I think the answer is 54 because negative times a negative number equals positive and 9x5 is 45 + another negative times negative so 3x3 is 9 so add 45+9 which is 54.
The answer is -6300
Explanation:
6.3 x 10^-3
1) Accoring to PEMDAS, we must do 10^-3 first. 10 x 10 x 10 = 1,000, then we add the negative
6.3 x -1000
2) Now we just move the decimal on 6.3 three times to the right, then add the negative
6.3 x -1000
-6300
Formula of v. of sphere = (<span><span>4</span>π</span>r

)/3<span>
r = 3
pi = 3
(4 x 3 x </span>

)/3 = 113.1
Answer = 110cm
Answer:
Brionny invested £8400.
Step-by-step explanation:
Simple Interest
This is a simple interest problem.
The simple interest formula is given by:

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.
After t years, the total amount of money is:

In this question:
We divide in two intervals, the first year and the second year. We have to know that the amount after the end of the first year is the principal at the start of the second year.
First year:
Amount of 2% interest, during 1 year.
So the interest earned is:

The total amount at the end of the first year is:

Second year:
We have that:

The interest earned is of:

The total amount is:

After two years, the investment is worth £8653.68 How much did Briony invest?
So



Brionny invested £8400.