Sketch the graph of the parametric equations. Then set up the appropriate integral to find the length of the curve and use a computer to evaluate it.x = 5 sin t, y = 5 cos t, 0 ? t ? 2?
A. L = 26?
B. L = 26?
C. L = 10?
D. L = 2?
Answer: C
Mathematics
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Solve the system by the substitution method.x + y = 5y = x2 - 6x + 9
A. {(-4, 9), (-1, 6)} B. {(4, 9), (1, 4)} C. {(4, 1), (1, 4)} D. {(3, 2)}
Mathematics
Solve by completing the square.3x2 - 2x - 4 = 0
A. x = -4, x = 
B. x = 
C. x = 
D. x = 
Mathematics
Solve.A four-sided garden plot has an irregular shape. The second side is 13 feet longer than the first. The third side is 26 feet longer than the second. The fourth side is 39 feet longer than the third. If the perimeter of the plot measures 150 feet, what is the length of the longest side?
A. 78 feet B. 57 feet C. 31 feet D. 83 feet
Mathematics
Evaluate the determinant.
A. -11 B. 1 C. 11 D. -1
Mathematics