Find an equation for the line with the given properties.Perpendicular to the line 
; containing the point (5, 4)
A. y = - 
x - 
B. y = - 7x - 39
C. y = - 7x + 39
D. y = 7x - 39
Answer: C
Mathematics
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Solve the problem.Let u = 
. Find 2u.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
- 
= 0
A. no solution B. -6, 6 C. 6 D. -6, 0, 6
Mathematics
Find principal to the nearest dollar, rate to the nearest tenth of a percent, or time to the nearest day. Use banker's interest.House of Realty earned 
interest on a $18,000 deposit in an account paying 4%. Find the number of days that the funds were on deposit.
A. 315 days B. 213 days C. 210 days D. 58 days
Mathematics
Solve using Cramer's rule.
A. (7, 2) B. (2, 7) C. (-2, -7) D. (-7, 2)
Mathematics