To find the x and y-intercept you plug in zero for the corresponding value that you are looking for. For example, if you are looking for x, plug 0 in for y.
To solve x-intercept: To solve y-intercept:
0=-2x-3 add 3 to other side y=-2(0)-3 substitute 0 for x
3= -2x divide 3 by -2 to isolate x y= 0-3
3/-2 = x (3/-2 , 0) is your x intercept y=-3 ( 0,3) is your y-intercept.
I hope this helps...
Answer:
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Answer:
81.85%
Step-by-step explanation:
Given :
The average summer temperature in Anchorage is 69°F.
The daily temperature is normally distributed with a standard deviation of 7°F .
To Find:What percentage of the time would the temperature be between 55°F and 76°F?
Solution:
Mean = 
Standard deviation = 
Formula : 
Now At x = 55


At x = 76


Now to find P(55<z<76)
P(2<z<-1)=P(z<2)-P(z>-1)
Using z table :
P(2<z<-1)=P(z<2)-P(z>-1)=0.9772-0.1587=0.8185
Now percentage of the time would the temperature be between 55°F and 76°F = 
Hence If the daily temperature is normally distributed with a standard deviation of 7°F, 81.85% of the time would the temperature be between 55°F and 76°F.
Answer:
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