Find an equation of an ellipse satisfying the given conditions.Foci at (-4, 0), (4, 0); vertices at (-7, 0), (7, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
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Identify the distribution as symmetric, left-skewed, or right-skewed.Lengths of human pregnancies
A. Left-skewed B. Symmetric C. Right-skewed
Solve the application problem.The public swimming pool, which is a rectangle measuring 
by 
needs a new deck. The deck of uniform width that will surround the pool will be made of concrete. There is only enough money in the budget to cover 
with concrete. How wide should the path be?
A. 8 m B. 12 m C. 10 m D. 6 m
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 = 0
A. Differentiable B. Continuous but not differentiable C. Neither continuous nor differentiable
Solve the problem.A cross-country skier reaches the 12-km mark of a race 40 min after reaching the 
mark. Find the average rate of change in the speed of the skier.
A. 9 km/hour
B. 
km/hour
C. 
km/hour
D. 18 km/hour