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____ [38]
3 years ago
14

A ladder 15 feet long leans against a wall and forms an angle of 45º with the ground. How far from the wall is the ladder?

Mathematics
2 answers:
bezimeni [28]3 years ago
7 0
The ladder is the hypotenuse of a 45 45 90 triangle.
The legs of a 45 45 90 triangle = hypotenuse / sqroot (2)

15 / 1.414 = 10.608

(Incidentally it is the "bottom" of the ladder that is 10.608 feet from the wall.  The "top" of the ladder is touching the wall.  LOL)

Vikki [24]3 years ago
5 0

Answer:

The foot of the ladder is 10.60 feet from the wall.

Step-by-step explanation:

A ladder 15 feet long leans against a wall and forms an angle of 45º with the ground.

The 15ft ladder forms a 45,45,90 degree right triangle with itself ; being the hypotenuse, the ground and the wall. This triangle has it's sides in the ratio of  1,1,√2

So, we know two sides will be same length and one side is 15 feet.

So, the ladder is (15\sqrt{2}) /2 feet from the wall .

Also the ladder goes same (15\sqrt{2}) /2 feet up the wall.

This becomes:

(15\times1.414)/2=10.60 feet

Hence, the measurements are 10.60 feet, 10.60 feet and 15 feet.

The foot of the ladder is 10.60 feet from the wall.

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Answer

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3 years ago
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Nuetrik [128]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Please help and thank you
kondaur [170]

Answer:

Step-by-step explanation:

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2 years ago
A treatment is administered to a sample of n = 9 individuals selected from a population with a mean of µ = 80 and a standard dev
stepan [7]

Answer:

a) M =82

Step-by-step explanation:

Let´s study this as a Normal distribution.

As we know in a normal distribution the z score is = (X-μ)/(sd/sqrt(n))

where

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μ = Total population mean =80

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3 years ago
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Answer:

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