how do I solve −2(n− 9) + 4 using distributive property or combining like terms?

Asking subject matter experts to rate each item in a test would be most helpful in strengthening the content validity of a test

Asking subject matter experts to rate each item in a test would be most helpful in strengthening the content validity of a test. Content validity refers to the extent to which a test accurately measures the specific content or domain it is intended to assess. By involving subject matter experts, who are knowledgeable and experienced in the domain being tested, in the evaluation of each test item, we can gather expert opinions on the relevance, representativeness, and alignment of the items with the intended content. Their input can help ensure that the items are appropriate and adequately cover the content area being assessed, thus enhancing the content validity of the test.

Know more about subject matter experts here:

https://brainly.com/question/31154372

#SPJ11

The equation of the exponential model is f(x) = 3 * 0.2^x

The table of data is given as:

x(-2,-1,0,1,2)

f(x)(71,13,3,0.6,0.1)

An exponential model is represented as:

f(x) = ab^x

When x= 0 and f(x) = 3;

We have:

ab^0 = 3

This gives

a = 3

When x= 1 and f(x) = 0.6

We have:

ab^1 = 0.6

This gives

ab = 0.6

Substitute 3 for a

3b = 0.6

Divide both sides by 3

b = 0.2

Substitute b = 0.2 and a =3 in f(x) = ab^x

f(x) = 3 * 0.2^x

Hence, the equation of the exponential model is f(x) = 3 * 0.2^x

Read more about exponential model at:

https://brainly.com/question/2441623

#SPJ4

The sample means a distribution from this population will be right-skewed for all conceivable random samples of size 10.

So, in the situation where, home prices in the US are heavily skewed to the right, with a mean price of $383,500 and a standard deviation of $289,321.

For all conceivable random samples of size 10 from this population, the sample means distribution will have a right-skewed form.

Therefore, the sample means a distribution from this population will be right-skewed for all conceivable random samples of size 10.

Know more about the sample mean here:

https://brainly.com/question/12892403

#SPJ4

Step-by-step explanation:

z-score is the number of standard deviations away from the mean

 45  is  -2  away from the mean of 47

    -2 / 3.5  = - . 571  

The scale factor of triangle PQR to triangle STU is 3/2

Scale factors are used to increase or decrease image. The situation of increment is usually called magnifying.

Taking a point of reference say PR and SU

PR = 8

SU = 12

let the scale factor be r such that

8 * r = 12

r = 12 / 8

r  = 3/2

checking with other sides

PR to UT

6 * 2/3 = 9 correct

QP to TS

10 * 3/2 = 15 correct

Read more on scale factor here:

brainly.com/question/8159270

#SPJ1

The main function of the female reproductive system is to allowing a person to have sexual intercourse, it also helps a person reproduce.

Both internal and exterior organs make up the female reproductive system. It is in charge of hormone production, menstruation, and sexual activity.

The physical parts that assist women or those who were assigned female at birth (AFAB) are the female reproductive system:

Have a sexual encounter.

Reproduce.

Menstruate.

The female reproductive system serves a number of purposes. It aids in sexual reproduction in addition to enabling sexual activity.

You make eggs using your ovaries. During ovulation, these eggs are subsequently moved to your fallopian tube where sperm fertilisation may take place. The fertilised egg is then transferred to your uterus, where the lining has expanded due to the regular hormones produced during your menstrual cycle (also called your reproductive cycle).

To learn more about female reproductive system visit:

brainly.com/question/1021794

#SPJ4

The reproductive system of a woman performs three primary tasks: releasing eggs that may be fertilized by sperm; (ii) producing female sex hormones including progesterone and oestrogen; and (iii) creating a favorable environment for the development of a fertilized egg during pregnancy.

The female reproductive system is made up of both internal and external organs. Menstruation, sexual activity, and hormone production are all under its control.

The female reproductive system is one of the physical components that helps women or people who were given that gender at birth (AFAB):

Engage in sexual activity.

Reproduce.

Menstruate.

There are many uses for the female reproductive system. Along with permitting sexual activity, it also promotes sexual reproduction.

A woman's reproductive system primarily serves to: I release eggs that may be fertilized by sperm; (ii) produce female sex hormones like progesterone and oestrogen; (iii) create an environment for a fertilized egg to develop throughout pregnancy; and (iv) facilitate labor and childbirth.

To learn more about woman's reproductive system visit the link:

http://brainly.com/question/10234107

#SPJ4

Ex

Answer:

your answer is |||. hope that helps.

Answer:

a

Step-by-step explanation:

sjejeneissbebdejjesj

Answer:

yes it is a function

Step-by-step explanation:

Trigonometric relations can be used to transform p to q.

To transform x into 1/x, you can press the following sequence of buttons:
1. Press the sin button.
2. Press the cos^-1 button.
3. Press the tan button.

To transform \(\sqrt[2]{x}\) to \(\sqrt[2]{x+1}\), you can press the following sequence of buttons:
1. Press the sin^-1 button.
2. Press the cos button.
3. Press the tan button.

To show that you can get any positive rational number, you can use the fact that any positive rational number can be expressed as a ratio of two positive integers, say p and q. Then, you can press the following sequence of buttons:
1. Press the sin button q times.
2. Press the cos button p times.
3. Press the tan button.

By pressing this sequence of buttons, the calculator will display the desired positive rational number q.

Learn more about trigonometric relations: https://brainly.com/question/24349828

#SPJ11

Box and whisker plot has shown in the picture which shows different measures of the data set.

A box and whisker plot is a method of abstracting a set of data that is approximated using an interval scale. It's also known as a box plot. These are primarily used to interpret data.

We have data:

45, 51, 53, 55, 55, 65, 75, 81, 84, 87, 93, 93, 95, 96, 100

Sample size: 15

A  = (c) The Lowest value (45)

B = (e)Lower quartile Median (55)

C = (b) Median (81)

D = (d) Upper quartile (93)

E = (a) The Highest value (100)

Thus,  box and whisker plot has shown in the picture which shows different measures of the data set.

Learn more about the box and whisker plot here:

brainly.com/question/3209282

#SPJ1

Answer:

c

Step-by-step explanation:

Answer:

the correct answer is

B. 3/5 × d = 345

It will take approximately 58.71 years for the amount in the account to be more than $5000.

We can solve for the number of years it will take for the amount in the account to be more than $5000 by setting the given equation equal to 5000 and solving for t:

5000 = 500 (1.04)^t

Dividing both sides by 500, we get:

10 = (1.04)^t

To solve for t, we can take the logarithm of both sides.

1 = t * log(1.04)

Simplifying, we get:

t = 1/log(1.04)

Evaluate

t ≈ 58.71

Therefore, it will take approximately 58.71 years for the amount in the account to be more than $5000.

Read more about exponential function at

https://brainly.com/question/11464095

#SPJ1

Answer:

\( \frac{3}{4} = \frac{12}{x} \\ 3x = (12 \times 4) \\ x = \frac{(12 \times 4)}{3} \\ x = (4 \times 4) \\ x = 16\)

Answer:

x = 16

Step-by-step explanation:

so 3/4 = 12/x

you Can multiply 3/4 by 4 to get

12/16 = 12 / x

you can assume x = 16 since the numerators are the same

Answer:

that looks hard! gl :)

Step-by-step explanation:

The mean weight of all women is between 135.01 lb and 157.43 lb, with 95% confidence. This subject is about statistical inference, especially confidence intervals.

We may use the following formula to calculate the 95% confidence interval estimate of the mean weight of all women:

The confidence interval (CI) for the population mean is calculated by adding and subtracting a margin of error from the sample mean (x), where the margin of error is equal to the critical value (z) from the standard normal distribution multiplied by the standard error.

CI represents the confidence interval, x is the sample mean, the population standard deviation, n represents the sample size, and z represents the z-score corresponding to the chosen confidence level.

Given the data in the problem:

The average weight of the 40 women in the sample is x = 146.22 lb.

Women's weight has a population standard deviation of = 30.86 lb.

The sample size is 40 people.

The intended degree of confidence is 95%, corresponding to a z-score of 1.96.

When we plug in the values, we get:

\(CI = 146.22 ± 1.96*(30.86/√40)\\= 146.22 ± 10.21\)

= [135.01, 157.43]

As a result, we can state with 95% certainty that the average weight of all women falls between 135.01 lb and 157.43 lb.

Learn more about confidence intervals at

brainly.com/question/24131141

#SPJ4

Answer:

1. 5/12 in exact form and 0.416 in decimal form

2. 26/3 in exact form and 8.6 in decimal form and 8 2/3 in mixed number form.

On each "6" there's a - on top!

For the data set 3, 6, 4, 13, 3, 7, 5, 13, 3, 7, 5, 15, 3, 8, 5, 27, 4, 8, 6, 6, 4, 11, the outliers are 3, 3, 3, 3, 15, and 27.

In statistics, outlier refers to the data point from a given data set that differs significantly from the other data points.

One way to determine the outlier in a given data set is to calculate the interquartile range.

1. Arrange the data set in ascending or descending order.

3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8, 11, 13, 13, 15, 27

2. Divide the data set into two sets and find the median.

{3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6} , {6, 6, 7, 7, 8, 8, 11, 13, 13, 15, 27}

Q1 median = 4

Q3 median = 8

3. Solve for the IQR.

IQR = Q3 - Q1

IQR = 8 - 4

IQR = 4

4. Determine the outlier if

high outlier ≥ Q3 + (1.5 x IQR) = 8 + (1.5 x 4) = 14

high outlier ≥ 14

low outlier ≤ Q1 − (1.5 x IQR) = 4 - (1.5 x 4) = 3

Learn more about outliers here: https://brainly.com/question/24195133

#SPJ4

Dodie's triangular plot with 160 rose plants will have 12 rows.

To solve it,

Assigning a variable to the number of rows we want to find. Assume that this variable is "n".

Since there are 5 more plants in each row than in the previous row,

We can use an arithmetic sequence to represent the number of plants in each row.

Specifically, the first row will have 1 plant, and the second row will have

1 + 5 = 6 plants, the third row will have 1 + 5 + 5 = 11 plants, and so on.

The formula for an arithmetic sequence is,

an = a1 + (n-1)d

Where an is the nth term of the sequence,

a1 is the first term,

And d is a common difference.

Using this formula, we can write an expression for the total number of plants in all n rows,

160 = n/2 (2 + (n-1)5)

Simplifying this equation, we get,

160 = 2.5n² + 2.5n - 5

Now we can solve for n using the quadratic formula,

n = (-2.5 ± √(2.5²+ 4(2.5)(165)))/(2(2.5))

After simplifying this equation, we get two solutions,

n = -13.2 and n = 12.2.

Since we can't have a negative number of rows, we'll take the positive solution, n = 12.2.

Now, since we can't have a fraction of a row, we'll round down to the nearest integer.

Therefore, Dodie's plot will have 12 rows.

To learn more about quadratic equations visit:

https://brainly.com/question/30098550

#SPJ12

Answer:

18,223 feet

Step-by-step explanation:

y= -16t^2 + 608t + 12,447.

y = -16(t² - 38t) + 12447

y = -16[t² - 2(t)(19) + 19² - 19²] + 12447

y = -16(t - 19)² - 16(-19²) + 12447

y = -16(t - 19)² + 18223

Vertex: (19, 18223)

Max height is 18,223 at t = 19

The parabolas are:

a = -16

b = 608

c = 12,447

x_v = -b/2a

t_v = -608/2(-16)

t_v = -608/-32

t_v = 19

Plug in t_v = 19 to find y_v

y = -16(19)^2 + 608(19) + 12,447

y = -16(361) + 11,552 + 12,477

y = -5,776 + 11,552 + 12,477

y = 18,253

We have the point (19, 18,253)

The max height is at 18,253 when t = 19

Best of Luck!

If d is the common difference between consecutive terms, then

\(a_4 = a_3 + d = a_2 + 2d\)

We have \(a_2 = 64\) and \(a_4 = 100\), so

\(a_4 - a_2 = 100 - 64 = 36 = 2d \implies d = 18\)

Then the 1st term in the sequence is

\(a_2 = a_1 + d \implies 64 = a_1 + 18 \implies a_1 = 46\)

and the n-th term would be

\(a_n = a_1 + (n-1) d \implies a_n = 46 + 18 (n-1) \implies \boxed{a_n = 18n + 28}\)

When an arch is extended overhead into a half cylinder, it is known as a barrel vault.

A barrel vault is a curved architectural structure that resembles the shape of a half-cylinder. It is created by placing a series of arches side by side, forming a continuous and uninterrupted vaulted ceiling. The term "barrel" refers to the resemblance of the vault to the shape of a barrel or a tunnel.

Barrel vaults have been used in architecture for centuries and are often found in historical buildings and structures. They provide a sturdy and durable construction method, distributing the weight of the ceiling evenly along the arches. This allows for the creation of large and open interior spaces without the need for additional support columns.

Barrel vaults are commonly used in churches, cathedrals, and other monumental structures, where they serve both functional and aesthetic purposes. The sweeping and graceful curves of the barrel vaults add a sense of grandeur and elegance to architectural designs, making them a popular choice in various architectural styles throughout history.

Learn more about cylinder here: https://brainly.com/question/10048360

#SPJ11

By finding 59% of 50.7 million we know that approximately 29.9 million travelers are originating from the Southeast.

To find the number of travelers originating from the southeast, we need to calculate 59% of the total number of travelers.
The total number of travelers estimated is 50.7 million.
To find 59% of 50.7 million, we can multiply 50.7 million by 0.59:
\(50.7 million * 0.59 = 29.913 million\)

Therefore, approximately 29.9 million travelers are originating from the Southeast.

Know more about multiplication here:

https://brainly.com/question/1135170

#SPJ11

To the nearest tenth of a million, approximately 20.3 million travelers are originating from the southeast region.

The ratio of the numbers of travelers from the southeast, midwest, and northeast regions is given as 6:5:4, respectively. To find the number of travelers originating from the southeast region, we need to determine the value of one part of the ratio.

Let's assume the common ratio value is "x". According to the given ratio, the number of travelers from the southeast region can be represented as 6x.

We know that the total number of travelers is estimated to be 50.7 million. Therefore, we can set up the following equation:

6x + 5x + 4x = 50.7

Combining like terms, we get:

15x = 50.7

To solve for x, we divide both sides of the equation by 15:

x = 50.7 / 15

Evaluating this expression, we find:

x ≈ 3.38

Now, to find the number of travelers originating from the southeast region, we multiply the value of x by the corresponding ratio:

6x ≈ 6 * 3.38 ≈ 20.28 million

Learn more about southeast region:

https://brainly.com/question/14372942

#SPJ11

Answer:

16 = n/12

Step-by-step explanation:

16 = n/12

The slope-intercept form of this line is y = –4x

From the question, we have the following parameters that can be used in our computation:

y = -4x

The above equation is a linear equation

A linear equation in slope intercept can be represented as

y = mx + c

When the equations are compared, we have

m = -4 and c = 0

This implies that the equation is in the required form

Read more about linear function at

https://brainly.com/question/15602982

#SPJ1

The multiple regression technique considers the effects of wide range of factors, including site characteristics, such as visibility and access, and characteristics of the trade area, such as demographics and lifestyle segments represented to estimate a statistical model.

It is a powerful tool for analyzing the relationships between a dependent variable and several independent variables simultaneously. The multiple regression technique is used in market research to determine which factors have the most significant impact on sales, market share, or other measures of performance. Multiple regression analysis is useful for determining the factors that have a significant impact on the outcome of a study. It is also useful for identifying trends and relationships between variables.

The process of multiple regression is complex and requires a thorough understanding of the underlying principles. However, once mastered, it can be an invaluable tool for analyzing and interpreting data in a wide range of fields. So therefore the multiple regression technique is used to estimate a statistical model by considering the effects of a wide range of factors, including site characteristics such as visibility and access, as well as characteristics of the trade area, such as demographics and lifestyle segments represented.

Learn more about dependent variable at

https://brainly.com/question/30094324

#SPJ11

Answer:

its best no to

Step-by-step explanation:

The only thing you can really change is switching subtraction and addiction, or division and multiplication. In the long run though its best just to say with the regural order and its earier later on.

please, (parentheses)

excuse (exponents)

my (multipliction)

dear (division)

aunt (addiction)

sally (subtraction)

Answer:

m=21

Step-by-step explanation:

Each side has the same length.

63/3=21

The missing angle m∠U of the quadrilateral is calculated as:  117°

From the given quadrilateral, we see that the angle m∠R is given as 117°.

We also see that the sides TU and RS are congruent to each other. No, we know that the sum of angles of a quadrilateral is 360 degrees.

However, we see that since TU and RS are congruent, this can be likened to an isosceles trapezium and as such the angle m∠U must be equal to the angle m∠R.

Thus:

m∠R = m∠U  = 117°

Read more about Angles of a quadrilateral at: https://brainly.com/question/21504609

#SPJ1