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camila68
07.10.2019 •
Mathematics
What is the standard form of the equation of the given circle with center a(4, 8)?
a.) (x - 4)^2 + (y - 8)^2 = 2.5
b.) (x + 4)^2 + (y + 8)^2 = 6.25
c.) (x + 4)^2 + (y + 8)^2 = 2.5
d.) (x - 4)^2 + (y - 8)^2 = 6.25
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Ответ:
Ответ:
step-by-step explanation:
it s given that and .
also, we know that and , therefore
hypotenuse=8, base=t and perpendicular=s.
now, using trigonometery, we have
substituting the given values, we have
which is the required value of cosy.