Answer:
r = 2. The center is at (0, 3).
Step-by-step explanation:
Compare the given x ^ 2 + (y - 3) ^ 2 = 4 to the standard equation
(x - h)^2 + (y - k)^2 = r^2.
It becomes obvious that h = 0, k = 3 and r = 2. The center is at (0, 3).
Answer:
b =15
Step-by-step explanation:
We can use Pythagoras theorem to find b:
![a^{2}+b^{2} = c^{2}](https://tex.z-dn.net/?f=a%5E%7B2%7D%2Bb%5E%7B2%7D%20%3D%20c%5E%7B2%7D)
![8^{2} + b^{2} = 17^{2}](https://tex.z-dn.net/?f=8%5E%7B2%7D%20%2B%20b%5E%7B2%7D%20%3D%2017%5E%7B2%7D)
64 +
= 289
64 + 225 = 289
64 +
= 289
b = 15
hope this helps :) and sorry if not right
Step-by-step explanation:
the slope is always the factor of x.
it is expressed as ratio y/x indicating how many units y changes when x changes a certain amount of units.
parallel means they have the same slope (factor of x).
perpendicular (90 degrees) means x and y trade places upside-down, and the sign is flipped.
so,
10) neither. we have the slopes -2/1 and 1/1.
11) parallel. the slopes -1/2 and -1/2.
12) perpendicular. the slopes 5/1 and -1/5.
16) parallel. special case. all points that have x=4 and x=2. these are 2 vertical lines (parallel to the y-axis also known as x=0).
17) perpendicular. special cases. all points that have y=2 and all points that have x=5. this is one horizontal line and one vertical line, which makes them perpendicular.
Answer:
1/15,1/14,1/13
Step-by-step explanation:
the total number of pool balls decrease as you try and pick all 3 balls one after the other
in other word ur probability gets bigger as you pull each ball.
hope this helps