Answer:
A.
Elena can run 3 miles per hour.
Step-by-step explanation:
Given that:
a circular running track = 1/5 mile
On this track, Elena runs completing each of the laps in 1/15 of an hour
We are to find Elena running speed.
It implies that the distance of Elena = 
Time to run each lap = 
Speed is the amount of distance covered in a specified period of time.
Recall that the formula for calculating speed is:
Speed = 3miles / hour
As such, Elena can run 3 miles each hour.
I can’t really see your picture
Evaluate 13-0.75w+8x13−0.75w+8x13, minus, 0, point, 75, w, plus, 8, x when w=12w=12w, equals, 12 and x=\dfrac12x= 2 1 x, equal
Sergeeva-Olga [200]
For this case we have the following expression:
13-0.75w + 8x
We must evaluate for the following values:
w = 12
x = 1/2
Substituting the values we have:
13- 0.75 * (12) + 8 * (1/2) = 8
Answer:
The result after evaluating the expression is:
8
Answer:
center (-13,2) radius=9
Step-by-step explanation:
(x+13)^2+(y+2)^2=81
x=-13
y=-2
r=sq rt of 81
The closest to 13 is because 13.09≈13
