Rick took a 20-minute coffee break. at the end of the break, it was 10:00

a. m. what time did rick start his coffee break?

if 150 microliters of a solution and serum contains 90 microliters of saline what is the dilution ratio of a solution

A man looks up at the top of a tree. The angle of elevation is 42°. If the tree is 20 feet tall, which of the following best represents the distance from the base of the tree to where the man is standing? A. 18.6 ft B. 20.4 ft C. 22.2 ft D. 24.6 ft

At 9:00 a. M the outside temperature was - 9 degrees fahrenheit by noon the temperature was - 12 degrees fahrenheit jorge said that it was getting warmer outside. Is he correct? Explain

This type of sampling makes use of geographical blocks or voting districts as a sampling frame in order to cut down a huge population size. Group of answer choices a. Cluster b. Systematic c. Stratified d. Simple

Dwayne used 2 gallons of paint to cover 750 square feet and 5 gallons of paint to cover 1,875 square feet. How many gallons of paint will he need to cover 2,625 square feet?

Let v=6i + 9j, and w = - i - 2j. Find 7w + 6v.

24.5 times 8.76 show work

You drive your car 4.5 hours at an average speed of 70 miles per hour. How far did you go

Rewrite the function by completing the square. g (x) = x2 + 152 + 54

Value of sin 440 degrees?