Answer:
It is a circle with a radius of 9 in.
1600 is a double amount of 800, 800 of 80,000 is 1%, the property tax rate is 2%.
Answer: 0.2134
Step-by-step explanation:
Given : Mean readings on thermometers =![\mu=0^{\circ}\ C](https://tex.z-dn.net/?f=%5Cmu%3D0%5E%7B%5Ccirc%7D%5C%20C)
Standard deviation = ![\sigma=1.00^{\circ}\ C](https://tex.z-dn.net/?f=%5Csigma%3D1.00%5E%7B%5Ccirc%7D%5C%20C)
We assume that the readings on thermometers are normally distributed.
Let x be the random variable that represents the reading on a random thermometer.
To find z-score : ![z=\dfrac{x-\mu}{\sigma}](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7Bx-%5Cmu%7D%7B%5Csigma%7D)
For x = -0.99
![z=\dfrac{-0.99-0}{1}=-0.99](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7B-0.99-0%7D%7B1%7D%3D-0.99)
For x= -0.32
![z=\dfrac{-0.32-0}{1}=-0.32](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7B-0.32-0%7D%7B1%7D%3D-0.32)
By using the standard normal distribution table , the probability that a randomly selected thermometer reads between -0.99 and -0.32 will be :-
![P(-0.99](https://tex.z-dn.net/?f=P%28-0.99%3Cx%3C-0.32%29%3DP%28-0.99%3Cz%3C-0.32%29%5C%5C%5C%5C%3DP%28z%3C-0.32%29-P%28z%3C-0.99%29%5C%5C%5C%3D0.3744842-0.1610871%3D0.2133971%5Capprox0.2134)
Answer:
slope = 3
Step-by-step explanation:
Calculate the slope m using the slope formula
m = ![\frac{y_{2}-y_{1} }{x_{2}-x_{1} }](https://tex.z-dn.net/?f=%5Cfrac%7By_%7B2%7D-y_%7B1%7D%20%20%7D%7Bx_%7B2%7D-x_%7B1%7D%20%20%7D)
with (x₁, y₁ ) = (1, 2) and (x₂, y₂ ) = (3, 8)
m =
=
= 3