Answer:
i think is A
Step-by-step explanation:
because need to check first
Answer:
x =-5± 2i sqrt(14)
Step-by-step explanation:
x^2 + 10x= -81
Take the coefficient of x and divide by 2
10/2 = 5
Square it
5^2 =25
add to each side
x^2 + 10x+25 = -81+25
( x+5) ^2 = -56
Take the square root of each side
sqrt(( x+5) ^2) =± sqrt(-56)
x+5 = ± sqrt(-1) sqrt(4*14)
x+5 =± i sqrt(4)sqrt(14)
x+5 =± i 2 sqrt(14)
Subtract 5 from each side
x+5-5 =-5± i 2 sqrt(14)
x =-5± 2i sqrt(14)
Answer:
Annual rate of interest will be 132.876 %
Step-by-step explanation:
We have given amount which he has to pay A = $611.03
He does a monthly payment of $26.17
So principle amount P = $26.17
Time = 2.5 years
As payment is done monthly so time period = 12×2.5 = 30 periods
Future amount is given by
%
So annual rate will be 11.07×12 = 132.876%
Annual rate of interest will be 132.876 %
Hi Emily,
I think the answer is C 523.3
Good luck Emily!!