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Lelechka [254]
3 years ago
14

A 14.5-m fire truck ladder is leaning against a wall. Find the distance d the ladder goes up the wall (above the fire truck)

Mathematics
1 answer:
UkoKoshka [18]3 years ago
8 0

Answer:

h = 7.47 m

Step-by-step explanation:

According to the question, we have a right triangle formed by the ladder with the wall and the floor.

The length of the ladder is the hypotenuse and the desired height is the opposite. This is due to the fact that "the ladder makes an angle of 21" 27" with the horizontal". Then, the trigonometric ratio to use is sine:

sin(\theta)=\frac{opposite}{hypotenuse}

Using the values given:

sin(\21"27")=\frac{h}{14.5}

Multiplying both sides by 14.5:

14.5*sin(\21"27")=14.5*\frac{h}{14.5}

14.5*sin(\21"27")=h

Then h = 7.47 m

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Step-by-step explanation:

First, you need to find out how much one can cost. To do that, you need to divide 12 by 6. You should get 2. Now you know that one can cost $2. To figure out the price of 19 cans, just multiply the price of one can by 19:

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Step-by-step explanation:

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Be specific and try!
Darya [45]
I just used PEMDAS. It was easy.

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Some ppl might think this is easy
ratelena [41]
Point-slope form: y - 5 = (-1/5)(x - 7)

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