Find the mass of the wire that lies along the curve r and has density ?.r(t) = (7 cos t)i + (7 sin t)j + 7tk, 0 ? t ? 2?; ? = 4
A. 14?
units
B. 392?
units
C. 8? units
D. 56?
units
Answer: D
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The following table shows the percentage P of the American food dollar that was spent on eating away from home as a function of the date d.
196919892009
253034?
Use functional notation to express the percentage of the American food dollar that was spent eating away from home in 2016. Then use the average rate of change to estimate that value.
?
A. 
B. ?
C. ?
D. None of the above
Sketch the graph of the quadratic function by using translations.f(x) = (x - 6)2 - 4
A. 
B. 
C. 
D. 
Provide an appropriate response.Find the ratio of the area of a circumscribed circle of a square to the area of the inscribed circle.
A. 
: 1
B. 4 : 1
C. 2 : 1
D. 3 : 2
Simplify the exponential expression.(x-4y5)-2
A. 
B. 
C. 
D. 