3 years ago

What is the answer please

1 answer:

4 0

The answer is 21. 29^2 - 20^2 = 21^2.

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statuscvo [17]

Is it SV squared? Or times 2

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2 years ago

Ad libitum [116K]

Answer: "7 is a solution to the original equation. The value –1 is an extraneous solution."

Step-by-step explanation:

The equation $x=\sqrt{6x+7}$ can be solved by squaring both sides:

$x^2 = 6x + 7\\\\x^2 - 6x - 7 = 0\\\\(x-7)(x+1) = 0$

We can see that -1 and 7 are solutions, but make sure they are not extraneous by substituting them in the original equation:

$1 = \sqrt{-1}\\ 7 = \sqrt{49}$

The square root of 49 equals 7, but the square root of -1 is an imaginary number.

The correct choice is "7 is a solution to the original equation. The value –1 is an extraneous solution."

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3 years ago

Blababa [14]

Answer:

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Step-by-step explanation:

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2 years ago

wariber [46]

The answer is down below following the order 6~9
6. A
7. C
8.C
9. D

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3 years ago

NNADVOKAT [17]

Answer:

slope: 5/2

Step-by-step explanation:

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2 years ago