Given:
Two endpoints of a diameter of a circle:
P (-7, -10)
Q (3, 2)
a) To find the center of the circle, find the midpoint of the two points:
midpoint:
(x2 - x1 )/ 2 , (y2 - y1) / 2
x= (2 - (-7))/2 = 4.5
y= (3 - (-10))/2 = 6.5
Therefore, the center of the circle is at C(4.5, 6.5)
b) To find the radius of the circle, we need to find the distance between the two points and divide by 2.
d = √(y2-y1)^2 + (x2 - x1)^2
d = √(2-(-7))^2 + (3 - (-10))^2
d = 5√10 = diameter
r = d/2 = 5√10 /2
Answer:
C
Step-by-step explanation:
The difference between that numbers is 4 so it's going to be in the 4 nth term
now 4x1 = 4
to get from 4 to -3 you need to - 7 and hence you get the nth term 4n-7
Answer:
-12
Step-by-step explanation:
use a number line go back 8 spaces from 19 and back from negative 4
1 red bead for every 4 blue beads. The first ratio in the strand would go blue, red, red, red, red. That is five beads. 40/5 = 8. So for eight strands she would need 8 red beads, and 32 blue beads or vice versa, depending on which color comes first in the ratio.
Hope this helped, sorry if it was wrong.
It’s already in standard form: 93,000,000
If we would put it in scientific notation though, it would be: 9.3 x10 ^7 (to the power of 7)