Solve the problem.The future value of $7000 invested for 5 years at rate r, compounded annually, is given by 
Find the rate r, as a percent, that gives a future value of $9817.86. Round to the nearest whole percent.
A. 8%
B. 6%
C. 7%
D. 10%
Answer: C
Mathematics
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Solve the problem.The hyperbola 
- 
= 1 is shifted horizontally and vertically to obtain the hyperbola
- 
= 1Find the foci of the new hyperbola.
A. (-23, 2), (27, 2) B. (-18, 2), (22, 2) C. (2, -23), (2, 27) D. (2, -18), (2, 22)
Mathematics
Find the exact value under the given conditions.sin ? = - 
, ? < ? < 
; tan ? = - 
, 
< ? < ?Find cos (? + ?).
A. 
B. 
C. 
D. 
Mathematics
Solve.y varies inversely as x. If y = 48 when x = 9, find y when x = 8.
A. 
B. 54
C. 27
D. 9
Mathematics
Solve for t or y, as appropriate.et/720 = k
A. ln 720k
B. 
C. 720 ln k
D. 720ek
Mathematics