Worldwide, the proportion of babies who are boys is about 0.51 . Let the random variable X represent the number of boys in five children. Find the mean and standard deviation of this random variable.

Answer:

3

Step-by-step explanation:

When n= -4 we replace in the given formula and evaluate the answer as shown below:

(-4)^2 + 5 (-4) + 7 = 16 - 20 + 7 = 3

Using Venn probabilities, there is a 0.525 = 52.5% probability that your cookie has chocolate chips or pecans.

In a Venn probability, two non-independent events are related with each other, as are their probabilities.

The "or probability" is given by:

[tex]P(A \cup B) = P(A) + P(B) - P(A \cap B)[/tex]

For this problem, the events are given as follows:

From the text, the probabilities are given as follows:

Hence the "or probability" is given by:

[tex]P(A \cup B) = \frac{10}{40} + \frac{15}{40} - \frac{4}{40} = \frac{21}{40} = 0.525[/tex]

0.525 = 52.5% probability that your cookie has chocolate chips or pecans.

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The percent of the total calories in each brownie that comes from fat is 26.9%

We know that the total amount of calories in each brownie is 420 calories, so that number represents our 100%, then we can write the relation:

420 cal = 100%

Now, the fat has 113 calories, this is a percentage X that we want to find, so we can write:

113 cal = X

We have the two relations:

113 cal = X

420 cal = 100%

If we take the quotient we get:

(113 cal/420 cal) = X/100%

Solving for X.

(113 cal/420 cal)*100% = X = 26.9%

So, the percent of the total calories in each brownie that comes from fat is 26.9%.

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The scores in order from the greatest to the least is 4, 3, 1, 0, -1, -2, -3.

The inequality that shows the relationship between the greatest and least number is 4 > -3.

On the number line, four is greater than -3.

Integers are whole numbers. It is a number without a fraction or decimal component. Integers can either be positive, negative or zero. Examples from integers are 0, -1 and 1.

The farther a positive number is from zero on the number line, the greater the positive number. The closer a negative number is to zero on the number line, the greater the negative number.

For example, 10 is greater than 4 because 4 is closer to 0 when compared to 10. -4 is greater than -10 because -4 is closer to 0 than -10 on the number line.

Here are inequality signs and what they mean:

> means greater than

< means less than

≥ means greater than or equal to

≤ less than or equal to

The sign that would be used to show the relationship between the greatest and the least number is the greater than sign (>)

4 > -3

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Remember the formula for calculating volume is: Volume = Area by height. V = A X h.

For a triangle the area is calculated using the formula: Area = half of base by altitude. A = 0.5 X b X a.

So to calculate the volume of a triangular prism, the formula is: V = 0.5 X b X a X h. i hoped this helped sorry if it didnt

Answer:

Reggie travels a speed of 55 miles an hour

Step-by-step explanation:

Answer(1.833,3.167)

Step-by-step explanation:

Answer:

y=-3x+4

Step-by-step explanation:

Answer:

x=m2-67

Step-by-step explanation:

Answer:

x=m2-67

is the actual answer I

Answer:

Step-by-step explanation:

in simple language h(x) = f(x)+ g(x)

=f(x) +g(x)

h(x)=(3x-7)+(-10x+1)

h(x)= 3x-10x-7+1

h(x)=-7x-6 is yournew derived function

Answer:

432

Step-by-step explanation:

1 yard=3 feet

6 x 3=18

450 - 18=432

Please:

Please give me brainliest.

Answer:

It moves the line up 3 units

Step-by-step explanation:

Question 1

[tex]\left(\frac{-5+2}{2}, \frac{5-5}{2} \right)=\boxed{\left(-\frac{3}{2}, 0 \right)}[/tex]

Question 2

Let the coordinates of the other endpoint be (x,y).

[tex]\left(\frac{x + 4}{2}, \frac{y+8}{2} \right)=( - 6,4) \\ \\ \implies \frac{x + 4}{2}=6 \implies x= - 16\\ \\ \frac{y+8}{2}=4 \implies y=0[/tex]

So, the coordinates of the other endpoint are (-16,0).

Answer:

2. A

3. H

4. D

5. C

6. G

7. E

8. F

Answer:

Han's mixture, Claire's mixture

Step-by-step explanation:

I figured out the percentage of orange juice for each person's mixture:

For Claire:

2 1/2 + 1/3 = 2 5/6

2 5/6 as a decimal: about 2.8

Now find what percent of Claire's total mixture was orange juice:

100 * 1/3 / 2.8 = about 11.9%

For Han:

1 2/3 + 1/4 = 1 11/12

1 11/12 as a decimal: about 1.9

Now find what percent of Han's total mixture was orange juice:

100 * 1/4 / 1.9 = 13.2%

So, Han's mixture is stronger, since his has the higher percentage of orange juice concentrate

Answer:

i think N=32

Step-by-step explanation:

Answer:

  (xy+5)/(xy+3)

Step-by-step explanation:

Given a ratio of rational expressions, you want the simplified version.

The colon separating the two expressions is one of the ways a ratio is written. In this context, it can be replaced by "divided by" (÷). Of course, the division is carried out in the usual way: multiplying by the inverse of the denominator.

The product is simplified by cancelling common factors. This requires each of the polynomials be factored.

  [tex]\dfrac{x^2y^2-4}{x^2y^2+xy-2}\div\dfrac{x^2y^2+xy-6}{x^2y^2+4xy-5}=\dfrac{x^2y^2-4}{x^2y^2+xy-2}\times\dfrac{x^2y^2+4xy-5}{x^2y^2+xy-6}\\\\=\dfrac{(x^2y^2-4)(x^2y^2+4xy-5)}{(x^2y^2+xy-2)(x^2y^2+xy-6)}=\dfrac{(xy-2)(xy+2)(xy-1)(xy+5)}{(xy-1)(xy+2)(xy-2)(xy+3)}\\\\=\boxed{\dfrac{xy+5}{xy+3}}[/tex]

Answer:

x = 4 or D

Step-by-step explanation:

3x - 6 = 6

Solve for x

3x = 12

x = 4

The two rates that can be used to represent this relationship are:

A ratio is a comparison between two numbers that can be separated with (:) sign or can be represented as a fraction. This comparison deals with the same units.

However,

From the parameters given:

For every 2 cups of barbecue sauce, 4 pounds of pulled pork is used.

Therefore, we can conclude that the two rates that can be used to represent this relationship are:

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Answer:

Izi. (1,2)

Step-by-step explanation:

Just look at the graph and see where the x and y meets together when the line is being crossed

Answer:

$4,750.

Step-by-step explanation:

To determine the rental value of the apartment in the tenth year, knowing that it is worth 1,600 during the first year but that it will be adjusted annually to 11.5%, the following calculation must be made:

X = 1,600 x (1 + 0.115) ^ 10

X = 4,751.91

Thus, at ten years, rounded to the nearest tenth, the rental value will be $ 4,750.

The rent of the apartment during the 10th year of living in the apartment is 4,751.9.

Let x represent the rent  of the apartment

Hence:

x= 1,600(1 + 0.115)^10

x=1,600(1.115)^10

x=4,751.9

Inconclusion the rent of the apartment during the 10th year of living in the apartment is 4,751.9.

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Answer:

the answer is 32

Step-by-step explanation:

ywwwww

Answer:

the answer is 32..... 32

Answer:

The sample size will be "[tex]102.5494 \sim 102[/tex]". A further explanation is given below.

Step-by-step explanation:

Let the sample size will be:

= n

The given values are:

Standard deviation,

= 1.4

ME,

= 0.3

As we know,

⇒ [tex]n=(Z \frac{a}{2}\times \frac{SD}{E})^2[/tex]

On putting the estimated values, we get

⇒    [tex]=(2.17\times \frac{1.4}{0 .3})^2[/tex]

⇒    [tex]=(\frac{3.038}{0.3})^2[/tex]

⇒    [tex]=102.5494 \sim 102[/tex]

Answer:

B. -14

Step-by-step explanation:

sana maka tulong ako sayo

at ano ba ang grade nyo

Answer:

0.51

Step-by-step explanation:

Considering the residents aged 50 or over, there are:

This means that there are a total of 3350 people out of the 6509 that meet the required conditions, and thus the answer is 3350/6509, which is about 0.51.

Answer:

For two rectangles to be similar, their sides have to be proportional (form equal ratios). The ratio of the two longer sides should equal the ratio of the two shorter sides.

Step-by-step explanation:

Answer: 3) two angles are opposite angles

Step-by-step explanation:

Answer:

Angles opposite to congruent sides are congruent.

Step-by-step explanation:

According to a particular theorem:

1) Sides opposite to equal angles are congruent.

2) Angles opposite to equal sides are congruent.

Here, We have been given that LO ≅ PO

So, The angles opposite to these sides will also be equal.

Such that:

∠MOL ≅ ∠NOP

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

The other 3 vertices would be (10,5) , (5,0) , and (0,5)

Step-by-step explanation: