Add or subtract. Simplify your answer to lowest terms.
+ 
- 
A. x2 + 1
B. x2
C. x2 + x - 8
D. x3 - 8x2
Answer: A
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Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse with vertices (±6, 0) and foci at (±5, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Use the definition to find an expression for the instantaneous acceleration of an object moving with rectilinear motion according to the given function. The instantaneous acceleration is defined as the instantaneous rate of change of the velocity with respect to time. s = 4t2 + 5t - 2[s is the displacement. Find v, then find a]
A. 4 B. 8t + 5 C. 8 D. 0
Solve the problem.An airplane is flying in the direction 31° east of south at 873 km/hr. Find the component form of the velocity of the airplane, assuming that the positive x-axis represents due east and the positive y-axis represents due north.
A. 
B. 
C. 
D. 
Perform the indicated operations. Express the answer as a single polynomial in standard form.(x - 11)(x2 + 2x - 7)
A. x3 - 9x2 - 15x - 77 B. x3 - 9x2 - 29x + 77 C. x3 + 13x2 + 15x - 77 D. x3 + 13x2 + 29x + 77