If the mean for a sample of 8 people was 10 and the mean for a second sample of 4 people was 20, what would the weighted mean be equal to?

In triangle VWX, VW = 4.5 inches, WX = 5.9 inches, Measure of angle W = 28 degrees, and Measure of angle X = 47 degrees. If Triangle P Q R is congruent to triangle W V X, which statement is true? QR = 4.5 cm QR = 5.

How do you simplify (abc^2) ^3 (a^2b) ^2

Two sides of a triangle are given as 28 inches and 42 inches. find all possible lengths for the third side of the triangle

What is the value of x in the equation below? - 3 - (-8) - (-2) = x 0 - 13 10 - 9 103 lo7

Completely factor 2x^4-15x^2+10x-3 given one factor of f (x) is x+3

Perform the indicated operation. x^2-y^2/3x*3y/x+y

Tom has 234 marbles. His brother James have 3 times as many marbles as Tom. If they put all their marbles into 9 jars. How many marbles would be there in each jar?

Solve for y 4x-6 x+6y

Cody wants to watch a new movie that is 3 hours long. He has watched 1/6 of the movie so far. What fraction of one hour did Cody spend watching the new movie?

What is the probability of rolling a 5 OR 6 on a number cube marked with 1, 2, 3, 4, 5, and 6 on its faces?