Please help with this question

The equivalent expression of this 19 - 6(-k + 4) will be 6k + 5.

Given that:

Expression, 19 - 6(-k + 4)

The equivalent is the expression that is in different forms but is equal to the same value.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less complicated.

Simplify the expression, then we have

⇒ 19 - 6(-k + 4)

⇒ 19 + 6k - 24

⇒ 6k - 5

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Answer:

50/77

Step-by-step explanation:

(1÷2 3/4)+(1÷3 1/2)

2 3/4 is same as 11/44

1/2 is same as 7/2

so to divide fraction you have to flip the second number and multiply

so 1 times 4/11=4/11

and 1 times 2/7=2/7

4/11 +2/7=28/77+22/77=50/77

Answer:

5624 divided by 5 is 1124.8

7792 divided by 4 is 1948

9015 divided by 8 is 1138.125

8064 divided by 6 is 1344

Hope this helps :D

Answer:

here you go....

Step-by-step explanation:

son 30 y si sumas con 20 son 96

(a) After 4500 years, the sample will remain 3.9 mg.

(b) The sample will remain 15 mg after 1369 years.

The result is obtained by using the exponential decay equation.

The exponential decay equation can be used to calculate radioactive decay for the activity, the nuclei, and also the mass. The exponential decay equation for the mass is

\(m = m_{o} e^{-\lambda t}\)

Where

The half-life of radium-226 is 1600 years and the mass of a sample is 27 mg.

(a) What is the remaining mass after 4500 years?

(b) What is the decay time if the remaining mass is 15 mg?

First, let's calculate the decay constant.

λ = 0.693/T½

λ = 0.693/1600

λ = 0,000433

After 4500 years, the remaining mass is

\(m = m_{o} e^{-\lambda t}\)

\(m = 27 e^{-0.000433 \times 4500}\)

m = 27 × 0.142

m = 3.8 mg

If the remaining mass is 15 mg, the decay time is

\(m = m_{o} e^{-\lambda t}\)

\(15 = 27 e^{-0.000433 t}\)

\(ln \frac{15}{27} = ln (e^{-0.000433 t})\)

\(ln \frac{15}{27} = -0.000433 t\)

-0.588 = - 0.000433t

t = 1357.9 years

Hence,

(a) After 4500 years, the sample will remain 3.9 mg.

(b) The sample will remain 15 mg after 1369 years.

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Answer:

12 im pretty sure median is like middle

I hope this helps! :)

Answer:

mayve 12

Im sorry if its wrong i took this lesson 3 years ago but i think this is right

The system equation that models the amount of calories from fats (f) and proteins (p) that the individual can consume to reach 1,800 calories is: f + p = 1,200. The equation that relates calories from protein (p) to calories from fat (f) based on the prescribed diet is: p = 3f. Solving the system of equations, we find that the individual should consume 300 calories from fats and 900 calories from proteins.

To find the equation that models the amount of calories from fats and proteins that the individual can consume in order to reach 1,800 calories, we consider that 600 calories will come from carbohydrates. Since the total goal is 1,800 calories, the remaining calories from fats and proteins should add up to 1,800 - 600 = 1,200 calories. Therefore, the equation is f + p = 1,200.

Based on the prescribed diet, the individual is required to consume calories from protein that are three times the calories from fat. This relationship can be expressed as p = 3f, where p represents the calories from protein and f represents the calories from fat.

To solve the system of equations, we substitute the value of p from the second equation into the first equation: f + 3f = 1,200. Combining like terms, we get 4f = 1,200, and dividing both sides by 4 yields f = 300. Substituting this value back into the second equation, we find p = 3(300) = 900.

Therefore, the individual should consume 300 calories from fats and 900 calories from proteins to meet the diet requirements and achieve a total of 1,800 calories.

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From these examples, we can conclude that a point has a nonnegative abscissa and positive ordinate when the x-coordinate is greater than or equal to zero, and the y-coordinate is greater than zero.

To locate the nonnegative abscissa and positive ordinate, we need to understand what these terms mean.

The abscissa refers to the x-coordinate on a graph, while the ordinate refers to the y-coordinate. The nonnegative abscissa means that the x-coordinate must be greater than or equal to zero, and the positive ordinate means that the y-coordinate must be greater than zero.

To find the nonnegative abscissa and positive ordinate, we can plot points on a coordinate plane. Let's consider a few examples:

Example 1:
Point A: (0, 3)
In this example, the abscissa (x-coordinate) is 0, which is nonnegative. The ordinate (y-coordinate) is 3, which is positive. Therefore, point A has a nonnegative abscissa and positive ordinate.

Example 2:
Point B: (2, -4)
In this example, the abscissa (x-coordinate) is 2, which is nonnegative. However, the ordinate (y-coordinate) is -4, which is not positive. Therefore, point B does not have a positive ordinate.

Example 3:
Point C: (-1, 5)
In this example, the abscissa (x-coordinate) is -1, which is not nonnegative. Therefore, point C does not have a nonnegative abscissa.

From these examples, we can conclude that a point has a nonnegative abscissa and positive ordinate when the x-coordinate is greater than or equal to zero, and the y-coordinate is greater than zero.

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0.2 / 0.22

it would've been 0.22222222 but if you cut it short its 0.2 or 0.22.

Answer:

1 and 1/4

Step-by-step explanation:

add 3/4 and 1/2, divide 1/2 into 2/4 and when you add 2/4 to 3/4 you have an extra quarter. therefor you have 4/4 and 1/4 which is 1 and 1/4.

hope this helps <3

Answer:

\(1\frac{1}{4}\)

Step-by-step explanation:

Step 1: Add the given values (Since we don't know the original amount and we are given the amount of which is changed with, we need to add those amounts together to know by how much the liquid beaker changed.)

\(\frac{3}{4} = 0.75\\\\\frac{1}{2} = 0.5\\\\0.5 + 0.75 = 1.25\\\\\frac{3}{4} + \frac{1}{2} = 1\frac{1}{4}\)

Therefore, the overall change in the amount of liquid in the beaker is \(1\frac{1}{4}\) liters.

Answer:

pain in the a§§......................

The probabilities P(Z > -1.23), P(Z < -1.41), and P(0.34 << 2.09) are all equal to 0.

(a) To calculate P(Z > -1.23), we can use the standard normal distribution table or a calculator. Since the standard normal distribution is symmetric, the probability of Z being greater than -1.23 is the same as the probability of Z being less than 1.23, which is approximately 0.

(b) Similarly, to calculate P(Z < -1.41), we can use the standard normal distribution table or a calculator. The probability of Z being less than -1.41 is approximately 0.

(c) The expression P(0.34 << 2.09) indicates a range of values between 0.34 and 2.09. However, since the standard normal distribution is continuous, the probability of a single value occurring is always 0. Therefore, the probability of a range of values, like in this case, is also 0.

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Answer:

381 people helped

2x+6 = 20

take 6 from both sides

2x = 14

divide by 2 on both sides

x = 7

Step-by-step explanation:

In summary, when using the first-order, centered method with a step size of Ax=0.1, the numerical estimate of the derivative of the function f(x) = x^3 + x^2-3x-1 at x=-1 is approximately -2.00. The analytical derivative of the function is f'(x) = 3x^2+2x-3.

To estimate the derivative numerically, we can generate a table of ordered values for the function f(x), its analytical derivative f'(x), and the numerical estimate of the derivative. The first-order, centered method approximates the derivative as the difference in function values between x+Ax and x-Ax, divided by twice the step size.

In this case, we choose a step size of Ax=0.1. We calculate the function values at x=-1+Ax and x=-1-Ax, and find the difference. Dividing this difference by twice the step size gives us the numerical estimate of the derivative at x=-1. Using this method, the numerical estimate is approximately -2.00, which matches the analytical result.

In conclusion, the numerical estimate of the derivative of the function f(x) = x^3 + x^2-3x-1 at x=-1, obtained using the first-order, centered method with Ax=0.1, is approximately -2.00. This estimate is in close agreement with the analytical derivative f'(x) = 3x^2+2x-3, indicating a reasonable approximation of the true derivative value.

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When using the first-order, centered method with a step size of Ax=0.1, the numerical estimate of the derivative of the function f(x) = x^3 + x^2-3x-1 at x=-1 is approximately -2.00.

The analytical derivative of the function is f'(x) = 3x^2+2x-3.To estimate the derivative numerically, we can generate a table of ordered values for the function f(x), its analytical derivative f'(x), and the numerical estimate of the derivative. The first-order, centered method approximates the derivative as the difference in function values between x+Ax and x-Ax, divided by twice the step size.

In this case, we choose a step size of Ax=0.1. We calculate the function values at x=-1+Ax and x=-1-Ax, and find the difference. Dividing this difference by twice the step size gives us the numerical estimate of the derivative at x=-1. Using this method, the numerical estimate is approximately -2.00, which matches the analytical result.

The numerical estimate of the derivative of the function f(x) = x^3 + x^2-3x-1 at x=-1, obtained using the first-order, centered method with Ax=0.1, is approximately -2.00. This estimate is in close agreement with the analytical derivative f'(x) = 3x^2+2x-3, indicating a reasonable approximation of the true derivative value.

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The values of sin2x, cos2x and tan2x is 120/169, -119/169 and -120/119 respectively.

What is cosine?

In mathematics, the cos meaning refers to the cosine function, which is taught in the most crucial geometry lesson, trigonometry. One of the three primary uses of trigonometry is the cosine function. Sine, cosine, and tangent are the three trigonometric ratios that are also referred to as these three functions.

The cosine of an angle is defined by the cos meaning in trigonometry. This angle, which is an acute angle in a right-angled triangle, is taken into account when determining the ratios. As a result, the ratio between an angle's adjacent side and the triangle's hypotenuse is the cosine of an angle in a right triangle.

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To Sketch a graph of each of the four angles of 30°, 150°, 210°, 330°, one can follow the example that is given in the image.

In the mathematics, a sketch is known to be a given category  that tells what a thing is all about.

Note that in sketching, one need to take not of the key points and angles and as such, To Sketch a graph of each of the four angles of 30°, 150°, 210°, 330°, one can follow the example that is given in the image.

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Answer:

10% out of 100%.

Or 4/40=1/10 which is 10%.

Shen has ridden her bike for 10% of the course

The dimensions that will minimize the cost is

h= 2.82876 and r = 1.06078

Given That, C₁ = $10 and C₂= $10 and C₃ = $15

lets multiply the top and bottom, we get,

C₁ × C₂ = $10 ×$ 20 = $ 30

The total cost is,

C = (2πr²) C₁ + (2πrh)C₂

Here,  r is base radius and h is the side length.

The volume is given by and the volume to 20 m³

∴ V = πrh² ⇒ πr²h = 20

So, h = 20/πr²

Now, the problem can be  stated as

minimum h, r C(h, r) restricted to V(h, r) = V₀

Using language multiplier it reads,

L(h ,r,λ) = C(h, r) + λ [ V(h ,r) - V₀]

Solving for h, r, λ, we get,

h = ∛(2 C₁/C₂)² V₀ /π , r = ∛ (C₂/C₁) (v₀/2π)

λ = -2 ∛2πC₁C₂² /V₀

or, h= 2.82876 , r= 1.06078 with associated cost C= 424.214

We know that is a minimum because,

(C₀ V) = 2 ( C₁πr³ + C₂V₀) /r

d²/dr² (C₀V) (r) = 4 (C₁πr³+ C₂V₀)/ r³

and for the found solution has the value

d²/dr² (C₀V) (r) = 240 π > 0

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The mean is 58.319 m/h and the standard deviation is 11.665 m/h of the vehicle speed if 5% of all vehicles travel less than 39.13 m/h and 10% travel more than 73.25 m/h.

The mean and standard deviation of the vehicle speed can be calculated by using the formula for z-score.

The z-score of measure X can be given as;

Z = X - μ / σ

In this case, 39.13 m/h is the 5th percentile; therefore when X = 39.13, Z has a p-value of 0.05, hence Z = -1.645

Z = X - μ / σ

-1.645 = (39.13 - μ) / σ

39.13 - μ = -1.645σ

μ = 39.13 + 1.645σ

Additionally, 73.25 m/h is the 90th percentile (100 - 10 = 90), therefore when X = 73.25, Z has a p-value of 0.9, hence Z = 1.28

1.28 = (73.25 - μ) / σ

73.25 - μ = 1.28σ

μ = 73.25 - 1.28σ

We can find the standard deviation by equalling both equations as follows;

39.13 + 1.645σ = 73.25 - 1.28σ

1.645σ + 1.28σ = 73.25 - 39.13

2.925σ = 34.12

σ = 34.12/2.925 = 11.665 m/h

Now the mean can be calculated as follows;

μ = 73.25 - 1.28σ

μ = 73.25 - 1.28(11.665)

μ = 58.319 m/h

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Answer:

i can't understand your question is

Answer:

I believe the answer would be 8 if not try 27

A statistical test with a p-value (p) of 0.01 means that there is a 1% probability of obtaining the observed results, or more extreme results, purely by chance if the null hypothesis is true.

The null hypothesis typically states that there is no significant relationship or effect between the variables being studied. In other words, the p-value helps us determine the likelihood of observing the data we have if the null hypothesis holds true.

A p-value of 0.01 is considered statistically significant, as it is less than the commonly used threshold of 0.05. This means that there is strong evidence against the null hypothesis, and we might reject it in favor of the alternative hypothesis. The alternative hypothesis proposes that there is a significant relationship or effect between the variables. It's important to note that a low p-value doesn't prove causation, but it does suggest a significant association between the variables that warrants further investigation.

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Answer:

30cm^2

Step-by-step explanation:

area of triangle- 1/2xAxB

1/2(5x12)

0.5x60=30

Answer:

Given

Distribute:

It should be D but it is missing g at the end, must be typo

Answer:

−2(7+6g) = -14 - 12g

________________

Answer:

x =7

Step-by-step explanation:

\( {f}^{ - 1} (36) = 7 \\ \\ \implies \: 36 = {f} (7) \\ \\ f(x) = 36.... (given) \\ \\ f(7) = f(x) \implies \: x = 7\)

Downsizing refers to the process of reducing the size and workforce of a company to cut costs, increase efficiency, or adapt to changing market conditions. It involves eliminating positions, reducing staff numbers, or even closing down certain business units or branches.

Downsizing can occur for various reasons, such as financial difficulties, mergers and acquisitions, technological advancements, or strategic reorganization. Companies often assess their operational costs and decide to downsize to improve their financial performance.

During the downsizing process, companies may calculate the potential cost savings by considering factors such as salaries, benefits, severance packages, and operational expenses. For example, if a company decides to eliminate 100 positions with an average salary of $50,000 per year, it could result in annual savings of $5 million.

While downsizing can help companies achieve short-term cost reductions, it often has significant implications for the affected employees, including layoffs, reduced morale, and increased workload for remaining staff. It is crucial for organizations to handle the downsizing process with sensitivity and transparency, providing support to affected employees and communicating the rationale behind the decisions.

It is important to note that downsizing should not be seen as a long-term solution, but rather as a strategic measure to address specific challenges. Companies should also explore alternatives to downsizing, such as retraining and redeploying employees, implementing productivity improvements, or seeking new business opportunities, to ensure sustainable growth and success in the long run.

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