Dr. Cox just started an experiment. He will collect data for 4 days. How many hours is this

Answer:

Step-by-step explanation:

Answer:

We have the proportion: 8/10 = 100/y

We can solve for y by cross-multiplying.

That is, 8y = 100 * 10 Simplifying the right-hand side, 8y = 1000

Dividing both sides by 8 to solve for y, y = 125

Hence, the value of y is 125.

Finally, we have the expression: y = √80We can simplify this expression by factoring 80 into its prime factors:80 = 2 * 2 * 2 * 2 * 5

Taking the square root of 2 * 2 * 2 * 2, we have:√(2 * 2 * 2 * 2) = 2 * 2 = 4

Therefore, y = 4√5The value of y is 4√5.

Step-by-step explanation:

Hope this helps!! Have a good day/night!!

Answer:

I think the answer is B

Step-by-step explanation:

The inequality that represents "all real number's 'x' greater than 2" is \(x > 2\) and the inequality that represents "6 more than a number 'k' is less than or equal to 12" is \(6 + k \leq 12\).

a)

Given :

All real number's 'x' greater than 2

So, the inequality that represents the given verbal expression is given below:

\(x > 2\)

where 'x' is the real number.

b)

Given :

6 more than a number 'k' is less than or equal to 12.

So, the inequality that represents the given verbal expression is given below:

\(6 + k \leq 12\)

where 'k' is the given number.

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Answer:

1 1/6 liters of water

Two lines are said to be perpendicular in nature when the angle between them is 90° or the product of their slope is negative 1.

We are given that we need to find the equation of the line which passes through the point (-1, 2) and is perpendicular to the line 3x + 2y = 7.

Let us first find the slope of the given line:

3x + 2y = 7

or

2y = -3x + 7

y = (-3/2)x + 7/2

We can write this in slope-intercept form: y = mx + c where m is the slope and c is the y-intercept.

Hence, the slope of the given line is -3/2.

The line which is perpendicular to the given line has a slope which is the negative reciprocal of the slope of the given line.

Hence, the slope of the required line is 2/3.

Now, let us write the equation of the required line:

y - y1 = m(x - x1) where (x1, y1) is the given point (-1, 2) and m is the slope of the required line.

y - 2 = (2/3)(x - (-1))

y - 2 = (2/3)(x + 1)

Multiply by 3:

y - 2 = 2x + 2

y = 2x + 4

The required line passes through point (-1, 2) and is perpendicular to the line 3x + 2y = 7. Its equation is 2x - y + 4 = 0.

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Answer:

22.936kg

Step-by-step explanation:

IF 100 beads weigh 4.36kg

1 bead would weigh :

100 / 4.36 = 22.936kg

Sylva's utility function: U(x, y) = k * x * (2/5) * y, where x is the number of cartons of eggs and y is the number of cheese bags consumed.



Sylva's utility function can be represented as U(x, y) = k * x * (2/5) * y, where x is the number of cartons of eggs consumed and y is the number of cheese bags consumed. The ratio 2/5 represents the fact that for every five cartons of eggs, Sylva consumes two cheese bags. The constant k scales the utility function based on Sylva's preferences.

In this utility function, the more eggs and cheese Sylva consumes, the higher her utility. The coefficient 2/5 ensures that the utility gained from cheese bags is proportional to the number of eggs consumed. By multiplying x and y, we account for the quantity of both goods consumed. The constant k adjusts the overall level of utility according to Sylva's individual preferences.

It's important to note that the utility function provided is a simplified representation based on the given information. In reality, individual preferences and utility functions can be more complex and may depend on various factors such as taste, price, and individual satisfaction.

Therefore, Sylva's utility function: U(x, y) = k * x * (2/5) * y, where x is eggs and y is cheese.

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Answer:

x<-2

Step-by-step explanation:

17+4x<9

4x<-8

x<-2

The solution is:

Work/explanation:

Recall that the process for solving an inequality is the same as the process for solving an equation (a linear equation in one variable).

Make sure that all constants are on the right:

\(\bf{4x < 9-17}\)

\(\bf{4x < -8}\)

Divide each side by 4:

\(\bf{x < -2}\)

Answer:

b=119, and c=119

Step-by-step explanation:

this is because b+61 equal 180 degrees and b and c are congruent angles

Answer:

1 cup of brown sugar to 2 teaspoon of baking soda

Step-by-step explanation:

Given that 1.25cups of all-purpose flour, 110grams of butter, half cup of brown sugar and 1 teaspoon (tsp) of baking soda is needed to make 12 cookies. Therefore to make 24 cookies, double of this value would be needed.

Hence, 2.5 cups of flour, 220 grams of butter, 1 cup of brown sugar and 2 teaspoon of baking soda would be needed to make 24 cookies.

The ratio of brown sugar is to baking soda is to butter to make 24 cookies = 1 cup / 2 teaspoon = 1 cup of brown sugar to 2 teaspoon of baking soda

Answer:

do it yourself

Step-by-step explanation:

i ain't your slave

Answer: 88km is your answer

Step-by-step explanation: We just had this on a test

Answer:

The answer is b. ok ok ok ok

Answer:

I THINK U SHOLD DO 15.99,400 SQURE,AND 30HR WILL BE THE CHEAPEST WAY SO JUST PICK THE PRICE WITH 15.99

Step-by-step explanation:

BECAUSE IF  BUY THE SPECIAL PAINT YOU WILL NEED TO BUY 5 OF THEM PRICE WILL BE 135.00 PLUS TAXT AND THAT IS TOO MUCH.

IT WILL NOT ME THE PRIMER BECAUSE U NEED TO BUY 10 WHICH IS PRICED 90.00 PLUS TAXT.

ANSWER- IF HAS TO BE THE PAINT ONE BECAUSE IT COVERS 400SQ WHICH MEAN U HAVE TO BUY 5 OF THEM 16X5 IS 80 MAKE THE PRICE CHEAPER THEN ALL THE OTHERS :) SO YEAH.

Answer:

1-a) 78+x+16+x+24=180°

118+2x=180

2x=62

so x=31

Step-by-step explanation:

thats a

Answer:

1a) x = 31

1b) x = 12

2) angle A = 60 degrees

3) x = 40 degrees

Step-by-step explanation:

The answer should be obtuse. I'm not sure why it is saying it's incorrect but none of the other answers make sense.

Answer:

Step-by-step explanation:

soo then what is the question??

The probability that X is between 57 and 105 is 0.8914.

Given:

* X is normally distributed with mean=90 and standard deviation=12

* P(57 < X < 105)

Solution:

* Convert the given values to z-scores:

   * z = (X - μ) / σ

   * z = (57 - 90) / 12 = -2.50

   * z = (105 - 90) / 12 = 1.25

* Use the z-table to find the probability:

   * P(Z < -2.50) = 0.0062

   * P(Z < 1.25) = 0.8944

* Add the probabilities to find the total probability:

   * P(57 < X < 105) = 0.0062 + 0.8944 = 0.8914

Therefore, the probability that X is between 57 and 105 is 0.8914.

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Answer:

x  -2, -1, 0 1 2

y-4 0 4 8 12

Step-by-step explanation:

i think...

Answer:

X   Y

1     8

2     12

3     16

4     20

5     24

Step-by-step explanation:

I'm not seeing a table so I assume you need to creat one

A researcher will pose all of these related to sampling. So, the correct answer is all of the questions

The first question is related to the applicability of the findings of study which are typically beyond the data sources that are selected for study

The second question is related to the fact that sample of participants selected for the study reflects the diversity of the actual population to which extent

The third question relates to identifying the individuals which will be available for the study and it will consider different factors such as their experiences

The fourth question is not that much relevant as it as related with depth and the precision of the findings of the study

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With the help of the area formulae of rectangles and triangles and the concept of surface area, the surface area of the composite figure is equal to 276 square centimeters.

The surface area of the truncated prism is the sum of the areas of its six faces, which are combinations of the areas of rectangles and right triangles. Then, we proceed to determine the surface area:

A = (12 cm) · (4 cm) + 2 · (3 cm) · (4 cm) + 2 · (12 cm) · (3 cm) + 2 · 0.5 · (12 cm) · (5 cm) + (5 cm) · (4 cm) + (13 cm) · (4 cm)

A = 48 cm² + 24 cm² + 72 cm² + 60 cm² + 20 cm² + 52 cm²

A = 276 cm²

With the help of the area formulae of rectangles and triangles and the concept of surface area, the surface area of the composite figure is equal to 276 square centimeters.

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The remaining side is 16.9 and remaining angles are 83.1 and 34.9.

The cosine formula to find the side of the triangle is given by:

c = √[a² + b² – 2ab cos C] Where a,b and c are the sides of the triangle.

Given:

m∠B = 62°, a = 11, and c = 19

Now, b² = a² + c² - 2ac cos B.

b = √ a² + c² - 2ac cos B

b = √ 11² + 19² - 2x 11  x 19 cos 62

b= 16.9

Now. a/ sin A = b/ sin B= c/ sin C

So, <C = arc sin ( c sin B /b)

<C = arc sin ( 19 sin 62 /16.9)

<C = 83.1

and, <A = arc sin ( a sin B /b)

<A = arc sin ( 11 sin 62 /16.9)

<A = 34.9

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7.5cm2

5x3cm=15cm2 because of base x height/2 you would do

15cm2 divided by 2 since it is a triangle (a half of a square) which is 7.5cm2

Answer:

D.

Step-by-step explanation:

Area of a triangle is bh/2

So your base is 5 and your height is 3.

So you do 5*3 which is 15.

And lastly you do 15/2, which is 7.5. 7*2 is 14, and 8*2 is 16

So 7.5 times 2 is 15

For option A Y = 0, 3, 5; while for B Y(o) E [0,5]. The limit of Sdⁿ is Limited. See the definition of equilibrium solution below.

A solution to a DE whose derivative is zero everywhere is an equilibrium solution.

A horizontal line represents an equilibrium solution on a graph.

You can identify equilibrium solutions given a slope field by locating every place where a horizontal line fits into the slope field.

Note that The Equilibrium solutions when Y' = 0 is:

⇒ y (y-3) (y-5) = =

⇒ Y = 0, y = 3, y = 5

hence,

Y = 0,3,5

For section B:

Given the stated Direction field, we know that:

If y(0) ∈ (0,5), then \(\lim_{x \to \infty }\) y is 3

If y(0) ∈ (3,5), then \(\lim_{x \to \infty }\) y is 3

With regards to values existing beyond the intervals, the result is divergent.

Therefore,

For y (0) ∈ [0,5], limit of Sdⁿ is Limited.

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Full Question:

Consider The Direction Field Below For A Differential Equation Y'=Y(Y?3)(Y?5).

Use The Graph And Equation To Answer The Following Questions.

1) Find The Equilibrium Solutions For The Differential Equation. Answer (Separate By Commas): Y=

2. If The Initial Condition Is Y(0)=C, For What Values Of C Is Limit??Y(T) Finite? Answer (As An Interval): See attached for related Image.

Answer:

\(5x + 2y = - 11 - - - (a) \\ 3x + 2y = - 9 - - - (b) \\ (a) - (b) : \\ 2x + 0y = - 2 \\ x = - 1 \\ (3 \times - 1) + 2y = - 9 \\ - 3 + 2y = - 9 \\ 2y = - 6 \\ y = - 3 \\ { \boxed{x = - 1}} \\ { \boxed{y = - 3}}\)

Answer:

(- 1, - 3 )

Step-by-step explanation:

Given the 2 equations

5x + 2y = - 11 → (1)

3x + 2y = - 9 → (2)

Subtract (2) from (1) term by term to eliminate y

2x = - 2 ( divide both sides by - 2)

x = - 1

Substitute x = - 1 into either of the 2 equations and solve for y

Substituting into (1)

5(- 1) + 2y = - 11

- 5 + 2y = - 11 ( add 5 to both sides )

2y = - 6 ( divide both sides by 2 )

y = - 3

solution is (- 1, - 3 )

The growth rate of the sloth population when the population is made up of 275 individuals is 99 individuals per year.

To calculate the growth rate of the three-toed sloth population when there are 275 individuals, we will use the logistic growth model formula:

Growth rate = r * N * (1 - N/K)

where r is the maximum per capita growth rate (0.8 per year), N is the current population size (275 individuals), and K is the carrying capacity of the forest (500 individuals).

Growth rate = 0.8 * 275 * (1 - 275/500)
Growth rate = 0.8 * 275 * (1 - 0.55)
Growth rate = 0.8 * 275 * 0.45
Growth rate ≈ 99 individuals per year

So, the growth rate of the sloth population when the population is made up of 275 individuals is approximately 99 individuals per year.

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The probability of having exactly 8 phone calls between 2:00 pm and 2:10 pm at a computer software help desk, assuming a Poisson distribution with a rate of 3 calls per minute, is approximately 0.021. The probability of having at least 8 calls during that time period is approximately 0.056.

The Poisson distribution is commonly used to model the number of events that occur within a fixed interval of time or space, given the average rate of occurrence. In this case, we are given that the rate of phone calls to the help desk is 3 calls per minute during the afternoon. We need to calculate the probability of different scenarios based on this information.

To find the probability of exactly 8 phone calls between 2:00 pm and 2:10 pm, we can use the Poisson probability formula:

P(X = x) = (\(e^(-λ)\) * \(λ^x\)) / x!

Where λ is the average rate of occurrence (3 calls per minute), and x is the number of events we're interested in (8 calls). Plugging in these values, we get:

P(X = 8) = (\(e^(-3)\) * \(3^8\)) / 8!

Calculating this expression, we find that P(X = 8) is approximately 0.021.

To calculate the probability of at least 8 calls, we need to sum the probabilities of having 8, 9, 10, and so on, up to infinity. However, since calculating infinite terms is not feasible, we can use the complement rule: P(at least 8) = 1 - P(X < 8).

To find P(X < 8), we can sum the probabilities of having 0, 1, 2, 3, 4, 5, 6, and 7 calls. Using the same Poisson probability formula, we calculate:

P(X < 8) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6) + P(X = 7)

Summing these individual probabilities, we find that P(X < 8) is approximately 0.944. Therefore, P(at least 8) = 1 - 0.944 ≈ 0.056.

Finally, the probability of having exactly 8 phone calls between 2:00 pm and 2:10 pm is approximately 0.021, and the probability of having at least 8 calls during that time period is approximately 0.056, assuming a Poisson distribution with a rate of 3 calls per minute.

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The correct system of equations that can be graphed to find the solution(s) to 4x² = x²+ 7 is:

y = 3x² which represents the parabola that intersects the x-axis at (±√(7/3), 0).

y = 7, which represents the horizontal line that intersects the y-axis at y = 7.

The equation 4x²= x² + 7 can be rearranged into a quadratic equation by subtracting x² from both sides:

3x² = 7

To graph this equation, we can first solve for x by dividing both sides by 3:

x² = 7/3

x = ±√(7/3)

We can then plot the two points (±√(7/3), 0) on the x-axis, which represent the x-intercepts of the graph.

The system of equations that corresponds to the graph of this equation is:

y = 3x² which is a parabola that opens upward and passes through the point (0, 0).

y = 7, which is a horizontal line that intersects the y-axis at y = 7.

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Answer:

1/2 of the class

give brainliest if it helps

Answer:

Graph A proportional graph B not proportional graph C not proportional

Step-by-step explanation: