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2 years ago

Find the inverse of the function f(x) =x^2-5. Is the inverse a function?

Mathematics

1 answer:

Mariana [72]2 years ago

8 0

Y=x^2-5, solve for x

y+5=x^2

x=√(y+5) so

f^-1(x)=√(y+5)

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Anastaziya [24]

Answer:

x = $\frac{+}{-}$ 7

Step-by-step explanation:

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2 years ago

Find the length of the side marked x

ruslelena [56]

it's a right angled triangle so we will use hypotenuse formula to get the value of x

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1 year ago

ABCEDEFGH is a regular octagon. The minimum degree of rotation by which this octagon can map onto itself is . It will take incre

Mrrafil [7]

Answer:

45 or multiples of 45 around the centre of octagon

Step-by-step explanation:

Given that ABCDEFGH is a regular octagon. i.e. it has 8 sides.

Since regular ocagon, all interior angles would be equal.

Sum of all interior angles of octagon = 2(8)-4 right angles

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Thus the octagon when rotated will take the same shape if vertices interchange also due to the property that all sides and angles are equal

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