Diameter = 3 yards circumference =??
1 answer:
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Answer:
Step-by-step explanation:
Well, I really don’t like graphic approaches in math, so hear ya go a formula:
Although there are easier ways that work for some quadratics, but this formula works for them all. (It is atached, have a look)
So,
( -(-2)+- square root of ((-2)^2-4(1)(-40)) ) / 2(1)
Note that for a hear I use one, since there is nothing in front of x.
( 2 + (12.8) ) / 2 < with plus
( 2 -(12.8) ) / 2 < with minus
X = 7.4
Or
X = -5.4
(Quad equations have 2 answers)
<span>(a) y - 0 = -3/5(x - 3) . . . . . . the 1st selection
(b) </span><span>y = -3/5x + 9/5 . . . . . . . . the 3rd selection</span>
(b) </span><span>y = -3/5x + 9/5 . . . . . . . . the 3rd selection</span>