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3 years ago

I have 6 pens. A friend gives me n more pens.How many pens do i have now/

Mathematics

2 answers:

kap26 [50]3 years ago

4 0

Answer: 6 + n = 6n

Step-by-step explanation:

neonofarm [45]3 years ago

4 0

Answer:

You now have 6n pens

Step-by-step explanation:

6 + n = 6n

Hope this helps :D

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Can someone help please

11Alexandr11 [23.1K]

I get it now!!!!
After some reasearch, I believe the answer is ~q --> p
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4 0

3 years ago

28)A regression equation is obtained for a collection of paired data. It is found that the total variation is 24.488, the explai

Doss [256]

Answer: The coefficient of determination = 0.6291

Step-by-step explanation:

Given: Total variation is 24.488, the explained variation is 15.405, and the unexplained variation is 9.083.

The coefficient of determination is computed as:

$\text{ coefficient of determination} =\frac{\text{explained variation }}{\text{total variation}}$

Substituting given values, we get

$\text{coefficient of determination} =\frac{15.405}{24.488}$

$=0.6291$

Therefore, the coefficient of determination = 0.6291

7 0

2 years ago

4. If x=4 and y=10, what is the value of the expression 3x²y + y/2 - 6x?

Vlad1618 [11]

Answer:

Step-by-step explanation:

3*4^2*10+10/2 - 6*4

4*4=16 5 24

3*16*10 + 5 - 24 = 19

480 - 19

4 0

3 years ago

3x+2>5x-8<br><br> Can some one help me with this problem

Andre45 [30]

Answer:

5 > x

Step-by-step explanation:

3x+2>5x-8 rewrite the inequality by exporting like terms to the same side

2+8 > 5x - 3x now add/subtract like terms

10 > 2x divide both sides by 2

5 > x

8 0

2 years ago

For two populations of rabbits, R and S, the proportions of rabbits with white markings on their fur are given as pR and pS, res

BlackZzzverrR [31]

Answer:

The standard deviation is $\hat p_{R} -\hat p_{S} = \sqrt{\frac{\hat p_{R}(1-\hat p_{R})}{50} + \frac{\hat p_{S}(1-\hat p_{S})}{100} }$

Step-by-step explanation:

The standard deviation of a sampling distribution is the standard error or a valuation of the standard deviation. Where statistic parameter is the mean it is referred to as the standard error of the mean.

The formula for standard deviation of a sampling distribution is as follows;

$\hat p_{R} -\hat p_{S} = \sqrt{\frac{\hat p_{R}(1-\hat p_{R})}{n_R} + \frac{\hat p_{S}(1-\hat p_{S})}{n_S} }$

Where;

${\hat p_{R}}$ = Sample proportion of rabbits with white markings from R

${\hat p_{S}}$ = Sample proportion of rabbits with white markings from S

$n_R$ = Number of from R = 50

$n_S$ = Number of from S = 100

Therefore, the standard deviation of the sampling distribution is given as follows;

$\hat p_{R} -\hat p_{S} = \sqrt{\frac{\hat p_{R}(1-\hat p_{R})}{50} + \frac{\hat p_{S}(1-\hat p_{S})}{100} }$ .

3 0

3 years ago