2 years ago

Find x =

Mathematics

1 answer:

olga nikolaevna [1]2 years ago

5 0

If they proportional, it implies

(x+2)/(x-1) = 8/10

Or 10x +20 = 8x-8

Or 2x = -28 or x = -14

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Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes. If 8 adult smartphone use

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Answer:

≈ 0.2526

Step-by-step explanation:

The number of combinations of 4 out of 8:

8C4 = 8!/(4!(8-4)!)= 8*7*6*5/(1*2*3*4)= 70

Success factor is:

57% = 0.57

and failure factor is:

(100 - 57)%= 43%= 0.43

Probability:

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Answer:

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Answer:

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

What is value of x? Please help! Will reward

vazorg [7]

x = 50

The angles shown are vertically opposite and thus equal

so 3x - 30 = 2(x + 10)

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3 years ago

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