Answer:
<em>Mrs. Adams will earn $3,120 of interest at the end of year 8.</em>
Step-by-step explanation:
<u>Simple Interest</u>
In simple interest, the money earns interest at a fixed rate, assuming no new money is coming in or out of the account.
We can calculate the interests earned by an investment of value A in a period of time t, at an interest rate r with the formula:

Mrs. Adams deposited an amount of A=$12,000 into an account that earns an annual simple interest rate of r=3.25%. We must find the interest earned in t=8 years. The interest rate is converted to decimal as:

The interest is then calculated:

Mrs. Adams will earn $3,120 of interest at the end of year 8.
It is (5x600)+(5x80)=3400
Answer:
b. log6561(9) = 1/4
Step-by-step explanation:
The relationship between the exponential form and the log form is ...

The exponent is the logarithm. The base is the value the exponent is being applied to.
Here, you have ...

Comparing this to the form above, we see ...
b = 6561, n = 1/4, x = 9
so the log form of the equation is ...

This matches choice B.
It is B. Since each angle is 60 degrees, if you rotate B counterclockwise 6 times, it means that you rotated B 360 degrees. Therefore, the image of B would be B.
Answer:
3.33 meters per second
Step-by-step explanation:
you must find the total time that Mr. B spent to complete the swim and bike.
Information:
0h 25' 10'' ---------> Swim
1h 30' 50'' ---------> Bike

he spent 1h 55' 60'', this is 1h 56'.
now you must substract this time from the record time to find the time alloted to run:
first you convert both times into minutes:

now substracting:

so he must travel 10 km in 50 minutes, that is:
speed = distance/time

1 km is equal to 1000 meters and 1 minute is equal to 60 seconds.

so Mr.B's speed must be 3.33 meters/sec