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Katen [24]
4 years ago
12

Emma conducted an experiment in which she rolled a six-sided, fair number cube 300 times. How many times would you predict she r

olled a 6?
Mathematics
2 answers:
anygoal [31]4 years ago
7 0
50 because there are 6 sides and 300 roles, if its equal of course. ;)!
Zina [86]4 years ago
4 0

A number cube has six sides. The probability of landing on any of the numbers is equal. The theoretical probability of rolling a 6 is 1/6. I expect a 6 to be rolled (1/6)(300), or 50 of 300 times

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Two airport shuttle trains leave the main station at the same time. Shuttle A returns to the station every 8 minutes. Shuttle B
IgorC [24]
The answer is C. 40 minutes
8 0
4 years ago
I need help again, please.
vekshin1

I hope this helps you...

6 0
4 years ago
Simplify the expression. 3(2y - 8) - 2y(5 - y)
seraphim [82]

Answer:

\boxed{\bold{2y^2-4y-24}}

Step By Step Explanation:

Expand \bold{3\left(2y-8\right): \ 6y-24}

\bold{6y-24-2y\left(5-y\right)}

Expand \bold{-2y\left(5-y\right): \ -10y+2y^2}

\bold{6y-24-10y+2y^2}

Simplify \bold{6y-24-10y+2y^2}

\bold{2y^2-4y-24}

7 0
3 years ago
the function below represents the number of zombies, N, where t is the number of years since the zombies gained control of earth
raketka [301]
There is missing information about this question that I found online.
Given function is:
N(t) = 300\cdot 2^{-\frac{t}{8}}
The question is:
<span>Is this exponential growth or decay? Explain using your understanding of the properties of exponents.
</span>This is an exponential decay. 
In general, we can write down exponential functions like this:
f(x)=b^{ax}
Parameter a is the key parameter that will tell how exponential function behaves. If it is positive we have an exponential growth. If it is negative we can rewrite function like this:
f(x)=b^{-ax}=\frac{1}{b^{ax}}
We can notice that in this case, the denominator will exhibit exponential growth, in other words, the functions rapidly declines. This is an exponential decay.
5 0
4 years ago
Read 2 more answers
a rectangular dog kennel is to be constructed alongside a house with 60m of fencing. If the house serves as one side of the kenn
Basile [38]

Answer:

450\text{ m}^2.

Step-by-step explanation:

Let x represent side of kennel opposite to house and y represent other sides.

We have been given that a rectangular dog kennel is to be constructed alongside a house with 60 m of fencing.

Since fencing will cover 3 sides of kennel, so perimeter of kennel would be:

x+y+y=60

x+2y=60

Let us solve for x.

x+2y-2y=60-2y

x=60-2y

The area of the kennel would be product of its sides that is:

\text{Area}=x\cdot y

Now, we will substitute x=60-2y in area equation as:

A(y)=(60-2y)\cdot y

A(y)=60y-2y^2

Let us find the derivative as shown below:

A'(y)=60-4y

Now, we will set derivative equal to 0 and solve for y.

60-4y=0

60=4y

\frac{60}{4}=\frac{4y}{4}

y=15

Upon substituting y=15 in area function, we will greatest possible area.

A(y)=60y-2y^2

A(15)=60(15)-2(15)^2

A(15)=900-2(225)

A(15)=900-450

A(y)=450

Therefore, the greatest possible area that can be enclosed by 60 m of fencing is 450 square meters.

5 0
3 years ago
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