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Lelu [443]
2 years ago
7

How to evaluate 3(2x-4)-6x+12

Mathematics
1 answer:
Inessa [10]2 years ago
7 0

Answer:

0

Step-by-step explanation:

6x-12-6x+12=

0x-12+12=0

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Which of the following definitions is the best way to describe popular culture?
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A-cultural patterns that can change quickly and are accepted by the majority of people.

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Use estimation to determine which of the following expressions is greater. Explain how you got your answer. 5 × (1.9 + 3.15) and
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The first one is greater. Adding 3.2 and 0.2 is easy! It's 3.4! Make that 3. Make 6.9, 7. 7×3=21. For the first one, make 1.9, 2. Then Make 3.15, 3. 5×5=25. That is why the first one is greater.
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Step-by-step explanation:

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The proportion of households in a region that do some or all of their banking on the Internet is 0.31. In a random sample of 100
Alenkasestr [34]

Answer:

Approximate probability that the number of households that use the Internet for banking in a sample of 1000 is less than or equal to 130 is less than 0.0005% .

Step-by-step explanation:

We are given that let X be the number that do some or all of their banking on the Internet.

Also; Mean, \mu = 310/1000 or 0.31   and  Standard deviation, \sigma = 14.63/1000 = 0.01463 .

We know that Z = \frac{X-\mu}{\sigma} ~ N(0,1)

Probability that the number of households that use the Internet for banking in a sample of 1000 is less than or equal to 130 is given by P(X <= 130/1000);

 P(X <=0.13) = P( \frac{X-\mu}{\sigma}  <= \frac{0.13-0.31}{0.01463} ) = P(Z <= -12.303) = P(Z > 12.303)

Since this value is not represented in the z table as the value is very high and z table is limited to x = 4.4172.

So, after seeing the table we can say that this probability is approximately less than 0.0005% .

4 0
3 years ago
Diego has $500 in his savings account. Each month, he takes out $20 to pay for karate class.
Firlakuza [10]

Answer:

500- (m*20)=?

Step-by-step explanation:

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2 years ago
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