He do u do question 2 step by stem. I need help fast
1 answer:
For this question you really have to see how much information you can get out of just knowing the endpoints of the diameter.
The y value is the same for both endpoints of the diameter so we know that the given diameter is a horizontal line that is 8 units long because 4 - (-4) = 8, and the radius is 4.
We also know that the center of the circle is the midpoint of the endpoints of the diameter. Halfway between -5 and -5 is -5 so the y value of the midpoint is -5. halfway between -4 and 4 is 0 so the x value of the midpoint must be 0. Thus the center of the circle is (0,-5)
Equation of a circle:
(h,k) is the center of the circle and r is the radius. If you plug in the values of each of these variables, you get the equation of the circle:
The y value is the same for both endpoints of the diameter so we know that the given diameter is a horizontal line that is 8 units long because 4 - (-4) = 8, and the radius is 4.
We also know that the center of the circle is the midpoint of the endpoints of the diameter. Halfway between -5 and -5 is -5 so the y value of the midpoint is -5. halfway between -4 and 4 is 0 so the x value of the midpoint must be 0. Thus the center of the circle is (0,-5)
Equation of a circle:
(h,k) is the center of the circle and r is the radius. If you plug in the values of each of these variables, you get the equation of the circle:
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The correct answer is 12
Set up a ratio and then solve. See paper attached. (:
x is time and y is pencils that you have
'starts with 90' so at x=0, plot y=90
'gives away 15 every hour' so for every 1 hour, move 15 down on y
so at x=1, do 90-15=75 pencils
at x=2, do 75-15=60 pencils
etc
until you get to
x=6, do 15-15=0 pencils then stop because you can't give away 15 pencils when you have 0
see attachment for plot
I don't know how your segment tool works so you do it
if it draws a line, you only need 2 points, just do when x=0, y=90 and when x=6, y=0
