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3 years ago

Evaluating expressions k3+j

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

3 0

The answer is 3k+j since 3 cannot be multiplied after k.

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X+12=31 solve for x i’m in a breakout room i have limited time to finish this

Nitella [24]

Answer: x=19

Step-by-step explanation:

x=31-12

x=19

4 0

2 years ago

Find the Highest Common Factor (HCF) of 196 and 12

Norma-Jean [14]

Answer:

The greatest common factor is 4

Step-by-step explanation:

1.Find the prime factorization of 12

a) 12 = 2 × 2 × 3

2.Find the prime factorization of 196

a) 196 = 2 × 2 × 7 × 7

To find the GCF, multiply all the prime factors common to both numbers:

a)GCF=2x2

Therefore, GCF = 2 × 2

GCF = 4

7 0

3 years ago

Read 2 more answers

What is the exact distance from (−4, −2) to (4, 6)?

PIT_PIT [208]

Hopefully this is right :)

8 0

3 years ago

The mean number of hours per day spent on the phone, according to a national survey, is four hours, with a standard deviation of

Reika [66]

Answer:

The new mean is 5.

The new standard deviation is also 2.

Step-by-step explanation:

Let the sample space of hours be as follows, S = {x₁, x₂, x₃...xₙ}

The mean of this sample is 4. That is, $\bar x=\frac{x_{1}+x_{2}+x_{3}+...+x_{n}}{n}=4$

The standard deviation of this sample is 2. That is, $s=\frac{1}{n-1}\sum (x_{i}-\bar x)^{2}=2$ .

Now it is stated that each of the sample values was increased by 1 hour.

The new sample is: S = {x₁ + 1, x₂ + 1, x₃ + 1...xₙ + 1}

Compute the mean of this sample as follows:

$\bar x_{N}=\frac{x_{1}+1+x_{2}+1+x_{3}+1+...+x_{n}+1}{n}\\=\frac{(x_{1}+x_{2}+x_{3}+...+x_{n})}{n}+\frac{(1+1+1+...n\ times)}{n}\\=\bar x+1\\=4+1\\=5$

The new mean is 5.

Compute the standard deviation of this sample as follows:

$s_{N}=\frac{1}{n-1}\sum (x_{i}-\bar x)^{2}\\=\frac{1}{n-1}\sum ((x_{i}+1)-(\bar x+1))^{2}\\=\frac{1}{n-1}\sum (x_{i}+1-\bar x-1)^{2}\\=\frac{1}{n-1}\sum (x_{i}-\bar x)^{2}\\=s$

The new standard deviation is also 2.

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3 years ago

The flow of financial data through the accounting information system does NOT include a. receiving payment for all accounts rece

Leokris [45]

Answer:

a. receiving payment for all accounts receivable.

Step-by-step explanation:

The flow of financial data through the accounting information system does NOT include - receiving payment for all accounts receivable.

The flow of data through the accounting information system includes analyzing transactions, journalizing and posting transactions and preparing a trial balance.

7 0

3 years ago