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2 years ago

If a = -35, b = 10 cm and c = -5, verify that:

Mathematics

1 answer:

Murljashka [212]2 years ago

7 0

Step-by-step explanation:

(i). a+(b+c) = (a+b)+c

-35+(10-5) = (-35+10)+(-5)

-35+5 = -25-5

-30 = -30

(ii). a×(b+c) = a×b + a×c

-35 × [10+(-5)] = -35×10 + -35×-5

-35 × (10-5) = -350 + 175

-35 × 5 = -350 + 175

-175 = -175

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The angle from the horizontal to a point or the line of sight is measured with angles of elevation and depression.

when the points is high above the line of sight we have angle of elevation however when the line of sight is below the horizontal we have angle of depression

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h = h1 + h2

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Read more on angle of elevation and depression here: brainly.com/question/15580615

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