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The drawing below (not to scale) shows a running track. The ends are semicircles. The distance between the two inner parallel st

aleksklad [387]

We are looking for the inner perimeter of the track. Since there are two semicircles, these mix to form one full circle so we can use the formula to find the circumference of the circle with a diameter of 60 m, which was given to us. With a diameter of 60m, the radius will be 30m. Now we can solve this problem.
C = 2πr
C = 2π(30)
C = 60π
The semicircle ends of the track are a distance of 60π m, and now we just need to add the lengths of the inner track which are 100 m each. So:
P = 60π + 100m + 100m
P = 200 + 60π
P = 388.5 m

4 0

3 years ago

Bone strength, gives the bone strengths of the dominant and the nondominant arms for 15 men who were controls in a study.

faust18 [17]

Answer:

Follows are the solution is this query:

Step-by-step explanation:

In point a:

The explicatory variable mostly on X-axis is obtained only at the two-dimensional level or the Y-axis dependent variables, instead of catching the information, they also get diffusion plotted in the attached file please find it.

In point b:

Draw on the scatter diagram as just below the minimum-square correlation axis, which is defined in the attached file please find it.

In point c:

From the plot above, a positive relationship among even in the analysis of bone density, the dominant and non-dominant Arm. They can forecast its bone using bone density throughout the non-dominant arm and the Dominant arm power. They can conclude from the slopes of its regression model, which is inside a non-dominant arm, each unit raises bone strength by 0.936 throughout the dominant atm.