Answer:
As per the statement:
Here, x represents the total sales in dollars
Total weekly pay of Alexa in dollar is represented by:
and
Total weekly pay of Samantha in dollar is represented by:
We have to find the value of x, in dollars that will make their weekly pay the same.
⇒
Substitute the values we have;
Subtract 250 from both sides we get;
Subtract 0.085 x from both sides we get;
Divide both sides by 0.01 we have;
Simplify:
x = $16300
Therefore, $16300 that will make their weekly pay the same
Answer:
the covariance between the revenue and cost is 1,513. What is the variance of the profit (X-Y) of the company is 303468
Step-by-step explanation:
Given that;
E(x) = 6263
SD(x) = 440
F(y) = 4872
SD(y) = 336
COVI (x, y) = 1513
Variance x = [ SD(x) ]²
Variance x = [440]² = 193600
Variance y = [ SD(y) ]²
Variance y = [336]² = 112896
Now to get variance of the profit (X-Y) of the company we say;
variance ( x-y ) = variance x + variance y - 2covi(x.y)
we substitute
variance ( x-y ) = 193600 + 112896 - ( 2 × 1513 )
variance ( x-y ) = 306496 - 3026
variance ( x-y ) = 303468
therefore the covariance between the revenue and cost is 1,513. What is the variance of the profit (X-Y) of the company is 303468
THIS IS SO EASY!
Use the method of "Writing it as a sum". (meaning use addition signs.)
Use commutative property (Change order of expression of the same signs).
How to solve:
1.) They are all negatives so add.
-24 + (-26) + (-8)
-24 + - 26 + -8 They all have the same signs)
-50 + -8
-58
When you are writing it as a sum, you're basically adding it's additive inverse.
Answer:
80°
Step-by-step explanation:
4x + 5x = 180, so 9x = 180, x = 180/9 = 20
So m∠SVW = 4x + 4*20 = 80°
