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CaHeK987 [17]
3 years ago
12

Divide 4/5 by 2/3. a. 8/15b. 5/6c. 1 1/5d. 1 7/8

Mathematics
1 answer:
Ivan3 years ago
5 0
4/5÷2/3=x
4/5×3/2=x
   12/10=x 
    1 1/5=x
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Determine whether the triangles are similar. If so, name the postulate or<br> theorem you used.
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Yes, AA~

Step-by-step explanation:

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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
3 years ago
16 ÷ 8 = 2
hjlf
The answer is D. 2 x 8= 16
3 0
3 years ago
Read 2 more answers
142/80 into mixed number
Cerrena [4.2K]
80 goes into 142 once, so one is our whole number. there are still 62 / 80 left, so we reduce this fraction. The answer is 1\frac{31}{40}
8 0
3 years ago
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