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Zarrin [17]
3 years ago
12

Una persona de 1,60 m observation el asta de una bandera con un angulo de elevacion 30 si se encuentra a 3 del pie del asta que

altura tiene el asta
Mathematics
1 answer:
noname [10]3 years ago
5 0

Answer:

3,332 meters

Step-by-step explanation:

The computation is shown below:

Given Data:

x = 3 m

h1 = 1.6 m

h2 =?

y: flagpole height

As we know that

y = h1 + h2

tanα = opposite leg ÷ adjacent leg

tan α = h2 ÷ x

h2 = tanα × x

h2 = tan30 ° × 3 m

h2 = 1,732 m

So, The height of the flagpole is:

y = 1.60 m + 1.732 m

y = 3,332 m

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B. 4

Step-by-step explanation:

We are looking for the coefficient of the term x⁵. When we see it in the polynomial as 4x⁵, our coefficient and answer would then be 4.

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Use complete sentences to describe why √-1 ≠ -√1
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Well let's say that to compare these two numbers, we have to start with the definition first.

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\displaystyle \large{ {y}^{2}  = x} \\  \displaystyle \large{ y =  \pm  \sqrt{x} }

Looks like we can use any x-values right? Nope.

The value of x only applies to any positive real numbers for one reason.

As we know, any numbers time itself will result in positive. No matter the negative or positive.

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\displaystyle \large{  {a}^{2}  = a \times a =  |b| }

Where b is the result from a×a. Let's see an example.

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\displaystyle \large{  {2}^{2}  = 2 \times 2 = 4} \\  \displaystyle \large{  {( - 2)}^{2}  = ( - 2) \times ( - 2) =  | - 4|  = 4}

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Then you may have a question, where does √-1 come from?

It comes from this equation:

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When we solve the quadratic equation in this like form, we square both sides to get rid of the square.

\displaystyle \large{   \sqrt{ {y}^{2} } =   \sqrt{ - 1}  }

Then where does plus-minus come from? It comes from one of Absolute Value propety.

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Then we have the square root of -1 in negative and positive. But something is not right.

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