Perform the row operation(s) on the given augmented matrix.(a) R2 = -5r1 + r2(b) R3 = -4r1 + r3(c) R3 = 4r2 + r3
A. 
B. 
C. 
D. 
Answer: C
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Multiply. Write the answer in lowest terms and as a whole or mixed number where possible.24 ? 
A. 15
B. 6
C. 18
D. 6
Solve the problem.The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of the car's speed, and inversely as the radius of the curve. If a force of 
is needed to keep an 
car traveling at 20 mph from skidding on a curve of radius 
what force would be required to keep the same car from skidding on a curve of radius 
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Round your answer to the nearest pound of force?
A. 30,857 lb
B. 31,427 lb
C. 30,725 lb
D. 30,889 lb
Use transformations of the graph of y = x4 or y = x5 to graph the function.f(x) = 5x5 
A. 
B. 
C. 
D. 
Perform the indicated operation. Where possible, reduce the answer to its lowest terms.
- 
A. 
B. 
C. 
D. 