x-------> the length of <span>a rectangular cookie sheet
we know that
area of </span><span>a rectangular cookie sheet=length*width
area of </span>a rectangular cookie sheet=192 in²
area of a rectangular cookie sheet=<span>x² + 4x-----> x*(x+4)
</span><span>Step 1: x² + 4x = 192
</span><span>Step 2: x(x +
4 ) = 192 The length is x. The width is
(x+4)
</span><span>Step 3: x² + 4x = 192=0
we have
</span>x² + 4x = 192
x² + 4x - 192=0
using a graph tool-----> to resolve the second order equation
see the aattached figure
the solution is
x=-16
x=12
(x+16)*(x-12)=0
the length is x=12 in
and the width is-----> (x+4)-----> 12+4----> 16 in
<span>Step 4: (x +
16) (x - 12) = 0
Because the length can't be -
16 the length is 12, and the width is
16</span>
Answer:
n= 3+ 5
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
72/6
Answer:
(0.6)
Step-by-step explanation:
the y intercept is determined by wherever x = 0
the ordered pair (0,6) has the x value equaling 0
therefore (0,6) represents the y-intercept
(x - 1/6)(x - (-2/3)) = 0
(x - 1/6)(x + 2/3) = 0
x^2 + 2/3x - 1/6x - 1/6(2/3) = 0
x^2 + 1/2x - 1/9 = 0
18x^2 + 9x - 2 = 0