Solve this equation 2cos^2x-9cosx-5=0

Calcul Find the area of a circle with a diameter of 16. Either enter an exact answer in terms of soruse 3.14 for and enter your answer as a decimal

A typist can type 45 words per minute. How many minutes will it take him the type a 2500 word report?

If you need ½ cup of sugar and 3 cups of flour to make a recipe, how much flour would you need if you used 2 cup of sugar?

Martha has made 40 cakes for the summer fayre. The proportion of cherries is 2/5, the proportion of currants is 1/10 and the proportion of raisins are 5/10. How many of each of the following does she need Raisins? Cherries? Currants?

In the fact family for the numbers 5, 6, 30, which term does not describe 5 or 6.

What are factors of 30 48 8 12 6 18

the hockey team has been great! in 2008, they won 20% more games than in 2007 in 2009 they won 50% more games than in 2008 what was their overall percentage increase from 2007 through2008?

What is the Hcf of 10 and 15

The name of the triangle whose angles are all obtuse.

Kendall has 37 inches of yarn to create an outline of the Big Dipper for her science project. Which equation could be used to find out how many inches of yarn will be left when she has finished the project?