Use I = Prt for simple interest to find the indicated quantity.P = $3000; t = 90 days; I = $105. Find r. (Use 360 days in a year.)
A. 3.5%
B. 14.0%
C. 9.7%
D. 14.2%
Answer: B
Mathematics
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Solve the problem.Find the foci and asymptotes of the following hyperbola:4y2 - 25x2 = 100
A. Foci: (
, 0), (-
, 0); Asymptotes: y = 
x, y = - 
x
B. Foci: (
, 0), (-
, 0); Asymptotes: y = 
x, y = - 
x
C. Foci: (0, 
), (0, -
); Asymptotes: y = 
x, y = - 
x
D. Foci: (0, 
), (0, -
); Asymptotes: y = 
x, y = - 
x
Mathematics
Find the derivative of the function by first expanding or simplifying the expression. f(x) = (4x + 3)2
A. f'(x) = 16x + 9 B. f'(x) = 8x + 6 C. f'(x) = 16x + 12 D. f'(x) = 32x + 24
Mathematics
Find the principal. Round to the nearest cent.Rate: 8%Time: 80 daysInterest: $1,564.26
A. $8,798.96 B. $87,989.63 C. $88,039.63 D. $80
Mathematics
Perform the indicated operation and write the answer in simplest form.- 
- 
A. - 
B. - 
C. 
D. 
Mathematics