Solve the problem.If a construction crew building a skyscraper can build 68 floors in 119 days, what is the pace per day?
A. 0.6 floor/day
B. 0.9 floor(s)/day
C. 1.8 floors/day
D. 1.1 floor(s)/day
Answer: A
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Write the equation of a circle with the given center and radius.Center at (0, -6); Radius 9
A. x2 + (y + 6)2 = 81 B. (x + 6)2 + y2 = 81 C. x2 + (y - 6)2 = 9 D. (x - 6)2 + y2 = 81
Solve the system of equations by determinants. 3x + z = -7 w + x + 3y - z = 243w + y + 3z = 11 w + x + 4y = 25
A. w = 18, x = -3, y = 20, z = -12 B. w = 6, x = -1, y = 20, z = -4 C. w = 6, x = -1, y= 5, z = -4 D. w = 6, x = -3, y = 10, z = -8
Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form.
+ 
- 
A. 
B. 
C. 
D. 
Solve the equation and check your solution.
- 
= 
- 
A. x = 
B. x = - 
C. x = 
D. x = 