Find the average.66 hours, 65 hours, 58 hours
A. 63 hours
B. 64 hours
C. 189 hours
D. 190 hours
Answer: A
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Solve the problem.A 23-inch piece of string is cut into two pieces. One piece is used to form a circle and the other to form a square. How should the string be cut so that the sum of the areas is a minimum? Round to the nearest tenth, if necessary.
A. Circle piece = 12.9 in., square piece = 10.1 in. B. Square piece = 0 in., circle piece = 23 in. C. Square piece = 12.9 in., circle piece = 10.1 in. D. Square piece = 5.8 in., circle piece = 5.3 in.
The cumulative number of flu cases reported by t days after an epidemic began is given by
?
.
?
A. Use functional notation to indicate the initial number of flu cases.B. Calculate the value you found in part A.C. How many new cases were reported from day 20 to day 40? Round your final answer to the nearest whole number.
What will be an ideal response?
Simplify the expression.(-r2s)2( -r3s4)5
A. r19s22 B. -r-11s22 C. -r247s1026 D. -r19s22
Multiply. Express the product in lowest terms.
? 
A. 
B. 
C. 
D. 