Answer:
Center (2,4) , radius=3, h=2 v=4 & r=3
Step-by-step explanation:
Ok so in order to find the center of the circle, use the graph (like you can see that the x is 2,if you count down from 5 to the left. the y is 4,because it's below 5 in the y pole).So the center is (2,4)
Now, in order to find the length of the radius, you need to do the following:
Take the center point (2,4) and the point where the circle ends (2,1) . Because radius is a straight, you can substract the y values of the two points : 4-1=3
As you can see in the equation, the h symbolizes the x of the center point and the v symbolizes the y.The r is the radius that we already found(3)
So it's shouldn't be a problem now to find the equation of the circle,simply replace the values with their numbers:
(x-2)^2 + (y-4)^2 = 9
Answer:
D)
Step-by-step explanation:
Answer:
Step-by-step explanation:
tan7=h/820
h=820tan7
h=101m
Take first number as x
<span />second number is 3x
<span />third number = 3x+5
<span>
</span>
<span>
</span>
twice the third is 5 less than second, means second minus 2 times third is equal to five or 3x-2(3x+5)=5..........Answer is D
