Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(4
)(4
)
A. 4y2
B. 16y
C. 16
D. 16y2
Answer: B
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Solve the problem. Round your answer, if appropriate.Water is discharged from a pipeline at a velocity v (in ft/sec) given by 
where p is the pressure (in psi). If the water pressure is changing at a rate of 
find the acceleration (dv/dt) of the water when 
A. 55.8 ft/sec2 B. 2790 ft/sec2 C. 82.1 ft/sec2 D. 164 ft/sec2
Use the coordinates of the indicated points to find the slope of the line.
A. - 
B. -4
C. 4
D. 
Find the area of the triangle by using Heron's formula. Round the answer to the nearest tenth. All sides are measured in inches.a = 8.9, b = 10.5, c = 14.5
A. 49.4 sq in. B. 52.4 sq in. C. 46.4 sq in. D. 55.4 sq in.
A right pyramid has a rectangular base that is 6 ft by 8 ft. If the altitude of the pyramid is 10 feet, find its volume.
A. 80 
B. 160
C. 240
D. 480