The number of people who donated to a certain organization between 1975 and 1992 can be modeled by the equation 
donors, where t is the number of years after 1975. Find the inflection point(s) from 
through ![]()
src="https://sciemce.com/media/3/ppg__cognero__Chapter_3_Applications_of_the_Derivative__media__016da598-019a-4cce-8343-ac1f6defaf9e.PNG" style="vertical-align:middle;" />, if any exist.
?
A. There are no inflection points from 
.
B. There is one inflection point at 
.
C. There are inflection points at 
.
D. There is one inflection point at 
.
E. There are inflection points at 
, 
, 
.
Answer: B
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Find the product.[(2x + 2) + 3y]2
A. 4x2 + 8x + 12xy + 12y + 9y2 B. 4x2 + 12xy + 9y2 C. 4x2 + 4x + 4 + 6xy + 6y + 9y2 D. 4x2 + 8x + 4 + 12xy + 12y + 9y2
Find the logarithm. Give an approximation to four decimal places.ln 0.997
A. 0.0013 B. -0.0030 C. -0.0013 D. 0.0030
The vectors u, v, and w are drawn below. Sketch the given vector. 
w - v
A. 
B. 
C. 
D. 
Neglecting air resistance and the weight of the propellant, determine the work done in propelling a eight-ton satellite to a height of 100 miles above earth. Assume that Earth has a radius of 4,000 miles. ?
A. 
ft-lb
B. 
ft-lb
C. ?
ft-lb
D. ?
ft-lb
E. ?
ft-lb