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Ann [662]
3 years ago
9

I NEED HELP SOMEONE PLZZZ HELP ME PLZZZZ

Mathematics
2 answers:
Lina20 [59]3 years ago
7 0

Answer:

3

Step-by-step explanation:

sukhopar [10]3 years ago
7 0

Answer:

h = √18 (4.24)

Step-by-step explanation:

Theorem = a² + b² = c²

√34 - 4² = a²

√34 - 16 = a

√34 - 16 = 18

√18 = 4.2426406871192851464050661726291 (Rounded to nearest hundreth: 4.24; nearest tenth: 4.2; nearest one: 4)

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Do alto de um farol cuja altura é de 20 m avista se um navio sob ângulo de depressão de 30°. A que distância , aproximadamente,
Mkey [24]
Esta é a trigonometria . Se você desenhar uma linha a partir do topo da casa de luz para o barco, você terá a hypotonuse de um triângulo. Um truque é lembrar que este é um triângulo especial. É um triângulo 30-60-90 , que tem propriedades especiais mostradas na fixação abaixo . por isso sabemos que o lado adjacente que não é o hyposonuse é x√3 . Agora sabemos que x<span>√3 = 20
Solve for x.
x</span><span>√3=20
divide both sides by </span><span>√3.
x=20/(</span><span><span>√3)
</span>Try not to have square roots (</span><span><span>√)</span> in denomenator so multiply top and bottom by </span><span>√3 and get
x=(20</span><span>√3)/3
x is what we are looking for so the answer is </span>
20<span>√3 m </span><span>ou cerca de 34.64 m</span>










7 0
4 years ago
A picture shows the net of the lateral surface of the cone. Which statement about this cone is NOT true?
Archy [21]

Answer:

The area of the net is not π • 9^2

:P no explanation for u

7 0
3 years ago
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BaLLatris [955]

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Step-by-step explanation:

8 0
2 years ago
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Gala2k [10]
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mariarad [96]

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Step-by-step explanation:

Special triangle. 1:1:\sqrt{2}

8 0
3 years ago
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