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Dima020 [189]
2 years ago
13

Help asap!!!!!

Mathematics
1 answer:
svetlana [45]2 years ago
7 0

Answer:

12.5

30

68.5

Step-by-step explanation:

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If you have five red balls and five blue balls in a jar what’s the probability of the first ball being red?
rosijanka [135]

Answer:

red balls = 5

blue balls = 5

total balls = 5 blue+5 red

= 10

p(first \: ball \: being \: red) =  \frac{red \: balls}{total \: balls}

p(first \: ball \: being \: red) =  \frac{5}{10}  =  \frac{1}{2}

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3 years ago
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Please help me with this question
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Answer:

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Step-by-step explanation:

x1 = cos^-1 (3/5)

x1= 53.13°

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5 0
3 years ago
Find the slope of the following graph and write ur results in the empty box.
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You purchased 100 shares of stock valued at $55 per share. The stock value increases to $85 per share. What was the rate of incr
guapka [62]
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Explanation:
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6 0
3 years ago
A light bulb factory produces 922 light bulbs every hour. Approximately 3.34% of the light bulbs are defective, and do not work.
Nikitich [7]

Answer:

The value is  \sigma = 5.46  

Step-by-step explanation:

From the question we are told that

  The number of light produced in an hour is  n  =  922

  The proportion of the bulb that are defective is  p =  0.0334

  Generally given from the question that we should use binomial distribution it then means that the standard deviation is mathematically evaluated as  

           \sigma = \sqrt{ n  *  p  (1-p)}

=>         \sigma = \sqrt{ 922  *  0.0334 *  (1-0.0334)}

=>         \sigma = 5.46  

8 0
3 years ago
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