How many bit strings of length 10 contain

a. exactly four 1s?

b. at most four 1s?

c. at least four 1s?

d. an equal number of 0s and 1s?

On a particular day, the wind added 5 miles per hour to Jaime's rate when she was rowing with the wind and subtracted 5 miles per hour from her rate on her return trip.

Examine each number. What number can you add to this number to make a number that has a whole-number square root? a) 42 c) 470 b) 101 d) 1000

If I was asked to think of a number and multiply it by 2, I could write this algebraically as 2x. Write the following algebraically, using x as your unknown. "I think of a number, multiply it by itself and then add 6 to the result."

What time is it 15 minutes before 5:30

A cheetah runs at a speed of 49 miles for every hour. If the distance traveled, in miles, is d and time, in hours, is t, which equation shows the relationship between d and t? d = 49 + t t = 49 + d d = 49t t = 49d

Is (0, - 1) a solution of - 10x + 4y > - 4?

A running tab dispense is. 15 gallons of water every second how many pints is dispensed after 20 seconds?

A pest control co sprays insecticide around a building of a 180ft by 180ft. The spray cost $.11 per ft, how much did the job cost

After every ninth visit going to a restaurant you receive a free beverage. After every twelfth visit you recieve a free appetizer.

Evaluate the expression for s = 11 and v = 8. (s - v) 2 A. 113 B. 6 C. 9 D. 57