At her doll, Doris sold party trays containing meat and cheese Slices. Each party tray contained the same number of meat slices, and each contained the same number of cheese slices. She wrote the total number of meat slices and cheese sllces sold as 24 + 38. Which expression represents the number of party trays and slices of meat and cheese Doris sold?

Answer:

she gets home at 2:30

Step-by-step explanation:

Answer:

Nov 1st: 2500 boxes

Dec 1st: 15% fewer boxes which is 2500 x (1- \(\frac{15}{100}\) ) = 2125

On January 1st: 20% more boxes which is 2125 x (1+ \(\frac{20}{100}\) ) = 2550 is the number of boxes

Step-by-step explanation:

Answer:

40$

Step-by-step explanation:

170$-130$=40$

The correct answer is (a) The value of A cannot be determined without additional information.(d) X and Y are not independent because the joint density function does not factorize into the product of the marginal density functions.(e) Pr(X + Y ≤ 2) = 0, as the region where X + Y ≤ 2 has no probability mass according to the given joint density function.

(a) To find the value of the unknown A, we need to integrate the joint density function over the entire range to obtain a total probability of 1. In other words, we integrate FXY(x, y) over the entire xy-plane. Since FXY(x, y) is a step function, it takes the value of 1 over the region where the joint density function is non-zero. From the given joint density function, we have:

FXY(x, y) = A[u(x) - u(x - 2)][u(y) - u(y - 4)]

Integrating this over the entire xy-plane, we have:

∫∫FXY(x, y) dxdy = 1

∫∫A[u(x) - u(x - 2)][u(y) - u(y - 4)] dxdy = 1

Integrating over the appropriate limits, we find:

A ∫[0, ∞] ∫[0, ∞] [u(x) - u(x - 2)][u(y) - u(y - 4)] dxdy = 1

Solving this equation will give us the value of A.

(b) To determine the joint cumulative distribution function (CDF) FXY(x, y) of X and Y, we need to integrate the joint density function over appropriate ranges. Since the joint density function has step functions, the cumulative distribution function will also be a step function.

FXY(x, y) = ∫∫FXY(u, v) dudv

To find the limits of integration, we consider the regions where the step functions are non-zero. In this case, the non-zero regions are:

0 ≤ x ≤ 2, 0 ≤ y ≤ 4

In these regions, we have:

FXY(x, y) = A∫∫[u(x) - u(x - 2)][u(y) - u(y - 4)] dxdy

(c) To determine the mean values of X and Y and E[XY], we need to calculate the respective expectations using the joint density function.

Mean value of X (μX) = ∫∫x * fXY(x, y) dxdy

Mean value of Y (μY) = ∫∫y * fXY(x, y) dxdy

E[XY] = ∫∫xy * fXY(x, y) dxdy

Substituting the given joint density function fXY(x, y), we can calculate these expectations over appropriate ranges.

(d) To determine if X and Y are independent, we need to compare the joint density function with the product of the marginal density functions. If they are equal, X and Y are independent; otherwise, they are dependent.

(fXY(x, y) = fX(x) * fY(y)) for all values of x and y

Compare the joint density function fXY(x, y) with the product of the marginal density functions fX(x) and fY(y) to determine independence.

(e) To find Pr(X + Y ≤ 2), we need to integrate the joint density function over the region where X + Y ≤ 2. In other words:

Pr(X + Y ≤ 2) = ∫∫[A(u(x) - u(x - 2))(u(y) - u(y - 4))] dx dy

Evaluate this integral over the appropriate limits to find the probability Pr(X + Y ≤ 2).

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Answer:

the answer is 60 not 42 goodluck

Answer:

60

Step-by-step explanation:

i got it right on my test hope this helps sorry if it didn't

Answer:

Step-by-step explanation:

radius of semicircle =4.7/2 m

area of semicircle=1/2 πr²

=1/2 ×π×(4.7)²

≈8.67 m²

fertiliser=8.67×20

=173.4

≈173 gm

Domain

\(-\infty \: < x < \infty\)

Range

\(f\left(x\right)\ge \:-7\:\)

Answer:

B) 50%

Step-by-step explanation:

It says or so it includes both as a probability, since drawing one of the four suits is 25% adding them together would increase the probability for two either two suits to 50%

If a customer rolls the dice and every Thursday rents a second movie for 30 consecutive weeks. The approximate probability will be 0.14

Value anticipated = 0.47

0.15 is the standard deviation.

Sample size: 30 people

Mean = Expected Value * Sample Size

Mean = 0.47 * 30 = 14.1

The sample's standard deviation is equal to /n.

0.15 = σ/√30

σ = 0.8216

P(x > 15) :

Z is equal to (x-mean)/(standard deviation).

Z = (15 - 14.1) divide by 0.8216 = 1.095

P(Z > 1.095) = 0.1367

P(Z > 1.095) = 0.14

Probability means measuring the probability of an event, dividing the desirable number of outcomes by the total number of possible outcomes using a probability formula.

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Answer:

x \(\geq\) 11

Step-by-step explanation:

\(8\left(x+1\right)-7x\)

\(8x+8-7x\)

\(x+8\)

Then..

\(x+8\ge \:-3\)

Subtract 8 from both sides

\(x+8-8\ge \:-3-8\)

Then, you got your awnser.

\(x\ge \:-11\)

The problem with solving 1110 - 1110 using 2's complement in 7-bit data representation is that it results in an overflow, and to overcome this, either increase the number of bits or use a larger data type for representation.

We are subtracting 1110 from 1110 using 2's complement and using 7-bit data representation. Let's go through the steps:

Step 1: Convert 1110 to its 2's complement representation in 7 bits:

  - In 7 bits, the leftmost bit is the sign bit.

  - Since the leftmost bit of 1110 is 1 (indicating a negative number), we can simply represent it as it is: 1110.

Step 2: Perform the subtraction using 2's complement:

  1  1  1  0

- 1  1  1  0

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

  0 0 0 0

The result of the subtraction is 0000. However, this result is problematic because it is not within the range that can be represented with 7 bits using 2's complement.

To overcome this problem and prevent overflow, we can take the following steps:

1. Increase the number of bits: Increase the number of bits used for representing the numbers. Using more bits allows for a larger range of representable numbers and reduces the chance of overflow. If possible, use more bits for data representation.

2. Use a larger data type: If using a fixed number of bits is a requirement, consider using a larger data type, such as a larger integer type, that can accommodate the expected range of values without overflow.

3. Check for overflow conditions: Before performing arithmetic operations, check for potential overflow conditions. For example, when subtracting two negative numbers or adding two positive numbers, the result should have a different sign. If the signs of the operands are the same and the result has the opposite sign, it indicates overflow.

4. Handle overflow cases: If overflow occurs, take appropriate actions based on the specific requirements of your application. This could involve truncating or discarding the most significant bits of the result or applying additional logic to handle the overflow condition appropriately.

By considering these suggestions and adjusting the number of bits or data type used for data representation, you can overcome the problem of overflow when performing arithmetic operations using 2's complement.

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Answer:

1/3

Step-by-step explanation:

To get no solution, you want to get rid of x and leave an incorrect equation.

In this case, we will use 1/3x.

1/3x + 2 = 1/3x - 3

We subtract 1/3x on both sides. This will cause the 1/3x's to cancel out.

1/3x - 1/3x + 2 = 1/3x - 1/3x - 3

2 ≠ -3

As we know, 2 is not 3. Therefore, there is no solution if 1/3x is used.

Answer:

Step-by-step explanation:

I'm not sure what the next now rule but I can give you the function.

y = 5 * 2^x

So the table is constructed by letting 0<=x<=8

For example if x is 3

y = 5 * 2^3

y = 5 * 8 = 40

When x = 3 does y come to 40? According to the chart it does.

Try another one

y = 5 * 2*6

y = 5 * 64

y = 320   Is that what the chart records? Yes it does.

If what the text now rule means is that from the current value of y, you can get the next value, then the formula would be

y_n = 2 * y_(n - 1)

y_7 = 2 * y_6

y_7 = 2 * 320

y_7 = 640

Camille will have walked for 5 days when she and Hiroki have walked the same number of miles.Let's call the number of days Camille walks "x". After the first day, she walks 3 miles each day, so her total distance after x days is 7 + 3(x - 1) miles.

Hiroki starts walking later, but he walks 5 miles each day. To make up for the two days he missed, he walks 5 miles each day for x - 2 days. His total distance after x days is 5(x - 2) miles.

For Camille and Hiroki to have walked the same number of miles, their distances must be equal:

7 + 3(x - 1) = 5(x - 2)

Expanding the right side:

7 + 3x - 3 = 5x - 10

Combining like terms:

3x + 7 = 5x - 3

Subtracting 3x from both sides:

7 = 2x - 3

Adding 3 to both sides:

10 = 2x

Dividing both sides by 2:

5 = x

So, Camille will have walked for 5 days when she and Hiroki have walked the same number of miles.

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Answer:

4 miss days per year

Step-by-step explanation:

Let the previous employees miss days be = x

As given, miss days now are 75% less than previous

x - 75%x = 1/365

0.25x = 1/365

x = 1 / (365 x 0.25)

x = 4/365

So, average back then could have been 4 days per 365 days

It would take 5040 cubic inches of water to completely fill the aquarium.

We know that the formula for the volume of cuboid :

V = length × width × height

Let us assume that l represents the length of the aquarium, w represent the width and h represents the height.

Here, l = 20 inches

w = 14 inches

and h = 18 inches

Using the formula for the volume of cuboid, the volume of aquarium would be,

V = l × w × h

V = 20 × 14 × 18

V = 5040 cu.in.

Therefore, it would take 5040 cu.in. of water.

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In summary, the equilibrium solutions of the given system of differential equations are:

1. \(R = 0\) and any value of \(W\)

2. \(W = 0\) and any value of \(R\) satisfying the equation \(0.08 - 0.00004R = 0\) (which gives \(R = 2000\))To find the equilibrium solutions of the given system of differential equations, we need to find the values of R and W for which both derivatives are equal to zero.

Let's set \(\frac{dR}{dt} = 0\) and \(\frac{dW}{dt} = 0\):

1. Equilibrium for \(\frac{dR}{dt} = 0\):

\[0.08R(1-0.0005R)-0.003RW = 0\]

Simplifying the equation:

\[0.08R - 0.00004R^2 - 0.003RW = 0\]

Factoring out R:

\[R(0.08 - 0.00004R - 0.003W) = 0\]

This equation gives us two possibilities for equilibrium:

a) \(R = 0\)

b) \(0.08 - 0.00004R - 0.003W = 0\)

2. Equilibrium for \(\frac{dW}{dt} = 0\):

\[-0.01W + 0.00001RW = 0\]

Factoring out W:

\[W(-0.01 + 0.00001R) = 0\]

This equation gives us two possibilities for equilibrium:

a) \(W = 0\)

b) \(-0.01 + 0.00001R = 0\)

Now let's substitute the values from the given scenario (200 rabbits and 20 wolves) into the equilibrium equations to check if they satisfy the conditions:

1. For \(R = 200\) and \(W = 20\):

a) From the equilibrium equation for \(\frac{dR}{dt}\): \(0.08 - 0.00004(200) - 0.003(20) = 0.08 - 0.08 - 0.06 = -0.06 \neq 0\)

b) From the equilibrium equation for \(\frac{dW}{dt}\): \(-0.01 + 0.00001(200) = -0.01 + 0.002 = -0.008 \neq 0\)

Therefore, the given scenario of 200 rabbits and 20 wolves does not satisfy the conditions for equilibrium.

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Independent and dependent variables are interdependent.

Dependent Variable: The term "dependent variable" refers to the variable that is being measured or tested in an experiment.

The results of the participants' tests, for instance, would be the dependent variable in a study looking at how tutoring affects test scores because that is what is being measured.

If you keep in mind that the dependent variable depends on the independent variable, finding it can be simpler.

This isn't the same as an experiment's independent variable, which is a variable that can stand on its own. The dependent variable (test results), however, may alter depending on the independent variable (tutoring).

The unrelated factor

Because the experimenters are allowed to change the independent variable as necessary, it is called a "independent" variable.

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The given statement , police departments continue to control the sole statistical data available to measure homicide rates in the united states is false.

Domestic disagreements, interpersonal violence, violent fights over land resources, intergang violence over turf or control, and predatory violence and murders by armed organizations are all examples of intentional homicides.

Intentional homicide does not cover all intentional killing; the distinction is usually in the manner in which the killing is carried out.

Homicide is typically committed by individuals or small groups, but killing in armed conflict is typically performed by highly cohesive organisations of up to several hundred members and is thus typically omitted.

The 2020 murder/homicide rate in the United States was 6.52,

a 28.64% rise over 2019.

The murder/homicide rate in the United States in 2019 was 5.07,

up 1.19% from 2018.

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Answer:

the first one is correct

2) 0.805

3)0.25675

4)234.5

5)190.5

6)1.884666667

7)59.375

Step-by-step explanation:

Answer:

2) 0.805

3)0.25675

4)234.5

5)190.5

6)1.884666667

7)59.375

Step-by-step explanation:

Answer: y = -1/3x -1

Step-by-step explanation:

The slope is -1/3, and it crosses the y axis at (0,-1)

Answer:

-24

Step-by-step explanation:

The coefficient is the number in front of the variables (letters).

Answer:

○ \(\displaystyle 12,9\)

Step-by-step explanation:

Use the Law of Sines to find the length of the second edge:

Solving for Angles

\(\displaystyle \frac{sin\angle{C}}{c} = \frac{sin\angle{B}}{b} = \frac{sin\angle{A}}{a}\)

Use \(\displaystyle sin^{-1}\)towards the end or you will throw your result off!

Solving for Edges

\(\displaystyle \frac{c}{sin\angle{C}} = \frac{b}{sin\angle{B}} = \frac{a}{sin\angle{A}}\)

Let us get to wourk:

\(\displaystyle \frac{a}{sin\:40} = \frac{10}{sin\:30} \hookrightarrow \frac{10sin\:40}{sin\:30} = x; 12,855752194... \\ \\ \boxed{12,9 \approx x}\)

I am joyous to assist you at any time.

A regression model allows us to examine how the probability distribution of a dependent variable, Y, might be related to one or more independent variables (collectively called X). Therefore, the correct answer is (a) regression model.

A regression model is a statistical tool used to model the relationship between a dependent variable (often denoted as Y) and one or more independent variables (often denoted as X). It can help us understand how changes in the independent variables affect the values of the dependent variable, and can be used to make predictions or estimate values of the dependent variable based on specific values of the independent variables.

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Answer:

67

Step-by-step explanation:

Answer:

35

Step-by-step explanation:

x + 55 = 90 (Right angle triangle)

x = 90 - 55

x = 35

Please mark as brainliest.

Psychology is the scientific study of mind and behavior.

innahbee (. ❛ ᴗ ❛.)

The number of samples that were greater than 98.5 degrees and less than 98.7 degrees is 25.

We have,

3.

The number of samples that were greater than 98.5 degrees and less than 98.7 degrees.

= 25

We add up all the dots above the numbers between 98.5 and 98.7.

We will not include the dots above 98.5 and 98.7.

4.

The dot plot of the sample mean body temperature for 100 different random samples of size 10 from a population with a mean temperature of 98.6 degrees shows that the majority of the sample means are close to 98.6, and there are very few samples means that exceed 98.6, then it would be surprising to obtain a sample mean of 98.8 or greater from a different random sample.

Thus,

The number of samples that were greater than 98.5 degrees and less than 98.7 degrees is 25.

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ANSWER

EXPLANATION

We want to write the ratio of hits to innings.

This means that we want to write the numbers in the form:

There were 6 hits in 9 innings. Hence, the ratio of hits to innings (in simplest form) is:

That is the answer.

Answer: 800 miles

Step-by-step explanation:

Let the actual distance between City C and City​ D be represented by x.

The information given in the question can be formed into an equation as:

1.8 feet / 2.88 feet = 500 miles / x

Cross multiply

1.8 × x = 500 × 2.88

1.8x = 1440

x = 1440/1.8

x = 800

Therefore, the actual distance between City C and City​ D is 800 miles.