Show that cos2x + 1 = 2cos2 x. Use the "^" key on the keyboard to indicate an exponent. For example, sin2 x would be typed as sin^2x.

What are the least common multiples of 24 and 36

Cindy dissolves 19 1 / 4 grams of drink mix in 1 3 / 4 ounces of water. What is the unit rate in grams of drink mix per ounce of water? A) 11 B) 15 4/5 C) 17 1/2 D) 21

Approximately how much principal would need to be placed into an account earning 3.575% interest compounded quarterly so that it has an accumulated value of $68,000 at the end of 30 years

How to round 47,125 to the nearest ten, to the nearest hundred, to the nearest thousand and to the nearest ten thousand

5x-8x-11 = - 3x+7-11 Is there a solution

Will Make Branliest The distance from Earth to Neptune is approximately 4.3514*10^12 meters. Select from the drop-down menu to correctly complete the statement. The distance from Earth to Neptune is approximately 4.3514 * 10^9.

How many times can 23 go into 60

The number of players of an online game triples each week. The function f (x) = 3x represents the number of players in week x. When are there 81 players? A. Week 27 B. Week 9 C. Week 3 D. Week 4

Write the fraction 5/6 as a decimal

Two shops, Tesco and Asda, sell the same brand of baked beans with the following deals. Calculate the price per item for each shop. Write the shop which is the best value for money in the comment box. Tesco = 2 for £1.14 Asda=5 for £2.80