Find the following trigonometric values.

Express your answers exactly.

COS (225°) =

sin (225) =

Celia writes the equation d=8t to represent the distance in miles d that bikers could travel in t hours at a speed of 8 hours per hour

A sequence is defined recursively by f (1) = 16 and f (n) = 3f (n-1) + 2. Find f (4)

What is - 9.75 as a fraction

There are 11 bicycles at Matt's house. 5 are in the driveway and the rest are on the lawn. How many bicycles are on the Matt's lawns

A computer monitor is regularly priced at $320. during a two day sale the price was decreased to$240. which of the following is the percentage decrease of the monitors price during the sale?

When planning his crops, Farmer Julie knows that her 25 acres can support oranges and pears. She wants to make $7,500 from her crops. She can make $2,050 per acre of oranges (the variable o) and $2,000 per acre of pears (the variable p).

I need to write the number 36 in expanded form

Seven more than 3 times a number is 31. Find the number

Solve for x: 3 < x + 3 < 6

If the area of a certain desert is three times the area of another desert the sum of their areas is 16,000,000 square miles find the area of each desert