Show that cos (A+45) = cos45 (cosA-sinA)

There are 6 red marbles, 4 blue marbles, and 6 yellow marbles in a bag. Two marbles are chosen without replacing them in the bag.

Lf g (x) is an odd function, which function must be an even function?

Y varies inversely with x k=2.8 what is the value of x when y is 22.4

Part A: Solve - np - 80 < 60 for n. Show your work. Part B: Solve 2a - 5d = 30 for d. Show your work

Round 1964.15569 to the nearest hundredth, tenth, one, ten, and hundred.

If a bike race covers 120 mi over 6 days and the cyclists ride the same distance each day, how many miles does each cyclist ride each day?

Melissa bought a pencil for $0.34, an eraser for $0.22, and a notebook for $0.98. What is a reasonable estimate for the amount melissa spent?.

Yesterday 50 bakery customers bought muffins and 11 of those customers bought banana muffins. if 100 customers buy muffins tomorrow, how many would you expect to buy a banana muffin?

In a barangay fiesta singing contest with 12 contestants, in how many ways can the judges choose the first 3 winners

John drives 257 miles and uses 9 gallons of gas. How many miles per gallon did he get? A. 100 per gallon B. - 6 per gallon C. 30 kilometers per liter D. 25 miles per gallons