Solve and check your solution.-3x = -12
A. 4
B. 9
C. -9
D. 2
Answer: A
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Provide an appropriate response.It can be shown that a hyperbola with center at the origin, foci at F'(-c, 0) and F(c, 0), and equation 
has equation 
- 
= 1. Use this result to find an equation of a hyperbola with center at the origin, foci at (-8, 0) and (8, 0), and absolute value of the distances from any point of the hyperbola to the two foci equal to 8.
A. 
- 
= 1
B. 
- 
= 1
C. x2 - y2 = 8
D. 
- 
= 1
Factor by grouping.8x2 + 10x + 12x + 15
A. (2x + 3)(4x + 5) B. (2x - 3)(4x - 5) C. (8x - 3)(x - 5) D. (8x + 3)(x + 5)
Use properties of fractions to simplify the expressions. The word per means division and may be replaced by a fraction bar. Round your answer to two decimal places.
A) 2.5 gal/hr
B) 2.5 hr/gal
C) 2 hr/gal
D) 5 gal
E) 3.5 gal/hr
Perform the division.
A. x2 - 4 B. x2 + 4x - 21 C. x + 4 D. x - 4