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Ratling [72]
3 years ago
13

Plz help with good answer dont answer saying "I think or " im sorry"

Mathematics
1 answer:
STatiana [176]3 years ago
5 0

r= 9 because 45/5 is 9 and it works the same way for the rest of the problems.

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#1
Delicious77 [7]
The requested equation is


C(m) = 7.50 + 0.25*m,


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Make the plot on your own.
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3 years ago
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Which of the following expressions is equivalent to the expression x - (-3) ?
kolezko [41]
X + 3 because in math two negatives equal a positive
6 0
3 years ago
13(6x – 5) – x = 13 – 2(x + 1)
Murrr4er [49]

Answer:

x = 76/79

Hope this helped

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3 years ago
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he​ half-life for a link on a social network website is 2.6 hours. Write an exponential function T that gives the percentage of
pychu [463]

Answer:

% Remaining= [1-(1/2)^{\frac{t}{2.6}}]x100

And replacing the value t =5.5 hours we got:

% Remaining= [1-(1/2)^{\frac{5.5}{2.6}}]x100 =76.922\%

Step-by-step explanation:

Previous concepts

The half-life is defined "as the amount of time it takes a given quantity to decrease to half of its initial value. The term is most commonly used in relation to atoms undergoing radioactive decay, but can be used to describe other types of decay, whether exponential or not".

Solution to the problem

The half life model is given by the following expression:

A(t) = A_o (1/2)^{\frac{t}{h}}

Where A(t) represent the amount after t hours.

A_o represent the initial amount

t the number of hours

h=2.6 hours the half life

And we want to estimate the % after 5.5 hours. On this case we can begin finding the amount after 5.5 hours like this:

A(5.5) = A_o (1/2)^{\frac{5.5}{2.6}}

Now in order to find the percentage relative to the initial amount w can use the definition of relative change like this:

% Remaining = \frac{|A_o - A_o(1/2)^{\frac{5.5}{2.6}}|}{A_o} x100

We can take common factor A_o and we got:

% Remaining= [1-(1/2)^{\frac{t}{2.6}}]x100

And replacing the value t =5.5 hours we got:

% Remaining = [1-(1/2)^{\frac{5.5}{2.6}}]x100 =76.922\%

5 0
4 years ago
A coin is flipped five times. Find the number of possible sets of heads and tails that have 0 heads.
Fudgin [204]

Answer:

I think it’s C

Step-by-step explanation:

5 0
4 years ago
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