Provide an appropriate response.Find y'' for y = x4 - 8x1/2
A. 4x3 - 
B. 12x2 + 
C. 4x3 + 
D. 12x2 - 
Answer: B
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Solve the problem.Find the side length of a square with the same perimeter as a circle with radius 8 in. Use 3.14 for 
A. 6.28 in. B. 7.09 in. C. 12.56 in. D. 25.12 in.
Solve the problem.It is necessary to have a 40% antifreeze solution in the radiator of a certain car. The radiator now has 70 liters of 20% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength?
A. 28 L B. 23.3 L C. 17.5 L D. 35 L
Solve the problem.A railroad bridge is built over a V-shaped canyon. If the supports are 4 feet long at each end, the center support is 278 feet long, and the supports increase in length by 2 feet with each support (from 4 feet to 278 feet), what is the total length of all the supports?
A. 38,640 feet B. 38,636 feet C. 38,634 feet D. 38,638 feet
Find the measure of the angle.
?XZY
A. 35° B. 90° C. 30° D. 25°