i really need help , can anybody please help me???

Answer:

m = 3

Step-by-step explanation:

-5m - 10 = -25

-5m = -15

m = 3

Answer:

\( - 5m - 10 = - 25 \\ - 5m = 10 - 25 \\ - 5m = - 15 \\ m = \frac{( - 15)}{ (- 5)} \\ \boxed{m = 3}✓\)

A residual is the difference between "the measured and predicted values of the quantity of interest".

In regression analysis, a residual would be the difference between an observable and anticipated value.

The formula is;

Residual = Observed value – Predicted value

Some key features regarding the residuals are-

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Answer:C/n=D

Step-by-step explanation:I hope this help you get the answer

The surface area of the cylinder is 314.6 square inches.

The surface area of a cylinder is given by the formula:

S.A. = 2πrh + 2πr²

Where r is the radius of the circular base of the cylinder and h is the height of the cylinder.

If we know the radius and height of a cylinder, we can easily calculate its surface area.

To solve for the surface area of the cylinder whose radius is 5 inches, we use the formula and substitute the values. The net of a cylinder whose radius of the base is labeled 5 inches and a rectangle with a height labeled 4 inches is given below:

Given the radius, r = 5 inches, height of cylinder, h = 4 inches.

Substituting the values in the formula:

S.A. = 2πrh + 2πr²

= 2 × 3.14 × 5 × 4 + 2 × 3.14 × 5²

= 157.6 + 157

= 314.6 square inches

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Answer:

x = 9

Step-by-step explanation:

23-5 =18 18/2 is 9 your welcome

Answer:

\(2x+5=23\)

\(2x=23-5\)

\(2x=18\)

\(x=9\)

------------------------

hope it helps...

have a great day!!

Answer:

63 miles

Step-by-step explanation:

Bonnie ran a total of 18 miles over the course of 2 track practices. How many miles would Bonnie have run after 7 track practices?

2 track practices = 18 miles

7 track practices = y miles

Cross Multiply

2 track practices × y miles = 18 miles × 7 track practices

y miles = 18 miles × 7 track practices/ 2 track practices

y miles = 63 miles.

Therefore, Bonnie will have run 63 miles after 7 track practices

The likelihood of selecting a cut of pepperoni pizza moment given merely have as of now chosen a cut of cheese pizza to begin with is 4/7 or roughly 0.57.

There are a add up to of 8 cuts of pizza, and in the event that you haphazardly select a cut of cheese pizza to begin with, there are presently as it were 3 cuts of cheese pizza cleared out out of 7 add up to cuts cleared out. Since you need to discover the likelihood of selecting a cut of pepperoni pizza moment given that a cut of cheese pizza has as of now been chosen, you would like to calculate the likelihood of selecting a cut of pepperoni pizza from the remaining 4 cuts of pepperoni pizza and 3 cuts of cheese pizza.

The likelihood of selecting a slice of pepperoni pizza moment given that you simply have as of now chosen a cut of cheese pizza to begin with can be calculated utilizing the conditional likelihood equation:

P(Pepperoni moment | Cheese to begin with) = P(Pepperoni moment and Cheese to begin with) / P(Cheese to begin with)

The likelihood of selecting a cut of pepperoni pizza moment and a cut of cheese pizza to begin with is \(4/8 x 4/7 = 16/56\). The likelihood of selecting a cut of cheese pizza to begin with is 4/8, which disentangles to 1/2. Subsequently: P(Pepperoni moment | Cheese to begin with) = (16/56) / (1/2) = 4/7

The complete question is:

You and some friends ordered pizza and have four slices of pepperoni pizza and four slices of cheese pizza remaining. Find the probability that you select a slice of pepperoni pizza second given that you randomly selected a slice of cheese pizza first.

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Answer:

the correct answer is option c. y= 192/x

Answer:

30 cm

Step-by-step explanation:

Given:

area of rhombus (A) = 240 cm2

one diagonal (d1) = 16

other diagonal (d2) = ?

Now

area of rhombus =240

1/2 × d1 × d2 = 240

1/2 × 16 × d2 = 240

d2 = 240 /8

d2 = 30 cm

It is equal to 32y+32 if you wanted to simplify it.

Answer:

32y + 32

Step-by-step explanation:

8 × 4y + 8 × 4

Answer:

6,942 steps left!

Step-by-step explanation:

OK so this is easy so we know that if 1 / 19 = 0.052 we minus that by - 3 because - 3 is our exponent that gives us 3.052 so now we just take 3.052 - 10,000 which gives us exactly 6942 you two steps so he needs 6942 steps left

Answer:

3,141 steps

Step-by-step explanation:

Let x be equal to the number of steps he needs to reach his goal

10,000 = \((\frac{1}{19} )^{-3}\)+ x

10,000 = 6,859 + x

3,141 = x

In Herrnstein's matching equation, the letters and numbers to the left of the equals sign refer to behaviour.

THE MATCHING LAW

Herrnstein's Experiment Herrnstein (1961) conducted an experiment with pigeons in a room with two response buttons, red and white. Each key was assigned its own VI gain schedule. For example, under one condition, the left button pick was boosted on a VI 135 second schedule, and the right button pick was boosted on a VI 270 second schedule.

After the birds have learned as much as possible about this electoral situation, how do they distribute their responses? We trained them for days and then measured their reactions. As is often the case with VI schedules, birds returned many responses for each reinforcer received. Most interesting, however, is that in this condition, where two-thirds of the reinforcers came from the left button, the birds performed about two-thirds of the responses with the left button. That is, the proportion of left button responses equaled or matched the proportion of reinforcers delivered by the left button. In another condition, two birds received only about 15% of reinforcers from the left key and responded about 15% to that key.

Based on these results, Herrnstein proposed the following general principle for individual behavior when presented with alternative sequences. So, what you think makes sense rather than other options available at that particular moment.

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Answer:

5832

Step-by-step explanation:

54+27=81x72=5832

Answer:

D

Step-by-step explanation:

The very first thing you have to realize is that the temperature goes further down the minus scale which means that only A and D can be correct. That's because time in this question is positive.

So if you just try the first value (x = 3), you will get

-3/2 * 3 = -9/2 which would mean that you would add -4 1/2 onto - 10 which is much larger than - 10

A: is not the answer.

-2/3 * 3 - 10 = -6/3 - 10 = -2 - 10 = - 12

That is the answer you should get. The answer is D.

Answer:

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.

Step-by-step explanation:

Answer:

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cellMitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell

Step-by-step explanation:

Answer:

3 i think

Step-by-step explanation:

Answer:

The coordinates of point F would be: (x, y) = (8.2, 5.7)

Step-by-step explanation:

In other words, the location of a point P with the x-coordinate and the corresponding y-coordinate will be: P(x, y)

The location of point 'F' lies on the x = 8.2 (x-coordinate) and their corresponding value of y=5.7 (y-coordinate).

i.e at x = 8.2, y = 5.7

Thus, the coordinates of point F would be: (x, y) = (8.2, 5.7)

When comparing the climbing rates of the three climbers, I would prefer to use a table representation.

A table representation allows for a clear and organized display of the climbers' rates in a structured format. It enables a direct comparison of the rates side by side, making it easier to identify patterns, differences, and similarities in their climbing speeds.

While graphs can also be used to compare rates visually, they may not provide the same level of precision and clarity as a table. Graphs are more useful for illustrating trends, patterns, and changes over time, whereas a table provides a concise summary of the rates at a specific point or interval.

Equations in the form of d = rate * time can be helpful for calculations and predicting distances, but they might not be as effective for direct rate comparisons. Equations are more useful for individual calculations rather than comparing rates between different climbers.

Therefore, for comparing climbing rates among the three climbers, a table representation would be the preferred choice as it offers a clear and concise overview of the rates for easy comparison.

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Answer:

the each T-shirt and each pair of pants cost is $20 and $12 respectively

Step-by-step explanation:

The computation of the each T-shirt and each pair of pant cost is shown below:

Let us assume each T-shirt be x

And, the each pair of pant be y

Now the equations are

8x + 5y = $220

5x + y = $112

It could be write as

y = $112 - 5x

Now put the value of y in equation 1

8x + 5($112 - 5x) = $220

8x + $560 - $25x = $220

-17x = -$340

x = 20

And, y = $112 - 5(20)

= $112  - $100

= 12

Hence, the each T-shirt and each pair of pants cost is $20 and $12 respectively

The facts which are true for the graph of the function given f(x)= log 0.725 x are;

We say that 'b' is the logarithm of 'c' with base 'a' if and only if 'a' to the power 'b' equals 'c'. This is another approach to indicate the power of numbers.

\(a^b\) = c

and, b log a =c

As a function's range is the set of all feasible values of f(x), its domain is the set of all possible values of x.

On that note, any number in the range x=0 causes the function to be undefined, hence the function's range is x> 0.

Also f(x) can be any real number, the set of all real numbers comprises the function's range.

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To determine the magnification values of the proportional controller (P), the integral proportional controller (PI), and proportional controller of integral derivatives (PID) using the Ziegler-Nichols method, we need to follow a few steps. I'll guide you through the process:

Step 1: Determine the open-loop transfer function (Gm(s)) of the process. Given:

Gp(s) = 10/((s + 2)(2s + 1))

To obtain the open-loop transfer function, we need to set the controller gain to 1. Therefore, Gm(s) = Gp(s).

Step 2: Find the frequency at which the magnitude of Gm(s) crosses 0 dB (decibels). This frequency is called the ultimate frequency (fu). We can determine fu by finding the frequency at which the phase angle of Gm(s) is -180 degrees.

Step 3: Calculate the ultimate gain (Ku) at the ultimate frequency (fu). Ku is the magnitude of Gm(s) at fu.

Step 4: Use the values of fu and Ku to determine the appropriate controller gains based on the Ziegler-Nichols method.

Now, let's calculate these values.

Step 1: Open-loop transfer function (Gm(s)) is the same as Gp(s):

Gm(s) = 10/((s + 2)(2s + 1))

Step 2: To find the ultimate frequency (fu), we need to find the frequency at which the phase angle of Gm(s) is -180 degrees.

At s = jω (where j is the imaginary unit), the magnitude of Gm(s) is given by:

|Gm(jω)| = 10/|((jω + 2)(2jω + 1))|

To find the frequency at which the phase angle is -180 degrees, we need to solve the following equation:

arg(Gm(jω)) = -180 degrees

Step 3: Once we determine the ultimate frequency (fu), we can find the ultimate gain (Ku) at that frequency by substituting ω = 2πfu into |Gm(jω)|.

Step 4: Based on the Ziegler-Nichols method, we can determine the controller gains as follows:

Proportional Controller (P):

Gain (Kp) = 0.5 * Ku

Integral Proportional Controller (PI):

Gain (Kp) = 0.45 * Ku

Integral Time (Ti) = Tu/1.2

Proportional Controller of Integral Derivatives (PID):

Gain (Kp) = 0.6 * Ku

Integral Time (Ti) = Tu/2

Derivative Time (Td) = Tu/8

Now that we have the steps and formulas, let's calculate the values for the given process.

Step 2 (cont.): Solving the equation arg(Gm(jω)) = -180 degrees, we find:

10/|((jω + 2)(2jω + 1))| = -180 degrees

By evaluating the expression above for various ω values, we find that ω = 3.16 rad/s is the frequency at which the phase angle is -180 degrees.

Step 3 (cont.): Substituting ω = 2πfu = 2π * 3.16 rad/s into |Gm(jω)|, we get:

|Gm(jω)| = 10/|((j * 3.16 + 2)(2j * 3.16 + 1))|

Calculating the magnitude, we find that Ku = 2.53.

Step 4 (cont.): Now, using the Ku value, we can calculate the appropriate controller gains:

Proportional Controller (P):

Kp = 0.5 * Ku = 0.5 * 2.53 = 1.265

Integral Proportional Controller (PI):

Kp = 0.45 * Ku = 0.45 * 2.53 = 1.1385

Ti = Tu/1.2 = 3.16/1.2 = 2.6333

Proportional Controller of Integral Derivatives (PID):

Kp = 0.6 * Ku = 0.6 * 2.53 = 1.518

Ti = Tu/2 = 3.16/2 = 1.58

Td = Tu/8 = 3.16/8 = 0.395

To summarize, the magnification values for the Ziegler-Nichols method are as follows:

Proportional Controller (P):

Gain (Kp) = 1.265

Integral Proportional Controller (PI):

Gain (Kp) = 1.1385

Integral Time (Ti) = 2.6333

Proportional Controller of Integral Derivatives (PID):

Gain (Kp) = 1.518

Integral Time (Ti) = 1.58

Derivative Time (Td) = 0.395

These values can be used to configure the respective controllers for the given process.

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Answer:

its something common to most i think just dont worry about it the messages you do see are the real stuff if you really want to get rid of that problem tho contact support or who ever is incontrol of brainly

Step-by-step explanation:

9/10 mile = 5 min

9/10 ÷ 5 mile = 1 min

9/10 × 1/5 mile = 1 min

9/50 mile = 1 min

Answer:

5 inches

Step-by-step explanation:

We need to converver the cm to inches.

\(\frac{12.5 cm}{1}\) · \(\frac{1 in}{2.54 cm}\) = \(\frac{12.5 in}{2.54}\) = 4.92125984252 Rounded to the nearest whole number is 5 inches.

Helping in the name of Jesus.

Answer:

It's 30.72

Step-by-step explanation:

Take your total and times it by the percentage (20 in this case) and then divide by 100.

total: 25.60$

tip: 20% of total

25.60 * 20 = 512

512/100 = 5.12

25.60 + 5.12 = 30.72

The conclusions are as follows:

a. We reject the null hypothesis.

b. The p-value for this test is approximately 0.001.

To complete parts a and b, we can follow the steps for hypothesis testing.

a. The z-test statistic can be calculated using the formula:

z = (\(\bar{X}\) - μ) / (σ / √n)

Given:

\(\bar{X}\) = 49

σ = 11

n = 32

Substituting these values into the formula, we get:

z = (49 - 47) / (11 / √32) ≈ 2.90

The z-test statistic is approximately 2.90 (rounded to two decimal places).

To determine the critical z-score(s), we need to find the z-value that corresponds to the significance level α = 0.10. Since the alternative hypothesis is one-sided (μ > 47), we are performing a right-tailed test.

Using a standard normal distribution table or a calculator, the critical z-score for a right-tailed test at α = 0.10 is approximately 1.28 (rounded to two decimal places).

Because the test statistic z = 2.90 is greater than the critical z-score of 1.28, we reject the null hypothesis.

b. The p-value represents the probability of obtaining a test statistic as extreme as the observed value (or more extreme) assuming the null hypothesis is true. Since the alternative hypothesis is μ > 47, we are looking for the probability in the right tail of the distribution.

Using a standard normal distribution table or a calculator, we can find the p-value corresponding to the z-test statistic z = 2.90. The p-value is the area under the curve to the right of 2.90.

The p-value is approximately 0.001 (rounded to three decimal places).

Therefore, the conclusions are as follows:

a. We reject the null hypothesis.

b. The p-value for this test is approximately 0.001.

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Answers:

==========================================================

Explanation:

x = smaller number

2x-5 = larger number, since it's five less than twice the smaller number

The sum of both values is 43, so,

(smaller)+(larger) = 43

(x) + (2x-5) = 43

3x-5 = 43

3x = 43+5

3x = 48

x = 48/3

x = 16 is the smaller number

2x-5 = 2*16-5 = 32-5 = 27 is the larger number

Check: 16+27 = 43

The answer is confirmed.