Answer:
1269
Step-by-step explanation:
convert and add
Answer:
1.5 hours
Step-by-step explanation:
there are 6 hours in between the times of 4 and 10
so 4 sister split up 6 hours equally
to do this, we divide 6 and 4
6/4 = 1.5 hours
each sister can spend 1.5 hours on the computer
Answer:
B
Step-by-step explanation:
B is correct because it includes 5 and everything higher than that. There needs to be at least 5 more people signing up, and this number line is the only one that shows that, since it includes 5 and more.
Answer:
the equation of the circle is
Step-by-step explanation:
Recall that the equation of a circle is given by 
where r is the radius, and (h,k) is the center. Recall that given two points that are the endpoints of a diameter, the center of the circle is their correspondent midpoint. Also, recall that given points (a,b), (c,d) their midpoint is obtained by 
In this case we are given the endpoints (-1,-9), (5,1). So the center of the circle is the midpoint obtained by 
. Recall that the radius of a circle is the distance from the radius to any of the points of the circle. So, the radius is the distance between the center and the point (-1,-9). We will calculate r^2, by using the distance formula. REcall that the distance between points (a,b), (c,d) is given by
![\sqrt[]{(a-c)^2+(b-d)^2}](https://tex.z-dn.net/?f=%5Csqrt%5B%5D%7B%28a-c%29%5E2%2B%28b-d%29%5E2%7D)
. So, its square is
.
In our case,
So, the equation of the circle is
First find the unit rate which is 12 dollars per hour than times that with 12 and you will get $144 dollars for 12 hours of work
