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3 years ago

Hi! Please do ALL problems for 50 pts and brainlest:)

Mathematics

2 answers:

SCORPION-xisa [38]3 years ago

6 0

Answer:

1. 125

2. 2/73≈0.02739726

3. 27.77

4. IM SORRY IDK THE ABOUT THE WORD PROBLEM

Step-by-step explanation:

1. Multiply 1/2=0.5 and 250 to get 250/2=125.

2. Reduce the fraction 42/1533≈0.02739726 to lowest terms by extracting and canceling out 21; 2/73

3. Add 19.17 and 8.6 to get 27.77.

27.77

please give me the brainliest answer!!!!!!!!!!!!!!

Harlamova29_29 [7]3 years ago

5 0

Answer: 1. 125

2. 36.5

3. 27.77

1. 4/9 left of the pizza

Step-by-step explanation: Hope this helped! :)

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Gabby is buying flowers for a friend. She can choose daisies, carnations, or sunflowers. She can put the flowers in a clear, red

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disa [49]

Answer:

$E(X)=\sum_{i=1}^n X_i P(X_i)$

And if we use the values obtained we got:

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Step-by-step explanation:

For this case we assume the following probability distribution:

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First we need to find the expected value (first moment) and the second moment in order to find the variance and then the standard deviation.

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And if we use the values obtained we got:

$E(X)=5*0.05 +6*0.15 +7*0.33 +8*0.28+ 9*0.12 +10*0.07=7.48$

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$Sd(X)=\sqrt{Var(X)}=\sqrt{1.5096}=1.229$

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