Solve the following problem in which a radical must be evaluated.If air resistance if ignored, the speed of a dropped object is given by s = 
, where s is the speed in feet per second and d is the distance in feet it has fallen. Approximate the speed of a dropped object after it has fallen 9 feet. Round to the nearest hundredth if necessary.
A. 24 ft/sec
B. 14.7 ft/sec
C. 1.27 ft/sec
D. 192 ft/sec
Answer: A
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Solve.The current in a circuit changes from -6 amperes to 4 amperes. What is the change in current?
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.Which one of the following is a description of the graph of the solution set for the system below?16x2 + 25y2 < 400y < -4
A. Outside the ellipse and below the line B. Outside the ellipse and above the line C. Inside the ellipse and above the line D. Inside the ellipse and below the line
Perform the indicated operations. Express the answer as a single polynomial in standard form.(8y + 11)(4y2 - 2y - 2)
A. 76y2 - 38y - 38 B. 32y3 + 28y2 - 38y - 22 C. 32y3 - 16y2 - 16y + 11 D. 32y3 + 60y2 + 38y + 22
Graph the function.y = sec (2x - 
) + 2 
A. 
B. 
C. 
D. 