Add or subtract. Then simplify by collecting like radical terms, if possible. Assume that no radicands were formed by raising negative numbers to even powers.
- 7
+ 5
A. 7
B. -2
C. 7
D. -2
Answer: C
Mathematics
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Factor out the common binomial factor as the GCF.(x + 2)(4x + 7) + (x + 2)(9x - 11)
A. (x + 2)(13x - 4) B. (x + 2)(13x + 4) C. (x + 2)(9x + 4) D. (x + 2)(9x - 4)
Mathematics
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r sec ? = -6
A. 
x = -6; vertical line 6 units
to the left of the pole
B. 
y = -6; horizontal line 6 units
below the pole
C. 
(x + 3)2 + y2 = 9; circle, radius 3
center (-3, 0) in rectangular coordinates
D. 
x2 + (y + 3)2 = 9; circle, radius 3,
center at (0, -3) in rectangular coordinates
Mathematics
Give the meaning of the metric prefix.deci
A. 
B. 100
C. 10
D. 
Mathematics
Find the derivative of the function.y = 
A. 
B. 
C. 
D. 
Mathematics