1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
galben [10]
2 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 about the same amount of time, about 2.2 seconds. Use the pendulum formula below to find out how long the swing is. Round your answer to the tenths place.T = 2pie radical L/32
Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
8 0

Answer:

3.9 units

Step-by-step explanation:

We are given that,

Time taken by each swing = 2.2 seconds

The pendulum formula is given by, T = 2\pi \sqrt{\frac{L}{32}}, where T is the time taken and L is the length of the swing.

So, we have,

2.2= 2\pi \sqrt{\frac{L}{32}}

i.e. \frac{2.2}{2\pi}=\sqrt{\frac{L}{32}}

i.e. (\frac{2.2}{2\pi})^{2}=\frac{L}{32}

i.e. L=32\times (\frac{2.2}{2\pi})^{2}

i.e. L=32\times \frac{4.84}{4 \pi^2}

i.e. L=32\times \frac{1.21}{\pi^2}

i.e. L=\frac{38.72}{9.87}

i.e. L = 3.923 units

So, rounded to tenths, the length of the swing is 3.9 units.

You might be interested in
A triangular frame has sides that measure 15'-7",20'-4" and 26'-2". What is the total length of three sides?
tatuchka [14]

we know that

1\ foot=12\ inches

1'=12"

<u>Part 1) </u>

we know that

side 1=15'-7"

side 2=20'-4"

side 3=26'-2"

To find the total length of three sides sum the three sides

so

total length=side 1+side 2 +side 3

substitute

total length=15'-7"+20'-4"+26'-2"

total length=(15'+20'+26')+(7"+4"+2")

total length=(61')+(13")

remember that

12"=1'

13"=12"+1"=1'+1"

substitute

total length=(61')+(1'+1")

total length=(62')+(1")---------> 62'-1"

therefore

<u>the answer is</u>

the total length of three sides is 62'-1"

5 0
3 years ago
54 is 60% of what number? Enter your answer in the box. <br><br><br> PLZ HELP I WILL GIVE BRAINLIEST
ivolga24 [154]

Answer:

90

Step-by-step explanation:

you do 54 ÷ 60% = 90

check:

60% of 90 is 54 .

can I have brainliest.

5 0
3 years ago
The store buys a vase for $25. The vase sells for $55. What is the markup on the vase?
Hatshy [7]

Answer:

The answer is $30

Step-by-step explanation:

Markup refers to the amount added to the cost price of goods to cover overhead and profit.

The vase was bought for $25, then is now selling for $55

$55-$25=$30

hope this helps please mark brainliest :)

4 0
2 years ago
Read 2 more answers
A cactus casts a shadow 33 feet long. At the same time of day,Liam,who is 6 feet tall,casts a shadow 9 feet long,as shown. What
Art [367]

Answer:

If x = 2, y = 6, and z = 4, which expression is equivalent to 4? à 54+0-3+2=4. D Xtra 4 ... A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby.

4 0
2 years ago
Refer to the diagram below.<br> If m
Debora [2.8K]
The correct answer is 85
4 0
3 years ago
Other questions:
  • Using the information below, choose the correct answers.
    5·1 answer
  • Which statements are true?
    13·2 answers
  • An experimenter wants to estimate the average water consumption per family in a city. Discuss the relative merits of choosing in
    9·1 answer
  • Find the lateral area for the pyramid with the equilateral base.
    12·2 answers
  • Please HELP best answer will receive a BRAINLIEST. Given the probability density function f ( x ) = 1/3 over the interval [ 4 ,
    7·1 answer
  • Where it cuts off it says renting. Please help me.
    5·1 answer
  • Which pair of figures has the same number of faces as vertices
    8·1 answer
  • If we have a conversion factor given to us in a fraction form that cannot be represented as an easy decimal, what can we do?
    12·2 answers
  • I need help with b. I am having a brain fart and forgot how to do this!​
    12·1 answer
  • HELP ME PLEASE HELP ME
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!