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. 20.8 ft
B. 35.5 ft
C. 17.7 ft
D. 41.6 ft
Answer: D
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Find the indicated derivative for the given vector-valued function .Find Dtr(t) for r(t) = (4t4 + 5t3 - 1)i + 7k.
A. Dtr(t) = (16t3 + 15t2)k B. Dtr(t) = (16t3 + 15t2)i + k C. Dtr(t) = (16t3 + 15t2)i D. Dtr(t) = (4t3 + 3t2 - 7)i + k
Provide an appropriate response.Which function has no horizontal asymptote? Why? a. f(x) = 
b. f(x) = 
c. f(x) = 
d. f(x)
= 
A. d. The numerator is never equal to 0.
B. b. The degree of the numerator is greater than the degree of the denominator.
C. c. The degree of the numerator is less than the degree of the denominator.
D. a. The degree of the numerator is equal to the degree of the denominator.
Fill in the blank with one of the words or phrases listed below.
An algebraic expression is 
when all like terms have been 
.
A. combined, simplified B. simplified, combined C. variable, simplified D. variable, combined
Graph the ellipse.
+ 
= 1
A. 
B. 
C. 
D. 