Which would be the most appropriate way to estimate -6.1(0.22)? Check all that apply. 1)Use rounding to get -6(0.2), and then multiply.
2)Use compatible numbers, such as -6(0.5), and then multiply.
3)Use the benchmark numbers -6 and 1, and then multiply.
4)Use front-end estimation to get -6(0.2), and then multiply.
5)Round the factors to the nearest whole number, and then multiply.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes