B, because if you divide 7 by 9, you get 0.7 repeated, which if rounded is 0.78
3(13-2a)=-3+a
39-6a=-3+a
42=7a
a=6
Let's first define the variables:
x = width
300 - 2x = long
The area will be:
A = (x) * (300 - 2x)
A = 300x - 2x²
We look for the maximum area, for this, we derive:
A '= 300 - 4x
We match zero:
0 = 300 - 4x
x = 300/4 = 75
Therefore, the width is:
x = 75 feet
The length is:
300 - 2x = 300 - 2 (75) = 300-150
150 feet
Answer:
Part A:
The maximum area will be:
A = (150) * (75) = 11250 square feet
Part B:
The dimensions are:
Length = 150 feet
width = 75 feet
Answer:
48
Step-by-step explanation:
100-52=48
Answer:
the answer is -9
Step-by-step explanation:
3(2 - 5)
6 - 15
-9
