If a regression analysis shows an R factor of 0.15, it is safe to assume a perfect positive relationship between cost and volume
1 answer:
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Answer:
Step-by-step explanation:
Based on the given conditions, formulate:
Calculate the product or quotient: 240
get the result: 240
Answer: 240
To find this answer, we had to use the expression 80 * 3, therefore making it the answer.
Question:
Consider ΔABC, whose vertices are A (2, 1), B (3, 3), and C (1, 6); let the line segment AC represent the base of the triangle.
(a) Find the equation of the line passing through B and perpendicular to the line AC
(b) Let the point of intersection of line AC with the line you found in part A be point D. Find the coordinates of point D.
Answer:
Step-by-step explanation:
Given
Solving (a): Line that passes through B, perpendicular to AC.
First, calculate the slope of AC
Where:
---
---
The slope is:
The slope of the line that passes through B is calculated as:
--- because it is perpendicular to AC.
So, we have:
The equation of the line is the calculated using:
Where:
---
So, we have:
Cross multiply
Make y the subject
Solving (b): Point of intersection between AC and
First, calculate the equation of AC using:
Where:
---
So:
So, we have:
and
Equate both to solve for x
i.e.
Collect like terms
Multiply through by 5
Collect like terms
Solve for x
Substitute in
Take LCM
Hence, the coordinates of D is: