Given that sin x = 0.6820 and that x is in quadrant 1, find cos x/2.

2. Barbara's Catering Company makes the best fruit salad despite using only four ingredients. They use four apples for every mango, two pears for every apple, and one pineapple for every mango.

Clara is climbing up a cliff at a rate of about 8 feet per minute. What is her rate in meters per hour? A. about 1574 meters per hour B. about 146 meters per hour C. about 18.3 meters per hour D. about 2.3 meters per hour

What is 481 squared in expanded form?

Red vases cost $4.20 and clear vases cost $5.70. If 25 vases cost $120 how many of each did i get?

The probability that a certain machine will produce a defective item is 0.20. if a random sample of 20 items is taken from the output of this machine, what is the probability that there will be 3 or more defectives in the sample?

Find the mean of the integers 3,-1,0,1,3

What is 80% expressed as a fraction in simplest form

A school debate team has four girls and six boys. A total of four of the team members will be chosen to participate in the district debate. What is the probability that two girls and two boys will be selected?

You have money in an account at 6% interest, compounded monthly. To the nearest year, how long will it take for your money to double.

Theresa went bowling on tuesday night. she bowled scores of 150, 165, and 165. what was her mean average score?