2 years ago

What is the problem 2x-4y=12 ??

Mathematics

1 answer:

Firlakuza [10]2 years ago

5 0

Answer:

(2*8)-(4*1) = 12

Step-by-step explanation:

2*8 = 16

4*1 = 4

16-4 = 12

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Answer: C

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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

Verify each solution

substitute the value of x in the original expression

For x=-6

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$\sqrt{16} =-4$

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Is an extraneous solution

For x=-1

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

$\sqrt{1} =1$

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

Is the solution

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3 years ago

What is a statement that is assumed to be true without proof

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Answer:

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3 years ago

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13.62 Round to the nearest whole number.

julsineya [31]

Answer:

14 would be your answer :)

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2 years ago

Please help me!!!!!!

True [87]

Answer:

y = 28, 16 , 4 , -8 , -20

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3 years ago