Find the mean of the set of data. Round to the nearest tenth.3, 11, 4, 3, 3, 4, 4, 4, 4, 11, 4, 11, 4
A. 5.3
B. 6.4
C. 5.4
D. 4.9
Answer: C
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Graph the quadratic equation: -4x²+8x-3
Solve the problem.Looking ahead to retirement, you sign up for automatic savings in a fixed-income 401K plan that pays 6.5% per year compounded annually. You plan to invest $2000 at the end of each year for the next 20 years. How much will your account have in it at the end of 20 years? Round to the nearest dollar.
A. $77,651 B. $78,949 C. $76,108 D. $79,421
Find the second-order partial derivative.Find 
when z = exln ?y?.
A. 
B. - 
C. 
D. - 
Solve the problem.A rectangular Persian carpet has a perimeter of 164 inches. The length of the carpet is 18 in. more than the width. What are the dimensions of the carpet?
A. Width: 73 in.; length: 91 in. B. Width: 64 in.; length: 82 in. C. Width: 32 in.; length: 50 in. D. Width: 50 in.; length: 68 in.