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blsea [12.9K]
2 years ago
10

Can you help me solve this problem & write my answer in simplest radical form.

Mathematics
1 answer:
olga55 [171]2 years ago
3 0

Answer:

18

Step-by-step explanation:

30-60-90 triangles have a set of x values that you can plug your numbers into.

we know that the side length opposite to 30 is x

the side length opposite to 60 is xsqrt3

the side length opposite to 90 is 2x

from this we can gather that y=2x where x=9 therefore y=18

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How many different twotwo​-letter passwords can be formed from the letters
Anna [14]

Answer:

70

Step-by-step explanation:

GIVEN: two two​-letter passwords can be formed from the letters  A, B, C, D, E, F, G and H.

TO FIND: How many different two two​-letter passwords can be formed if no repetition of letters is​ allowed.

SOLUTION:

Total number of different letters =8

for two two​-letter passwords 4 different are required.

Number of ways of selecting 4 different letters from 8 letters=^8C_4

                                                                                                   =\frac{8!}{4!4!}

                                                                                                  =70

Hence there are 70 different two-letter passwords can be formed using 8 letters.

5 0
3 years ago
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</span>
6 0
3 years ago
Favorite Book Types
Zinaida [17]

Answer:

39

Step-by-step explanation:

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6 0
3 years ago
Which Function Has the greatest rate of change?
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Answer:  A. Functions A

Step-by-step explanation:

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8 0
2 years ago
What is the anwser to -20x &gt; -400
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-20x > -400 \ |:(-20) \\\\ x < 20 \\\\ \boxed{x=(-\infty;20)}
3 0
3 years ago
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