Solve the inequality. Express your answer using interval notation.12 < 3x ? 21
A. [-7, -4)
B. (4, 7]
C. (-7, -4]
D. [4, 7)
Answer: B
Mathematics
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Find the second derivative of the function.p = 
A. 
= 
+ 
+ 
B. 
= 
+ 
+ 
C. 
= - 
- 
- 
D. 
= - 
- 
- 
Mathematics
Factor completely.49k3m + 70k2m2 + 25km3
A. km(7k + 5m)(7k - 5m) B. km(7k - 5m)2 C. km(7k + 5m)2 D. Prime
Mathematics
Factor completely.36x2 + 84x + 49
A. (6x - 7)2 B. (6x + 7)2 C. (6x + 7)(6x - 7) D. Prime
Mathematics
Solve the system of equations by using substitution. 
A. x = 10, y = 10 B. x = 0, y = 10 C. x = 0, y = 0 D. x = 10, y = 0
Mathematics