Simplify the complex fraction.
A. 
B. sya
C. 
D. 
Answer: A
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Solve the problem.The orbit of a satellite has a period of T = 1436.8 minutes. Calculate the semimajor axis of the satellite. 
and 
A. 2.751 × 106 km B. 2751 km C. 4.217 × 107 km D. 42,170 km
Solve.The sum of the squares of two numbers is 145 and the difference of their squares is 17. Find the two numbers
A. 8 and 9; 8 and -9; -8 and 9; -8 and -9 B. 8 and 9; 8 and -9 C. 8 and 9 D. 8 and 9; -8 and -9
Solve the problem.You have 68 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.
A. length: 17 feet, width: 17 feet B. length: 34 feet, width: 17 feet C. length: 51 feet, width: 17 feet D. length: 34 feet, width: 34 feet
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. 3x + y + z - 2w = 10 2x + 3y + 3z + w = -52x + y + 4z + 11w = 11
A. {(7, -1, -6, 2)} B. {(6, -4, -2, 1)} C. {(w + 5, 3w - 7, -4w + 2, w)} D. {(2w + 3, 6w - 7, -10w + 8, w)}