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Nat2105 [25]
3 years ago
7

A boy 1.5 m tall can just see the sun over a wall 71.5 m high which is

Mathematics
1 answer:
igomit [66]3 years ago
5 0

Answer:

C. 45 degree angle

Step-by-step explanation:

let AB be the height of the wall and CD be the height of boy

with BC as distance between them.

we have AE = AB-BE = 3.64-1.54 = 2.1m

and ED = BC = 2.1m

in triangle AED, we have

tanФ = P/B = 2.1/2.1

tanФ = 1

∴ Ф = 45°

Hence the sun is elevated at an angle of 45 °.

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What is the factorization of 121b4 − 49? (11b − 7)(11b − 7) (11b 7)(11b − 7) (11b2 − 7)(11b2 − 7) (11b2 7)(11b2 − 7)
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The Factorization of 121b⁴ − 49 is (11b^2 + 7)(11b^2 - 7).

The equation 121b⁴ − 49

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<h3>What is the factor of a^2-b^2?</h3>

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brainly.com/question/25829061

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2 years ago
What is the 7th term in the sequence Below - 11,-4,3,10,17,24​
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Greetings!

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Hope this helps.
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