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Tamiku [17]
2 years ago
7

Someone help me I don’t understand the circumference C=2TTr

Mathematics
1 answer:
Irina-Kira [14]2 years ago
4 0
You are being asked to make π the subject in

C=2πr \:

So divide both sides of the equation by
2r

That is

\frac{ C}{2r} = \frac{2πr}{2r}
The you have
\frac{ C}{2r} = \pi

or

\pi = \frac{ C}{2r}

I hope this is helpful?
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Draw two vertical lines that are parallel with a horizontal line going through then forming 90 degree angles
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Find the coordinates of the vertices of the figure after the given transformation: T<0,7>
valentina_108 [34]

Answer:

Option A.

Step-by-step explanation:

The general transformation works as follows:

T<a,b>(x, y) = (x + a, y + b)

Then for our transformation, we will have:

T<0,7>(x, y) = (x, y + 7)

So now that we know how the transformation works, we need to apply it to the vertices.

Looking at the graph we can see that the vertices are:

X = (-4, -5)

W = (-3, -3)

L = (-5, -2)

Then the new points will be:

X' = (-4, - 5 + 7) = (-4, 2)

W' = (-3, -3 + 7) = (-3, 4)

L' = (-5, -2 + 7) = (-5, 5)

Then the correct option is A.

3 0
2 years ago
On June 1st, Elena Moore deposited $610 in a savings account at Metro Savings and Loan Association. At the end of November, her
sasho [114]
I'm not good with any math that is above per algebra sorry.
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2 years ago
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7x - y = - 1 + -7x + 3y = - 25
Fittoniya [83]
Hope this helps you out :D

It’s 2 equations so in order to solve the previous system, you can use different methods, as for example substitution or addition of equations. In this case, you use the second one, due to the fact you have 7x in one equation and -7x in the other equation. In this way you can easily eliminate variable x and then solve for y. With the value of y you can replace in any of the two equations and solve for x.

7x-y=-1
-7x+3y=-25

Summarizing, you proceed as follow:
- add up the given equations

7x - y = -1

-7x+3y=-25
——————
0 +2y=-26

- solve for y in the previous equation

2y=-26
y=-26/2
y=-13


- replace the obtained value of y in one of the given equations, and solve for x

7x-(-13)=-1

7x+13=-1

7x=-1-13

7x=-14

x=-14

x=-14/7

x=-2


Hence, the solution of the given systems of equation is:

X=-2

Y=-13

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3 years ago
Can predictions be made of a scatterplot that shows no
dolphi86 [110]

Answer:

no

Step-by-step explanation:

No, you can't make a prediction from a scatter plot that doesn't show any associations. There have to be associations in order to form a trend. If there is no trend, there is no way to make a prediction. A scatter plot is similar to a line graph where you can mark the appropriate data points in order to see if a trend is developing.

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