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maxonik [38]
2 years ago
13

How many pennies are on the nth square? 2n 2n â€"" 1 2n 1 2n â€"" 1 2n 1.

Mathematics
1 answer:
Olenka [21]2 years ago
4 0

The number of pennies is an illustration of pattern and sequence.

The number of pennies in the nth square is 2^{n-1

From the complete question, we have the following parameters

f(1) =1

f(2) =2

f(3) =4

f(4) =8

Rewrite the functions as follows:

f(1) = 2^0

f(2) = 2^1

f(3) = 2^2

f(4) = 2^3

Express 3 as 4 - 1

f(4) = 2^{4-1

Replace 4 with n

f(n) = 2^{n-1

Hence, the number of pennies in the nth square is 2^{n-1

Read more about pattern and sequence at:

brainly.com/question/24655254

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Write the equation of the line that passes through the points (-6,5) and (3,−5). Put your answer in fully reduced point-slope fo
elena55 [62]

Answer:

\displaystyle y-5=-\frac{10}{9}(x+6)

Or:

\displaystyle y+5=-\frac{10}{9}(x-3)

Step-by-step explanation:

We want to write the equation of a line that passes through the points (-6, 5) and (3, -5) in point-slope form.

Point-slope form is given by:

y-y_1=m(x-x_1)

Thus, first, we need to find the slope. We can use the slope formula:

\displaystyle m=\frac{\Delta y}{\Delta x}=\frac{(-5)-(5)}{(3)-(-6)}=\frac{-10}{9}=-\frac{10}{9}

Next, we can use either of the two given points. I'll use (-6, 5). So, let (-6, 5) be (<em>x₁, y₁</em>). Substitute:

\displaystyle y-(5)=-\frac{10}{9}(x-(-6))

Or, fully simplified:

\displaystyle y-5=\frac{-10}{9}(x+6)

Using the other point, we will acquire:

\displaystyle y-(-5)=-\frac{10}{9}(x-(3))

Or, simplified:

\displaystyle y+5=-\frac{10}{9}(x-3)

8 0
2 years ago
What number must be added to 15,-6, and 12 to have a mean of 5? Explain.
Genrish500 [490]

You need to add a -1

We can find this by setting up the equation like so

x + (-6) + 12 + 15 / 4 = 5

x + 21 = 20

x = 20 -21

x = -1

Now if we insert -1 where x is located in the equation, you will get a means of 5

3 0
3 years ago
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andre [41]

Answer:

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Step-by-step explanation:

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3 years ago
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NNADVOKAT [17]
Here the slope is 2/6
8 0
3 years ago
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Step-by-step explanation:


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3 years ago
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