Answer:
Step-by-step explanation:
One
This is one of those exercises that the answer is ultimately "It depends." If we are talking about a trained athlete or just me running around the block. A trained athlete would carefully pace himself to have enough energy to finish. If he is not well trained, the correlation is negative. Even well trained athletes with increased time will have decreased speed. I'd say it is negative.
Two
It is causation. It is what fridges do.
Three
Another guess. It depends. People who play musical instruments do get better grades, especially if they do it well. It takes a great deal of discipline and concentration to play either the piano or violin. Correlation and causation are what is unrelated. I guess the answer is D
<h3>Given</h3>
A regular polygon with area 500 ft² and apothem 10 ft
Cost of fence is $7.95 per ft
<h3>Find</h3>
Part III The cost of fence around an area scaled to 60 times the size
<h3>Solution</h3>
You don't want to think too much about this, because if you do, you find the regular polygon has 3.087 sides. The closest approximation, an equilateral triangle, will have an area of 519.6 ft² for an apothem of 10 ft.
For similar shapes of scale factor "s", the larger shape will have an area of s² times that of the smaller one. Here, it appears the area scale factor s² is 60, so the linear scale factor is
... s² = 60
... s = √60 ≈ 7.7460
The perimeter fence of the 500 ft² area is presumed to be 100 ft long (twice the area of the polygon divided by the apothem—found in Part I), so the perimeter fence of the industrial farm is ...
... (100 ft)×7.7460 = 774.60 ft
and the cost to construct it is
... ($7.95/ft)×(774.60 ft) ≈ $6158
The radius of Earth is 6378.1 km,
which is 2981.1 km longer than the radius of Mars.
The radius of Mars is 3397 km.
Answer:
plz make it brainlisted
Step-by-step explanation:
Since the total is 300 and the ratio is 4:1,
Let us suppose the number of adults be 4x and children be x;
According to the question,
4x+x=300
or,5x=300
or,x=(300/5)
or,x=60
So, 60 students attended the show.
Hello,
D is an arithmetic sequence r=5)
C is a geometric sequence r=-1.
Answer C