Answer:
15 units
Step-by-step explanation:
By using the Pythagoras Theorem,
C^2 = A^2 + B^2
Substitute in the given values,
25^2 = a^2 + 20^2
625 = a^2 + 400
625 - 400 = a^2 + 400 - 400
a^2 = 225
![a = \sqrt{225}](https://tex.z-dn.net/?f=a%20%3D%20%20%5Csqrt%7B225%7D%20)
= 15
Hope this too helped! ^^
I'd recommend watching a video or two on the topic of Pythagoras Theorem, if this explanation isn't clear enough.
Use distributive property:
![(x+3)(x-2)=(x)(x)+(x)(-2)+(3)(x)+(3)(-2)\\\\=x^2-2x+3x-6=x^2+x-6](https://tex.z-dn.net/?f=%28x%2B3%29%28x-2%29%3D%28x%29%28x%29%2B%28x%29%28-2%29%2B%283%29%28x%29%2B%283%29%28-2%29%5C%5C%5C%5C%3Dx%5E2-2x%2B3x-6%3Dx%5E2%2Bx-6)
Turn the fraction into a improper fraction.
4 5/6 -> 29/6
Divide both numbers.
29 / 6 = 4.833...
Best of Luck!
Answer:
16m
8m
50.24m
200.96m^2
Step-by-step explanation:
13. 8*2=16
14. 8m
15. 2pi r = 2* pi* 8= 50.24
16. pi r^2 = pi * 8^2= 200.96m^2