Determine whether the function is even, odd, or neither.f(x) = 5x2 + 4
A. Odd
B. Even
C. Neither
Answer: B
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Solve the problem.If 4 is subtracted from a number and this difference is doubled, the result is 5 more than the number. Find the number.
A. 13 B. 4 C. -4 D. -13
Solve the problem.A rectangular swimming pool has a parabolic drain plate at the bottom of the pool. The drain plate is shaped like the region between 
and the line 
from 
to 
The pool is 10 ft by 20 ft and 8 ft deep. If the pool is being filled at a rate of 
alt="" style="vertical-align: -4.0px;" /> what is the force on the drain plate after 5 hours of filling? Round your answer to two decimal places if necessary. A. 208 lb B. 611.52 lb C. 195.52 lb D. 97.76 lb
Evaluate the determinant by inspection.
A. 112 B. 49 C. -112 D. -175
Use the linear approximation (1 + x)k ? 1 + kx, as specified.Find an approximation for the function f(x) = 
for values of x near zero.
A. f(x) ? 1 + 
x
B. f(x) ? - 2 - 
x
C. f(x) ? - 2 + 
x
D. f(x) ? 1 - 
x