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grandymaker [24]

2 years ago

15

What is the angle of elevation for 9 foot ladder leaning against a wall if the ladder is placed 2 feet away from the base of the

wall?

1 answer:

Natali [406]2 years ago

8 0

Answer:

77°

Step-by-step explanation:

basically, this trigonometry problem deals with having a right triangle and knowing the value of the adjacent side and the hypotenuse

so you need to find cos⁻¹(2/9) which equals 77 degrees

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1. What is the value of x? Do not convert to decimal. Keep your answer in exact (radical) form. Show all of your work. This is P

lesya [120]

Answer:

The value of x is $\sqrt{113}$ .

Step-by-step explanation:

It is given that hypotenuse is $\sqrt{177}$ . So, the legs would be x and 8.

Let's use Pythagoras theorem,

$a^{2} +b^{2} =c^{2}$

Plug in the numbers to solve for x.

$x^{2} +8^{2} =\sqrt{177} ^{2}$

Simplify it

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Take square root on both sides

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We can not simplify the radical.

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