Which expression is equivalent to cos (4x) + cos (2x)

If (2x - 4) (3x + 2) = 0, what are all possible values of x? Select one: A. 0 only B. - 23 only C. 0 and 2 only D. - 23 and 2 only

How many pairs of parallel planes does a cereal box have?

Solve the following equation for y: 4x - 2y = 10 A: y=2x-5 B: - 5 C: y=-2x+5 D: - 2y=10-4x

He water from a sprinkler follows the path of the equation h (x) = - 0.28 (x-3.09) ^2 + 3.27 What is the maximum height the water will reach in feet?

If the length of side a is 16 centimeters, the length of side b is 10 centimeters, and m = 42°, what is the measure of? Round your answer to two decimal places.

Using the "map scale", imagine you are hiking and using a map with a scale of 1:24,000. if you plan out a route, measure it and find that it is 10 inches total on the map, what is the actual distance you will walk on that route

What do the details in this passage state implicitly? People knew that Clemente did not board the plane. People had hopes that Clemente survived the crash. People saw Clemente clinging to a rock.

bryan sells gadgets at a price of $7 apiece. His average cost is $5 per gadget. On Monday, bryan sold 10 gadgets; on Tuseday, he sold 7 gadgets; on Wednesday, he sold 9 gadgets; on thursday, he sold 11 gadgets and on friday, he sold 13 gadgets. 5.

an item that cost $50 is marked 20% off sale tax for the item is 8% what is the final price including tax. solve the problem with the discount applied before the sales tax

What is 11<2a+3 less than equal to 19 in compound inequality