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rusak2 [61]
3 years ago
6

For questions 1- 3 find the exact sum or difference.

Mathematics
1 answer:
7nadin3 [17]3 years ago
6 0
D, Because 7/15 + 9/15 is 16/15 + 4/15 =20/15 which equals 1 5/15 which turns into 1 1/3
A, 1/21 + 2/21 = 3/21 and that equals 1/7

C, 3/14+3/12 turns into 3/14+5/14= 10/14 - 8/14= 2/14=1/7
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a test for a certain drug has a 0.1% probability of producing a false positive. if a company hired 500 drug-free employees, what
Natasha_Volkova [10]

The probability of obtaining at least 1 false positive if the number of employees is 500 is 0.5

Probability

In the statistics concept, the probability refers the possible number of way of happening the particular event.

Given,

A test for a certain drug has a 0.1% probability of producing a false positive.

Here we need to find  the probability of obtaining at least 1 false positive if  a company hired 500 drug-free employees.

In the given question, we have the following values,

=> number of employees = 500

=> Probability of false positive = 0.1%

So, the probability of obtaining at least 1 false positive is calculated as,

=> 500 x 0.1/100

=> 5 x 0.1

=> 0.5

Therefore, the probability of obtaining at least 1 false positive is 0.5.

To know more about Probability here.

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6 0
1 year ago
Is 19 equal to 4.358
AURORKA [14]

Answer:

No

Step-by-step explanation:

19=19 and 4.358=4.358

7 0
2 years ago
A professor compares the number of students at his school majoring in statistics, engineering, both, or neither.
Ymorist [56]

Answer:

Step-by-step explanation:

3

5 0
3 years ago
The area of a particular rectangle is 72. If the length of the rectangle is twice
soldier1979 [14.2K]

Answer:

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Step-by-step explanation:

Suppose the width is "a".  Then the length is 2a.

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4 0
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The points (-7,-8) and (8,-8) fall on a particular line. What is its equation in slope-intercept form?​
stepan [7]
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