per hour. find the total cell count after 6 hours. give your answer accurate to at least 2 decimal places.

Dr. Cawood's class is presented with a large bin that contains small plastic beads. The beads in the box are either purple or white. Dr. Cawood states that 25% of the beads are purple but Oliver, a student in Dr.

Lena swam 32 laps at the pool last week. She swam M, T, W,&F and swam an equal amount of laps each day. How many laps did she swim each day?

What is the factored form of 36x4 - 25?

Over which interval is the graph of f (x) = - X2 + 3 8 increasing?

If a hummingbird were to get all of its food from a feeder, then a 16 ounce nectar feeder could feed about 80 hummingbirds a day. how many hummingbirds would you expect to be able to feed with a 12 ounce feeder