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MAVERICK [17]
3 years ago
7

Help me with this problem plzzzz

Mathematics
2 answers:
xeze [42]3 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

∠7 = 137° ( vertically opposite angle )

∠8 = 180° - ∠7 = 180° - 137° = 43° ( straight angle )

∠6 = ∠8 = 43° ( vertically opposite angles )


fiasKO [112]3 years ago
5 0

Answer:

7= 137

6= 43

8=43

Step-by-step explanation:

well 7 would be the same angle as 137

and 6 and 8 are the same angle

so u already know that

7= 137

now to find 6 0r 8 u just need to subtract 137 from 180 to get

6= 43

8= 43

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chubhunter [2.5K]

Answer:

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Step-by-step explanation:

Given:

The expression given is:

\dfrac{2a^2-4a+2}{3a^2-3}

Let us simplify the numerator and denominator separately.

The numerator is given as 2a^2-4a+2

2 is a common factor in all the three terms. So, we factor it out. This gives,

=2(a^2-2a+1)

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The denominator is given as: 3a^2-3

Factoring out 3, we get

3(a^2-1)

Now, a^2-1 is of the form a^2-b^2=(a-b)(a+b)

So, a^2-1=(a-1)(a+1)

Therefore, the denominator becomes 3(a-1)(a+1)

Now, the given expression is simplified to:

\frac{2a^2-4a+2}{3a^2-3}=\frac{2(x-1)(x-1)}{3(x-1)(x+1)}

There is (x-1) in the numerator and denominator. We can cancel them only if x\ne1 as for x=1, the given expression is undefined.

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\dfrac{2a^2-4a+2}{3a^2-3}=\dfrac{2(x-1)}{3(x+1)}

Therefore, the simplified form is \dfrac{2(x-1)}{3(x+1)}

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</span>
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