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Flauer [41]
3 years ago
15

I dont understand please help

Mathematics
1 answer:
vredina [299]3 years ago
8 0

Answer:

0.15%

hope this helps!!

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40 employees in an office wear eyeglasses. 22 have single-vision correction, and 18 wear bifocals. If two employees are selected
ale4655 [162]

Step-by-step explanation:

The number of way to select 2 employees from 40 is 40C2.

The number of way to select 2 employees from 22 is 22C2.

So the probability of the two employees having single-vision correction is just the number of ways to select the 22 employees (22C2) divided by the total number of ways to select 2 employees (40C2).

22C2 / 40C2 = 77/260

We can use the same technique for the bifocal employees.

18C2 / 40C2 = 51/260

8 0
3 years ago
Line e passes through points (7, 6) and (10, 2). Line f is parallel to line e. What is the slope of line f?
lara31 [8.8K]

Answer:

Line f has the same slope, -4/3

Step-by-step explanation:

First find the the slope of line e

m = (y2-y1)/(x2-x1)

    = (2-6)/(10-7)

    = -4/3

Since the lines are parallel, they have the same slope

Line f has the same slope, -4/3

6 0
3 years ago
Read 2 more answers
What number has the same value as [5]
prohojiy [21]
<h2>Answer:</h2>

None. 5 is a PRIME NUMBER.


4 0
4 years ago
40k+36=? <br> ivbuivbr vpui34vb[ervb[uir3bv34
kobusy [5.1K]

Answer:

0

Step-by-step explanation:

40k =  - 36

k =  -  \frac{9}{10}

40( -  \frac{9}{10} ) + 36 = 0

- 36 + 36 = 0

4 0
3 years ago
Solve please 9 to the second power =97 . Is the awnser a rational number ?
Alinara [238K]

Answer:

yes becauss it can be expressed as a ratio

Step-by-step explanation:

4 0
3 years ago
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