Prove the identity (sina-cosatanb) / (cosa+sinatanb) = tan (a+b)

Find the value of x and y (3y+5) (2x+1) 85

Find the area of a rectangle with a length of 11 cm and a width of 7 cm.

Carmine took out a 28-year loan for $151,000 at an APR of 9.9%, compounded monthly, while Richie took out a 28-year loan for $116,000 at an APR of 9.9%, compounded monthly. Who would save more by paying off his loan 17 years early?

An ostrich can run at a rate of 50 miles in 60 minutes. At the rate, how Long would it take an ostrich to run 5 miles

In order to estimate the average electric usage per month, a sample of n = 81 houses was selected, and the electric usage was determined. (a) Assume a population standard deviation of 450-kilowatt hours. Determine the standard error of the mean.

Which of the following functions would not model exponential decay? August899 August899 10 months ago A. h (x) = 44 (0.89) ^2x B. j (x) = (0.34) ^x-3 C. b (x) = 876 (1) ^x D. z (x) = 7 (0.999) ^4x-2

A roller coaster with a mass of 1000 kg is shot to a speed of 30 m/s in 8 seconds. How much kinetic energy does this coaster have at the end of the 8 seconds? To receive full credit, show all of your work in the space below.

Junior has saved money in his piggybank over the winter. He wants to buy a $30 computer game. If he has 14 one-dollar bills, 16 half dollars, 12 quarters, 8 dimes, 25 nickels, and 10 pennies, how much more does he need to borrow from Dad to buy the

Find the Volume of a cylinder with a base area of 25pi inches squared, and height equal to the radius

A 3 digit number whose ones digit is three times its hundreds digit & whose tens digit is twice its hundred digit. What is the number