800/100 = 8
800 is 100 times as much as 8
Pythagora: 20^2=(4x)^2+(3x^2)
400=16x^2+9x^2
x^2=400/25
x^2=16
x=4
Answer:
Hello fellow brainlian, I am pretty sure the answer is A)
Step-by-step explanation:
Have a Totally Horse-some Day!
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-The one and only Alaska