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zepelin [54]
3 years ago
10

Tell me both like what should i say in the sentence please ​

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0
1 is yes and 2 is no epa
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Find the volume of the cone. Use the symbol pi in the calculator Round to the tenths
Tanya [424]

Answer:

209.4 mm³

Step-by-step explanation:

V = (πr²h)/3

V = (200π)/3

Plug it into a calculator to get  209.4.

6 0
3 years ago
4 - -9
Svetradugi [14.3K]

Answer:

13

Step-by-step explanation:

a negative plus a negative makes a positive

3 0
2 years ago
What is the probability of selection for any man in a proportionate random sample, where a sample of 100 will be drawn from a po
kolbaska11 [484]
Working Principle: Stratified Random Sampling

nx = (Nx/N)*n

where:
    nx = sample size for stratum x
    Nx = population size for stratum x
    N = total population size 
    n = total sample size

Given:

  Nx = 100
  N = 1000
  n = 0.5*(1000) = 500

Required: Probability of Man to be selected

Solution:

nx = (Nx/N)*n
nx = (100/1000)*500 = 50 men

ny = (Nx/N)*n
ny = (100/1000)*500 = 50 women


Probability of Man to be selected = nx/(nx + ny)*100 = 50/(50+50)*100 = 50%

<em>ANSWER: 50%</em>
7 0
3 years ago
How i did? In livada sunt 12 mere am cules 6. Cate mera au ramas?
vovikov84 [41]

Answer:

72

Step-by-step explanation:

12x6=72

7 0
2 years ago
The sum of 2 numbers is 50. The sum of 1/4 of the first number and 2/3 of the second number is 25.What are the numbers?
tino4ka555 [31]

Answer:

First number: 20

Second number: 30

Step-by-step explanation:

First#:   x

Second#:   y

Constraints:

   x + y = 50      

   1/4x + 2/3y = 25

Isolate variable y:

   x + y = 50    

  -1/4 (x + y = 50 )

 -1/4x - 1/4y = -12.5

  Add equations the two equations to eliminate x:

    -1/4x - 1/4y = -12.5

     1/4x + 2/3y = 25

  _________________

       5/12y = 12.5

           5y = 150

              y = 30

Substitution to find x:

       x + y = 50  

       x + 30 = 50

              x = 20

6 0
2 years ago
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