Solve the problem using the quadratic formula.Sue rowed her boat across Lake Bend and back in 3 hours. If her rate returning was 2 mph less than the rate going, and if the distance each way was 7 miles, find her rate going.
A. 5.5 mph
B. 5.9 mph
C. 3.7 mph
D. 1.5 mph
Answer: B
You might also like to view...
Solve.A rectangular metal sheet has an area of 150 square centimeters. Four squares with sides 2 cm are cut from the corners of the sheet, and the edges are bent upward to form an open box with a volume of 132 cubic centimeters. Find the dimensions of the box.
A. Length = 15 cm; width = 10 cm; height = 2 cm B. Length = 11 cm; width = 2 cm; height = 6 cm C. Length = 13 cm; width = 8 cm; height = 2 cm D. Length = 11 cm; width = 6 cm; height = 2 cm
Simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Find the regression line for the given data. Round to two decimal places, if necessary.
A. y = 10x - 3 B. y = 9x - 3 C. y = 9.8x - 2.6 D. y = 9.2x - 2.1
Perform the indicated operation and express in lowest terms.
÷ 
A. 
B. 
C. 
D. 