The time of a pendulum varies as the square root of its length. If the length if a pendulum which beats 15seconds is 9cm, find the length that beats 80seconds and the time of a pendulum with length 36cm

Answers

Answer 1

Answer:

length= 3.7 ft.

Step-by-step explanation:

T= (square root of length) * k

1.8 seconds = (square root of 3) * k

k= 1.8 seconds / (square root of 3)

a.) T= (square root of 11) k

substituting k:

T=(square root of 11) * 1.8 seconds / (square of 3)

T= 3.4 seconds

b.) 2 seconds = (square root of length) k

substituting k:

2 seconds =(square root of length) 1.8 seconds / (square root of 3)

Divide the equation by 1.8 seconds / (square root of 3):

2 seconds / [1.8 seconds / (square root of 3)] = (square root of length)

10(square root of 3) / 9 = (square root of length)

square both sides:

100/7 ft= length

length= 3.7 ft.

Hope this helps.


Related Questions

A country's budget had a surplus of $250 billion in the year 2000. in 2004 , the budget had $447 billion. fund the difference between these amounts

Answers

Answer: $197 Billion

Step-by-step explanation: To find the difference between the two amounts, you simply subtract them! In this case, 447 - 250 = 197. Hope this helps!

What is the common difference for this arithmetic sequence?
31, 48, 65, 82, ...

Answers

Answer:

d = 17

Step-by-step explanation:

The given arithmetic sequence is :

31, 48, 65, 82, ...

We need to find the common difference for this sequence.

First term, a₁ = 31

Second term, a₂ = 48

Common difference = a₂-a₁

= 48-31

= 17

So, the common difference for this arithmetic sequence is equal to 17.

please help me please i really need help please

Answers

It is the last choice. 4 teams with a total of 24 players

Answer:

There are a total of 24 players and 4 teams.

Please let me have brainliest :)

. The industrial output of an automobile factory increases by 5% of what it had been in the beginning of
every year. Find the production after 3 years, if the factory turns out 80000 units this year.

Answers

Answer = 92,610

If the factor increases output by 5% yearly than the end output will be 92,610

Which ordered pair best represents the coordinates of
a point that could be the third vertex of the right
triangle?
A (5,-5)
B (-4,6)
© (-3,-6)
D (3,4)
PLS HURRY I HAVE A TEST

Answers

A because you have to have one equal positive and negative

Solve the inequality: -3x - 22 > 23

Answers

Answer:x<-15

Step-by-step explanation:

15 points and brainliest! Solve for x. 7x + 3 = 17

A: x= 2

B: x=7

C: x=20

D: x=27

Answers

Answer:

Its A

Step-by-step explanation:

7x + 3 =17

            -3  ( 17 -3 = 14)

7x =  14.  (14 divided by 7)

u get x=2

Based on her recipe, Elena knows that 5 servings of granola have 1,750 calories. If she eats 2 servings of granola, how many calories does she eat? *

Answers

Answer:

5 / 1750 = 2 / x

5x = 3,500

x = 700

 

Step-by-step explanation:

Every two servings she eats, she eats 700 calories

Calculate the speed of a car traveling a total distance of 60 meters in 4 seconds. pls help will give brainliest

Answers

Answer:

15 meters per second

Step-by-step explanation:

60/4 = 15

Answer:

15 meters per second

PLEASE HELP!!!!!
provide the value of the polynomial P(x)=8x2-9x+12 at x=-3.

Answers

Answer:

111

Step-by-step explanation:

Answer:

x3−8x2+19x−12 = (x−1)(x−3)(x−4)

Step-by-step explanation:

Welcome =D

Find QUS, given the following sets:
P = {b, d, f, g}
Q = {a, b, c, d]
R = {c, e, f, g}
S = {a, d, g}

Answers

Answer:

Q=(a,b,c,d)

S=(a,d,g)

QUS=(a,b,c,d,g) Union of set means all the elements in both set.

Help with this work please.

Answers

Answer: x= 10, y= 13. i dont know for sure so i'd wait for someone else to answer

Answer:

x = 12

y = 13

Step-by-step explanation:

by pythagoras theorem

x²=20²-16²

x²=400-256

x²=144

x=12

y²=x²+5²

y²=12²+5²

y²=144+25

y²=169

y=13

Add the polynomials: (3x+3x2-4x+5) + (x3-2x2+x-4)​

Answers

Answer......

x^2+3x+1

Answer:

The answer is x^2+3x+1

Step-by-step explanation:

1. Given the triangle below, what is the value of sin 8
?
12
6

65

Answers

Answer:

2

Step-by-step explanation:

bc

Answer:

(2/5)√5

Step-by-step explanation:

from the sine rule (see attached for reference), we can construct the following relationship

12/sinθ  = (6√5) / sin 90°

recall that sin 90° = 1, hence our equation becomes:

12/sinθ  = (6√5) / 1

12/sinθ  = (6√5)   (rearranging)

12 ÷ (6√5)  = sin θ

sin θ = 12 / (6√5)

sin θ = 2 / √5   (moving radical to numerator by multiplying by √5/√5)

= 2 / √5     x     √5/√5

= 2√5 / 5

= (2/5)√5

Evaluate the expression when x=4 and y+-6.

x-5y

Answers

Answer:-26

Step-by-step explanation:

What is 4 + 200039393939

Answers

Answer:

200039393943

Step-by-step explanation:

Use a calculator (;

I really need to know theese and rhe rest plsss

Answers

Answer:

10.45?

Step-by-step explanation:

Answer:

5.05

Step-by-step explanation:

-2.7+7.75

2.7 is how much he descends so its negative

And 7.75 for how much he went up so its positive

The price of a four-star dinner was $100 two decades ago. A report says that a dinner is 250% of what it was 20 years ago, how much would it be

Answers

wheoemslaowoaaueiedrs

Use the Distributive Property to simplify the expression.
8(12+a)

Answers

[tex]\huge\boxed{\bf{Hi\:there!}}[/tex]

All we have to do to simplify this expression is multiply 8 by 12 and a:

8(12+a)

96+8a

That's our final answer.

[tex]\huge\boxed{\bold{Hope\:it\:helps!\:Good\:luck!}}[/tex]

[tex]\huge\mathfrak{LoveLastsAllEternity}[/tex]

The distributive property is defined as:

a x (b + c) = a x b + a x c

a x (b - c) = a x b - a x c

The final value of the expression 8 x (12 + a) after simplification using the distributive property is 96 + 8a.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

8(12 + a)

We will apply the distributive property.

The distributive property is defined as:

a x (b + c) = a x b + a x c

a x (b - c) = a x b - a x c

Now,

8 x (12 + a ) is in the form of a x (b + c)

So,

8 x (12 + a)

= 8 x 12 + 8 x a

= 96 + 8a

Thus,

The final value of the expression 8 x (12 + a) after simplification using the distributive property is 96 + 8a.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

Mr Harris had a piece of rope that measured 10 feet. He cut it into 15 equal pieces. How long was each piece?​

Answers

Answer:

I think that it is 8 inches

Step-by-step explanation:

I multiplied 10 times 12 because there is 12 inches in a foot. Then I divided 120 by 8.

I hope this is right

1 hr=3.6 ×10^3 seconds
1 day =24 hrs
1 year =3.65 ×10^2days
use scientific notation to calculate the number of seconds in 3 days​

Answers

Answer:

1 Year = 8.76 x 10³ Hours


Tropical islands have many rainstorms during the afternoon heat. One particular tropical island has a 79% chance of a
rainstorm on any given afternoon. Abraham is planning a weeklong stay on this tropical island. Let X represent the
number of days there is an afternoon tropical storm that week. What are the mean and standard deviation of X?
O v. = 1.47,0, = 1.16
Own=3.5, 0x = 1.16
Oy.=5.53.0. = 1.08
O x =7,0, = 3.5

Answers

Answer:

C

Step-by-step explanation:

I got it right on Edge.

help plz
can someone simplify 3 to the power of 2 times 3 to the power of 3

Answers

Answer:

(9)(27) also 243

Step-by-step explanation:

So, 3^2=9, and 3^3=27, so (3^2)(3^3) is equal to (9)(27) or 243

Kyle wants to wrap the box in wrapping paper.

A rectangular prism with a length of 18 inches, width of 6 inches, and height of 3 inches.
What is the minimum amount of paper needed to cover the entire box?
180 inches squared
324 inches squared
360 inches squared
648 inches squared

Answers

Answer: 360 in. squared

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

I did it and got it right

2.' Which number has more factors: 125 or 200?

Answers

Answer:

200

Step-by-step explanation:

factors of 125 are 1, 5, 25, 125

factors of 200 are 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100 and 200.

Based on the number of factors of the two numbers, the number with more factors is 200.

The factors of 125 are:

1525125

The factors of 200 are:

1245810254050100200

The factors of 200 are 12 in total while that of 125 are only 4.

In conclusion, 200 has more factors than 125.

Find out more about factors at https://brainly.com/question/596862.

Round 8265 to the nearest ten?

Answers

8270



Step by step explanation:

The list of numbers 41, 35, 30, X, Y, 15 has a median of 25. The mode of the list of numbers is 15. To the nearest whole number, what is the mean od the list?

Answers

Answer:

1.2

Step-by-step explanation:

1.Arrange the numbers in order by size.

15,20,25,30,35,41

2.If there is an odd number of terms, the median is the center term.

with these numbers they are even (6 numbers total)

3.If there is an even number of terms, add the two middle terms and divide by 2.

30 ÷ 25=1.2

what is 656 ÷ 4
we need to know how to solve this equation.​

Answers

Answer: 164

Step-by-step explanation:  656 /4

164

Simplify (3x - 5) - (4x + 6).
-X + 11
x + 11
-X-11
x- 11

Answers

Answer: The given expression (3x − 5) − (4x + 6) =  -x - 11.

Step-by-step explanation:

Given : Expression (3x − 5) − (4x + 6).

We have to simplify the given expression.

Consider the given expression (3x − 5) − (4x + 6).

Remove Parentheses ,

we have,

(3x − 5) − (4x + 6) = 3x - 5 - 4x -6

Combining like terms, we have,

LIKE TERMS are terms having same variable with same degree.

here 3x and -4x are like term  and -5 and -6 are like terms,

Simplify, we have,

= 3x - 4x - 5 - 6

= -x - 11

Thus, the given expression (3x − 5) − (4x + 6) =  -x - 11.

Step-by-step explanation:

hope this helps have a nice day❤️❤️❤️❤️

Answer: The given expression (3x − 5) − (4x + 6) =  -x - 11.

Step-by-step explanation:

Given : Expression (3x − 5) − (4x + 6).

We have to simplify the given expression.

Consider the given expression (3x − 5) − (4x + 6).

Remove Parentheses ,

we have,

(3x − 5) − (4x + 6) = 3x - 5 - 4x -6

Combining like terms, we have,

LIKE TERMS are terms having same variable with same degree.

here 3x and -4x are like term  and -5 and -6 are like terms,

Simplify, we have,

= 3x - 4x - 5 - 6

= -x - 11

Thus, the given expression (3x − 5) − (4x + 6) =  -x - 11.

Step-by-step explanation:

hope this helps have a nice day and god bless u ❤️❤️❤️❤️

which inequality is the solution to 20+2

Answers

Answer:

is there supposed to be answer choices?

Step-by-step explanation:

Answer:

2.11

Step-by-step explanation:

In order to factor an integer, we need to repeatedly divide it by the ascending sequence of primes (2, 3, 5...).

The number of times that each prime divides the original integer becomes its exponent in the final result.

In our example,

    Prime number  to the power of  equals .

    Prime number  to the power of  equals .

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