Can anyone help me with this?? i dont know how to get letter h.

Mathematics

1 answer:

MAVERICK [17]2 years ago

4 0

This can be solved by using the 30 60 90 triangle. The 30-60 side is equal to 2x, here it is 2x=18. The 60-90 side is equal to x. So this side is 18/2=9. The 30-90 side is by the way equal to the root of x, so here the root of 18

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find each unit rate round to the nearest hundredth if necessary on a hundred and $140 for 18 ft squared

Marina86 [1]

Divide both by 18.
140/18=7.78 

So... $7.78 per foot

4 0

3 years ago

An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 23 feet up. The

leva [86]

The length of the ladder that makes an angle of 75 degrees and lies against the wall of a house that's 23 feet tall is approximately 25.88 feet.

The ladder forms a right triangle as it lies against the wall as shown in the image below.

Thus:

x = length of the ladder (hypothenuse)

Reference angle $(\theta) = 75^{\circ}$

25 ft = Opposite

Apply SOH:

Thus,

$sin(\theta) = \frac{Opposite}{Hypotenuse}$

Plug in the values

$sin(75) = \frac{25}{x}\\\\x = \frac{25}{sin(75)} \\\\\mathbf{x = 25.88}$

Therefore, the length of the ladder that makes an angle of 75 degrees and lies against the wall of a house that's 23 feet tall is approximately 25.88 feet.

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brainly.com/question/23973168