2 years ago

Estimate the sum or difference 8/9 +4/7=

Mathematics

1 answer:

zhenek [66]2 years ago

7 0

Answer:

1 29/63

Step-by-step explanation:

To add fractions, find the LCD and then combine.

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I am Lyosha [343]

First you have to find the angle B (check attachment)

$B = 180^{\circ} - 137^{\circ} = 43^{\circ}\\$

Then you can find the last angle inside the triangle, which I'll call C

$C = 180^{\circ} - 102^{\circ} - 43^{\circ} = 35^{\circ}$

Now you can find angle A

$A = 180^{\circ} - C = 180^{\circ} - 35^{\circ} = 145^{\circ}$

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Step-by-step explanation:

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3 years ago

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Answer:

this question is essentially -5 + 4

You could say:

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May I have brainliest please? :)

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