Simplify. Assume that each variable is nonnegative.
? 
A. 21x2
B. 21x
C. 21x
D. 21x
Answer: C
Mathematics
You might also like to view...
Factor.24x2 - 104x - 80
A. 8(3x + 2)(x - 5) B. (24x + 16)(x - 5) C. (3x + 2)(8x - 40) D. 8(3x - 2)(x + 5)
Mathematics
Use the LCD to simplify and solve.
f - 4 = 1
A. {6} B. {-20} C. {20} D. {-6}
Mathematics
Find the missing measurement in the figure. 
a = 0.81 in. b = 1.35 in. c = 5 in.
A. z = 3.38 in. B. z = 2.3 in. C. z = 1.3 in. D. z = 2.84 in.
Mathematics
Solve the problem.The following scatter diagram shows heights (in inches) of children and their ages.Height (inches)
Age (years)What is the expected height range for a 2-year old child?
A. 20-30 inches B. 35-45 inches C. 25-38 inches D. 40-50 inches
Mathematics