Find the volume of the sphere. Use 3.14 for ?.
A. 113.04 ft3
B. 7.948 ft3
C. 9.42 ft3
D. 14.13 ft3
Answer: D
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Express the product as a sum or difference.sin 
cos 
A. 
sin (cos 5x)
B. 
(sin3x - sin 2x)
C. 
(cos 6x - sin 4x)
D. 
(cos 3x + sin 2x)
Solve the problem.Joan can mow a 3-acre field in 4 hours. How long would it take her to mow a 2.6-acre field? Round to the nearest tenth.
A. 0.9 hr B. 6.5 hr C. 3.5 hr D. 5.5 hr
Evaluate the radical expressions or indicate that the root is not a real number.
A. 
B. 2
C. 16
D. Not a real number
Solve.A basketball fieldhouse seats 15,000. Courtside seats sell for $8, endzone for $6, and balcony for $4. The total revenue from a sell-out is $76,000. If half the courtside and balcony seats and all the endzone seats are sold, the total revenue is $44,000. How many of each type are there?
A. 3000 courtside; 2000 endzone; 10,000 balcony B. 3200 courtside; 1800 endzone; 10,000 balcony C. 3000 courtside; 3000 endzone; 8,000 balcony D. 4000 courtside; 3000 endzone; 8000 balcony