True or False cos^2x = (1-cos2x) / 2

1. On Tuesday, 12 Kittens at the shelter were adopted and 4 dogs also found new homes. What percentage of the newly adopted pets at the shelter were dogs? 2. Gabe read 10 books over the summer. 4 were nonfiction. The rest were fiction.

A conservation biologist is observing a population of mule deer being affected by an unknown virus. Initially there were 125 individuals but the population is now decreasing by 4% per month.

One lap around the lake is 7/10 mile. Sasha runs 9 laps around the lake

On Saturday a library checked out 52 books. if 24 of the books were fiction what is the ratio of nonfiction books to fiction books checked out

He price of an item has been reduced by 15%. The original price was $35.

A bowl contains 10 red balls, 5 blue balls, and 8 green balls. A woman selects balls at random without looking in the bowl. How many balls must she select to be sure that she has at least one ball of each color

1/2 (4x-10) + 5=x-11 A. 11 B. 6 C. - 11 D. - 6

At last year's company picnic, 25 pounds of ground beef were needed to make 100 hamburgers. How many pounds of ground beef will be needed this year if 120 hamburgers are to be made? A. 30 lb B. 45 lb C. 50 lb D. 55 lb

A triangle is such that the largest angle is 3 times the smallest angle. The third angle is 23 less than the largest angle. Find the measure of each angle.

Which value is in the solution of |x|+9=-2