If sin 20 degree=a and cos20 degree=b then which of the following represents the correct value of sin 70 degree in terms of a and/or b?

1) a+b

2) a

3) b

4) a-b

5.) There are 40 more dogs than cats at the animal shelter. The ratio of dogs to cats is 5:1. How many dogs are at the animal shelter.

F (x) = - 0.08x (x2-11x + 18)

Sarah has 18 postcards in her postcard collection. She decides that from now on, every time she goes on vacation she will buy 5 postcards to add to her collection.

Which fraction is equivalent to 4 8 ?

What number is 50% of 40

If a patient needs a 30-day supply of tablets four times a day, how many tablets will the patient need for discharge?

How to solve this problem 5 (x+4) =

Y and x intercept of - 5+9y=-18

The Great Pyramid of Giza is a square pyramid located by El Giza, Egypt. The height of the pyramid is currently 455.4 feet. The base is a square with side length of 755.9 feet. Find the volume of the Great Pyramid of Giza. Explain your reasoning.

What is the perimiter, in feet, of a square whose area is 121 square feet