If the function is continuous on (a,c), it has a maximum at b. if it is not continuous, nothing can be said.
Answer:
C=9 or c=-7
Step-by-step explanation:
|-5c+5|=40
-5c+5=-40 or - 5c+5=40
-5c=-40-5. - 5c=40-5
-5c=-45. - 5c=35
C=9. C=-7
The area of the triangle with vertices
is
.
Inserting numerical values, the are of the triangle with vertices (0, 0), (6, 2), (4, 8) is

B, there is a negative correlation
You need to know 20% of $5000. "Of" means "times".
$5000 x 0.20 (which is 20% written as a decimal)
=$1000 profit she wants to make
$5000 (original price) + $1000 (profit) = $6000 (sale price)