SAT Math Practice Question #34914 - SATify | SATify
#34914
rectangles
area
geometry
hard
90 sec
A rectangular box has a base area B, in square centimeters, given by the expression 3x2+16x+21. If the length of the base is (3x+7) centimeters, and x=5, what is the width of the base in centimeters?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.