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miss Akunina [59]

2 years ago

14

What is another way to write 9x200?

2 answers:

pashok25 [27]2 years ago

7 0

9×2=18. add the tow zeros like this 9×2=18+00=1,800

REY [17]2 years ago

7 0

9x200= 1800
you could write it like 9x20x10=1800

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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

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

$\sqrt{16} =-4$

$4=-4$ ----> is not true

so

Is an extraneous solution

For x=-1

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

$\sqrt{1} =1$

$1=1$ ----> is true

so

Is the solution

4 0

3 years ago

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djyliett [7]

Answer:

9in2

Step-by-step explanation:

the 2 is an expononent.

3 0

3 years ago

Write an equation for which 0 is a solution

masha68 [24]

Answer:

x-y=0

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4 0

2 years ago

2.<br><br> Find the slope of the line that passes through the points (4,2) and (4,10)

muminat

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The slope is unidentified

Step-by-step explanation:

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2 years ago

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PIT_PIT [208]

Answer:

Neither

Step-by-step explanation:

Parallel must have the same slope.

Perpendicular must have reciprocal slopes.

These two contain neither.

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