3 years ago

Exponents and scientific notation

Mathematics

1 answer:

jarptica [38.1K]3 years ago

5 0

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Add & sub fractions 7 8/9 - 2 2/3

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Solution for the given fractions

7/9 + 2/3 = ?

The common denominator of the two fractions is: 9

7/9 = (1*7)/(1*9) = 7/9

2/3 = (2*3)/(3*3) = 6/9

Fractions adjusted to a common denominator

7/9 + 2/3 = 7/9 + 6/9

(6+7)/9 = 13/9

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LabTech is a company that manufactures microscopes and other laboratory instruments. On (Ipoint) occasion, one of the microscope

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Answer:

probability of 1st defective = 0.844

correct option is d. 0.844

Step-by-step explanation:

given data

probability defective = 0.17%

undefective microscopes = 100

to find out

the probability that the first defective microscope

solution

we know defective probability P = 0.17% = 0.0017

so non defective probability (1-P) = 1 - 0.0017

non defective probability (1-P) = 0.9983

and

1st defective come after 100 it mean 1st 100 are non defective so

probability of 1st defective = $(1-P)^{100}$

probability of 1st defective = $(0.9983)^{100}$

probability of 1st defective = 0.844

so correct option is d. 0.844

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