Write down three integers,all less than 25, whose range is 8, and mean is 11
1 answer:
You might be interested in
Answer:
-42
Step-by-step explanation:
i put two documents for you. check them out and try to solve some math problems like this. hope it helps!:)
The perimeter of a shape is the sum of its side lengths.
<em>Joshua miscalculated the third length of the triangle</em>
First, we calculate the third length (x) of the triangle.
Because the triangle is right-angled, we can make use of Pythagoras.
So we have:
Take square roots of both sides
The other shape in the figure is a square.
So, the perimeter (P) is
---- i.e. the sum of the visible lengths
So, we have:
Evaluate like terms:
Hence, Joshua's error is that:
<em>He miscalculated the third length of the triangle</em>
Read more about perimeters at: