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pickupchik [31]
3 years ago
13

Simplify: 3(x+4) -6x​

Mathematics
2 answers:
Stella [2.4K]3 years ago
6 0

Answer:

-3x + 12

Step-by-step explanation:

Distribute the 3 to the numbers in the parenthesis.

3x + 12 -6x

-3x + 12

otez555 [7]3 years ago
6 0
So to simplify it you would have to do first distribute the 3

3x + 12 -6x

then combine like terms

the answer is -3x + 12
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ch4aika [34]

Answer:

I hope this helps:)

Step-by-step explanation:

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2 years ago
Can someone help me with this it's making no sense to me
Dafna11 [192]

Answer:

The most reasonable is 2 h

Step-by-step explanation:

If you see the graph is decreasing in hours while is increasing in years. When a person is 45 years the amount of daily physical activity is 3 hours, so a person that is 50 years needs to do less than 3 hours a day and the only option less than 3 hours is 2 hours.

7 0
3 years ago
4.<br> Which point on the number line<br> represents 0.3?
Dafna11 [192]

Answer:

Point C

Step-by-step explanation:

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5 0
2 years ago
Read 2 more answers
Express 240 as a product of prime factors.
Sholpan [36]

Answer:

240 = 2 x 2 x 2 x 2 x 3 x 5 or 2^4x3x5

Step-by-step explanation:

               240

              /      \

            2      120                     (240 = 2 x 120)

                   /      \

                 2       60                 (120 = 2 x 60)

                        /      \

                      2       30            (60 = 30 x 2)

                             /      \

                           2       15       (30 = 2 x 15)

                                  /      \

                                3        5

6 0
3 years ago
Read 2 more answers
You want to create a 99% confidence interval with a margin of error of .5. Assuming the population standard deviation is equal t
miss Akunina [59]

Answer:

Sample size minimum is 60

Step-by-step explanation:

given that you want to create a 99% confidence interval with a margin of error of .5.

The population  standard deviation is equal to 1.5

i.e. \sigma = 0.5

Confidence level = 99%

Since population std deviation is known, we can use Z critical value for finding margin of error

Z critical value for 99% = 2.58

Margin of error = 2.58*\frac{1.5}{\sqrt{n} }

Equate this to 0.5 and solve for n

2.58*\frac{1.5}{\sqrt{n} }=0.5\\\sqrt{n} =7.74\\n =59.90\\n=60

8 0
2 years ago
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