Write an equation of the line that passes through a pair of points (5, -2) , (4,5)
1 answer:
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Answer:
h= (V/πr²)(3)
Step-by-step explanation:
Step-by-step explanation:
The plumber's daily earnings have a mean of $145 per day with a standard deviation of
$16.50.
We want to find the probability that the plumber earns between $135 and
$175 on a given day, if the daily earnings follow a normal distribution.
That is we want to find P(135 <X<175).
Let us convert to z-scores using
This means that:
We simplify to get:
From the standard n normal distribution table,
P(z<1.82)=0.9656
P(z<-0.61)=0.2709
To find the area between the two z-scores, we subtract to obtain:
P(-0.61<z<1.82)=0.9656-0.2709=0.6947
This means that:
The correct choice is C.
Answer:
- The vertex of the graph is (5, -37) [see attached image]
- The parabola has a minimum [the coefficient of x² is positive]
- The parabola opens up [the coefficient of x² is positive]
