On a multiple choice test with 21 questions, each question has four possible answers, one of which is correct. for students who guess at all answers, find the standard deviation for the number of correct answers

Is 12 a prime or composite number? And why?.

Which is the slope of a line with the coordinates (1,4) and (3,1)

2783 and 7283 the value of 2 in

450 square feet of the field were covered with weeds. Each year, Gloria removes 35% of the weeds. Which equation can be used to model the area covered with weeds, t, in square feet, as a function of the number of years, y, Gloria has owned the field?

Put 2x - 4y = 8 into y = mx + b form

Find the measures of

Which value of x makes this inequality true? X + 9 < 4x

Find the value of f (-8) if:f (x) = 12x-29

How to explain that x/y can result in either a positive or negative quotient

Simplify 2a2b3 (4a2 + 3ab2 - ab) = ? A. 8a4b3 + 6a3b5 + 2a3b4 B. 8a4b3 + 6a3b5 - 2a3b4 C. 8a4b5 + 3a3b5 - 2a3b4 D. 8a4b5 + 3a3b5 + 2a3b4