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3 years ago

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In 2004,there were 320 endangered mammals in the world about 75% of these mammals reside outside of the United States.about how

many endangered mammals are not in the United States?

1 answer:

Troyanec [42]3 years ago

4 0

240 endangered mammals do not live in the united stated

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Please help! 30 points!

Rashid [163]

Answer: $64.2^{\circ}$

Step-by-step explanation:

According to the cosine rule

$\cos C=\dfrac{a^2+b^2-c^2}{2ab}$

Here, $a=83, b=111, c=165,\ C=180^{\circ}-\theta$

Putting values

$\Rightarrow \cos (180^{\circ}-\theta)=\dfrac{83^2+111^2-165^2}{2\times 83\times 111}\\\\\Rightarrow \cos(180^{\circ}-\theta)=\dfrac{6889+12321-27225}{18426}\\\\\Rightarrow \cos(180^{\circ}-\theta)=\dfrac{-8015}{18426}=-0.4349\\\\\Rightarrow 180^{\circ}-\theta=\cos^{-1}(-0.4349)=115.77^{\circ}\\\Rightarrow \theta=64.23\approx 64.2^{\circ}$

So, the ship turns by $64.2^{\circ}$ north of west

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3 years ago

Help I need this now

Deffense [45]

Answer:

22m

Step-by-step explanation:

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3 years ago

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Marsha recorded the time it took seven children of different ages to run one lap around the track.

max2010maxim [7]

The answer is C. 205.

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2 years ago

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6. I need help<br> I don't know the answer

12345 [234]

There you hope s this help

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3 years ago

A friend of yours claims that he can control the roll of a die, increasing his probability of rolling a six. you decide to put h

lana66690 [7]

Answer: No, I do not believe that there is enough convincing evidence to proof that he can control the dice.

When you roll a die, there is a 1/6 probability that you will roll a 6. If you multiply 50 by (1/6) you would expect your friend to roll at least 8 sixes.

He only rolled 3 more sixes than was expected. I would have him roll 50 more times at least to see how he does.

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3 years ago