2 years ago

What should be done so that the expression will have a value of 10?

Mathematics

2 answers:

ra1l [238]2 years ago

6 0

Answer:

Naruto usamaki is the greatest hokagey in the leaf village

Thepotemich [5.8K]2 years ago

6 0

Answer:

Add parentheses around 2 + 2.

Step-by-step explanation:

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Step-by-step explanation:

Given that,

The length of a ladder, H = 20 feet

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We know that,

$\sin\theta=\dfrac{h}{H}$

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So,

$\sin\theta=\dfrac{15}{20}\\\\\theta=\sin^{-1}(\dfrac{15}{20})\\\\\theta=48.59^{\circ}$

Now using Pythagoras theoerm,

$b=\sqrt{H^2-h^2}\\\\b=\sqrt{20^2-15^2}\\\\b=13.2\ ft$

Hence, the angle made by the ladder and the ground is 48.59° and the ladder is 13.2 feet from the wall on the ground.

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