A science teacher needs to choose 4 students from a class of 20 to go to the library to do some research. How many different groups can be selected?

A.) 3,060

B.) 104,976

C.) None are correct

D.) 73,440

What is the best really easy strategy for division, so I don't have to write a bunch of stuff down?

Select the mathematical sentence that is true. A. 3 • (7 - 3) + 5 ≤ 6 + 2 • 1 B. 3 • (7 - 3) + 5 6 + 2 • 1 D. 3 • (7 - 3) + 5 = 6 + 2 • 1

Ux is a median of triangle UVW and XV = 4.6, find VW.

F triangle abc is defined by the coordinates a (-4, - 4), b (2, - 2), c (0, 4) is dilated by a scale factor of 1 2, with resulting vertex a' at (-2, - 2). what is the center of the dilation?

When rounded to the nearest thousand, i become 3,000. what numbers can i be

You have 10 liters of juice that is 40% juice and 60% water. You want the mixture to be 70% juice and 30% water. How many liters of pure juice do you need to add to the mixture?

Huilan is 6 years older than Thomas. The sum of their ages is 84. What is Thomas's age?

How can 40x50 be solved using mental math?

To investigate the relationship between amount of sales y (in thousands of dollars) and the amount x (in hundreds of dollars) spent on advertising, a marketing researcher chooses eight cities of approximately equal populations and spends differing

The total number of human genomic characters is 3.5 billion. Express this quantity numerically without using a decimal