If △ABC ~ △DEF, find the length EF.
1 answer:
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Answer:
Option B is the correct choice.
Step-by-step explanation:
The graph is attached below.
We have to find the intercept meaning the value of the point on
when
So we will put the value of zero instead of
in our given equation.
So here we have solved it algebraically.
Putting
Multiplying both sides.
Adding both sides.
Dividing with both sides.
So the x-intercept of the given equation is which can be written as
in terms of coordinates.
Option B is the correct choice.
Answer:
95% of monthly food expenditures are between $110 and $190.
Step-by-step explanation:
Given : The monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical, normal distribution. The sample mean is $150 and the standard deviation is $20.
To find : Using the Empirical rule, about 95% of the monthly food expenditures are between which of the following two amounts?
Solution :
At 95% of the data is between two standard deviation to left and right of the mean is given by,
To the left side,
To the right side,
We have given,
The sample mean
The standard deviation
Substitute in the formula,
Therefore, 95% of monthly food expenditures are between $110 and $190.