Answer:
hypotenuse is 22.47 m
Step-by-step explanation:
The length of both legs of a right angle triangle are 8m and 21 m
We need to find the hypotenuse
To find hypotenuse we use Pythagorean theorem
Hypotenuse is AC and other two legs are AB and BC

Hypotenuse ^2 = 8^2 + 21^2
hypotenuse = 
= 
= 
= 22.47
So the length of the hypotenuse is 22.47 m
Answer: The mean is 49.
Step-by-step explanation:
First add up all the numbers.
48 + 51 + 48 + 48 + 50 = 245
Then divide 245 by the amount of numbers are in your data (there are five numbers).
245 ÷ 5 = 49
Where’s the photo to this question?
Two hundred thirty five thousandths. -Sorry I edited this. Didn't realize my error until I did the actual math.
If that's not what you're referring to by "expanded form" you may be referring to
235 * (1/1000)