Trig: Use a half angle formula to find the exact value of the expression?

cos (5pi/12)

How can you recognize linear change from a graph, an equation, a table, or in a real world situation?

What is the sum of the arithmetic series 18 sigma t-1 (5t-4) ?

What is the 68th term of the sequence 8 6 7 2 5 8 4 4 ...

A bakery has d dozen eggs in one refrigerator and 3 fewer dozen eggs in another refrigerator. Which expressions correctly show how many dozen eggs the bakery has in both refrigerators?

What is the slope and y-intercept of the equation 3 (y - 2) 6 (x 1) - 2 = 0?

You roll a six sided die and pull a card from a standard deck of 52 cards what is the probability that you roll a five and draw a heart

Dimitri earns $4.50 for each box of fruit picked a) how much does he make for picking 20 boxes? b) how much boxes must he pick to earn at least $150? c) if he takes 4 hours to pick 12 boxes what is his hourly rate of pay?

Amanda increased the amount of protein she eats every day from 48 to 54 g. By what percentage did Amanda increase the amount of protein she eats.

Mr. Sanchez's class sold fruit pies for $1.55 each and Mr. Kelly's class sold bottles of fruit juice for $1.40 each. Together, the classes sold 60 items and earned $88.20 for their school. Write and solve a system of equations that model the problem.

Outside temperatures over the course of a day can be modeled as a sinusoidal function. Suppose the high temperature of105°Foccurs at 5PM and the average temperature for the day is85°F. Find the temperature, to the nearest degree, at 9AM.