Solve the problem.(i) In general terms, how does the surface-area-to-volume ratio of a rat compare to that of a gorilla?(ii) Which animal must maintain a higher rate of metabolism to replace the heat lost through the skin?
A. (i) The surface-area-to-volume ratio of a rat is higher than the surface-area-to-volume ratio of a gorilla.
(ii) The rat must maintain a higher rate of metabolism.
B. (i) The surface-area-to-volume ratio of a rat is equal to the surface-area-to-volume ratio of a gorilla.
(ii) Both animals must maintain the same rate of metabolism.
C. (i) Cannot compare the two because one type of creature is a mammal and the other is not.
(ii) Cannot compare the two because one type of creature is a mammal and the other is not.
D. (i) The surface-area-to-volume ratio of a rat is lower than the surface-area-to-volume ratio of a gorilla.
(ii) The gorilla must maintain a higher rate of metabolism.
Answer: A
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Solve the system to find W1 and W2. Linear systems occur in the design of roof trusses for new homes and buildings. The simplest type of roof truss is a triangle. The truss shown in the figure is used to frame roofs of small buildings. If a force of 116 pounds is applied at the peak of the truss, then the forces or weights W1 and W2 exerted parallel to each rafter of the truss are determined by the following linear system of equations. 
(W1 + W2) = 116 W1 - W2 = 0
A. W1 = -66.97 lb; W2= -66.97 lb B. W1 = 38.67 lb; W2= 38.67 lb C. W1 = 66.97 lb; W2= 66.97 lb D. W1 = 66.97 lb; W2= 58 lb
Find an equation of the tangent line to the given curve at the indicated point.
Solve.A worker has readings that take 
minute each to read and record. How many readings can be completed in 54 minutes?
A. 81 readings B. 55 readings C. 20 readings D. 36 readings
Solve the equation.
= 
A. 
B. 
C. 
D. 