True or false?For any data set, the range is equal to twice the interquartile range (the interquartile range is Q3 - Q1 ).
A. True
B. False
Answer: B
Mathematics
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Find the convergence set for the given power series.
A. -8 < x < 8 B. 3 ? x ? 5 C. x < 8 D. 0 ? x ? 8
Mathematics
Use the limit definition of the partial derivative to compute the indicated partial derivative of the function at the specified point.Find 
at the point (10, 1): f(x, y) = 8 - 9xy + 8xy2
What will be an ideal response?
Mathematics
Solve the problem.Mardi received an inheritance of $50,000. She invested part at an APR of 11 percent and deposited the remainder in tax-free bonds at an APR of 10 percent. Her total annual income from the investments was $5,300. Find the amount invested at 11 percent.
A. $44,700 B. $15,000 C. $29,000 D. $30,000
Mathematics
Graph the inequality.y ? 4x 
A. 
B. 
C. 
D. 
Mathematics