Answer:
37.50°
Step-by-step explanation:
The sum of both sides of an angle is 180°.
180° - 142.5° = 37.50°
$120 per each student x 495 students = $59,400
Hope this helps!
Answer:
Multiply by 10.
Step-by-step explanation:
When writing a number in scientific notation, if you move the decimal point to the left 3 places, then you must multiply by 10.
The amount of Protein intake is 900 kilocalorie.
We have - 2000 Kilocalories of diet and 45 Percent of calories come from Proteins.
Wе have to find out the amount of protein intake.
<h3>If ' x ' students out of total ' n ' students in a class are infected by virus. Then, what percentage of students are infected.</h3>
Percentage of students affected are - 
In the question given -
Let the amount of Protein intake be y.
Then -
45 = y % of 2000
45 = 
y = 
y = 900 Kilocalorie
Hence, the amount of Protein intake is 900 kilocalorie.
To solve more questions on Percentage, visit the link below-
brainly.com/question/14801224
#SPJ1
Answer:
(a): Marginal pmf of x


(b): Marginal pmf of y


(c): Mean and Variance of x


(d): Mean and Variance of y


(e): The covariance and the coefficient of correlation

Step-by-step explanation:
Given
<em>x = bottles</em>
<em>y = carton</em>
<em>See attachment for complete question</em>
<em />
Solving (a): Marginal pmf of x
This is calculated as:

So:






Solving (b): Marginal pmf of y
This is calculated as:

So:






Solving (c): Mean and Variance of x
Mean is calculated as:

So, we have:




Variance is calculated as:

Calculate 




So:




Solving (d): Mean and Variance of y
Mean is calculated as:

So, we have:




Variance is calculated as:

Calculate 




So:




Solving (e): The covariance and the coefficient of correlation
Covariance is calculated as:

Calculate E(xy)

This gives:




So:




The coefficient of correlation is then calculated as:





--- approximated