Solve the equation and check your solution.
- 
= 
- 
A. x = 
B. x = - 
C. x = 
D. x = 
Answer: B
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Decide whether the set is countably infinite. ? Set of whole numbers. ?
A. no B. yes
Solve the problem.A balloon (in the shape of a sphere) is being inflated. The radius is increasing at a rate of 17 cm per second. Find a function, r(t), for the radius in terms of t. Find a function, V(r), for the volume of the balloon in terms of r. Find (V ? r)(t).
A. (V ? r)(t) = 
B. (V ? r)(t) = 
C. (V ? r)(t) = 
D. (V ? r)(t) = 
Write a matrix to display the information.A company makes 3 types of cable. Cable A requires 3 black wires, 3 white wires, and 2 red wires. Cable B requires 1 black, 2 white, and 1 red. Cable C requires 2 black, 1 white, and 2 red. Make a 3 × 3 matrix showing the wire requirements. Assign the cable types to the rows and the wire types to the columns.
A. 
B. 
C. 
D. 
Determine whether the ordered triple is a solution of the system of equations.
?
?
?
?
A. No B. Yes