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3 years ago

IF SOMEONE ANSWERS THIS ILL GIVE BRAINLIEST THANKS AND ILL FRIEND 9.5x (3 + 4x) divided by 2 + 17x = 138.5 what is x

Mathematics

1 answer:

Dmitrij [34]3 years ago

3 0

Answer:

-0.119

48.577

Step-by-step explanation:

9.5x (3 + 4x) /(2 + 17x) = 138.5

19x(3+4x)/(2+17x)=277

57x+96x²=277(2+17x)

96x²+57x=554+4709x

96x²- 4652x-554=0

solving the quadratic equation:

x =(2326-√5463460)/96=(1163-√ 1365865 )/48= -0.119

x =(2326+√5463460)/96=(1163+√ 1365865 )/48= 48.577

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Step-by-step explanation:

The experimental probability of an event is written as :

P = number of times event occur / total number of trials

Experimental probability is based on the outcome of an experiment that has taken place.

Theoretical probability is based on expected outcome of an event.

P = number of expected or required outcomes / total possible outcomes

Experimental probability of choosing the name Michael is :

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If the number of names in hat was different from 7, then the theoretical probability will change.

Also, if the number of times a name was chosen was different from 100, then number of trials will also change and hence, the experimental probability.

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