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
Sidana [21]
2 years ago
5

Find the least length of a rope which can be cut into whole number of pieces of lengths 45cm, 75cm and 81 cm

Mathematics
1 answer:
choli [55]2 years ago
5 0
The least is 45 bc it is less than the other 2
You might be interested in
Researchers report that on average freshman who live on campus gain 15 pounds during their first year in college. You survey 10
neonofarm [45]

Answer: 1.460

Step-by-step explanation:

Given : Researchers report that on average freshman who live on campus gain 15 pounds during their first year in college.

Let \mu represents the population mean .

Then, the set of hypothesis will be:-

H_0: \mu=15

H_a:\mu\neq15

We assume that this is normal distribution.

Sample size : n = 10, which is a small sample (n<30) ,s o we use t-test.

Sample mean : \overliene{x}=16.2\ lbs

Standard deviation : \sigma=2.6

The test statistic for population mean for small sample is given by :-

t=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

t=\dfrac{16.2-15}{\dfrac{2.6}{\sqrt{10}}}=1.45951276623\approx1.460

Hence , the value of test statistic = 1.460

4 0
2 years ago
A group of n people enter an elevator in a building with k floors. Each person independently selects a floor uniformly at random
____ [38]

Answer:

Hence the person stop at floor by at least one person will be

E(X)=(summation from K=1 to k)[1-{(k-1)/k}^n]

Step-by-step explanation:

Given:

There are n peoples and k floors in a building.

Selects floor with 1/k probability .

To find :

Elevator stop at each floor by at least one person.

Solution:

Now

let K= number of floor at which at least one person will be stopping.

For getting E(X)

consider a variable Ak =1 if a least one person get of the elevator

and values for k=1,2,3.....k

K=(summation From k=1 to k)Ak

E(K)=((summation From k=1 to k) E[Ak]

=(summation From k=1 to k)[1-{(k-1/k)^n

Hence the person stop at floor by at least one person will be

E(K)=(summation from K=1 to k)[1-{(k-1)/k}^n]

4 0
3 years ago
URGENT PLEASE HELP ME!!!!
lisabon 2012 [21]

Answer:

Step-by-step explanation:

Is A) median for town A is 30 which is less than for a town B, 40.

3 0
3 years ago
Read 2 more answers
The least common multiple of 9 and 42 through prime factorization?
LUCKY_DIMON [66]

Answer:

3

Step-by-step explanation:

9= 3*3

42=3*7*2

7 0
2 years ago
Ashley owns a food truck that sells tacos and burritos. She sells each taco for $3 and
aliya0001 [1]

Answer:

3t + 5.25b ≥ 340

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Find the value of x so that the line that passes through the points A(5,x) and B(2,-3) has a slope of 5/3
    9·1 answer
  • Tracy has a dozen doughnuts. julius gives her 6 more. tracy and julius then eat a of 3 doughnuts.
    11·2 answers
  • The complement of an angle is one-fourth the measure of the supplement of the angle. What is the measure of the angle to the nea
    12·1 answer
  • While finding the mass of an unknown substance using a triple beam balance, Raquel forgets to subtract the mass of the pan holdi
    9·1 answer
  • HEEEEEELLPPP PPPLLLZZ T^T
    14·2 answers
  • Rearrange the formula v= u + at to make a the subject​
    12·2 answers
  • What are the x-intercepts of this quadratic function?<br> g(x) = -2(x - 4)(x + 1)
    11·1 answer
  • Help me with this please
    13·1 answer
  • In how many ways can you make exactly $0.75 using only nickels, dimes, and quarters, if you must have at least one of each
    15·1 answer
  • Prove De Morgan's law by showing that each side is a subset of the other side by considering x ∈ A⎯⎯⎯ A ¯ ∩ B⎯⎯⎯ B ¯ .
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!