Answer:
6
Step-by-step explanation:
m = 3
n = 1
Equation
m(m - n) Substitute the givens
Solution
3(3 -1 ) Evaluate what is inside the brackets.
3(2) multiply
6
Answer:
19.2
Step-by-step explanation:
You get the mean of a set of numbers by adding them and dividing the sum by how many numbers there are. In this case, you don't know what the individual 8 numbers are, but you can find out what they add up to.
Mean = (sum) / 8
17 = (sum) / 8
17 x 8 = sum
136 = sum
Now take out the numbers 9, 11, 20, which reduces the sum by 40. There are 5 numbers left and they add up to 136 - 40 = 96.
The new mean is 96 / 5 = 19.2
Check picture for working out
-18 + x = -11
Let's add 18 to both sides
x = 7
1.) 2000 2.) 680000 3.) .0000007 4.) .00135 5.) 3062000 6.) 7x10^5 7.) 3.2x10^7 8.)4.5x10^-2 9.)3.46781x10^-5 10.) 1.3x10^18
