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4 years ago

One side of a square has a value of 3x+2, find the perimeter of the square

Mathematics

2 answers:

ELEN [110]4 years ago

7 0

Answer:

$12x+8$

Step-by-step explanation:

$3x+2$ for one side of a square, for a perimeter for the square we need 4 times the side length, so we need:

$4(3x+2)=12x+8$

alexira [117]4 years ago

6 0

Answer:

P = 12x +8

Step-by-step explanation:

The perimeter of a square is given by

P = 4s where s is the side length

P = 4(3x+2)

Distribute

P = 12x +8

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A courier service company wishes to estimate the proportion of people in various states that will use its services. Suppose the

Rasek [7]

Answer:

$\mu_{p} = p = 0.06$

And the standard error is given by:

$SE_{p} = \sqrt{\frac{\hat p(1-\hat p)}{n}}$

And replacing we got:

$SE_[p]= \sqrt{\frac{0.06*(1-0.06)}{373}}= 0.0123$

And we want to find this probability:

$P(\hat p < 0.03)$

We can calculate the z score for this case and we got:

$z = \frac{\hat p -\mu_p}{\Se_p} = \frac{0.03-0.06}{0.0123}= -2.440$

And using the normal distribution table or excel we got:

$P(\hat p < 0.03)= P(Z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Solution to the problem

For this case we can find the mean and standard error for the sample proportion with these formulas:

$\mu_{p} = p = 0.06$

And the standard error is given by:

$SE_{p} = \sqrt{\frac{\hat p(1-\hat p)}{n}}$

And replacing we got:

$SE_[p]= \sqrt{\frac{0.06*(1-0.06)}{373}}= 0.0123$

And we want to find this probability:

$P(\hat p < 0.03)$

We can calculate the z score for this case and we got:

$z = \frac{\hat p -\mu_p}{\SE_p} = \frac{0.03-0.06}{0.0123}= -2.440$

And using the normal distribution table or excel we got:

$P(\hat p < 0.03)= P(Z$

8 0

4 years ago

A Gatorade cooler has 36 cups of water.if a serving is 3/4 of a cup how many servings are in the cooler?

Kisachek [45]

To find out we must divide total cups' amount by a serving's amount, so :

$\frac { 36 }{ \frac { 3 }{ 4 } } =36\cdot \frac { 4 }{ 3 } =\frac { 144 }{ 3 } =48$

There are 48 servings in the cooler.

4 0

3 years ago

Say something the first answer gets brainlest

VLD [36.1K]

Heyyyy. How r uuu

I’m sooo bored

7 0

3 years ago

Does a regular hexagon have 2 parallel sides

velikii [3]

No because they are all connected making them intersect each other

4 0

3 years ago

Read 2 more answers

What is the discriminant of the quadratic equation 0 = –x2 + 4x – 2?

Ber [7]

When the equation is of the form

... ax² +bx +c = 0

the discriminant is

... d = b² -4ac

Here, your equation is in the appropriate form, so we can identify

... a = -1, b = 4, c = -2

and calculate the discriminant as

... d = 4² - 4(-1)(-2) = 16 - 8 = 8

The discriminant is 8.

6 0

4 years ago