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arlik [135]
3 years ago
7

Once a week you babysit your neighbor’s toddler after school, usually going to a local playground. You notice that each swing on

the swing set takes nearly the same amount of time, about 2.7 seconds. Use the pendulum formula below to find out how long the swing is. Round your answer to the tenths place.
Mathematics
1 answer:
mel-nik [20]3 years ago
7 0
You didn't include the formula.

Given that there is no data about the mass, I will suppose that the formula is that of the simple pendulum (which is only valid if the mass is negligible).

Any way my idea is to teach you how to use the formula and you can apply the procedure to the real formula that the problem incorporates.

Simple pendulum formula:

Period = 2π √(L/g)

Square both sides

Period^2 = (2π)^2 L/g

L = [Period / 2π)^2 * g

Period = 3.1 s
2π ≈ 6.28
g ≈ 10 m/s^2

L = [3.1s/6.28]^2 * 10m/s^2 =2.43 m

Hope this helps you!!!!

<span><em>Ps: Please mark brainliest!!!! I am only a few away from ranking up, it would help a lot, and I will make a shoutout for you!! </em></span>


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C= 5/9 (F−32)
Grace [21]

Answer:

C = 5/9 (F - 32)

This is a temperature scale change comparison.

By this we understand, that ,

1°C = 5/9°F

Which is equal to, 5/9°F = 1°C

These two statements are satisfied by I. and II.

So, the correct answers are, I. and II.

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5 0
2 years ago
Shelley's pet food store sold one customer 5 peanut butter biscuits for $3. She sold another customer 7 beef treats for $4.20. W
arsen [322]

Given that,

Shelley's pet food store sold one customer 5 peanut butter biscuits for $3. She sold another customer 7 beef treats for $4.20.

For peanut, the cost is ratio is

\dfrac{5}{3}

For beef, the ratio is

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If we take cross product of these items,

\dfrac{5}{3}=\dfrac{7}{4.2}\\\\5\times 4.2=3\times 7\\\\21=21

It implies, that the sale is in true proportion. From the cross product, we find that it is equal.

7 0
2 years ago
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Lexi had 300 apples in her basket to sell if she dropped 122 apples on the ground she can't use them and sell them, and then aft
Andrew [12]

Answer:she has 120 apples left.

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Total number of apples that Lexi had in her basket to sell is 300.

If she dropped 122 apples on the ground because she can't use them and sell them, then the number of apples that she has left for sale is

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If then after she sells 58 apples, the number of apples that she has remaining would be

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4 0
3 years ago
I need to know the sum of -3/5+(-2/3)
adoni [48]

Answer:

1 4/15

That's what i think!

good luck :)

5 0
2 years ago
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kompoz [17]

Answer:

24 feet

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First, I used the proportion method to set up the numbers. I used x for the height of the tree.

x/45 = 6/11.25

Notice that the x and the 6 are both the heights of the tree and Dimitri and that they are both on the top of the fractions.

45 and 11.25 are the lengths of the shadows and they are both on the bottom of the fractions.

Next, I did 6 times 45 and got 270. Then I did 270 divided by 11.25 and got 24.

You're welcome!     :)

8 0
3 years ago
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