Answer: 144 cubic feet
Step-by-step explanation:
Volume = base times height.
Base = 20 square feet
Height = 7.2 feet
Volume = 20 square feet * 7.2 feet = 144 cubic feet
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Step-by-step explanation:eeeeeeeeeeeeeeeeeeeeeeeeee
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Answer:
D.
Step-by-step explanation:
4 x (26 + 72) is 4 time more than the expression of 26 + 72
Answer :
That’s it, the probability of getting tail on a single coin toss times the number of observations.
In this case, 1/2 * 72 = 36
However, there’s something called chance error. How much do you expect the result to differ from the expected value? It can be calculated as follows:
The Standard Deviation of this experiment is √(0.5)(0.5) =0.5
The Standard Error is √72 (0.5) ≈ 4.18330 round to the nearst tenth is 4
So, the expected value is 36, give or take 4.
And since the number of tails in a toss coin experiment is normally distributed, then you can expect the number of tails to be between -2 and +2 SEs from the expected value 95% of the time.
In other words, if you repeat this experiment a large number of times, you can expect to obtain between 27 and 43 tails 95% of the time.
Hope this helps
Answer:

Step-by-step explanation:
Hi there!
We want to solve for
in:

Since
is in the argument of
, let's first isolate
by dividing both sides by 4:

Next, recall that
is just shorthand notation for
. Therefore, take the square root of both sides:

Simplify using
:

Let
.
<h3><u>Case 1 (positive root):</u></h3>

Therefore, we have:

<h3><u>Case 2 (negative root):</u></h3>
