Perform the indicated operation and simplify.
÷ 
A. 
B. z + 5
C. 
D. 
Answer: C
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Solve the given differential equation.(y'' + 25y)(y'' - 2y' - 8y) = 0
A. y = C1e2x + C2e-4x + ex(C3 cos 5x + C4 sin 5x) B. y = C1e-2x + C2e4x + C3 cos 5x + C4 sin 5x C. y = C1e-2x + C2e4x + (C3 + C4 x)e5x D. y = C1e2x + C2e-4x + (C3 + C4 x)e5x
Solve the problem.A surveyor measured the length of a piece of land at 100-ft intervals (x), as shown in the table. Use Simpson's Rule to estimate the area of the piece of land in square feet.
A. 27,000 ft2 B. 23,000 ft2 C. 22,500 ft2 D. 22,000 ft2
Solve the problem.A bridge is built in the shape of a semielliptical arch. It has a span of 104 feet. The height of the arch 28 feet from the center is to be 8 feet. Find the height of the arch at its center.
A. 8.31 feet B. 9.49 feet C. 14.86 feet D. 28.34 feet
Find the radius of a circle if the diameter has the value given.d = 2.4 mi
A. 3.768 mi B. 4.52 mi C. 0.6 mi D. 1.2 mi