A new chocolate company is estimating how many candy bars per week college students will consume of their line of products. The graph shows the probable number of candy bars students (age 18-22) will consume from year 0 to year 10. B(x) gives the number of candy bars for boys, G(x) gives the number of candy bars for girls, and T(x) gives the total number for both groups. Use the graph to answer the question.
Estimate B(7) and G(7) and use your estimates to estimate T(7).
A. 2.3; 4.0; 6.3
B. 2.2; 4.3; 6.5
C. 3.5; 4.2; 7.7
D. 2.5; 4.0; 6.5
Answer: B
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Find the area of the specified region.Inside the circle r = 7 and to the right of the line r = 
sec ?
A. 
(4? - 3
)
B. 
(2? + 3
)
C. 
?
D. 
(2? - 3
)
Determine where the given function is concave up and where it is concave down. f(x) = 
A. Concave up on 
and 
, concave down on 
and 
.
B. Concave down on 
and 
, concave up on 
and 
.
C. Concave down on 
and 
, concave up on 
.
D. Concave down on (-?, 0), concave up on (0, ?)
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.The national debt of a country is 
and the population is 4,620,000. What is the debt per person? Write answer in standard notation.
A. $600 B. $6000 C. $60,000 D. $128,066,400
Given that an object is at position 
at any time t , find each of the following.
a) v (t ) . b) a(t ) . c) The position, velocity and acceleration when t = 7?/12.