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3 years ago

1. Tree #1 has a circumference of 29.48, find the diameter. * PLZZZ HELP ME

Mathematics

1 answer:

scoray [572]3 years ago

7 0

Answer:

9.38

Step-by-step explanation:

First let's start with what we know, we know the circumference and formula to get a circumference. (Formula: C= 2 π r) We also know how to find the circumference if we have the diameter. So what if we did it backwards? What if we divided? Let's try that, 29.48 ÷ π. Notice we don't put the radius because we don't know it yet. So when we do that on a calculator, we get 9.3885350 etc. Now we need to dived That by 2. That gives us 4.694267515 etc, but we can shorten that to 4.68. We're almost there! 4.68 is the RADIUS, not the diameter. so if you have the radius, you can easily get the diameter by mulitpling by 2. 4.68 x 2, is 9.38.

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Does 4(x−8)+12=2(2x−9) have one solution, no solution, or infinitely many solutions? <br><br> ??

arsen [322]

Answer:

no solution

Step-by-step explanation:

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3 years ago

LOOK RIGHT HERE! HELP FASSST EMERGENCY! Don't go past go to this question right here and no Decimal answers plz. Thanks the answ

ArbitrLikvidat [17]

Answer: 140cm^3

Step-by-step explanation:

7 0

3 years ago

Consider the system of equations:

AVprozaik [17]

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Since, we know that in Elimination method we have to first the value of "x" or either "y". For that we have to multiply a number which makes the both equation's "x" or "y" equal so that we cut cancel it and find the solution.

Here's an example:

Like, in here

Equation 1: - 2x + 3y = 9

Equation 2: - 8x - 7y = 10

We can see that in "Equation 1" the first number is "- 2x" and in "Equation 2" the first number is "-8x". So, what we do in Elimination method is that we have to make the first number of both the equations equal or same.

Eg:

- 2x + 3y = 9.

- 8x + 7y = 10--(ii)

Now,we can see that in "Equation 2" the first number is "8x" whereas in "Equation 1" the first number is "-2x". We have to multiply with any number that makes the both the first number of equation is same.

So, I'm taking the number "4" to multiply it with equation 1, which gives us the result,

$4( - 2x + 3y) = 9 \times 4 \\ \\ \leadsto - 8x + 12y = 36$

Now, we've subtract both the equation to get the results.

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6 0

2 years ago

Express in simplest form- 56:21 Your answer

Dmitrij [34]

The simplest form of 56:21 is 8:3.

If you divide each number by 7, you would get 8:3.

Hope this helps!

4 0

3 years ago

Read 2 more answers

Please can someone help me with both questions. Thank you. Work is due tomorrow.

Mariulka [41]

So let's begin!
So the length is 25 and the entire perimeter is 106. Lets put these both of these numbers as information we know.

We know the length is 25.
We know the full perimeter is 106.
We also know a rectangle has 2 pairs of congruent sides.

Okay so, the length is 25.
Since there are two sides that are the same we would multiply 25 by 2 to get 50.

Now we know 2 sides out of the four sides on a rectangle.

106 is the final perimeter, if we subtract 50 from 106, we get 56. That is the measurement for both sides we're missing but we need to know the width for just one side.
So we divide 56 by 2 to get 28.
The width is 28.

Heres the show your work part:

25 x 2 = 50
Gets both lengths for rectangle.

106 - 50 = 56
Gets the product for the widths.

56 / 2 = 28
Gets the width of just one side.

Your final answer: 28

7 0

3 years ago