Answer: I think its 4 + 2m
Answer:
9
Step-by-step explanation:
Because its a right angle
3:4,5:2.4 2.4/4*5= 3 (8/4= 2 2*5=10) and 3/2*3= 4,5 (10/2*3=15)
Answer:
<u>Volume = 0.59 m³</u>
<u>Surface Area = 3.93 m²</u>
Step-by-step explanation:
<u>Given :-</u>
- Radius = 0.5 cm
- Height = 0.75 cm
<u>To Find :-</u>
- Volume
- Surface Area
<u>Solving :-</u>
Volume = πr²h
= 22/7 x (0.5)² x 0.75
= 22/7 x 1/4 x 3/4
= 66/112
= 33/56 m³
= 0.59 m³
Surface Area = 2πr (r + h)
= 2 x 22/7 x 0.5 (0.5 + 0.75)
= 22/7 x 5/4
= 110/28
= 55/14 m²
= 3.93 m²
<u>Solution :-</u>
<u>Volume = 0.59 m³</u>
<u>Surface Area = 3.93 m²</u>
Answer:
And using a calculator, excel or the normal standard table we have that:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:
Where
and
They select a sample size of n=9 people.The distribution for the sample mean
is given by:
And we want to find this probability:
![P(\bar X](https://tex.z-dn.net/?f=%20P%28%5Cbar%20X%20%3C200%29)
In order to the helicopter can safely lift off. We can use the z score formula given by:
![z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}](https://tex.z-dn.net/?f=%20z%20%3D%20%5Cfrac%7B%5Cbar%20X%20-%5Cmu%7D%7B%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D)
And using a calculator, excel or the normal standard table we have that: