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kirill [66]
3 years ago
15

What is the greatest common factor of 19x7 and 3x5?

Mathematics
2 answers:
jarptica [38.1K]3 years ago
7 0

Answer:

GCF =   x^{5}.

Step-by-step explanation:

Given : 19 x^{7} , 3x^{5} .

To find : What is the greatest common factor

Solution : We have given that 19 x^{7} , 3x^{5} .

The greatest common factor is the product of the highest common factors in each number.

We can write x^{7}  as  x^{5} * x^{2}

Factor of 19x^{7} = 1 , 19 ,  x^{5} , x^{2} .

Factor of 3x^{5} .= 1 , 3,  x^{5}.

So, GCF = 1 ,  x^{5}.

Therefore,  GCF =   x^{5}.

grandymaker [24]3 years ago
6 0
Simple,

first find what 19*7 and 3*5 is,

19*7=133
and
3*5=15

Factors in 133:
1,7,19,133

Factors in 15:
1,3,5,15

The GCF of 133 and 15 is 1. You can't simplify/reduce it anymore.
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Answer:

a) 0.5476

b) 0.0676

c) 0.4524

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Given this information, we can conclude that 74% of the cars won't need any repairs over a 1-year period (100 - 20 - 5 - 1 = 74%). And 26% will need at least 1 repair over a 1-year period.

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If you own two cars, the probability that:

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We need that car 1 won't need repair AND car 2 won't need repair.

=P(Car 1 doesn't need repair) x P(Car 2 doesn't need repair)

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<u>b) Both will need repair:</u>

We need that car 1 needs repair AND car 2 needs repair.

P(Car 1 needs repair) x P(Car 2 needs repair)

= 0.26 x 0.26 = 0.0676

The probability that both will need repair is 0.0676

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Car 1 needs repair or Car 2 needs repair or both need repair.

To solve this one, it's easier to use the complement of P(neither needs repair)

1 - P(neither needs repair)

1 - (0.74)(0.74)  = 1 - 0.5476 = 0.4524

The probability that at least one car will need repair is 0.4524

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