Solve the equation.
= 3
A. {6}
B. {1}
C. {15}
D. {3}
Answer: C
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Determine whether the sentence is a statement.The orbit of Venus lies completely within the orbit of Earth.
A. statement B. not a statement
Assume you have a digraph with 5 vertices (A, B, C, D, and E) and 9 arcs. A is incident from C, D, and E; B is incident to D and E and incident from C; D is incident to C and incident from E.Vertex D is
A. incident to vertices A and C. B. incident to vertex E only. C. incident to vertex A only. D. incident to vertex B only. E. none of these
Zinc Corporation is developing its cash budget for this month. Each month, the firm manufactures and sells $15,000 of products, and it pays $10,000 for wages, taxes, cost of goods sold, and other operating expenses. Zinc has nothing in its checking account even though its target cash balance is $8,000. What amount will Zinc show on the "bottom line" of its cash budget for this month? That is, what will be Zinc's cash position?
A. Zinc has surplus cash of $8,000. B. Zinc has a cash shortfall of $3,000. C. Zinc has surplus cash of $6,000. D. Zinc has a cash shortfall of $23,000. E. Zinc has surplus cash of $20,000.
Solve the problem.Newton's law of cooling states that the temperature f(t) of a body at time t is given by: 
where C and k are constants and T0 is the temperature of the environment in which the object rests. If C = -28.5 and k = 0.04 and t is in hours, how long will it take for a frozen roast to thaw to a temperature of 0°C in a refrigerator that is at 5°C? Round your answer to the nearest hour.
A. 38 hr B. 44 hr C. 48 hr D. 42 hr