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If the gradient of a line is m, the gradient of a line perpendicular to it (m') is such that mm' = -1, that is:

m' = -1/m

So for:

y = -x - 5

m = -1, so the gradient of a perpendicular line is:

m' = -1/-1 = 1

So a general line perpendicular to y = -x - 5 would be:

y = x + c

A specific line perpendicular to y = -x - 5 at point (xo, -xo-5) on the line is:

y - (-xo-5) = 1(x - xo)

⇒ y = x - 2xo - 5

Q: What would be the perpendicular line for y equals -x-5?

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1,565 = x5 1,5651/5 = (x5)1/5 1,5651/5 = x5/5 1,5651/5 = x 4.3541 = x

11x5=55 !

Assuming that the question is find x in x5=1610; the answer is 4.378901

5 times 5 equals 25.

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1,565 = x5 1,5651/5 = (x5)1/5 1,5651/5 = x5/5 1,5651/5 = x 4.3541 = x

11x5=55 !

Assuming that the question is find x in x5=1610; the answer is 4.378901

512 x 5 = 2,560

5 times 5 equals 25.

a(x5) + b(x5) + c(x5) + d(x5) + e(x5) = abcde(a+b+c+d+e) x5 = abcdeThis equation has at least 5 variables. To solve for all of them requires at least 4 more equations.

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x5 = x3 times x2. In this case x3 = 64 so x = cube root of 64 ie 4

Choose the higher power. The LCM of x3 and x5 is x5

Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question with certainty. If the question is x*5 = 25 then the answer is x = 5. However, conventionally, x*5 would be written as 5x, not x5.

75 = 3 x 5 x 5

5+5x5=30 but (5+5)x5=50