Add or subtract and simplify. Write the answer as a whole or mixed number when necessary.9
- 5
A. 3
B. 4
C. 4
D. 4
Answer: D
Mathematics
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Find the zeros of the function.f(x) = 4x2 + 40x + 100
A. -5, 5 B. 0, -5 C. 5 D. -5
Mathematics
Evaluate the integral by making a substitution and then using a table of integrals.
A. 
ln 
+ C
B. 
ln 
+ C
C. 
ln 
+ C
D. 
ln 
+ C
Mathematics
Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 4 sin t, y = 4 cos t; 0 ? t ? 2?
A. y2 - x2 = 16; -? < x < ?
B. y = x2 - 9; -2 ? x ? 2
C. x2 + y2 = 16; -4 ? x ? 4
D. y = 
= 16; -? < x < ?
Mathematics
Simplify.(64 - 20) ? [(80 + 15 ÷ 5) - (7 ? 7 - 1 ? 1)]
A. 1597 B. 1540 C. 1504 D. 1640
Mathematics