can anyone answer -9(x-8) and show work ?

The correct option is 20.

The score found for the sample is 20.

A standard error is a statistic that is applied to test the distribution of data. This metric is comparable to standard deviation. We can calculate the standard error if we know the sample size & standard deviation. It assesses the mean's precision.

Now, according to the question;

Sample mean; \(\bar{x}=40\)

Sample variance; \(s^{2}=20\)

Thus, \(s=\sqrt{20}=4.47\)

Standard error SE = 1

The amount of scores with in sample must be determined here.

The standard error formula is as follows:

\(S E=\frac{s}{\sqrt{n}}\)

We might rearrange the formula as follows:

\(\begin{aligned}\sqrt{n} &=\frac{s}{S E} \\n &=\left(\frac{s}{S E}\right)^{2}\end{aligned}\)

Substituting the values;

\(\begin{aligned}&n=\left(\frac{4.47}{1}\right)^{2} \\&n=19.98\end{aligned}\)

The sample's number of scores n = 19.98 = 20 (round up)

Therefore, the scores are in the sample is 20.

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Answer = 3/4

First, change them all into like fractions.

-2, -11/4, -7/2 = -8/4, -11/4, -14/4

Therefore the common difference of their arithmetic sequence is 3/4

Hope it helps u.

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Answer:

Step-by-step explanation:

As KLMN is a parallelogram, its opposite sides are congruent.

Therefore, to find the value of x, equate LM and KN and solve for x.

\(\begin{aligned}LM &= KN\\\implies (5x-8)&=(4x-1)\\5x-8&=4x-1\\5x-8-4x&=4x-1-4x\\x-8&=-1\\x-8+8&=-1+8\\x&=7\end{aligned}\)

Therefore, the value of x is 7.

To find the length of LM and KN, substitute the found value of x into one of the expressions.

\(\begin{aligned}\implies LM=KN&=4(7)-1\\&=28-1\\&=27\;\sf cm\end{aligned}\)

Opposite angles of a parallelogram are congruent.

Therefore, to find the value of a, equate angles K and M and solve for a.

\(\begin{aligned}\angle K&=\angle M\\\implies (7a+4)^{\circ}&=(6a+11)^{\circ}\\7a+4&=6a+11\\7a+4-6a&=6a+11-6a\\a+4&=11\\a+4-4&=11-4\\a&=7\end{aligned}\)

Therefore, the value of a is 7.

To find the measure of angles K and M, substitute the found value of a into one of the expressions.

\(\begin{aligned}\implies m \angle K = m \angle M &= (6(7)+11)^{\circ}\\&= (42+11)^{\circ}\\&= 53^{\circ}\end{aligned}\)

As a result, the value of "a" is 7 as an angle and the value of "x" is 27 centimeters as a parallelogram's side.

A parallelogram is a geometric form with four equal edges that are parallel to one another and have the same length. It is a particular kind of quadrilateral, which is a four-sided shape. The characteristics of a quadrilateral are as follows: The lengths of the opposing edges are parallel and equal. Congruent opposite points (i.e., they have the same measure). Concurrent views are helpful (i.e., they add up to 180 degrees). The diagonals cut each other in half (i.e., they intersect at their midpoint). A = base x height, where the base is any one of the parallel sides and the height is the angle between the parallel sides, gives the area of a trapezoid.

given

KLMN has identical opposites because it is a parallelogram.

As a result, equal LM and KN and then solve for x to determine the value of x.

LM = KN

5x -8 = 4x -1

x - 8 = -1

x = 7

Consequently, x has a value of 7.

In one of the equations, enter the discovered value of x to determine the lengths of LM and KN.

LM = KN = 4(7) -1

= 28 -1

= 27 cm

A parallelogram has opposite edges that are congruent.

As a result, equal angles K and M and then solve for a to determine the value of a.

(7a + 4 ) = (6a + 11)

= a+4 = 11

a = 7

Consequently, a has a value of 7.

Substitute the discovered value of an into one of the formulas to determine the measure of angles K and M.

m∠K = m∠M = (6(7) + 11)°

=(42 + 11)°

= 53°

As a result, the value of "a" is 7 as an angle and the value of "x" is 27 centimeters as a parallelogram's side.

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Answer:

It's B, 3(5 - 7p)

Step-by-step explanation:

3(5 - 7p)=15-21p

This is really simple, please try to learn the concept

Answer:

you have to aline it with what graph it is.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

Your answer will be 69

Step-by-step explanation:

Answer:

its A

Step-by-step explanation:

A

Answer:50

Step-by-step explanation:i said so

Answer:

78kg

Step-by-step explanation:

76×5= 380kg

380-72-74-75-81= 78kg

Answer:

2 cans

Step-by-step explanation:

1 can = $2

$4 divided by $2 is 2 cans

(a) The 10-year relative population change y1= 0.358 , y2= 0.358 , y4= 0.344 , y5= 0.325 , y6= 0.356 , y7= 0.353, y8=0.230 , y9= 0.301, y10= 0.255  b.

(a) The 10-year relative population change can be calculated as follows:

y1 = (5.3 - 3.9) / 3.9 = 0.358

y2 = (7.2 - 5.3) / 5.3 = 0.358

 y3 = (9.6 - 7.2) / 7.2 = 0.333

y4 = (12.9 - 9.6) / 9.6 = 0.344  

y5 = (17.1 - 12.9) / 12.9 = 0.325

y6 = (23.2 - 17.1) / 17.1 = 0.356

y7 = (31.4 - 23.2) / 23.2 = 0.353

y8 = (38.6 - 31.4) / 31.4 = 0.230

y9 = (50.2 - 38.6) / 38.6 = 0.301

y10 = (63.0 - 50.2) / 50.2 = 0.255

To compute the sample mean, median, and variance of the relative population change, we can use these values.

(b) To construct a time plot of the relative population change, we plot the values of y1 to y10 on the y-axis against the corresponding years on the x-axis. This plot will show the trend of the relative population change over time.

(c) Comparing the time plots in exercises 8.6 and 8.7, we can expect a correlation between xi (years) and yi (relative population change). To verify this correlation, we can compute the sample correlation coefficient using the formula (11 - 1)(y - 5) / (n - 1), where y is the sample mean of the relative population change. The correlation coefficient will indicate the strength and direction of the linear relationship between the years and the relative population change. Based on this coefficient, we can draw conclusions about the correlation between the two variables and explain the observed phenomenon.

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Answer:

b

Step-by-step explanation:

False. if you are given a graph with two shif table lines, the correct answer will always require you to move both lines.

In a graph with two shiftable lines, the correct answer may or may not require moving both lines. It depends on the specific scenario and the desired outcome or conditions that need to be met.

When working with shiftable lines, shifting refers to changing the position of the lines on the graph by adjusting their slope or intercept. The purpose of shifting the lines is often to satisfy certain criteria or align them with specific points or patterns on the graph.

In some cases, achieving the desired outcome may only require shifting one of the lines. This can happen when one line already aligns with the desired points or pattern, and the other line can remain fixed. Moving both lines may not be necessary or could result in an undesired configuration.

However, there are also situations where both lines need to be shifted to achieve the desired result. This can occur when the relationship between the lines or the positioning of the lines relative to the graph requires adjustments to both lines.

Ultimately, the key is to carefully analyze the graph, understand the relationship between the lines, and identify the specific criteria or conditions that need to be met. This analysis will guide the decision of whether one or both lines should be shifted to obtain the correct answer.

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Answer:

a=4b/u-4g/u

Step-by-step explanation:

You got this!

Special Product are the result of binomials being multiplied, or simplified further, and can be solved with ease using the First Last Inner Outer method. this product is not a special product.

Special Product (a+b) (a+b) = aa + ab + ab + bb = \(a^{2} + 2ab + b^{2}\).

we can use this formula anytime we are multiplying a binomial of the form a + b.

Factor as a Difference of Squares

factoring:  \(81a^{2} b^{4} - c^{6}\) = \((3^{4}a^{2} . b^{4}) - c^{6}\)

A difference of two perfect squares, \(A^{2} - B^{2}\) can be factored into

\((A+B)(A-B)\\A^{2} - AB + BA - B^{2}\\ A^{2} - AB + AB -B^{2}\\ A^{2} -B^{2}\)

AB = BA is he commutative property of multiplication from the expression.

-AB+BA equal zero and is therefore eliminated from the expression.

81 is the square of 9

\(a^{2}\) is the square of \(a^{1}\)

\(b^{4}\) is the square of \(b^{2}\)

\(c^{6}\) is the square of \(c^{3}\)

Factorization is \((9ab^{2}+c^{3}) . (9ab^{2}-c^{3} )\)

Factoring: \((9ab^{2}+c^{3})\)

A sum of perfect cubes, \(a^{3} + b^{3}\) can be factored into :\((a+b).(a^{2}-ab+b^{2})\\a^{3}-a^{2}b+ab^{2}-b^{2}a+b^{3}\\ a^{3}+(a^{2}b-ba^{2})+(ab^{2}-b^{2}a)+b^{3}\\ a^{3}+b^{3}\)

9 is not a cube(Binomial can not be factored as the difference of two perfect cubes)

Factoring: \((9ab^{2}-c^{3} )\)

A difference of two perfect cubes, \(a^{3} - b^{3}\) can be factored into

\((a-b).(a^{2}+ab+b^{2})\\a^{3}+a^{2}b+ab^{2}-ba^{2}-b^{2}a-b^{3}\\ a^{3}+(a^{2}b-ba^{2})+(ab^{2}-b^{2}a)-b^{3}\\ a^{3}-b^{3}\)

9 is not a cube(Binomial can not be factored as the difference of two perfect cubes)

Hence, 81a2b4 - c6 this solution deals with factoring binomials as the sum or difference of cubes.

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Heritability is a statistic that quantifies the proportion of observed variance in a group of individuals that can be attributed to genetic variance.

Heritability is a fundamental concept in genetics and behavioral sciences that helps understand the extent to which genetic factors contribute to observed variations in a particular trait within a population. It measures the proportion of phenotypic variation (differences in traits) that can be explained by genetic variation. Heritability estimates range from 0 to 1, where a value of 0 indicates that all observed variation is due to environmental factors, and a value of 1 suggests that all observed variation is due to genetic factors.

To calculate heritability, researchers typically study populations with varying degrees of genetic relatedness, such as twins or family members. By comparing the similarity of traits between individuals with known genetic relatedness, it is possible to estimate the contribution of genetic factors to the observed variance. Environmental factors that contribute to phenotypic variation are considered as part of the non-genetic or "environmental" component.

It is important to note that heritability estimates are population-specific and apply only to the particular group being studied. Additionally, heritability does not provide information about specific genes or the precise mechanisms by which genetic factors influence traits. Nonetheless, heritability serves as a valuable tool in understanding the relative importance of genetic and environmental factors in shaping individual differences within a population.

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Answer:

  yes

Step-by-step explanation:

You want a graph of P = 125 +50W.

The given equation is in slope-intercept form. The independent variable is W, and the dependent variable is P.

Usually, the independent variable is graphed on the horizontal axis, which you have done.

The dependent variable is graphed on the vertical axis, which you have done.

The axes are correctly labeled and graduated.

The "y-intercept" (P value) when the independent variable is zero is the constant in the equation, 125. You have correctly shown that on the graph.

The slope of the line is the coefficient of the independent variable (W) in the equation. You have correctly shown that P increases by 50 when W increases by 1.

Yes, you properly graphed the equation.

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Answer:

4

Step-by-step explanation:

Current standards indicate that a single subject research design should demonstrate a functional relation between independent and dependent variables with a minimum of three effects.

Single subject research designs, also known as single case experimental designs, are experimental designs commonly used in behavioral sciences to study the effects of interventions or treatments on individuals. These designs involve repeated measurement of the dependent variable under different conditions or phases.

To establish a functional relation between the independent and dependent variables, current standards suggest that a minimum of three effects should be demonstrated. These effects typically consist of a baseline phase, an intervention phase, and a return-to-baseline phase. The baseline phase serves as a control condition where the independent variable is absent or has no effect on the dependent variable. The intervention phase introduces the independent variable, and its effects on the dependent variable are observed.

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So, there are 3 more "parts" of students than of adults (5 - 2), right?

Those 3 parts are made up of 12 people.

12/3 = 4 people per part

2(4) = 8 adults

5(4) = 20 students

Answer:

2/5=8

Step-by-step explanation:

Answer:

18.136 units of distance

Step-by-step explanation:

d = sqrt((x2 - x1)^2 + (y2 - y1)^2)

where (x1, y1) = (2, 1) and (x2, y2) = (12, 18)

d = sqrt((12 - 2)^2 + (18 - 1)^2)

= sqrt(10^2 + 17^2)

= sqrt(329)

≈ 18.136

Therefore, the rock traveled approximately 18.136 units of distance.

The maximum abundance of species 1 if 250 of species 2 coexists with it is B. 500.

Determine the carrying capacity ratio between species 1 and 2.
Carrying capacity of species 1 = 1000
Carrying capacity of species 2 = 500
Ratio = 1000 / 500 = 2

Calculate the abundance of species 1 considering the presence of species 2.
Abundance of species 2 = 250
Abundance of species 1 = 2 * 250 = 500

So, the maximum abundance of species 1 if 250 of species 2 coexists with it is 500 (Option B).

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The measure of exterior angle ACD is 132°

The exterior angle theorem states that whenever a triangle's side is extended such that it creates another exterior(outside angle), the resultant exterior angle created is equal to the sum(addition) of the other two opposite (inner) interior angles of the triangle.

From the information given:

Angle A = 50; Angle B = 4x + 2, Angle ACD = 6x + 12

Therefore;

50 + 4x + 2 = 6x + 12

52 + 4x = 6x + 12

4x - 6x = 12 - 52

-2x = - 40

x = 20

Since x = 20, angle ACD = 6x + 12

The measure of angle ACD = 6(20) + 12 =132°

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One of Pryor's 10 Laws of shaping is D. Train one behavior at a time is one of Pryor's 10 Laws of shaping. This law emphasizes the importance of focusing on one behavior at a time when shaping behavior.

By doing so, the trainer can avoid confusing the animal and can more effectively reinforce the desired behavior. This law also helps the trainer to break down complex behaviors into smaller, more manageable parts, which can then be shaped individually.

According to Karen Pryor's 10 Laws of Shaping, one of the key principles is to train one behavior at a time. This is important because it helps the learner to focus on mastering a specific behavior without getting overwhelmed or confused by multiple tasks.

By concentrating on one behavior at a time, the trainer can provide clear, consistent reinforcement and feedback, which increases the likelihood of successfully shaping the desired behavior.

Overall, following this law can lead to more successful shaping and training outcomes.

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Among the provided options, Pryor's 10 Laws of Shaping suggests training one behavior at a time. This technique avoids confusion and ensures reliable behavior is established before moving to the next behavior.

According to Pryor's 10 Laws of Shaping, among the given options, the correct answer is: Train one behavior at a time. This rule focuses on the fact that trying to shape multiple behaviors simultaneously can often lead to confusion for the individual or animal being trained. Instead, it's more effective to focus on one behavior at a time, reinforcing each successful approximation towards the target behavior before moving on to the next. The goal is to build a strong, reliable behavior before adding complexity or new behaviors.

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Answer:

B.   3,158

Step-by-step explanation:

h(x) = -49x − 125

Let x = -67

h(-67) = -49(-67) − 125

          =3283-125

          = 3158

Answer:

Answer B

Step-by-step explanation:

To find the value of h(-67) for the function h(x) = -49x - 125,

we substitute -67 for x in the function and evaluate it.

h ( - 67 ) = - 49 ( - 67 ) - 125

Now we can simplify the expression:

h ( -67 ) = 3283 - 125

h ( -67 ) = 3158

Answer:

Non-Proportional

Hope this helps!

Take care!

Answer:

i think the answer is non- proportional

Step-by-step explanation:

Answer:

$254.20 -  5%= 241.49 US$

so you will save up to 14

Step-by-step explanation:

The picture is the full explanation for this question answer.

18.19 is the solution for the given improper function.

The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.

To add 8 11/12 and 9 5/18, we need to first find a common denominator. The smallest number that both 12 and 18 divide evenly is 36.

Converting 8 11/12 to an improper fraction:

8 11/12 = (8 × 12 + 11) / 12 = 107/12

Converting 9 5/18 to an improper fraction:

9 5/18 = (9 × 18 + 5) / 18 = 167/18

Now that we have a common denominator of 36, we can add the two fractions:

107/12 + 167/18 = (107 × 3) / (12 × 3) + (167 × 2) / (18 × 2)

= 321/36 + 334/36 = 655/36

So 8 11/12 + 9 5/18 = 655/36 or approximately 18.19.

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Answer:  1744.47

Step-by-step explanation:

i think this is the answer!!!!

Answer:

(−13)

Step-by-step explanation:

all lines perpendicular to it have a slope of

(

−

1

m

)

3

x

−

y

=

8

can be written as

XXXX

y

=

3

x

−

8

which is the slope intercept form, with a slope of

3

Any line perpendicular to

3

x

−

y

=

8

will have a slope of

(

−

1

3

)