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coldgirl [10]
3 years ago
5

Give A ={a,b,c} and B = {c, a}, which of the following is not true

Mathematics
1 answer:
Alborosie3 years ago
8 0

Answer:

The second one

Step-by-step explanation:

B c A

Because B has c and a, which is part of A (A={a, b, c})

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Last year at a certain high school, there were 100 boys on the honor roll and 60 girls on the honor roll. This year, the number
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3 years ago
Fifty-five percent of the members of the junior varsity swim team wear glasses. Of the team memebers who do not wear glasses, 30
GarryVolchara [31]

the probability that a randomly chosen member of the JV swim team does not wear glasses and is in the 10th grade is 14%.

Given, the members of the junior varsity swim team wear glasses is 55%.

And the members of junior varsity swim team who do not wear glasses and in 10th grade is 30%.

Let the total no. of members be x.

So, the members of the junior varsity swim team wear glasses (55%),will be

0.55x.

The total number of members not wearing glasses, will be

x - 0.55 x = 0.45 x.

Now, the no. of members not wearing glasses and in 10th grade will be,

\frac{0.45x\times30}{100} =0.135x

We know that the probability of an event E, P(E) will be,

P(E)=\frac{No.\ of Favourable\ outcomes}{total \ no. \ of \ outcomes}

So, the probability for no. of members not wearing glasses and in 10th grade will be,

P(E)=\dfrac{0.135x}{x}

P(E)=0.135\\\\P(E)=13.5 \%

Hence the nearest whole percent of probability is 14%.

For more details on probability follow the link:

brainly.com/question/795909

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2 years ago
PLEASE help me identify what type of quadrilateral this is please help ASAP
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Answer:

its c)

Step-by-step explanation:

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