The probability that a student guesses the correct answer to a four-choice multiple-choice question is ​P(correct)=0.25. How many correct answers should a student expect to guess on a test with 72 four-choice multiple-choice​ questions?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

Y=x+2 4x+3y= -36 system of equation