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3 years ago

Find the distance between points P(8,2) and Q(3,8) to the nearst tenth

Mathematics

1 answer:

umka21 [38]3 years ago

4 0

Answer:

7.8

Step-by-step explanation:

distance formula works like this

(difference in xs)² = difference of 8 and 3 is 5² = 25

and

(difference in ys)² = difference of 2 and 8 is 6² = 36

add them = 61

square root of that = √61 = 7.8

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VLD [36.1K]

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Step-by-step explanation:

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3 years ago

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Rashid [163]

Answer:

The answer is B.

Step-by-step explanation:

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4 0

3 years ago

Read 2 more answers

Hurry 50 points for correct answer

Ad libitum [116K]

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

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 <em>"7 is a solution to the original equation. The value –1 is an extraneous solution."</em>

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3 years ago