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maxonik [38]
3 years ago
14

Determine the sum of the given probabilities. Are the events complementary?

Mathematics
1 answer:
Paraphin [41]3 years ago
3 0

5/7 The events are not complementary

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The table to the right shows selected ages of licensed drivers in one country and the corresponding percentiles. Find the percen
PolarNik [594]

Answer:

66%

Step-by-step explanation:

Given :

Age          Percentile

75           97

65           90

55           78

45           58

35           37

25           13

20           66

To Find :The percentage of drivers who are younger than 20 is _____%.

Solution:

Refer the given table

The percentile corresponding to age 20 is 66.

Percentile : A data item is said to be in nth percentile of distribution if n% of the distribution are less than that particular data item.

So, drivers who are younger than 20 are said to be in 66 percentile if 66%of the distribution are less than that particular data item.

Hence The percentage of drivers who are younger than 20 is 66%.

7 0
3 years ago
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PLEASE HELP!!
madam [21]

Answer:

k=2/3

Step-by-step explanation:

Step 1:

Step 1 in solving the exponential equations is re-writing the base same as other side of the equation

so,

25^{3k}=625\\=> 25^{3k}=25^2

Step 2:

Second step is equating the exponents

The rule used is:

If\ B^m=B^n\ then\ m=n

So in this case

3k=2\\k = \frac{2}{3}

So the solution is:

k=2/3 ..

3 0
3 years ago
According to the square root property, the solution set of x 2 = 25 is {±5}.<br> True<br> False
babymother [125]
I believe the correct answer is true. According to the square root property, the solution set of x^2 = 25 is {±5}. <span>The </span>square root property<span> is one method that is used to find the solutions to a quadratic (second degree) equation. This method involves taking the </span>square roots <span>of both sides of the equation. Hope this answers the question.</span>
8 0
3 years ago
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What is 5x55x6x8x9x9999-131,986,800+9000+1=
jenyasd209 [6]
1,187,888,284 hope this helped (:
8 0
2 years ago
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Factorize<br>8x²+10x-12 = ???<br><br>Juste tell me if(4x-3) (x+2) is the right answer please.
MrMuchimi
No it is wrong
the product of it is
4x²+5x-6
so you have to multiply by 2
the naswer is 2(4x-3)(x+2)
4 0
3 years ago
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