Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 5
- 3
- 
- 4
A. -48
+ 26
B. -48
- 26
C. 48
- 26
D. 48
+ 26
Answer: C
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A. Hyperbola B. Intersecting lines C. Ellipse D. Empty set
Decide whether or not the given equation is an identity.tan x + cot x = sec x csc x
A. Yes B. No
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r csc ? = -6
A. x2 + (y + 3)2 = 9; circle, radius 3,
center at (0, -3) in rectangular
coordinates
B. x2 + (y - 3)2 = 9; circle, radius 3,
center at (0, 3) in rectangular
coordinates
C. (x + 3)2 + y2 = 9; circle, radius 3,
center at (-3, 0) in rectangular
coordinates
D. (x - 3)2 + y2 = 9; circle, radius 3,
center at (3, 0) in rectangular
coordinates
Express the number as the ratio of two integers.0.868686 . . .
A. 
B. 
C. 
D. 