Find the slope of the line that goes through the points (9,-13) and (7,3).

Answer:

https://estudy-helpers.com/history/question22769478#

Step-by-step explanation:

hope found the answer

Answer: Yes Leah Is Correct.

Step-by-step explanation: Leah is correct because if you have a rectangle divided into 4 parts than if you will be asked how much parts will you need to make this fraction a whole you’ll say 4 since if you say for example six you will be wrong since six is too much so if you shade one part in than it’s 1/4 ths now let’s say you shaded in 3/4th you will see 3 shaded and one more left not shaded in which gives the fraction the name 3/4.

hope this made sense.

The perimeter of a rectangle with width (s+5t) cm and length (s+2t) cm is 4s + 14t cm.

The perimeter of a rectangle is the sum of the lengths of all four sides.

In this case, the width is given as (s+5t) centimeters and the length is given as (s+2t) centimeters.

So the expression for the perimeter, P, in centimeters, is:

P = 2(width + length)

= 2[(s+5t) + (s+2t)]

= 2[2s + 7t]

= 4s + 14t

Therefore, the expression for the perimeter of the rectangle is 4s + 14t.

In conclusion, the formula for finding the perimeter of a rectangle is the sum of the lengths of all four sides. Using the given width and length values, the expression for the perimeter of the rectangle is calculated to be 4s + 14t centimeters.

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Complete question:

The width of a rectangle measures (s+5t) centimeters, and its length measures (s+2t) centimeters. Which expression represents the perimeter, in centimeters, of the rectangle?

Answer:

D and C

Step-by-step explanation:

1) You can cross check using desmos.

2) cos(120) is - 0.5

Answer:

3/4 of a centimeter

Step-by-step explanation:

if the scale is 1 centimeter to 1 meter then a 3/4 meter wheel will be a 3/4 centimeter wheel in the scale drawing.

The value of x in given figure is a whole number that is x = 6.6

When two tangent segment are drawn from an outside point to a circle, the sum of the dimensions of the first tangent segment and its exterior tangent segment equals the sum of the dimensions of the other secant segments and its exterior secant segment.

Given the image and the labelled measurement of two secant segments outside the predetermined circle that have a similar endpoint. We are required to determine what x's value is.

With these measurements, we can use the secant-secant theorem to solve for the value of x as we refer to and analyse the figure. We will therefore have this theorem applied.

(5) [(5) + ( x+4)] = (6) [6 + 7]

(5) [5+x+4] = (6) [13}

5 [9 + x] = 78

45 + 5x = 78

5x = 33

x = 6.6

Therefore the value of x is 6.6

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Participant observation research is a type of qualitative research where the researcher takes an active part in the activities of the people they are studying. In this case, Matt Desmond became a firefighter to better understand the teams of "hotshots" he was studying.

Participant observation research is a type of qualitative research where the researcher takes an active part in the activities of the people they are studying. This involves the researcher joining the group they are studying and taking part in their activities, such as conversations, rituals, and other activities. This allows the researcher to gain a more detailed and in-depth understanding of the group they are studying, as they can observe how they interact in their natural environment. In this case, Matt Desmond became a firefighter to better understand the teams of "hotshots" he was studying. By taking part in their activities, he was able to gain a better understanding of their culture, and the dynamics of working on a firefighting team. He was able to observe the team's behavior and reactions in a way that would not have been possible if he had not been part of the team. By taking part in the activities of the team, he was able to gain a more detailed and accurate picture of the team.

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The slope coefficient in a regression model represents the change in the response variable for a one-unit change in the predictor variable, holding all other predictors constant.

The significance of the slope coefficient is determined by the p-value associated with it in the regression output. A p-value less than 0.05 indicates that the slope coefficient is significantly different from zero at a 5% level of significance, meaning that the predictor variable has a significant effect on the response variable. A p-value greater than 0.05 suggests that the predictor variable does not have a significant effect on the response variable.

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Complete Question:

What is the slope coefficient? Is this coefficient significant at a 5% level of significance (alpha=0.05)?

Answer:

use the formula: mEq = (mg x valence) / atomic or molecular weight

Step-by-step explanation:

Bryant Industries uses forecasting to estimate the number of orders that will be placed by their customers. The table below gives the sales figures for the last four months.Month2345Sales92491942004There are different forecasting techniques used by companies like Bryant Industries to predict future sales.

One of the most widely used methods is the time-series method. This method is particularly useful when the demand for a product or service changes over time and when there are no external factors that affect the sales. In this case, we can use a time-series method called the moving average to estimate future sales. The moving average is a time-series method that uses the average of past sales data to estimate future sales. It is particularly useful when there are no external factors that affect the sales. In this case, we can use a 3-month moving average to estimate future sales. The 3-month moving average is calculated as follows: (924 + 919 + 420) / 3 = 754.33. This means that we can expect sales of around 754 units next month. The moving average method is easy to use and is a good way to get a quick estimate of future sales. However, it has some limitations. For example, it does not take into account external factors that may affect sales, such as changes in the economy or in consumer behavior.

In conclusion, Bryant Industries can use the moving average method to estimate future sales. However, they should also consider other factors that may affect sales, such as changes in the economy or in consumer behavior. By doing so, they can make more accurate forecasts and improve their overall performance.

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Correct answer is C) none

I did the assignment, the other answer is incorrect.

The phase margin of the system is approximately 7.38 degrees.

To find the phase margin, we first need to find the closed-loop transfer function of the system. For a unity feedback system, the closed-loop transfer function is given by:

T(s) = G(s) / (1 + G(s))

where G(s) is the forward path transfer function.

Substituting G(s) into the equation above, we get:

T(s) = 100 (s + 2) s(s + 1)(s + 4) / [s(s + 1)(s + 4) + 100 (s + 2)]

Simplifying the expression above, we get:

T(s) = 100 (s + 2) / [s(s + 1)(s + 4) + 100 (s + 2)]

To find the phase margin, we need to find the frequency at which the phase of the closed-loop transfer function is -180 degrees. We can do this by setting the denominator of the closed-loop transfer function equal to zero and solving for the frequency. This frequency is known as the phase crossover frequency.

Setting the denominator of the closed-loop transfer function equal to zero, we get:

s(s + 1)(s + 4) + 100 (s + 2) = 0

Expanding the equation above, we get:

s^3 + 5s^2 + 4s + 200 = 0

Using a numerical method or a graphical method, we can find that the phase crossover frequency is approximately 2.02 rad/s.

To find the phase margin, we need to evaluate the phase of the closed-loop transfer function at the frequency of 2.02 rad/s. We can do this by substituting s = j2.02 into the closed-loop transfer function and computing the phase angle.

Substituting s = j2.02 into the closed-loop transfer function, we get:

T(j2.02) = 100 (j2.02 + 2) / [j2.02(j2.02 + 1)(j2.02 + 4) + 100 (j2.02 + 2)]

Taking the complex conjugate of the denominator and multiplying the numerator and denominator by the complex conjugate of the denominator, we get:

T(j2.02) = [100 (j2.02 + 2)] / [|j2.02|^2 (j2.02 + 1)(j2.02 + 4) + 100 (j2.02 + 2)] × e^jθ

where θ is the phase angle.

Computing the magnitude and phase angle of the closed-loop transfer function at the frequency of 2.02 rad/s using a calculator or software, we get:

|T(j2.02)| = 0.2806

θ = -172.62 degrees

The phase margin is then given by:

PM = 180 degrees + θ

PM = 180 degrees - 172.62 degrees

PM = 7.38 degrees

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The given question is incomplete, the complete question is:

For the unity feedback system, the forward path transfer function is: G(s) = 100 (s + 2) s(s + 1)(s + 4) . find the phase margin.

Answer:

D) (90, 60)

Step-by-step explanation:

Hope this helps. Pls give brainliest.

The number of arrangements of the letters in mathematics such the last vowel in the arrangement is an i are 30,240.

To find the number of arrangements of the letters in "mathematics" such that the last vowel in the arrangement is an "i". Counting the vowels, we have three vowels that are a, e, and i.

Count the number of ways to arrange the three vowels in the word. This is a permutation problem, and we can use the formula for permutations of n objects taken r at a time, which is:

P(n, r) = n! / (n-r)!

So, putting the values,

P(3, 3) = 3! / (3-3)! = 3! / 0! = 6

There are 6 methods to arrange a, i and e in the word. Now, we have to arrange the consonants. There are 7 consonants in "mathematics", but we have already placed the last vowel as "i", so we only need to arrange the remaining 6 letters. This is again a permutation problem, and we can use the formula for permutations of n objects taken r at a time:

P(n, r) = n! / (n-r)!

Putting values,

P(7, 6) = 7! / (7-6)!

= 7! / 1!

= 5040

There are 5040 ways to arrange the remaining 6 letters in the word.

Finally, we can multiply the number of arrangements of the vowels and the number of arrangements of the remaining consonants to get the total number of arrangements that meet the given condition:

6 * 5040 = 30,240

Therefore, there are 30,240 arrangements of the letters in "mathematics" such that the last vowel in the arrangement is an "i".

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Answer:

570

Step-by-step explanation:

yan sagot ko ehh balakajan

Answer:

all 3 options are true : A, B, C

Step-by-step explanation:

warning : it has come to my attention that some testing systems have an incorrect answer stored as right answer for this problem.

they say that A and C are correct.

but I am going to show you that if A and C are correct, then also B must be correct.

therefore, my given answer above is the actual correct answer (no matter what the test systems say).

originally the information about the alignment of the point F in relation to point E was missing.

therefore, I considered both options :

1. F is on the same vertical line as E.

2. F is not on the same vertical line as E.

because of optical reasons (and the - incomplete - expected correct answers of A and C confirm that) I used the 1. assumption for the provided answer :

the vertical line of EF is like a mirror between the left and the right half of the picture.

A is mirrored across the vertical line resulting in B. and vice versa.

the same for C and D.

this leads to the effect that all 3 given congruence relationships are true.

if we consider assumption 2, none of the 3 answer options could be true.

but if the assumptions are true, then all 3 options have to be true.

now, for the "why" :

remember what congruence means :

both shapes, after turning and rotating, can be laid on top of each other, and nothing "sticks out", they are covering each other perfectly.

for that to be possible, both shapes must have the same basic structure (like number of sides and vertices), both shapes must have the same side lengths and also equally sized angles.

so, when EF is a mirror, then each side is an exact copy of the other, just left/right being turned.

therefore, yes absolutely, CAD is congruent with CBD. and ACB is congruent to ADB.

but do you notice something ?

both mentioned triangles on the left side contain the side AC, and both triangles in the right side contain the side BD.

now, if the triangles are congruent, that means that each of the 3 sides must have an equally long corresponding side in the other triangle.

therefore, AC must be equal to BD.

and that means that AC is congruent to BD.

because lines have no other congruent criteria - only the lengths must be identical.

The mean temperature change between the two cold seasons is (b) went up by 0.3°

The given parameters are:

2011-2012:

2012-2013:

The mean is calculated as

Mean = Sum/Count

So, we have

2011 - 2012 mean = (61.1 + 51.9 + 53.6 + 56.5)/4

Evaluate

2011 - 2012 mean = 55.8

Also, we have

2012 - 2013 mean = (64.2 + 56.8 + 48.3 + 55.1)/4

Evaluate

2012 - 2013 mean = 56.1

The difference in these mean values are

Difference = 56.1 - 55.8

Evaluate

Difference = 0.3

Hence, the mean temperature change between the two cold seasons is (b) went up by 0.3°

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Answer:

is the picture moving or am I tripping

Step-by-step explanation:

I think 1/4

Answer:

\(b)8\)

is the answer it's was helpful to you

Answer:

B ) 8

Is the answer have a great day

Answer:

The number you would add to both sides of the equation to use the "Completing the Square" method would be 16.

Step-by-step explanation:

To find the number to add to both sides of an equation to complete the square, divide the first-degree term's coefficient by 2 and square your remainder. In this case, the coefficient of the first-degree term is -8. After dividing by 2 and squaring it, you'll get 16, so that is the number you must add to both sides of the equation in order to complete the square.

Answer:

give him brainliest

Step-by-step explanation:

lol

Answer:

The answer to the question provided is \( \frac{6}{7}\).

Answer: 369

Step-by-step explanation:

This is becuase 18% of 450 is 81, and 18% off means you subract the 81 leaving 369.

The distance L from the point (x, y) on the graph of the line 6x + 4y = 7 to the origin (0, 0) can be expressed as a function of x as L(x) = |(7 - 6x)/√(36 + 16)|.

To find the distance from a point to the origin, we can use the distance formula. The distance between two points (x1, y1) and (x2, y2) is given by √[\((x2 - x1)^2 + (y2 - y1)^2\)].

In this case, the point (x, y) lies on the line 6x + 4y = 7. We can rewrite this equation in terms of y as y = (7 - 6x)/4.

To find the distance from (x, y) to the origin (0, 0), we substitute the values into the distance formula:

L(x) = √[\((x - 0)^2 + ((7 - 6x)/4 - 0)^2\)]

= √[\(x^2 + (7 - 6x)^2/16\)]

= √[\(16x^2 + (7 - 6x)^2\)]/4

= √[\(256x^2 + (49 - 84x + 36x^2)\)]/4

= √[\((292x^2 - 84x + 49)\)]/4

Simplifying further, we get L(x) = |(7 - 6x)/√(36 + 16)|, which represents the distance from the point (x, y) to the origin (0, 0) as a function of x.

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Answer:

-4 = s

Step-by-step explanation:

6=-3(s+2) multiply -3 into the parenthesis.

6=-3s-6 add 6 to the other side

12=-3s divide by -3 on both sides.

-4=s

Answer:

18.4

Step-by-step explanation:

9.2 + 9.2 = 18.4

The value of the angle θ₁, located in Quadrant IV with sin(θ₁) = -13/85, is such that cosθ₁ = 84/85.

In the given scenario, the angle θ₁ is located in Quadrant IV and sin(θ₁) is given as -13/85. We can use the trigonometric identity to determine the value of cosθ₁.

Using the Pythagorean identity sin²θ + cos²θ = 1, we can substitute sin(θ₁) = -13/85:

(-13/85)² + cos²θ₁ = 1

Simplifying:

169/7225 + cos²θ₁ = 1

cos²θ₁ = 1 - 169/7225

cos²θ₁ = (7225 - 169)/7225

cos²θ₁ = 7056/7225

Taking the square root of both sides, we get:

cosθ₁ = √(7056/7225)

Since the angle θ₁ is located in Quadrant IV where cosθ₁ is positive, the value of cosθ₁ is:

cosθ₁ = √(7056/7225)

Simplifying the square root:

cosθ₁ = 84/85

Therefore, the value of the angle cosθ₁ is 84/85.

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The complete question is:

The angle θ₁ is located in Quadrant IV and  sin(θ₁) = -13/85. What is the value of the angle cosθ₁?

Answer:

Step-by-step explanation:

Jason can check his answer isolate the variable, solving the operations and substituting the (x) value in the equation.

The clearance rules to solve the problem are the following:

The sign rules to solve the problem are the following:

Solving the equation we have:

-8. 5x – 3. 5x = –78

Two like signs add the values and keep the common sign.

-12x = -78

What is multiplying goes to the other side of the equality by dividing.

x = -78 / -12

x = 6.5

Substituting the (x) value in the equation we can check the answer and we get:

-8. 5x – 3. 5x = –78

-8.5(6.5) - 3.5(6.5) = -78

-55.25 - 22.75 = -78

- 78 = - 78

An equation is the equality between two algebraic expressions, which have at least one unknown or variable.

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A plasmid used in both yeast and bacteria requires two different selection markers because the same selection may not work for both hosts and bacteria and yeast recognize different promoters.

When using a plasmid in both yeast and bacteria, it is important to have two different selection markers for several reasons. First, the same selection, such as the presence of an antibiotic, may not be effective in both hosts. Different organisms have varying sensitivities to antibiotics, so a marker that works in bacteria may not work in yeast or vice versa. Therefore, two different selection markers are needed to ensure successful selection in both hosts.

Additionally, bacteria and yeast recognize different promoters, which are DNA sequences that control the initiation of gene expression. Promoters are specific to each organism and play a crucial role in regulating gene expression. By incorporating two different selection markers into the plasmid, each marker can be driven by a promoter recognized specifically by the corresponding host. This ensures that the selection marker is effectively expressed in the appropriate host organism, enabling accurate selection and maintenance of the plasmid.

In summary, using two different selection markers in a plasmid intended for both yeast and bacteria is necessary because the same selection may not be effective in both hosts, and different promoters are recognized by bacteria and yeast. This approach allows for successful selection and maintenance of the plasmid in both organisms.

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