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3 years ago

O

Mathematics

1 answer:

deff fn [24]3 years ago

4 0

Answer:

B,∠BAC=40°

Step-by-step explanation:

diameter makes 90° on the circumference.

∠CBA=90°

∠ACB+∠CBA+∠BAC=180°

50+90+∠BAC=180

∠BAC=180-140=40°

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Find the area of a parallelogram ABCD with AB =7 m. AD = 20 m and BAD = 62°.

nikklg [1K]

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Answer:

123.6 m²

Step-by-step explanation:

The area is given by the formula ...

A = (AB)(AD)sin(∠A)

A = (7 m)(20 m)sin(62°) ≈ 123.6 m²

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3 years ago

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insens350 [35]

Answer:

<em>Option D</em>

Step-by-step explanation:

Assume that these polygons were similar. You could tell that if they were, ABCD ~ EFGH, and is already noted by the answer choices. We can conclude that AB ~ EF, CD ~ GH and so on. To prove that these shapes are similar, we must form a like proportionality among these side;

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3 years ago

Simplify f+g / f-g when f(x)= x-4 / x+9 and g(x)= x-9 / x+4

steposvetlana [31]

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Answer:

20x30xH=7000

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