Use a graphing calculator to find the matrix product and/or sum.Find A + B.A = 
B = 
A. 
B. 
C. 
D. 
Answer: D
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Find the interval of convergence of the series.
A. -11 < x < 11 B. 2 ? x ? 4 C. -5 ? x ? 11 D. x < 11
Convert the fraction to a decimal. If a division does not come out evenly, round the answer to the nearest thousandth.
A. 0.046 B. 4.57 C. 0.457 D. 2.188
Solve the problem.How long will it take for prices in the economy to double at a 4% annual inflation rate? (Round to the nearest year.)
A. 4 yr B. 28 yr C. 21 yr D. 18 yr
Find the equation of the circle that satisfies the following conditions. Express the final equation in the form x2 + y2 + Dx + Ey + F = 0.Tangent to the x axis, a radius of length 3, and abscissa of center is -7
A. x2 + y2 - 14x - 6y + 49 = 0 and x2 + y2 - 14x + 6y + 49 = 0 B. x2 + y2 + 14x - 6y + 49 = 0 C. x2 + y2 + 14x - 6y + 49 = 0 and x2 + y2 + 14x + 6y + 49 = 0 D. x2 + y2 + 14x + 6y + 49 = 0 E. x2 + y2 - 14x + 6y + 49 = 0