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Law Incorporation [45]
3 years ago
9

What happens when you combine -3x+2x

Mathematics
1 answer:
Elan Coil [88]3 years ago
4 0
-6 okokokokokokokokokokok
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Find the number of possible ways one can choose marbles from a bag containing three marbles: a) if the order is important b) if
vladimir1956 [14]

Answer:

There are 3 marbles, that we assume are different.

Let's define them as marble 1, marble 2, and marble 3.

a) If the order is important, and we select the 3 marbles, then:

for the first marble, we have 3 options.

For the second marble, we have 2 options (because one is already taken)

for the third marble is only one option.

The total number of combinations is equal to the product between the numbers of options, so in this case, we have:

C = 3*2*1 = 6 combinations.

Now, if we only select 2 marbles from the bag, we have:

for the first marble, we have 3 options.

For the second marble, we have 2 options

Here the number of different combinations is:

C = 3*2 = 6 combinations.

And if we select only one marble from the bag, we have:

for the first marble, we have 3 options.

Then here are only 3 combinations.

the total number of combinations is:

C' = 6 + 6 + 3 = 15 different combinations.

b) If the order is not important, then there is only one combination when we draw the 3 marbles.

When we draw one marble there are 3 combinations (one for each marble)

When we draw two marbles, again there are 3 combinations (one for each marble that we do not draw)

then the total number of combinations in this case is:

C = 1 + 3 + 3 = 7

3 0
3 years ago
Last night at 8pm in Chicago, the temperature was 3 degrees Celsius. By 5am, it had dropped 5 degrees. What was the temperature
sattari [20]

Answer:

-2degrees

Step-by-step explanation:

(3 degrees Celsius - 5 degrees Celsius)= -2 degrees Celsius

4 0
2 years ago
6 of 8
jekas [21]

Answer:

1.7x25=42.5

70-4.5=27.5

her loss will be£27.5

3 0
3 years ago
What are the measures of angles 1 and 2?
Snowcat [4.5K]

Answer:

Step-by-step explanation: <1= 53+47=100/2=50 degrees

<2= 180-50=130 degrees

3 0
2 years ago
What is 30 divided by 75 and show the work plz?
lions [1.4K]

Answer:

75/30= 2 with a remainder of 15

Step-by-step explanation:

Divide 75 by 30 to get 2

Multiply the quotient digit (2) by the divisor 30

subtract 60 from 75

the solution for long division of 75/ 30 is 2 remainder of 15

convert it to mixed number

2 15/30

4 0
3 years ago
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