50
Step by step explanation
The expression that can be used to find profit is 20x – 50 and that profit when 75 pairs of jeans are sold is 1,450.
<h3>How find profit function and the profit?</h3>
Let R represents the revenue function and C represents the cost function, the two functions can be stated correctly as follows:
R = 2x^2+17x−175
C = 2x^2−3x−125
Let P represents the expression that can be used to find profit, we therefore have:
P = R – C
P = 2x^2+17x−175 – (2x^2−3x−125)
P = 2x^2+17x−175 – 2x^2 + 3x + 125
P = 2x^2 – 2x^2 + 17x + 3x – 175 + 125
P = 20x – 50
The profit when 75 pairs of jeans are sold can therefore be calculated as follows:
P = (20 * 75) – 50
P = 1,450
Learn more about profit function here: brainly.com/question/16866047.
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Answer:
-1/2
It is a negative slope going down 1 over 2
Answer:
Step-by-step explanation:
-Given the boundaries as 0.412 and 0.878
-
is the point estimate for the population proportion and is calculated as follows:
#The margin of error, ME can be calculated for the confidence intervals using the formula:
#The number of individuals in the sample is the product of the point estimate and population size:
Hence, there are 645 individuals in the sample.
Answer:
x = ± 10
Step-by-step explanation:
to solve the equation let y = 0 , that is
100 - x² = 0 ( add x² to both sides )
100 = x² ( take square root of both sides )
± 
= x , that is
x = ± 10
