Early in the 1900s, an airplane manufacturer was able to increase the time its planes could stay aloft by constantly refining its techniques. Use a graphing utility to determine which exponential equation best models the data. Assume x is the number of years after 1910 and y is the time aloft in hours.
Mathematics
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Match the given equation with one of the graphs.49x2 + 25y2 = 1225
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Mathematics
Find the required inverse and locate on the number line.Find the multiplicative inverse for 5 and graph on the number line. 
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Mathematics
Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution. x + y + z = -8 x - y + 3z = -105x + y + z = -4
A. {(-5, -4, 1)} B. {(-5, 1, -4)} C. {(1, -4, -5)} D. ?
Mathematics
Use an amortization table to solve the problem. Round to the nearest cent.The monthly payments on a $97,000 loan at 13% annual interest are $1072.82. How much of the first monthly payment will go toward the principal?
A. $1050.83 B. $933.35 C. $139.47 D. $21.99
Mathematics