X^2 + y^2 - 2x + 8y - 47 = 0
x^2 + y^2 - 2x + 8y = 47
(x^2 - 2x) + (y^2 + 8y) = 47
(x^2 - 2(1)x) + (y^2 + 2(4)y) = 47
(x^2 - 2(1)x + 1^2) + (y^2 + 2(4)y + 4^2) = 47 + 1^2 + 4^2
(x - 1)^2 + (y + 4)^2 = 64 = 8^2
r=8
It isn't easy really but you can always divide the number out. For example 50% of 200 is 100 by dividing 200 by 2 or 25% of 100 is 25 by dividing 100 by 4 since 25% is equivalent to 1/4
Hello!
<u>What is an x-intercept</u>:
⇒ <em>value of x</em> when the <em>value of y</em> equals '0'

x-intercept is <u>25/8</u>
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<u></u>
<u>What is a y-intercept:</u>
⇒ <em>value of y</em> when the <em>value of x</em> equals '0'

y-intercept is <u>5</u>
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Hope that helps!
<u />
<span>2a(7a²-3a+9)
=14a^3 - 6a^2 +18a
answer is </span><span>D. 14a³-6a²+18a</span>
Answer:
D or B
Step-by-step explanation: