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Anettt [7]
2 years ago
8

A robot’s height is 1 meter 20 centimeters. How tall is the robot in millimeters?

Mathematics
1 answer:
IRISSAK [1]2 years ago
6 0

Answer:

1200 millimeters

Step-by-step explanation:

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You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on con
Naddika [18.5K]

Answer:

The sample size is    n = 68

Step-by-step explanation:

From the question we are told that

    The margin of error is  E = 5 \ years

     The standard deviation is  \sigma = 22

From the question we are told the confidence level is  94% , hence the level of significance is    

      \alpha = (100 - 94 ) \%

=>   \alpha = 0.06

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.881

Generally the sample size is mathematically represented as  

   n = [\frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ] ^2

=>  n = [\frac{1.881 } *  22 }{5} ] ^2

=>  n = 68

8 0
3 years ago
What number between 20 and 25 is a prime number?
Elena-2011 [213]
Prime numbers are numbers that have only one factor pair; 1 and themselves.

Let's start from 21.

21 = 1 x 21, 3  x 7.
This has two factor pairs, this is not prime.

Let's try 22.

22 = 1 x 22, 2 x 11.
This also has two factor pairs, this is not prime.

Let's try 23.

1 x 23.
This is a prime number, as it only has one factor pair; 1 and itself.

23 is your prime number.

I hope this helps!
6 0
3 years ago
Read 2 more answers
Help with this algebra question
Ksivusya [100]
A) y=(12-3x)/4
b)(4,0)
4 0
3 years ago
Read 2 more answers
Given f(x) = (3x – 12) +2, what is the domain in set notation?
sattari [20]

Answer:4

Step-by-step explanation:

6 0
3 years ago
If their were thirty cows and twenty ate chickens how many didn't?
tresset_1 [31]

Answer:

10 didn’t eat chickens

Step-by-step explanation:

30-20=10

6 0
3 years ago
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