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777dan777 [17]
3 years ago
14

La parte superior de un edificio de 48m de altura es observada bajo un ángulo de elevación de 53°. ¿Cuál es la distancia entre e

l observador y el pie del edificio? *
Mathematics
1 answer:
mrs_skeptik [129]3 years ago
5 0

Answer:

what are you saying

Step-by-step explanation:

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$0.23 or D

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The area of a square is 900cm, Find the perimeter
Olegator [25]

Answer:

3600

Step-by-step explanation:

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2 years ago
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Which equation could be solved using this application of the quadratic formula? A. -2x2 â’ 8 = 10x â’ 3 B. 3x2 â’ 8x â’ 10 = 4 C
hodyreva [135]

The given question can be solve using quadratic formula.

The correct option is (c) 3x^2 +8x -10=-8.

Given:

The given equation is,

x=\dfrac{-8\pm\sqrt{8^2-4(3)(-1)}} {2(3)}---------------------------(1)

Write the general quadratic equation.

ax^2 + bx +c=0

Write the quadratic formula.

x  =\dfrac {-b \pm  \sqrt{(b^2 - 4ac)} } {2a}------------------------------- (2)

Compare equation (1) and (2).

a=3\\b=8\\c=-2

Substitute the value of a, b and c in general quadratic.

3x^2 +8x -2=0

Subtract 8 from each side of above equation.

3x^2 +8x -2 -8=0-8\\3x^2 +8x -10=-8

Thus, the correct option is (c) 3x^2 +8x -10=-8.

Learn more about quadratic equation here:

brainly.com/question/17177510

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2 years ago
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