Answer:
0.627%
Step-by-step explanation:
Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.
For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.
Probability of a randomly selected household to be audited and owns a dog = P(A ∩ B) = P(A) x P(B)
where A = household tax returns audited
B = percentage of households that own dogs
0.0165 x 0.38 = 0.627%
Answer:
The length of apothem of given hexagon is 8.66 cm
Step-by-step explanation:
Apothem of a polygon is given by:
![apothem = \frac{s}{2\ tan\ (\frac{180}{n})}](https://tex.z-dn.net/?f=apothem%20%3D%20%5Cfrac%7Bs%7D%7B2%5C%20tan%5C%20%28%5Cfrac%7B180%7D%7Bn%7D%29%7D)
Here
s is length of side
tan is trigonometric function
and n denotes number of sides
Given that the polygon is a hexagon
![s = 10cm\\n = 6](https://tex.z-dn.net/?f=s%20%3D%2010cm%5C%5Cn%20%3D%206)
Putting the values in the formula
![apothem = \frac{10}{2\ tan\ (\frac{180}{6})}\\= \frac{10}{2\ tan\ 30}\\=\frac{10}{2 * 0.5773}\\=\frac{10}{1.1546}\\=8.6610\\Rounding\ off\ to\ nearest\ hundredth\\= 8.66\ cm](https://tex.z-dn.net/?f=apothem%20%3D%20%5Cfrac%7B10%7D%7B2%5C%20tan%5C%20%28%5Cfrac%7B180%7D%7B6%7D%29%7D%5C%5C%3D%20%5Cfrac%7B10%7D%7B2%5C%20tan%5C%2030%7D%5C%5C%3D%5Cfrac%7B10%7D%7B2%20%2A%200.5773%7D%5C%5C%3D%5Cfrac%7B10%7D%7B1.1546%7D%5C%5C%3D8.6610%5C%5CRounding%5C%20off%5C%20to%5C%20nearest%5C%20hundredth%5C%5C%3D%208.66%5C%20cm)
Hence,
The length of apothem of given hexagon is 8.66 cm
Answer:
-1
Step-by-step explanation:
Given: Mean= 25 minutes.
Standard deviation= 2 minutes
x= 23 minutes.
Lets find the z-score for the number of sandwiches delivered in less than 23 mins.
Formula: Z-score= ![\frac{x-mean}{standard\ deviation}](https://tex.z-dn.net/?f=%5Cfrac%7Bx-mean%7D%7Bstandard%5C%20deviation%7D)
Z-score= ![\frac{23-25}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B23-25%7D%7B2%7D)
⇒ Z-score= ![\frac{-2}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B-2%7D%7B2%7D)
∴ Z-score will be -1
Hence, -1 is the z-score for the number of sandwiches delivered in less than 23 minutes.
The answer is A because if you do the 40 dagree and a coodinate plane it forms a triangle.
Answer:
![\frac{3}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B2%7D)
Step-by-step explanation:
Using the addition formulae for cosine
cos(x ± y) = cosxcosy ∓ sinxsiny
---------------------------------------------------------------
cos(120 + x) = cos120cosx - sin120sinx
= - cos60cosx - sin60sinx
= -
cosx -
sinx
squaring to obtain cos² (120 + x)
=
cos²x +
sinxcosx +
sin²x
--------------------------------------------------------------------
cos(120 - x) = cos120cosx + sin120sinx
= -cos60cosx + sin60sinx
= -
cosx +
sinx
squaring to obtain cos²(120 - x)
=
cos²x -
sinxcosx +
sin²x
--------------------------------------------------------------------------
Putting it all together
cos²x +
cos²x +
sinxcosx +
sin²x +
cos²x -
sinxcosx +
sin²x
= cos²x +
cos²x +
sin²x
=
cos²x +
sin²x
=
(cos²x + sin²x) = ![\frac{3}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B2%7D)