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Answer:
First choice, (x + 2) and (x - 6).
Step-by-step explanation:
To solve for the dimensions, recall that the formula for the volume of a rectangle is:
A = l × w
Simply factor x² -4 - 12. Find two numbers that add up to -4 and multiply into -12.
2, -6 satisfy these conditions. Use these numbers to write this equation in factored form:
(x + 2) (x - 6). Thus, the first option is the correct answer.
The answer is B because anything less than 1 will be smaller than the original
The rectangle maximum area will be A=9 square units with the length=3 and the width=3.
<h3>What is area of rectangle?</h3>
Area is defined as the space occupied by a plane or rectangle having length and width in two dimensional plane.
It is given that the perimeter of rectangle is P=12
So from the formula of perimeter of rectangle
2(L+W)=12
L+W=6
L=6-W
Now the area of rectangle will be
A=LxW
A=(6-W)W
Now for maximum area we will find the derivative and equate to zero.
So the area will be
Hence the rectangle maximum area will be A=9 square units with the length=3 and the width=3.
To know more about area of rectangle follow
brainly.com/question/25292087
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Answer:
If x = 0, then the value of the polynomial = 0
Step-by-step explanation:
Given that ;
F(x ) = 5x - 4x^2
Substituting 0 for x we have;
F(0) = 5(0) -4(0)^2 = 0 + 0 = p
Answer:
The number is 72.
Step-by-step explanation:
Let the number be xy.
x = y + 5
10x + y - 2(10y + x) = 0.25(10x + y)
10x - 2x + y - 20y = 2.5x + 0.25y
5.5x - 19.25y = 0
Substituting for x:
5.5y + 27.5 - 19.25y = 0
-13.75y = -27.5
y = 2.
So x = 2 + 5 = 7.
