2 years ago

It's question B as I've done A please help

Mathematics

1 answer:

Hatshy [7]2 years ago

4 0

Its easy.use cos rule.

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An engineer on the ground is looking at the top of a building. The angle of elevation to the top of a buliding. The angle of ele

Marysya12 [62]

$\tan( \alpha ) \: = \: \frac{h}{b}$
$\alpha \: = \: {22}^{0}$
$h \: = \: 450 \: ft$
Therefore,
$b \: = \: h \cot( \alpha )$
$b \: = \: 450 \: ft \: \times \: \cot( {22}^{0} )$
b = 450 ft × 2.47508685
b = 1,113.78908 ft
or,
b ≈ 1,114 ft.

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2 years ago

HELP PLEASE WIll GIVE A GOOD VOTE

Luba_88 [7]

Answer:

d) √2/2

Step-by-step explanation:

cos∠E= 5/5√2= 1/√2=√2/2

Correct option is d)√2/2

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2 years ago

2(4 – 16) – (–30) 2(–12) – (–30) 24 – (–30) 54

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Step-by-step explanation:

2(4 – 16) – (–30) 2(–12) – (–30) 24 – (–30) 54= 2×4-2×16 -×-30×2×-12-×-30×24-×-30= 8-32+30-24+30×24+30: 732

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2 years ago

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nata0808 [166]

Answer:

24 ft^2

Step-by-step explanation:

The small aquarium:

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The large aquarium

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2 * 5 * 3 = 30 ft^2

Difference between the larger aquarium and the smaller aquarium:

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This means that the answer to this question is a, 24 ft^2

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2 years ago

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Step-by-step explanation:

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2 years ago

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