Decide whether the given number is a solution of the given equation.Is -2 a solution of 5x = -10?
A. no
B. yes
Answer: B
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Combine like terms and solve the following equation.66 = - 8s - 3ss = __________
Fill in the blank(s) with the appropriate word(s).
Solve the problem.While bungee jumping, Gregory falls from a height of 80 feet. He continues to bounce one-half the height from which he last fell. Write out the first five terms of this geometric sequence and find the general term.
A. 80, 40, 20, 10, 5; an = 
B. 40, 20, 10, 5, 
; an = 
C. 80, 40, 20, 10, 5; an = 
D. 80, 78, 76, 74, 72; an = 80 - 2(n - 1)
Provide an appropriate response.Perform the indicated operation and simplify: 
+ 
Fill in the blank(s) with the appropriate word(s).
Find the vertex, the focus, and the directrix of the parabola.y2 - 8x + 2y + 9 = 0
A. V: 
; F: 
; D: y = 
B. V: (5, 1); F: (9, 1); D: y = 7
C. V: 
; F: (-1, 1); D: y = 3
D. V: (1, -1); F: (3, -1); D: x = -1