100 points ! will mark brainliest pls asap a triangle has angles measuring 10°, 40°, and 130° with side lengths of 23 cm, 84 cm, and 100 cm. classify this triangle by its angles and sides.

a.
acute equilateral

b.
obtuse isosceles

c.
acute isosceles

d.
obtuse scalene

The answer is obtuse scalene!

Step-by-step explanation:

The angle measurement is over 90 which classifies as obtuse and all the side measures are different so scalene is the second classification!

I hope this helps!

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Ciao!

♥, Sadie

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

22 and 22

step-by-step explanation:

10 plus 12 equals 22.

12 plus 10 also equals 22 because regardless of what order they're in, they're gonna equal the same thing.