Simplify by removing grouping symbols and combining like terms.-2x - 5(x - 6y)
A. -7x - 6y
B. -3x + 30y
C. -7x - 30y
D. -7x + 30y
Answer: D
Mathematics
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Find the equation of the hyperbola satisfying the given conditions.Vertices at (-4, 0) and (4, 0); focus at (4
, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Solve the problem.A window washer accidentally drops a bucket from the top of a 400-foot building. The height h of the bucket after t seconds is given by 
When will the bucket hit the ground?
A. 25 sec B. -5 sec C. 80 sec D. 5 sec
Mathematics
Solve the equation and express the solution in exact form.ln 2x + ln 9x = ln 19
A. {1}
B. {0}
C. 
D. 
Mathematics
Write an equation for the parabola.
points: (3, -2), (7, -4)
A. (x + 2)2 = 8(y - 3) B. (y - 3)2 = -8(x + 2) C. (x - 2)2 = -8(y + 3) D. (x - 3)2 = -8(y + 2)
Mathematics