barbareishon11
16.06.2020 •
Mathematics
What is the y-intercept of the function f(x) =
2x + ?
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Ответ:
9 cm
Step-by-step explanation:
We can use the Pythagorean theorem
a^2+b^2 = c^2
12^2+b^2 = 15^2
144 +b^2 = 225
Subtract 144 from each side
144-144+b^2 = 225-144
b^2 = 81
Take the square root of each side
sqrt(b^2) = sqrt(81)
b = 9