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Triss [41]
3 years ago
11

Trigonometry help?? Thank you so much!!

Mathematics
1 answer:
liq [111]3 years ago
6 0

Answer:

7) a = 60; b = 100

8) c = 20

9) d = 45

Step-by-step explanation:

7)

a + 120 = 180

a = 60

b + 80 = 180

b = 100

8)

5c + 4c = 180

9c = 180

c = 20

9)

3d + d = 180

4d = 180

d = 45

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Tile:

<h2>See the explanation.</h2>

Step-by-step explanation:

(a)

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The coats can be returned to the accurate persons only in 1 way.

Hence, the probability that each man gets the correct coat is \frac{1}{120}.

(b)

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3 years ago
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Step-by-step explanation:

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Orlov [11]
Gallon should be correct
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Step-by-step explanation:

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The arithmetic mean (average) of four numbers is 85. If the largest of these numbers is 97, find the mean of the remaining three
Margaret [11]

Answer:

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Step-by-step explanation:

Let's do this systematically:

Four numbers: a, b, c, d

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Lets solve for the other numbers:

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340 - 97 = 243

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at this point it doesn't matter what the numbers are, they just need to add up to 243.

We can do 243÷3=81, which is our answer

3 0
3 years ago
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