3 years ago

What is d equal to ? Please help

Mathematics

1 answer:

Alecsey [184]3 years ago

7 0

24 because it's equivalent to the triangle across

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A tourist in ireland wants to visit seven different cities. if the route is randomly selected, what is the probability that the

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We have that
n----------> number of cities
the probability that the tourist will visit the cities in alphabetical order is (1/n<span>!)

P=</span>(1/n!)
n!-------------> (7*6*5*4*3*2*1)=5040
therefore
1/5040=0.000198-----------> (five decimal places)--------> 0.00020 (0.020%)

the answer is 0.00020 (0.020%)

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16 multiplied by 3/4 is greater,equal or less than 16 ??

mrs_skeptik [129]

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Can someone explain this

dolphi86 [110]

<h3>Answer: 28</h3>

=========================================================

Explanation:

Let x be the unknown angle we want to find. This angle is in degrees.

The diagram shows 19 is the opposite of this angle, and the side 35 is adjacent to the angle.

We use the tangent ratio to tie the two sides together

$\tan(\text{angle}) = \frac{\text{opposite}}{\text{adjacent}}\\\\\tan(x) = \frac{19}{35}\\\\x = \tan^{-1}\left(\frac{19}{35}\right)\\\\x \approx 28.4956386\\\\x \approx 28\\\\$

Note: The notation $\tan^{-1}$ refers to the inverse tangent, or arctangent.

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Please help with #9. I have the correct answer but not sure how to get there.

abruzzese [7]

You did the problem perfect good job

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