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Otrada [13]
3 years ago
12

Which expression shows the distance on the number line between −12 and −1 ?

Mathematics
1 answer:
Naddik [55]3 years ago
6 0

Answer: A or D i think sorry if wrong but a i think

Step-by-step explanation:

but The distance between A and B = |B - A|

We have -12 and -1.

Substitute:

|-1 - (-12)| = |-1 + 12| = |11| = 11

Answer: 11 units

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In a cave, a stalactite gets 44 millimeters longer each year. this year it is 72 centimeters long. how many years until it is 1
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Answer:

6.36 years (the .36 repeats), so rounded is 6.4.

Step-by-step explanation:

First, I'm going to convert all measurements to meters.

Since 1000 mm = 1 m, divide 44 by 1000.

44/1000 = 0.044 m

Since 100 cm = 1 m, divide 72 by 100.

72/100 = 0.72 m

Next, I'm going to setup an equation using y = mx + b.

b is the beginning amount which is 0.72.

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y represents the total which is 1.

Plugin the numbers and solve for x.

1 = 0.044x + 0.72

1 - 0.72 = 0.044x + 0.72 - 0.72

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7 0
2 years ago
In one type of state lottery 5 distinct numbers are picked from 1,2,3,...,40 uniformly at random.
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a) The sample space consists of all numbers 1-40.

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b)

If we pick exactly 3 even number then that means other 2 will be odd.

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Now we have to pick 3 even out of 20 and 2 odd out of 20.

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Probability= 0.33

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