Answer:
<em>The deposit required is $6633.62 and the interest earned is $366.38</em>
Step-by-step explanation:
Compound interest occurs when the interest earned is reinvested rather than paying it out. When it happens interest in the next period is then earned on the principal sum plus previously accumulated interest.
The formula is:
Where:
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
It's given the final amount A=$7700 after t=3 years of investment in an account that pays an APR of r=5%=0.05. Since the interests compound quarterly and there are 4 quarters in a year, then n=4.
To find the principal P, we solve the previous equation for P as follows:
Substituting:
P=$6633.62
The interest earned is:
I = A - P = $7700 - $6633.62 = $366.38
The deposit required is $6633.62 and the interest earned is $366.38
Answer:
a. mean = 820; standard deviation = 57.74
b.0.75 or 75%
Step-by-step explanation:
Lower limit (L) = 720
Upper limit (U) =920
a.The mean of an uniform distribution is given by:
The standard deviation of an uniform distribution is given by:
b. The probaility that X is less 870 is:
Answer:
(xM, yM) (0, 0)
Step-by-step explanation:
Im not sure its right,
The answer would be D
-1 3/7=-10/7
-3 2/3=-11/3
-10/7 x -11/3=110/21
110/21=5 5/21
A negative times a negative =a positive
Answer:
B
Step-by-step explanation:
42 = 2*x + 2*6
2x=42-12=30
x=15