Find the total area of the region between the curve and the x-axis.y = (x + 1)
; 4 ? x ? 16
A. 
B. 1048
C. 2564
D. 
Answer: A
Mathematics
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Find the sum of the geometric series.
Express the answer as a fraction.
A. 
B. 
C. 
D. 
Mathematics
Eliminate the parameter. Write the resulting equation in standard form.A circle: x = 3 + 2 cos t, y = 5 + 2 sin t
A. 
+ 
= 1
B. 
+ 
= 1
C. (x - 3)2 + (y - 5)2 = 4
D. 
+ 
= 1
Mathematics
Solve.A certain amount of money saved for 1 year at a certain annual interest rate (simple interest) yielded $16.20 in interest. If we had added $81 to the principal and reduced the interest rate by 1 percentage point(s), the interest would have been the same. Find the principal and the rate.
A. $1616.00, 5% B. $324.00, 5% C. $8.17, 19.83% D. $1616.00, 4%
Mathematics
Decide whether or not the ordered pair satisfies the system of linear equations.(-7, -4);
A. Yes B. No
Mathematics