Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.Megan Hughes deposits $4900 in an account that pays simple interest. When she withdraws her money 8 months later, she receives $5226.67. What rate of interest did the account pay? Round to the nearest whole percent.
A. 9% per year B. 11% per year C. 10% per year D. 12% per year
Find a power function that models the data in the table. Round to three decimal places if necessary.
A. y = 4.104x0.742 B. y = 5.887x1.155 C. y =0.742x4.104 D. y = 1.935x + 3.53
Determine whether the sequence is arithmetic. If the sequence is arithmetic, determine the first term a and common difference d.4, 12, 36, 108, 972, . . .
A. Arithmetic; a = 4, d = 8 B. Not arithmetic
Find an equation of an ellipse satisfying the given conditions.Vertices: (0, -10) and (0, 10); length of minor axis: 6
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 10