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stellarik [79]
3 years ago
8

A die is rolled 30 timeswhat is the probability of getting x even number

Mathematics
1 answer:
Mama L [17]3 years ago
6 0
Probability of getting an even number (2,4,6) out of (1,2,3,4,5,6) =3/6=1/2

The probability of getting x even number :
(using the binomial probability)


30Cx (1/2)^x . (1/2)^(30-x)
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Fiesta28 [93]
<span>The solution to the problem is as follows:

W=Fd=mad=425*1.8*66 =50490 J

Therefore, it takes </span><span>50490 J of work the crane will do to accelerate the beam upward at 1.8 m/s^2.

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3 years ago
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Add/Subtract the following polynomials.<br> 1. (3x^2– 5x) + (-x^2- 7X +5)
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Answer:

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Step-by-step explanation:

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cestrela7 [59]

Step 1

<u>Find the irreducible fraction in each ratio</u>

<u>case 1)</u>  \frac{40}{64}

Divide by 8 boths numerator and denominator

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<u>case 2)</u>  \frac{5}{75}

Divide by 5 boths numerator and denominator

\frac{5}{75}=\frac{1}{15}

<u>case 3)</u>  \frac{14}{35}

Divide by 7 boths numerator and denominator

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<u>case 4)</u>  \frac{24}{64}

Divide by 8 boths numerator and denominator

\frac{24}{64}=\frac{3}{8}

<u>case 5)</u>  \frac{6}{15}

Divide by 3 boths numerator and denominator

\frac{6}{15}=\frac{2}{5}

<u>case 6)</u>  \frac{65}{104}

Divide by 13 boths numerator and denominator

\frac{65}{104}=\frac{5}{8}

<u>case 7)</u>  \frac{66}{176}

Divide by 22 boths numerator and denominator

\frac{66}{176}=\frac{3}{8}

<u>case 8)</u>  \frac{12}{30}

Divide by 6 boths numerator and denominator

\frac{12}{30}=\frac{2}{5}

<u>case 9)</u>  \frac{15}{225}

Divide by 15 boths numerator and denominator

\frac{15}{225}=\frac{1}{15}

<u>case 10)</u>  \frac{6}{16}

Divide by 2 boths numerator and denominator

\frac{6}{16}=\frac{3}{8}

<u>case 11)</u>  \frac{15}{24}

Divide by 3 boths numerator and denominator

\frac{15}{24}=\frac{5}{8}

<u>case 12)</u>  \frac{48}{128}

Divide by 16 boths numerator and denominator

\frac{48}{128}=\frac{3}{8}

Step 2

<u>Sort the ratios into bins</u>

1<u>) First Bin</u>

<u>Ratio=\frac{5}{8} </u>

\frac{40}{64}

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<u>2) Second Bin </u>

<u>Ratio=\frac{1}{15} </u>

\frac{5}{75}

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<u>3) Third Bin</u>

Ratio=\frac{2}{5}

\frac{14}{35}

\frac{6}{15}

\frac{12}{30}

4<u>) Fourth Bin</u>

<u>Ratio=\frac{3}{8} </u>

\frac{24}{64}

\frac{66}{176}

\frac{6}{16}

\frac{48}{128}

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Answer:

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