Find the domain of the given function.f(x) = 
A. (-7, ?)
B. (-?, ?)
C. (-?, 7) ? (7, ?)
D. [7, ?)
Answer: A
Mathematics
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Solve the joint variation.If y varies jointly with x and z, and y = 30 when x = 3 and z = 2, find y when x = 4 and z = 1.
A. 5
B. 
C. 20
D. 4
Mathematics
Find the current ratio and the acid-test ratio for the indicated year. Round each ratio to the nearest hundredth of a percent.
This year current liabilities are $241,000.
A. 1.24; 0.67 B. 1.24; 0.87 C. 1.41; 0.87 D. 1.41; 0.64
Mathematics
Find an equation for the ellipse described.Center at (0, 0); focus at (-3, 0); vertex at (5, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Factor completely. If the polynomial is prime, state so.216p3 + q3
A. (6p + q)(36p2 - 6pq + q2) B. (6p + q)(36p2 + q2) C. (6p + q)(36p2 - 6pq - q2) D. (6p + q)(36p2 + 6pq + q2)
Mathematics