I need help with number nine please

The normal distribution have an importance in statistics of whether or not out appears in nature, because it fits several natural phenomena.

For exa. measurement error, heights, IQ scores, and physical activity measures all follow the normal distribution.

In this question we need to describe why does the normal distribution have an importance in statistics of whether or not out appears in nature.

We know that if we plot the probability distribution and it forms a bell-shaped curve. If the mean, mode, and median of the sample are equal then the variable has normal distribution.

A normal distribution is dependent on two parameters of the data set: mean and the standard deviation of the sample.

This characteristic of the normal distribution makes it extremely simple.

Also, the normal distribution is important because of the Central limit theorem.

It makes math easy - like calculating moments, correlations between variables, and other calculations that are domain specific.

So, the normal distribution have an importance in statistics of whether or not out appears in nature.

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The definition of the domain of the function f: {4, 6, 8} ⇒{2, 3} over  {(4, 2), (6, 2), (8, 2)} is given as {4,6,8}, while the range is given as 2.

A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output. Four main categories can be used to classify different sorts of functions. One to one function, many to one function, onto function, one to one and into function—all based on the element. A relation between a domain and range is called a function when each value in the domain only has one value in the range.

Here,

function f : {4, 6, 8} → {2, 3} is defined as {(4, 2), (6, 2), (8, 2)},

domain={4,6,8}

range={2}

The domain of function f : {4, 6, 8} → {2, 3} is defined as {(4, 2), (6, 2), (8, 2)} will be {4,6,8} and range will be {2}.

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Answer:

65%

Step-by-step explanation:

65% of 2,000 = 1300

........

Answer:

Step-by-step explanation:

Would buy again customers are people satisfied.

Therefore we have

satisfied overall people surveyed

In numbers, this looks like

1300/2000

Simplifying we get

13/20

If you use a calculator then you can input this equation. However, if you want to be big-brained you can use simple math to get the decimal answer fast.

13/20 = (13•5)/(20•5) = 65/100 = 0.65

But if you need a percent value then you are not done!

0.65 is not a percent. To get a percent you multiply your fraction or decimal by 100. Therefore we get 0.65•100 = 65%

65% of people would buy the car again. Therefore 65% of people are satisfied with that car.

La razón que buscamos para los números de estudiantes es:

12:13

Sabemos que si de un numero N podemos separar 2 grupos, de tal forma que hay a elementos del grupo A y b elementos del grupo B, la razon de el grupo A al grupo B es a:b

En este caso sabemos que hay 25 estudiantes y hay 12 varones, entonces hay:

25 - 12 = 13 "hembras"

Entonces la razon que buscamos es:

12:13

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Answer:

4t + 109.99 = 347.95

Step-by-step explanation:

They bought 4 tickets so that is how we got 4t

they spent altogether $109.99 to make the total

347.95

Bonus : 1 ticket is 59.49

Answer:

Step-by-step explanation:

To make F the subject of the formula, you need to solve for F in the equation C = 5(F-32)/9.

You can do this by first multiplying both sides of the equation by 9 to get rid of the fraction:

C * 9 = 5(F-32)

Then, you can distribute the 5 on the right side of the equation:

C * 9 = 5F - 160

Then, you can add 160 to both sides of the equation to isolate the F term:

C * 9 + 160 = 5F

Finally, you can divide both sides of the equation by 5 to solve for F:

F = (C * 9 + 160)/5

This gives you the final form of the equation:

F = (9C + 160)/5

In this form, F is the subject of the formula. a = 9, b = 160, and c = 5 are all positive integers.

Answer:

[tex]F=\dfrac{9C+160}{5}[/tex]

Step-by-step explanation:

Given equation:

[tex]C=\dfrac{5(F-32)}{9}[/tex]

Multiply both sides by 9:

[tex]\implies 9C=5(F-32)[/tex]

Divide both sides by 5:

[tex]\implies \dfrac{9C}{5}=F-32[/tex]

Add 32 to both sides:

[tex]\implies \dfrac{9C}{5}+32=F[/tex]

[tex]\implies F=\dfrac{9C}{5}+32[/tex]

Rewrite 32 as a fraction with denominator 5:

[tex]\implies F=\dfrac{9C}{5}+\dfrac{32 \cdot 5}{5}[/tex]

[tex]\implies F=\dfrac{9C}{5}+\dfrac{160}{5}[/tex]

[tex]\textsf{Apply the fraction rule} \quad \dfrac{a}{c}+\dfrac{b}{c}=\dfrac{a+b}{c}:[/tex]

[tex]\implies F=\dfrac{9C+160}{5}[/tex]

Answer:

1

Step-by-step explanation:

This equation only has 1 solution

The vertices of the dilated triangle are (-2, 2), (3, 4), and (1, 1).

Dilation is the process of increasing the size of an item without affecting its form. Depending on the scale factor, the object's size can be raised or lowered. There is no effect of dilation on the angle.

The coordinates of the triangle are (-4, 4), (6, 8), and (2, 2).

The scale factor of the triangle is 1/2 centered at the origin. Then the coordinate of the triangle will be given as,

⇒ (-4/2, 4/2), (6/2, 8/2), (2/2, 2/2)

⇒ (-2, 2), (3, 4), (1, 1)

The vertices of the dilated triangle are (-2, 2), (3, 4), and (1, 1).

The image of the triangle and dilated triangle is given below.

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Answer: The other answer is incorrect, the graph below shows the correct answer.

Coordinates of each point

A: (3,4)

B: (-2,2)

C: (1,1)

I know this is late, but I wanted to help those in the future who needed help with the question. Good Luck <3

The surface area of the triangular prism is 924 cm².

What is the triangular prism?

When a prism has three rectangular sides and two triangular bases, the prism is said to be triangular. A pentahedron, that is.

Volume is calculated using the formula volume = 0.5 * b * h * length, where b is the triangle's base length, h is its height, and length is the prism length.

                                         Area is defined as length * (a + b + c) + (2 * base area), where a, b, and c are the triangle's sides and base area is the triangle's base area.

The surface area is equal to the area of the two triangles + area of the three rectangles.

Area of two triangles:

12 × (9+5) × 1/2

= 84

84(2) = 168

Area of the three rectangles:

15 × 20 + 13 × 20 + 14 × 20

= 840

840 + 84

The surface area of the triangular prism is 924 cm².

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The answer to this Question based on Compound Interest is 1690.2$

What is Compound Interest?

Compound interest is a type of interest that is calculated not only on the initial principal but also on the accumulated interest of previous periods. It is the result of reinvesting interest, rather than paying it out, so that interest in the next period is then earned on the principal plus previously accumulated interest. It is the concept of earning interest on interest, which causes the total balance to grow at a faster rate than simple interest. Compound interest is often referred to as the eighth wonder of the world, as it is a powerful financial concept that can yield impressive results over a long period.

Initial money deposited = 900$
1$ turns into 1.878$ after 12 years of Compound Interest
hence by basic manipulation we can do like
900$ turns  into 900 multiplied by 1.878 which comes out to b 1690$
Hence after 12 years final amount will be 1690$

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The measures of the angles are v = 80°, y = 100°, w = 45°, and x = 55°.

An inscribed four-sided polygon in a circle is known as a cyclic quadrilateral. With the specified side lengths, it has the largest area feasible.

Given the quadrilateral inside a circle.

The angle v is given by:

45° +v + 55°=180°

v + 100° = 180°

v = 180° - 100°

v = 80°

Since the quadrilateral is cyclic, the sum of its opposite angle is 180°.

Therefore,

y + v = 180°

y + 80° = 180°

y = 100°

Using the property of cyclic quadrilateral, it follows:

w = 45° and x = 55°

Hence, the measures of the angles are v = 80°, y = 100°, w = 45°, and x = 55°.

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Step-by-step explanation:

just a question should I help you with all of them?

Answer:

Step-by-step explanation:

3 1/4

-2/3,  is the slope of the line that passes.

A line's steepness and direction are measured by the line's slope.

Without actually using a compass, determining the slope of lines in a coordinate plane can assist in forecasting whether the lines are parallel, perpendicular, or none at all.

Any two different points on a line can be used to calculate the slope of any line.

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively.

Two locations located on a straight line can be used to determine a line's slope. We can use the slope of line formula if we know the two spots' coordinates. These two points' coordinates should be-

P1 = (x1, y1) and P2 = (x2, y2)

According to our question-

The slope equation is [y2-y1/x2-x1]. For substitution and solution, use the provided points.

12-8/4-10

4/-6

-2/3

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The balance sheet that correctly represents the daycare's income, expenses, and balance is given as follows:

A) Income

Amount

Weekly Income $21,000.00

Total Monthly Income $84,000.00

Expenses

Percent Amount

Employee Wages 42% $35,280.00

Building Rent 10% $8,400.00

Supplies 15% $12,600.00

Equipment 5% $4,200.00

Educational Licensing 2% $1,680.00

Food 10% $8,400.00

Utilities 10% $8,400.00

Maintenance 3% $2,500.00

Emergency/Repair 3% $2,500.00

$84,000.00

Balance

Income $84,000.00

Expenses $84,000.00

Balance $0

A balance sheet is a financial statement that lists the assets and liabilities of a corporation at a certain point in time. It is one of the three primary financial statements—the other two being the income statement and cash flow statement—that are used to assess a company's performance.

The weekly income is of $21,000, while a month is composed by four weeks, hence the monthly income is of:

=4 x $21,000

= $84,000.

Then the percentages of each expenses are applied to find the values, for example, 42% of that is for employee wages, hence:

= 0.42 x 84,000

= $ 35, 280

From the details we get Employee Wages 42% of $35,280.00

Hence, the balance will be of zero and option A is correct.

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Answer: The ratio of red marbles to blue marbles is 3:6. This can be written as a fraction as 3/6, which simplifies to 1/2.

Step-by-step explanation:

To find the ratio of two quantities, you can divide the number of one type of item by the number of another type of item. In this case, the ratio of red marbles to blue marbles is 3 marbles / 6 marbles, which simplifies to 1/2.

It's important to note that a ratio is not the same thing as a percentage or a fraction. A ratio is a comparison of two quantities, while a percentage is a measure of a quantity relative to the total amount and a fraction is a division of one number by another.

Answer:

1. The negative flips the parabola upside down so there is a maximum

2. The 1/2 means there is a vertical shrink

3. -3 means the graph moves to the RIGHT 3 units (X sign always changes)

4. +12 means the graph shifts up 12 units

Step-by-step explanation:

Answer:

Part A: A

Part B: 1 is the y-intercept and is 0 the horizontal asymptote

Step-by-step explanation:

Answer:

4:1

Step-by-step explanation:

find the gcf: 4

divide by the gcf: 16/4 and 4/4

The first set represents a function but the second case does not represent a function.

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The value of 'y' for each value of 'x' must be distinct. Then the relation is a function. Otherwise, it will not be a function.

A)  {(1, 0), (-2, 0)}

In the above relation, for each value of 'x' the value of 'y' is the same. Then the relation is function.

B)  {(-2, 3), (1, 4), (3, 5), (-2, 6), (5, 7)}

In the above relation, at x = -2, the number of values of 'y' is 2. then the relation is not a function

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The statement describes values of x and y such that x/y could be an irrational number is B. The value of x is the square root of an integer, and the value of y is an integer greater than zero.

The square root of an integer for x and a positive integer greater than zero for y are described in the statement as values of x and y that could be irrational numbers.

We have provided x and y values that could be irrational numbers. Any real number that cannot be expressed as the quotient of two integers is considered an irrational number. Positive whole numbers are not considered negative integers, nor are negative integers, or numbers below zero.

Consequently, we can say that A, C, or D do not demonstrate the irrational numbers since they are all expressed as integers.

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Answer: 35

Step-by-step explanation:

Using the trapezoid midsegment theorem,

[tex]\frac{13+q}{2}=24\\\\13+q=48\\\\q=35[/tex]

Using the formula of the combination and for the values of 'p' and 'q'. The statement is false.

Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant. You can choose the components of combos in any order.

The formula is:

[tex]C(p,q) = \frac{p!}{q!(p-q)!}[/tex]

p=4 and put q=0 to 4

C(4,2) > C(4,0),C(4,1),C(4,3),C(4,4)

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The evaluation of the given expression 9/g + 2h + 5 when g = 3 and h = 6 gives the result 20

9/g + 2h + 5

When,

g = 3

h = 6

Substitute the value of g and h into the expression

9/g + 2h + 5

= 9/3 + 2(6) + 5

= 3 + 12 + 5

= 20

Therefore, the expression 9/g + 2h + 5 when evaluated gives the result 20

Complete question:

Evaluate 9/g + 2h + 5 when g = 3 and h = 6

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B) 3 is the ratio of his speed and his car's fuel economy.

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is traveling along a path. In other words, velocity is a vector, whereas speed is a scalar value.

[tex]\frac{speed}{fuel economy} =\frac{\frac{60 miles}{hour} }{\frac{20 miles}{gallon} } \\\frac{speed}{fuel economy}={\frac{60 miles}{hour} .{\frac{gallon}{20 miles} }\\[/tex]

[tex]\frac{speed}{fuel economy}=\frac{3 gallons}{hour}[/tex]

Inserting this 3 in the given equation 15 = 3t and including each term, we see the units cancel out:

[tex]15 gallons = \frac{3 gallons}{hour}.t(hours)[/tex]

3 is the ratio of his speed and his car's fuel economy.

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Answer:

z = 56

Step-by-step explanation:

I'll assume 1.25/0.06 = z−6 /2.4 is actuallY:  1.25/0.06 = (z−6)/2.4  (and not 1.25/0.06 = z−(6 /2.4)).

1.25/0.06 = (z−6)/2.4

1.25*(2.4) = (z−6)*(0.06)  [Multiply both sides by 0.06 and then 2.4]

  3 =  0.06z - 0.36

3.36 =  0.06z

z = (3.36/0.06)

z = 56

The journal entry for the July 31 sales and November 11 cash payment is shown below .

In the question ,

it is given that ,

the amount for which Qantas Industries sold electronics during July under a nine-month warranty is = $325000  ,

cost to repair defects is = 4.5 percent of sales price .

So , the cost to repair is = 4.5% × 325000 = $14625 .

So , the journal entry for July 31 is

Warranty expense    Debit   14625

Estimated warranty liability/warranty payable    Credit   14625

and the journal entry for November 11 is :

Estimated warranty liability /warranty payable    Debit    220 ,

                                                                Cash       Credit   220  .

Therefore , the Journal entry is shown above .

The given question is incomplete , the complete question is

Qantas Industries sold $325,000 of consumer electronics during July under a nine-month warranty. The cost to repair defects under the warranty is estimated at 4.5% of the sales price. On November 11, a customer was given $220 cash under terms of the warranty. Provide the journal entry for the estimated warranty expense on July 31 for July sales. Provide the journal entry for the November 11 cash payment .

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Answer: 196

Step-by-step explanation:

[tex]f(7)=(-7-7)^2 =196[/tex]