Which equation would be a circle with a center at 2,-3 and contains the point 9,-3 distance formula

(x - 2)^2 + (y + 3)^2 = 49.

Step-by-step explanation:

The circle will have the equation:

(x - 2)^2 + (x + 3)^2 = r^2 where r = the radius and  (2,-3) is the center..

To find r^2 we use the distance formula ( the radius is the distance between the center and the point (9,-3):

r^2 =  ( 9 - 2)^2 + ( -3 - (-3)^2

r ^2 =  7^2 + 0^2

r^2 =  49.

The answer is (x - 2)^2 + (y + 3)^2 = 49.

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,