5. Which of the following is equivalent to the equation 4x + 7y=z? (2-7y)
A. X = 4z - 28y
B. x=
4
(z + 4.0)
C. y = 7z + 28x
D. y=

Evaluate cos2θ for cosθ = square root of 3/2

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?