Verify

cos^4x-sin^4x=cos2x

How to graph linear inequality

Solve using two different strategies. 1.) 6x27 4.) 132-89 2.) 7x32 5.) 370-193 3.) 7x45 6.) 453-189

An airplane pilot sights a life raft at a 26° angle of depression. The airplane's altitude is 3 km. What is the airplane's surface distance d from the raft? Round your answer to the nearest whole number. A 5 Km B 6 Km C 4 km D 3 Km

The sum of two consecutive even integers divide by four is 189.5

Given the function: f (x) = (3x+4) - (2-x) evaluate for (f) = 5

Stan bought fishing poles for $75. He wants to mark the price up by 20%. What will the new price of the fishing poles will be

Nine less than twice a number is thirtyone. what is the answer

How to simplify 333/1000

On a map, 1 inch equals 10 miles. If two cities are 5 inches apart on the map, how far are they actually apart?

a man used $3 to pay for 16 postage stamps. x of them are 15 cents each and the rest are 20 cents each. a) Write down an equation in terms of x and find the value of x. b) is the man supposed to receive and change? If so, find the amount