Solve the problem.Bob and Fred play the following game. Bob rolls a single die. If an even number results, Bob must pay Fred the number of dollars indicated by the number rolled. On the other hand, if an odd number is rolled, Fred must pay Bob the number of dollars indicated by the number rolled. Find Fred's expectation.
A. $0.25
B. $0.50
C. $0.00
D. -$0.10
Answer: B
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Find the equation of the ellipse satisfying the given conditions. The center is at the origin.Vertex (0, -10), focus (0, 8)
A. 100x2 + 36y2 = 6500 B. 100x2 + 36y2 = 3600 C. 100x2 + 36y2 = 10,064 D. 100x2 + 36y2 = 10,100
Solve the problem.A landscaping company sells 40-pound bags of top soil. The actual weight x of a bag, however, may differ from the advertised weight by as much as 0.75 pound. Write an inequality involving absolute value that expresses the relationship between the actual weight x of a bag and 40 pounds. Over what range may the weight of a 40-pound bag of to soil vary?
What will be an ideal response?
Provide an appropriate response.Select a decimal percent with two digits and write it as a fraction. Select a fraction with a three-digit denominator and write it as a percent. Explain each step of your work.
What will be an ideal response?
Solve the problem. Round amounts to the nearest tenth if necessary.Suppose that z varies jointly with x and y and that z = 1080 when x = 9 and 
Find the constant of variation k. Then use z = kxy to find z when x = 3 and 
A. k = 155,520; z = 5184 B. k = 7.8; z = 234 C. k = 7.3; z = 219 D. k = 7.5; z = 225