Answer:
1.
2.
3.
Step-by-step explanation:
<u>QUESTION 1</u>
The given data set for the expenditure is
The formula for calculating the mean is given by,
We need to add all the expenditure and divide by the total number of days.
This gives us,
to the nearest hundredth.
<u>QUESTION 2</u>
The standard deviation of the data set is given by the formula;
This implies that,
This will give us,
to the nearest hundredth,
.
<u>QUESTION 3</u>
The variance is the square of the standard deviation.
To the nearest hundred gives,
The measure of ∠1 is also <span>93° because vertically opposite angles are equal.</span>
Answer:
Step-by-step explanation:
we know that
A polynomial function that has a leading coefficient of -1 and root 4 with multiplicity 2 is equal to
Expand the function
It is a right angle.
Hope this helps sorry if t doesn't but the question is kinda vague
Have a wonderful dayXD