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

If you deposit $300 in an account with a 6% yearly interest rate, how much will be in your account after 2 year?

A plane fly for 450 miles per hour there was a delay for 3 hours how long did it take to get to Missouri? Missouri is 1800 miles away

Two planes intersect into a line always or sometimes

The standard form of the equation of a parabola is y = 1/2 x^2 - 4x + 21 what is the vertex form of the equation?

Which set of dimensions is possible for a rectangular prism with volume 420 cm3? A. 4 cm by 8 cm by 12 cm B. 4 cm by 10 cm by 12 cm C. 5 cm by 7 cm by 12 cm D. 5 cm by 8 cm by 12 cm

Slingerland borrowed $8,000 on july 20, at 11% interest. if the loan was due on october 17, what was the amount of interest on the loan using the exact interest method?

One year the price of wheat was $8.87 the next year the price was $9.60 route is the price per bushel of wheat for each year to the nearest tenth of a dollar

F (x) = 71 (0.93) ^2x growth or decay

A lawn is in the shape of a right triangle with a perimeter of 215 feet. The lengths of the sides of the triangle are each multiplied by 7. What is the perimeter of the new triangle? A. 1505 ft. B. 6100 ft. C. 7120 ft. D. 8640 ft.

Given w (x) = 3x+8, find w (2b+6)