Simplify the expression.
A. x + 4
B. x - 2
C. x + 2
D. x + 4x - 2
Answer: C
Mathematics
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Find the area or volume.Find the area of the region in the first quadrant between the curve y = e-5x and the x-axis.
A. 1
B. 
C. 5
D. 
e
Mathematics
Use the inverse trig functions to express the angle in terms of the indicated unknown side. 
Use one of the inverse trig functions csc-1 or sec-1 to express angle A in terms of c.
A. A = csc-1 
B. A = sec-1 
C. A = csc-1 
D. A = sec-1 
Mathematics
Simplify the expression using the products to powers rule.(-5a)3
A. -125a B. -15a3 C. -15a D. -125a3
Mathematics
Find the standard form of the equation of the ellipse satisfying the given conditions.Foci: (-3, 0), (3, 0); vertices: (-4, 0), (4, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics