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3241004551 [841]
2 years ago
8

Solve the equation -

{5}" align="absmiddle" class="latex-formula"> +9=13. What is w?
Mathematics
1 answer:
Tatiana [17]2 years ago
5 0

Answer:

w = -20

Step-by-step explanation:

-\frac{w}{5} + 9 = 13

Shift the (+9) to the other side of the equation. (+9) will turn into (-9).

-\frac{w}{5} = 13 - 9

   = 4

Shift the (÷5) to the other side of the equation. (÷5) will turn into (×5).

-w = 4 × 5

    = 20

Multiply both sides of the equation by (-1) so that -w will turn into w.

w = (-1) × 20

w = -20

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Answer:

distance TS ≈ 19 m (nearest meter)

Step-by-step explanation:

The point T is on the horizontal ground and the angle of elevation of the top R of a tower is 63° and the height of the tower is 38 m high. The illustration forms  a right angle triangle. The height RS of the tower is the opposite side of the triangle formed. The hypotenuse side of the triangle is the point from the ground T to the top of the tower R.  The adjacent side of the triangle is the side TS.

using tangential ratio

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cross multiply

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divide both sides by tan 63°

adjacent side = 38/tan 63°

adjacent side = 38/1.96261050551

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distance TS ≈ 19 m (nearest meter)

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