Answer:
the first number in the ordered pair is on the x axis, so find that number on the x axis, then, the second number is on the y axis, so find that number on the y axis, then, imagine a line that runs up and down on the x axis number, and a line that runs side to side on the y axis number, and were those lines would meet is were you need to put a dot on the coordinate plane
Step-by-step explanation:
The correct answer is 2083/8
The area is 24
Adding all the squares together gives you the area, there are a total of 24 squares on this shape.
Hope this helped. Have a great day!
<span>cos<span>[<span><span>7pi/</span>4</span>]</span></span>=<span>cos<span>(2pi−pi<span>4</span>)
</span></span> =<span>cos<span>(−pi/<span>4</span>)
</span></span> =<span>cos<span>(pi<span>4</span>)
</span></span> =<span><span><span>√2/</span>2</span></span>
Answer:
Step-by-step explanation:
Given that an observation from a normally distributed population is considered "unusual" if it is more than 2 standard deviations away from the mean. There are several contaminants that can harm a city's water supply. Nitrate concentrations above 10 ppm (parts per million) are considered a health risk for infants less than six month of age.
We can say 1.59 and 2.52 if taken average would be the mean
Mean = 2.01
The deviations on either side = 2.52-2.01 = 0.41
This can be taken as 2 std dev
So std dev = 0.205
Hence we can take nitrate concentration is normal with mean = 2.01 and std deviation is 0.205
N(2.01, 0.205)
