the answer is 78 kilometers.
1 cm=15 kilometers
so, 6 cm is equal to 90 kilometers.
0.8 millimetres is approximately 12 kilometers.
90 kilometers minus 78 kilometers is equal to 12.
Answer:
Subtract then divide or simplify.
= 8/4 = 2/1 = 2
Anser is 2
subtract numerator and denominator, then simplify.
Step-by-step explanation:
Only One solution
Hope your satisfied
Kepler's 3rd Law is t^2 = r^3
Let's say "r" is 2, then
t^2 = 8
t =
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2.8284271247
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Basically, t = r^1.5
If you want to know more about Kepler's 3rd Law click here:
http://www.1728.org/kepler3a.htm
So the equation to remember is ax^2+bx+c so since the equation is x^2-4x-21 then a is x^2 and b is -4x