3 years ago

Which ratio expresses the scale used to create this drawing? 1 square=10 yards

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

4 0

Answer:

option B

Step-by-step explanation:

option B

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Step-by-step explanation:

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Arlecino [84]

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Katyanochek1 [597]

The division is using extra zeros.
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3 years ago

Which of the following is an extraneous solution of the square root of -3x-2=x+2

yarga [219]

Answer:

x=-6 is an extraneous solution

Step-by-step explanation:

we have

$\sqrt{-3x-2} =x+2$

squared both sides

$-3x-2=(x+2)^2$

$-3x-2=x^2+4x+4$

$x^2+7x+6=0$

solve the quadratic equation by graphing

The solution is x=-6 and x=-1

see the attached figure

<u><em>Verify each solution</em></u>

substitute the value of x in the original expression

For x=-6

$\sqrt{-3(-6)-2} =-6+2$

$\sqrt{16} =-4$

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Is an extraneous solution

For x=-1

$\sqrt{-3(-1)-2} =-1+2$

$\sqrt{1} =1$

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3 years ago

Translate into algebraic equation - a number plus 15 exceeds twice that number by 3

bija089 [108]

Answer:

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2 years ago