Given A= (8 -3 3 y+2), B= (3x z+4 w 1/2y), C=(x 2z 4 y). What is the value of matrix B of A+B=C

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

Which of the following vectors are orthogonal to (2,1)? check all that apply