Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire of constant density that lies along the first-quadrant portion of the circle 
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 0, 
= 
Answer: C
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Consider the differential equation. A detailed direction field is not needed. Find the solutions that are constant, for all 
(the equilibrium solutions). In what regions are solutions increasing? Decreasing?y'(t) = (y - 7)(7 + y)
A. y = 7; increasing for 
> 7; decreasing for 
< 7
B. y = -7; increasing for 
< 7; decreasing for 
> 7
C. y = 7, y = -7; increasing for 
> 7; decreasing for 
< 7
D. y = 7, y = -7; increasing for 
< 7; decreasing for 
> 7
Provide an appropriate response.The LIFO method determines the cost of the ending inventory based on the cost of the oldest purchases.
A. True B. False
Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. No x-intercepts, y-intercept: 
;
B. No x-intercepts, y-intercept: 
;
C. No x-intercepts, y-intercept: 
;
D. No x-intercepts, y-intercept: 
;
The circle graph shows the results of the student council presidential election. The complete circular area represents 100% of the votes.
The circle graph shows what percent of the vote each person received.How many votes did Matt get?
A. 30 B. 50 C. 56 D. 64