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Sauron [17]
3 years ago
10

the length of a rectangle is 6in.more than than its width .Its area is 50 sq.in Find the width of the rectangle....

Mathematics
1 answer:
yulyashka [42]3 years ago
7 0
L=6+W
A=LW
sub 6+W for L
A=(6+W)(W)
expand
oh, A=50
50=W²+6W
minus 50 both sides
0=W²+6W-50
we gots to use quadratic formula
for
aW²+bW+c=0
W=\frac{-b+/- \sqrt{b^2-4ac} }{2a}
we got
a=1
b=6
c=-50


W=\frac{-(6)+/- \sqrt{(6)^2-4(1)(-50)} }{2(1)}
W=\frac{-6+/- \sqrt{36+200} }{2}
W=\frac{-6+/- \sqrt{236} }{2}
W=\frac{-6+/- 2\sqrt{59} }{2}
W=-3+/- \sqrt{59}

W=-3+ \sqrt{59} or W=-3- \sqrt{59}
aprox
W=-10.6811 or W=4.68115
can't be negative width

width=4.68115 or -3√59
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NARA [144]

The equation of line that passes through the points (-3,-1) and

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Step-by-step explanation:

Given points are:

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The slope-intercept form of equation of line is:

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We have to find the slope first

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Putting the value of slope in the slope intercept form

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Putting the values of b and m

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The equation of line that passes through the points (-3,-1) and

(-6,3) is:

y=-\frac{4}{3}x-5

Keywords: Equation of line, slope intercept form

Learn more about equation of line at:

  • brainly.com/question/4703807
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