Answer:
7 feet
Step-by-step explanation:
The length of the line segment doesn't change if you reflect it over the line l.
The y intercept would be when x=0,
so, y=0^2+0-6
this will make y= -6
y intercept is at (0,-6)
As for x intercept, this is quadratic so it will have two intercept where y=0
y=x^2+x-6
You'll have to break up the equation to find the answer
0=(x+3)(x-2)
x+3=0 leads to x= -3
x-2=0 leads to x= 2
so the x intercepts are at (2,0) and (-3,0)
Answer:
12
Step-by-step explanation:
90-78=12
complementary angles are on right angles, so yeah.
Answer:
ans=13.59%
Step-by-step explanation:
The 68-95-99.7 rule states that, when X is an observation from a random bell-shaped (normally distributed) value with mean and standard deviation , we have these following probabilities
In our problem, we have that:
The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 53 months and a standard deviation of 11 months
So
So:
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What is the approximate percentage of cars that remain in service between 64 and 75 months?
Between 64 and 75 minutes is between one and two standard deviations above the mean.
We have subtracted by is the percentage of cars that remain in service between one and two standard deviation, both above and below the mean.
To find just the percentage above the mean, we divide this value by 2
So:
The approximate percentage of cars that remain in service between 64 and 75 months is 13.59%.