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3 years ago

3 cars are washed 27 minutes at a car wash

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

8 0

Answer:

Each car takes about 9 minutes to be washed.

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What is hypotenuse? Need to get a good answer ASAP

vodka [1.7K]

Answer:

Hypotenuse is the longest side of a right-angled triangle, the side opposite the right angle.

Step-by-step explanation:

The length of the hypotenuse can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the other two sides.

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2 years ago

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Answer:

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Step-by-step explanation:

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The number of subsets that can be created from the set {1, 2, 3} is

omeli [17]

No of substes is given by 2^n where n is the no of elements.
Here, n = 3

Therefore, number of subsets = 2^3 = 8

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3 years ago

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Step-by-step explanation:

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2 years ago

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A ladder is leaning against a wall. The top of the ladder is 9 feet (ft) above the ground. If the bottom of the ladder is moved

Komok [63]

Step 1

First situation

when a ladder is leaning against a wall

Let

x-------> the distance of the bottom of the ladder from the wall

L-------> the length of the ladder

Find the length of the ladder

Applying the Pythagorean Theorem

$L^{2} =x^{2}+ 9^{2}$ ------> equation $1$

Step 2

Second situation

when the ladder will be lying flat on the ground

Find the length of the ladder

In this situation the length of the ladder is equal to

$L=x+3$

square both sides

$L^{2}=(x+3)^{2}$ ------> equation $2$

Step 3

equate equation $1$ and equation $2$

$x^{2}+ 9^{2}=(x+3)^{2}\\x^{2}+81=x^{2} +6x+9\\ 6x=81-9\\6x=72\\x=12\ ft$

therefore

the answer is

the length of the ladder is $12\ ft$

see the attached figure to better understand the problem

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3 years ago