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NISA [10]
3 years ago
10

Which angle is a vertical angle with

Mathematics
1 answer:
yuradex [85]3 years ago
8 0
The angle that is a vertical angle is ii believe DFB !
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Rainbow [258]

Answer:

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Solve the equation identify extraneous solutions
PIT_PIT [208]

Answer:

Step-by-step explanation:

The goal to solving any equation is to have x = {something}.  That means we need to get the x out from underneath that radical.  It's a square root, so we can "undo" it by squaring.  Square both sides because this is an equation.  Squaring both sides gives you

x^2=-3x+40

Get everything on one side of the equals sign and set the quadratic equal to 0:

x^2+3x-40=0

Throw this into the quadratic formula to get that the solutions are x = 5 and -8.  We need to see if only one works, both work, or neither work in the original equation.

Does 5=\sqrt{-3(5)+40}?

5=\sqrt{-15+40} and

5=\sqrt{25}

and 5 = 5.  So 5 works.  Let's try -8 now:

-8=\sqrt{-3(-8)+40} and

-8=\sqrt{24+40} so

-8=\sqrt{64}

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6 0
3 years ago
Easy math for u trust me
iogann1982 [59]
Answer:
6457 + 7925 = 14382
5 0
2 years ago
Read 2 more answers
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