Translate the sentence into an equation, then solve.r decreased by 
is 8.
A. r - 
= 8, r = 7
B. r - 8 = 
, r = 2
C. 
- r = 8, r = 8
D. r - 
= 8, r = 8
Answer: D
Mathematics
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Solve the problem.Find the adjusted balance due at maturity for a 180 day note of $38,400 at 11.7% ordinary interest if a partial payment of $20,000 is made on the 100th day of the loan.
A. $19,648.00 B. $510.85 C. $1248.00 D. $20,158.85
Mathematics
Find the opposite of the number.-24
A. 24
B. - 
C. -24
D. 0
Mathematics
Let A be an invertible matrix. Solve the equation.
?
?
A. 
B. 
C. 
D. 
E. none of these
Mathematics
Find an equation of the parabola that satisfies the given conditions.Focus (-4, -1), directrix y = 7.
A. x2 + 8x + 5y - 56 = 0 B. x2 + 14x + 16y - 56 = 0 C. x2 + 8x + 8y - 64 = 0 D. x2 + 8x + 16y - 32 = 0 E. x2 + 14x + 5y - 32 = 0
Mathematics