Let
x-------------> amount added <span>to each side
</span>A-------------> area increased----------> 84 ft²
we know that
A=(10+x)*(5+x)=84-----------> 10*5+10*x+5*x+x²
50+15x+x²=84----------> x²+15x-34=0
<span>solving the second order equation
</span>x1=-17
x2=2
the answer is x=2 ft
The pattern shows multiplication because the earnings are 12 times the number of hours worked in each pair of values.
We are given a graph. The graph shows the number of hours worked versus the earnings in dollars. The values of the x-coordinates are 0, 1, 2, 3, 4, and 5. The corresponding values of the y-coordinates are 0, 12, 24, 36, 48, and 60. We need to find the pattern among these values.
We can see from the data that the values are in a straight line in the graph. The coordinates have the same proportion. The constant of proportionality is calculated below.
k = 12/1 = 12
Hence, the pattern is multiplicative because the earnings are 12 times the number of hours worked for each pair of values.
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3x-5y=20 the answer is y= 4x+-1/3
we have

we know that

and

substitute in the expression



therefore
<u>the answer is</u>
