Solve the problem.Alex and Juana went on a 50-mile canoe trip with their class. On the first day they traveled 15 miles. What percent of the total distance did they canoe?
A. 30%
B. 300%
C. 0.30%
D. 3%
Answer: A
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Answer as requested.Which of the following best describes our level of confidence in causality when we have discovered a correlation but cannot yet determine whether the correlation implies causality?
A. Absolute certainty B. Cause beyond reasonable doubt C. Probable cause D. Possible cause
The figure shows the graph of a function. At the given value of x, does the function appear to be differentiable, continuous but not differentiable, or neither continuous nor differentiable?x = 1
A. Differentiable B. Continuous but not differentiable C. Neither continuous nor differentiable
Evaluate the given binomial coefficient.
A. 
B. 
C. 953,250
D. 7750
Solve.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 
-4.0px;" /> at 
Round your answer to the nearest pound of force?
A. 31,869 pounds
B. 32,439 pounds
C. 31,737 pounds
D. 31,901 pounds