Find all complex solutions.x4 - 5x2 - 36 = 0
A. ±2, ±3i
B. ±3i, ±2i
C. ±3, ±2
D. ±3, ±2i
Answer: D
Mathematics
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Determine whether the first literal expression is equal to the second literal expression.a + b, b - (-a)
A. Yes B. No
Mathematics
Find the linear approximation of the function at the given point.
at 
A. 
B. 
C. 
D. 
Mathematics
Approximate the area of the triangle to the nearest tenth.a = 13.2, b = 17.4, c = 16.2
A. 107.5 B. 101.5 C. 104.5 D. 110.5
Mathematics
Solve.A commuter travels to work, driving a distance d at speed r. At the end of the day, she returns home and drives the same distance 6 mph faster, at a speed r + 6. Her average speed for the round trip can be represented by the expression 
. Simplify this expression.
A. 
B. 
C. 
D. 
Mathematics