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3 years ago

What is y=1/2x+4 in standard form?

Mathematics

1 answer:

zhuklara [117]3 years ago

8 0

<h3>Answer: x-2y = -8</h3>

===========================================

Explanation:

Multiply both sides by 2 to clear out the fraction

y = (1/2)x+4

2y = 2[ (1/2)x + 4 ]

2y = 2*(1/2)x + 2*4

2y = x + 8

Then move the x term over to the left side

2y = x+8

2y-x = 8

-x+2y = 8

Optionally we can multiply both sides by -1

-x+2y = 8

-1*(-x+2y) = -1*8

x-2y = -8

This is in standard form Ax+By = C with A = 1, B = -2, C = -8

The reason why I multiplied both sides by -1 was to make A > 0 which is what some textbooks use as convention. Of course -x+2y = 8 is equally valid too.

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prisoha [69]

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3 years ago

9. Verify experimentally that alternate angles are equal

hoa [83]

Answer:

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Step-by-step explanation:

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3 years ago

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Dafna11 [192]

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4 years ago

While painting the side of his house, Jason positioned his ladder so that the top was 16 feet

kenny6666 [7]

Answer: $8.71\ ft$

Step-by-step explanation:

Given

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In another case ladder is 18 ft above the ground and let say x ft away from the base of the wall

In both the cases the length of ladder remains the same

Using Pythagoras theorem, we can write

$\Rightarrow 16^2+12^2=L^2\ldots(i)\\\Rightarrow 18^2+x^2=L^2\ldots(ii)\\\text{From (i) and (ii)}\\\Rightarrow 16^2+12^2=18^2+x^2\\\Rightarrow x^2=256+144-324\\\Rightarrow x^2=76\\\Rightarrow x=\sqrt{76}\\\Rightarrow x=8.71\ ft$

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3 years ago

Please help I don’t understand

Crazy boy [7]

Answer: 28.26 inches

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4 years ago