If sin of beta = 4/7, what is cos of beta?

A shopper buys cat food in bags of 3 lbs. Her cat eats 3/4 alb each week. How many weeks does one bag last?

A boat tour guide expects his tour to travel at a rate of x mph on the first leg of the trip. On the return route, the boat travels against the current, decreasing the boat's rate by 10 mph. The group needs to travel an average of at least 24 mph.

An airliner carries 100 passengers and has doors with a height of 76 in. Heights of men are normally distributed with a mean of 69.0 in and a standard deviation of 2.8in. a.

Wendy mixed 5 parts of orange juice and 2 parts of water to make a drink. How many parts of orange juice did Wendy mix with each part of water?

Rob is asked to simplify the expression below. 10x-2 (4x+6y) + 3y He states that the simplified expression is 2x+15y because using the Distributive Property yields 10x-8x+12y+3y, and then combining like terms yields 2x+15y.

Mike performed 139 more community service hours than Natasha. If Mike finished 220 hours of community service, how many hours did Natasha complete? 81 hours 91 hours 181 hours 259 hours

A Dog Sled Driver Added More Gear To The Sled Doubling Its Weight This Felt Too Heavy So The Driver Removed 20 Pounds To Reach The Final Weight Of 180 Pounds Write And Solve An Equation To Find The Sleds Original Weight Describe How You Could Find

If Melissa has a score of 5-4i and Tomas has a score of 3+2i what is their total score

Naoya read a book cover to cover in a single session, at a rate of 555555 pages per hour. After 444 hours, he had 350350350 pages left to read.

Sal ate dinner at his favorite restaurant. Sal knows that the amount of the bill before tax will be $52.60 and that the sales tax is 8%. Sal decides to leave a 20% tip for the waiter based on the pre-tax amount.