Find a cartesian equation of the following curve, assuming the center is at the origin. Use a graphing utility to check your work.A hyperbola with vertices (0, ±2) and eccentricity 2
A. 
- 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Answer: A
Mathematics
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Evaluate the integral.
A. sin-1 (x + 2) + C
B. (2x + 4) ln |x2 + 4x + 20| + C
C. 
tan-1 
+ C
D. 
sin-1 
+ C
Mathematics
Use two equations in two variables to find the following integers.Twice one integer plus another integer is 13. The first integer plus 3 times the second is 19.
A. 6, 3 B. 4, 5 C. 3, 5 D. 3, 6 E. 6, 6
Mathematics
Evaluate the expression using a rule for exponents.n0
A. -1 B. n C. 1 D. 0
Mathematics
Fill in the blank with one of the symbols =, <, or > to produce a true statement.-5 ? -7
A. = B. > C. <
Mathematics