Solve the problem.An arch in the form of a semiellipse is 52 ft wide at the base and has a height of 20 ft. How wide is the arch at a height of 12 ft above the base?
A. 41.6 ft
B. 35.5 ft
C. 20.8 ft
D. 17.7 ft
Answer: A
Mathematics
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Evaluate the work done between point 1 and point 2 for the conservative field F.F = (y + z)i + xj + xk; P1(0, 0, 0), P2(2, 3, 9)
A. W = 24 B. W = 6 C. W = 0 D. W = -12
Mathematics
Use a special product formula to simplify.(6w + 11m)(11m - 6w)
A. 121m2 - 132mw - 36w2 B. 121m2 - 36w2 C. 121m2 + 132mw - 36w2 D. 11m2 - 6w2
Mathematics
Solve the equation.
+ 
+ 4 = 0
A. 
B. {-1, -4}
C. 
D. {1, 4}
Mathematics
Use DeMoivre's Theorem to write the expression in rectangular form.
10
A. 
- 
i
B. - 
- 
i
C. - 
+ 
i
D. 
+ 
i
Mathematics