Choose the graph that represents this subset of the real numbers.
?
and 
?
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
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Factor the polynomial completely. If the polynomial is prime, so state.-3x2 + 4x + 15
A. -(3x - 5)(x + 3) B. -(3x + 5)(x - 3) C. -(3x - 3)(x + 5) D. prime
Mathematics
Use implicit differentiation to find the specified derivative at the given point.Find 
at the point 
for ex2cos yz = 0.
A. 2
B. - 2
C. - 
D. 
Mathematics
If r is a positive number and the point (x, y) is in the indicated quadrant, decide whether the given ratio is positive or negative.I, 
A. Negative B. Positive
Mathematics
Graph the function and give its domain and its range.f(x) = 
- 1
A. [1, ?); [0, ?)
B. [0, ?); [1, ?)
C. [-1, ?); [0, ?)
D. [0, ?); [-1, ?)
Mathematics