Find the focus and directrix of the parabola with the given equation.y2 = 28x
A. Focus: (0, 7), directrix: y = -7
B. Focus: (0, -7), directrix: y = 7
C. Focus: (-7, 0), directrix: x = 7
D. Focus: (7, 0), directrix: x = -7
Answer: D
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Use Chebyshev's theorem to solve the problem.Find the least possible percentage of numbers in a data set lying within 3/2 standard deviations of the mean. Give your answer to the nearest tenth of a percent.
A. 55.6% B. 44.4% C. 66.7% D. 33.3%
Match the shaded region with the set operation.A ? B
A. 
B. 
C. 
D. 
Solve the problem.The city park district is planning on sodding the outfield of the little league baseball field. The distance from home plate to the outer edge of the infield is 70.00 ft. The angle between the outer edge of the first and third baselines is 90°, and the radius of the sector is 260.0 ft. Determine the area of the outfield.
A. 53,090 ft2 B. 48,190 ft2 C. 207,500 ft2 D. 3,037,000 ft2
Provide an appropriate response.The demand function for a manufacturer's product is given by p = 
, where p is the price per unit when q units are demanded.(a) Find the point elasticity of demand when q = 100.(b) For q = 100, is demand elastic, inelastic, or does it have unit elasticity?
What will be an ideal response?