Solve.An arch in the shape of the upper half of an ellipse is used to support a bridge spanning a creek 40 feet wide. The center of the arch is 10 feet above the center of the creek. What is the height of the arch at a distance 12 feet from the center of the creek?
A. 3 feet
B. 8 feet
C. 0.8 foot
D. 10 feet
Answer: B
Mathematics
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Solve the initial value problem for x as a function of t.(t2 - 5t + 6) 
= 1 (t > 3), x(4) = 0
A. x = -ln
+ 
+ ln 2
B. x = ln
- ln 
+ ln 2
C. x = -ln
+ ln 
+ ln 2
D. x = -ln
+ ln 
+ 2
Mathematics
Simplify.-
A. Not a real number B. -4 C. -5 D. -8
Mathematics
Simplify. Assume that each variable is nonnegative.2 
- 4 
A. 8 
- 4 
B. 2 
- 4 
C. 24 
D. 0
Mathematics
Determine the coefficient and degree of each term, then find the degree of the polynomial.
m3n2p4 - m6p2 - 
mn3p6
A. 
; Degree of polynomial: 27
B. 
; Degree of polynomial: 9
C. 
; Degree of polynomial: 10
D. 
; Degree of polynomial: 8
Mathematics