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Lena [83]
2 years ago
7

Find an equation of a line through (2, 1) and perpendicular to −2x + 4y = 8

Mathematics
1 answer:
MAVERICK [17]2 years ago
4 0

Hello:<span>
the equation is : y = ax+b
the slope is a : a×(1/2) = -1......( perpendicular to a line with a slope of   1/2)            because :    -2x+4y =8...y=(1/2)x+2    )     </span>

<span>
a = -2       y=(-2x+b
the line that passes through (2,1) :1 = -2(2)+b
b =5
<span> the equation is :  y  = -2x+5</span></span>

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Step-by-step explanation:


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3 years ago
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What are the real and imaginary parts of z ?<br><br> z = 32 + 41.9i
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Answer:

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Step-by-step explanation:

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3 years ago
A square piece of paper has an area of x2 square units. A
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Answer:

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Step-by-step explanation:

Area of square x^2

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Length of rectangular strip = x

width of rectangular strip = 2

area of rectangular strip =  length * width = 2*x = 2x

Area of square piece of paper when  rectangular strip is taken away from it

= Area of square - area of rectangular strip

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It is given that Area of square piece of paper when  rectangular strip is taken away from it is 120 square units.

Thus,

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hence value of x is 12.

Hence,

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Area of square =  x^2 = 12^2 = 144

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