Answer:
25 un²
Step-by-step explanation:
5 · 5 = 25 un²
Answer:
y ≥−3
Step-by-step explanation:
1 By inspecting the graph, the range is:
y\ge -3y≥−3
Done
Answer:
Step-by-step explanation:
Area of a triangle = height x base ÷ 2
When ever you have an isosceles triangle, remember that you can split it in half to form two right angled triangles - which allow you to use Pythagoras' Theorem.
So we split 10cm in half to get 5cm.
We can then use 13cm and 5cm to work out the height:
Height = √(13² - 5²) <em>(Note: you subtract because you are using the </em>
= √144 <em>(hypotenuse)</em>
<em> = </em>12
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Now to get the area, we just multiply the base (which is 10) by the height (which is 12) and divide by 2:
Area = 12 x 10 ÷ 2
= 6 x 10 <em>(note: 12 ÷ 2 = 6 )</em>
= 60 cm²
_____________________________________
Answer:
60 cm²
Answer:
Step-by-step explanation:
from equation 
and 
from equation and 
![a=\left(1-\frac{k}{100}\right)^2\left(1+\frac{z}{100}\right)a\\\left(1+\frac{z}{100}\right)=\frac{1}{\left(1-\frac{k}{100}\right)^2}\\\frac{z}{100}=\frac{1}{\left(1-\frac{k}{100}\right)^2}-1\\z=100\left[\frac{1}{\left(1-\frac{k}{100}\right)^2}-1\right]](https://tex.z-dn.net/?f=a%3D%5Cleft%281-%5Cfrac%7Bk%7D%7B100%7D%5Cright%29%5E2%5Cleft%281%2B%5Cfrac%7Bz%7D%7B100%7D%5Cright%29a%5C%5C%5Cleft%281%2B%5Cfrac%7Bz%7D%7B100%7D%5Cright%29%3D%5Cfrac%7B1%7D%7B%5Cleft%281-%5Cfrac%7Bk%7D%7B100%7D%5Cright%29%5E2%7D%5C%5C%5Cfrac%7Bz%7D%7B100%7D%3D%5Cfrac%7B1%7D%7B%5Cleft%281-%5Cfrac%7Bk%7D%7B100%7D%5Cright%29%5E2%7D-1%5C%5Cz%3D100%5Cleft%5B%5Cfrac%7B1%7D%7B%5Cleft%281-%5Cfrac%7Bk%7D%7B100%7D%5Cright%29%5E2%7D-1%5Cright%5D)
