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Vika [28.1K]
3 years ago
14

What is the length of ? Round to the nearest tenth.

Geography
2 answers:
Bogdan [553]3 years ago
8 0

Using basic trigonometry we can write an equation in COS.

Taking 75° as the angle, its adjacent side is given and we need to find hypotenuse (x). Hence, we use cosine.


We know cos x=\frac{adjacent}{hypotenuse}, so we can write,

cos 75 = \frac{10}{x} \\x=\frac{10}{cos 75} \\x=\frac{10}{0.2588} \\x=38.64

The length of x, rounded to one decimal place, is 38.6 meters. Fourth choice is correct.


ANSWER: 38.6 m

Svetlanka [38]3 years ago
4 0

Answer:

D.

Explanation:

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<h2>Answer:</h2><h3>Effects of global warming on the economy are:-</h3>
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<h2>Explanation:</h2>

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andrew11 [14]

1. Galapagos

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Hope this helps!

6 0
3 years ago
What might prehistoric pottery and tools tell researchers about the people who made those items?
fgiga [73]

<u>Answer:</u>

The people in the past used to make use of pots for various reasons like to cook food, store food, and to store water also. These pots were made in different shapes and sizes and were decorated well which showed the artistic side of these people and their way of using the things properly. It also told the archaeologist about the people of different times and civilization with the help of the pots of those periods.

8 0
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Knowing that is 150 meters (about 450 feet) from the waste dump to the homes that existed in 1978, estimate how long it took for
kari74 [83]

Answer:

\large \boxed{\text{About 50 yr}}

Explanation:

\text{Time} = \text{150 m} \times \dfrac{\text{100 cm}}{\text{1 m}}\times \dfrac{\text{1 s}}{ 10^{-5}\text{ cm}} \times \dfrac{\text{1 da}}{\text{86 400 s }} \times \dfrac{\text{1 yr}}{\text{365.25 da}}\approx \text{50 yr}\\\\ \text{It took $\large \boxed{\textbf{about 50 yr}}$ for the waste to move from the dump to the homes.}

4 0
3 years ago
(10x-5)+(2x+6)=61 solve for x
blondinia [14]
X would equal 5. (need more characters)
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