The answer choices are
A. 80
B. 65
C. 50
D. 100

Answer:

B my children

Step-by-step explanation:

Answer:

Step-by-step explanation:

37 - 5^5 = 12

ANSWER = 12*C

The equations that are equivalent are: 2 + x = 5, x + 1 = 4, x + (-4) = 7

These equations can be solved to find x = 3 and x = 11, respectively.

An equation is a mathematical statement that uses an equal sign (=) to show that two expressions are equal.

Equations are equivalent if they have the same solution or solutions. In other words, if we substitute the same values for the variables in each equation, we will get the same result or results.

In the given options, the equations that are equivalent are:

2 + x = 5 and x + 3 = 5, since they both simplify to x = 3.

x + 1 = 4 and x = 3, since they both simplify to x = 3.

x + (-4) = 7 and x = 11, since they both simplify to x = 11.

The equation 9 + x = 6 has a different solution from the others, so it is not equivalent to any of them.

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1. The variable is qualitative or quantitative is the variable is qualitative because it is an attribute characteristic (option d). 2. The quantitative variable is discrete or continuous is the variable is discrete because it is countable (option d).

The variable "Hair color" is qualitative because it represents an attribute characteristic rather than a numerical measure. It refers to the different categories or qualities of hair color, such as blonde, brown, black, or red. It is not based on a numerical scale or measurement. Therefore, the correct answer is D) The variable is qualitative because it is an attribute characteristic.

The variable "Number of members present at a meeting" is discrete because it is countable and takes on distinct, separate values. It cannot take on any value between the integers, and there are no fractions or decimals involved. The number of members present can only be whole numbers, such as 0, 1, 2, 3, and so on. Therefore, the correct answer is D) The variable is discrete because it is countable.

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Answer: 145

Step-by-step explanation: I say this because it has 14. 4 then

The percentage of the data X = [2 4 6 8 10 12 14 16] lie between 4 and 8 hours about 50%.

A boxplot is a graphical representation of the data in a set, and it can be used to quickly identify patterns in a data set. In this example, we have a set of numbers X = [2, 4, 6, 8, 10, 12, 14, 16]. A boxplot of this data set would show a box that contains the middle 50% of the data and the whiskers that extend out to the maximum and minimum values.

From the boxplot, we cannot determine what percentage of the data lie between 4 and 8 hours. However, we can estimate that approximately 25% of the data lie between 4 and 8 hours, as this is a quarter of the middle 50% of the data.

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The maximum number of people who can stand in each side of the boat is equal to the buoyant force divided by the average mass of a person multiplied by the acceleration due to gravity.

The maximum number of people who can stand in each side of a boat can be determined using Archimedes' Principle. This principle states that the buoyant force on an object is equal to the weight of the fluid it displaces. In the case of a boat, the buoyant force is equal to the weight of the water it displaces.

Using this principle, the maximum number of people who can stand in each side of a boat can be calculated using the equation:

F_B = m_p * g

Where F_B is the buoyant force, m_p is the total mass of all the people standing in the boat, and g is the acceleration due to gravity.

To determine the maximum number of people, we must first calculate the mass of the boat, m_b. We can do this by multiplying the volume of the boat (V) by the density of the material the boat is made of (ρ).

m_b = V * ρ

Next, we can calculate the total mass of all the people standing in the boat, m_p. This can be calculated by multiplying the total number of people (n) by the average mass of a person (m).

m_p = n * m

Finally, we can calculate the maximum number of people who can stand in each side of the boat by rearranging the equation for F_B and solving for n.

n = (F_B) / (m * g)

Therefore, the maximum number of people who can stand in each side of the boat is equal to the buoyant force divided by the average mass of a person multiplied by the acceleration due to gravity.

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Answer:

a,b

Step-by-step explanation:

Answer:

root(7/2) and root (-7/2) are the roots then (x-root(7/2))(x-root(-7/2))= some quadratic polynomial then divide f(x) by this quadratic polynomial to get the other two roots

Step-by-step explanation:THE QUESTION IS HARD

On solving the provided question we can say that the equation that represents proportionality, is = > y = 7.8x

A mathematical equation is a formula that joins two statements and uses the equal symbol (=) to indicate equality. A mathematical statement that establishes the equality of two mathematical expressions is known as an equation in algebra. For instance, in the equation 3x + 5 = 14, the equal sign places the variables 3x + 5 and 14 apart. The relationship between the two sentences on either side of a letter is described by a mathematical formula. Often, there is only one variable, which also serves as the symbol. for instance, 2x – 4 = 2.

the equation that represents proportionality,

is = > y = 7.8x

because the standard form of  proportional relationship is => y = kx ,

where k is constant.

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False. A correlation coefficient of -0.5 does not signify a stronger linear relationship than a correlation coefficient of 0.2.

The correlation coefficient ranges from -1 to +1, where a value of -1 indicates a perfect negative linear relationship, +1 indicates a perfect positive linear relationship, and 0 indicates no linear relationship. Therefore, the magnitude of the correlation coefficient determines the strength of the linear relationship, regardless of the sign. In this case, a correlation coefficient of -0.5 indicates a moderate negative linear relationship, while a correlation coefficient of 0.2 signifies a weak positive linear relationship.

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Answer:

7

Step-by-step explanation:

It is 7:

31 - 7 = 24

15 - 7 = 8

8/24 = 1/3 = 33%

It is not 12:

31 - 12 = 19

15 - 12 = 3

3/19 = 15%

It is not 6:

31 - 6 = 25

15 - 6 = 9

9/25 = 36%

It is not 9:

31  - 9 = 22

15 - 9 = 7

7/22 = 31%

It is not 11:

31 - 11 = 20

15 - 11 = 4

4/20 = 20%

I subtracted the option from 31 (the new total of marbles) and from 15 (the new total of blue marbles). Then, I divided the new total by the new total of the blue marbles. I converted the decimal into a percentage. If the percentage was not 33%, then it was not the answer.

Answer:

x =  ± \(\frac{4}{3}\)

Step-by-step explanation:

9x² − 16 = 0

9x² = 16

x² = \(\frac{16}{9}\)

x = ± √\(\frac{16}{9}\)

x =  ± \(\frac{4}{3}\)

So, the answer is:  x = \(\frac{4}{3}\) , - \(\frac{4}{3}\)

Answer:

Per month salary = $3,750

Step-by-step explanation:

Given:

Annual pay = $45,000

Find:

Per month salary

Computation:

Number of month in a year = 12

Per month salary = Annual pay / Number of month in a year

Per month salary = $45,000 / 12

Per month salary = $3,750

Answer:16 and 24

Step-by-step explanation:

Answer:

A, 12ft, 16ft, 20ft.

Step-by-step explanation:

3,4,5 Triangles are right triangles, Answer A on the Paper says 12:16:20 which is proportinate to said ratio, hence the answer is A

x = -2 and y = -10 is the solution of the equations y = 8x +6 and 10x - 5y = 30.

What is Substitution method to solve equations?

The method of substitution involves three steps: Solve one equation for one of the variables. Substitute (plug-in) this expression into the other equation and solve. Resubstitute the value into the original equation to find the corresponding variable. he substitution method is the algebraic method to solve simultaneous linear equations.

Given Equations :

y = 8x +6

10x - 5y = 30

A) Solve equation [1] for the variable  y

    [1]    y = 8x + 6

B)  Plug this in for variable  y  in equation [2]

  [2]    -5•(8x+6) + 10x = 30

  [2]     - 30x = 60

C)  Solve equation [2] for the variable  x

  [2]    30x = - 60

  [2]    x = - 2

D)  By now we know this much :

   y = 8x+6

   x = -2

E)  Use the  x  value to solve for  y      y = 8(-2)+6 = -10

Solution : {y,x} = {-10,-2}

Hence , x = -2 and y = -10 is the solution of the equations y = 8x +6 and 10x - 5y = 30.

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Answer:   p = 9 - 0.5s

Optionally you can replace 0.5 with the fraction 1/2

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

Explanation:

s = number of slices

0.5s = total width of all of those slices mentioned

9-0.5s = amount left over.

For example, if he eats s = 4 slices then he has eaten 0.5s = 0.5*4 = 2 inches of bread, and there are 9-2 = 7 inches left.

Notice how 9-0.5s=9-0.5*4 = 9-2 = 7.

The equation p = 9 - 0.5s is not an inverse variation because it's not in the form p = k/s, where k is some constant.

Answer:

Step-by-step explanation:

i can not find the answer because i need at least a picture of it.:{

The quotient of of x³ + 1 divided by x² - x + 1 is x + 1

Given,

The polynomial function; x³ + 1 and x² - x + 1

We have to find the quotient of x³ + 1 divided by x² - x + 1

Polynomial function;-

In an equation such as the quadratic equation, cubic equation, etc., a polynomial function is a function that only uses non-negative integer powers or only positive integer exponents of a variable. For instance, the polynomial 2x+5 has an exponent of 1.

Here,

Divide x³ + 1  by x² - x + 1

x² - x + 1 ) x³ + 1        (x + 1 ⇒ Quotient

               x³ - x² + x

             0 + 1 + x² - x

            0 + 1 + x² - x

                          0   ⇒ Remainder

That is,

The quotient of of x³ + 1 divided by x² - x + 1 is x + 1

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Answer:

8/14

Step-by-step explanation:

there are 5 odd numbers and 3 numbers are coloured red

Answer:

279.987

this is da answer

Step-by-step explanation:

There are 280.035 lbs in 127 kilograms. The answer is obtained by applying the unit conversion.

What is unit conversion?

A unit conversion is used to express the same property in a different unit of measurement. For instance, you could use minutes instead of hours to represent time or feet instead of miles to indicate distance. It commonly occurs when measurements are provided in one system of units, such as feet, but are required in a different system, such as chains.

Now,

we have been given 127 kilograms which are to be converted into pounds and to be represented in lbs.

We know that 1 kilogram = 2.205 lbs (approx)

Therefore,

⇒127 kilograms = 127 * 2.205

⇒127 kilograms = 280.035 lbs

Hence,

          There are 280.035 lbs in 127 kilograms.

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Example of a unit vector that is orthogonal to the Cartesian vector 3î + ġ + 2Â: (-2î + 0ĵ + 3Â)/√(13)

a)The Mean Value: (x) = ∫xP(x)dx

b)The variance o2 = ∫\((x-(x))^2\)P(x)dx

c) The standard deviation of the variable x. σ = sqrt(o2)

To find an example of a unit vector orthogonal to the Cartesian vector 3î + ĵ + 2k, we'll use the following steps:
1. Choose an arbitrary vector, such as (a, b, c).
2. Calculate the dot product of this vector with 3î + ĵ + 2k (i.e., 3a + b + 2c).
3. Set the dot product equal to zero, as orthogonal vectors have a dot product of zero.
4. Solve for one of the variables (a, b, or c) in terms of the others and select suitable values to create a new vector.
5. Normalize the new vector to get the unit vector.

Now, let's find the definitions for a) mean value, b) variance, and c) standard deviation for a normalized probability density function P(x):
a) The mean value (x) is defined as the expectation value of the variable x, which can be written as:
(x) = ∫xP(x)dx over the interval [x, x+dx]

b) The variance, denoted as σ², measures the dispersion of the variable x from its mean value and is defined as:
σ² = ((x – (x))²) = ∫(x - (x))²P(x)dx over the interval [x, x+dx]

c) The standard deviation, denoted as σ, is the square root of the variance and represents the average distance of the variable x from its mean value:
σ = √σ²

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Answer:

Each small bag cost $8.5

Step-by-step explanation:

25-4=21

239.75-61.25=178.5

178.5/21=8.5

Answer:

It is complex and and i think dependent clause

Step-by-step explanation:

Answer:

1 3/4 cups of flour

1/3 cup oil

1 1/2 teaspoons baking powder

3/4 cups sugar

1/2 teaspoons salt

1 egg

3/4 cups milk

1/4 teaspoon cinnamon

I hope this is right!

Step-by-step explanation:

Looks like I can update my answer!

Okay...the recipe is...

Doughnut muffins

Yields: 36 muffins

5 1/4 cups of flour

1 cup oil

4 1/2 teaspoons baking powder

2 1/4 cups sugar

1 1/2 teaspoons salt

3 eggs

2 1/4 cups milk

3/4 teaspoon cinnamon

Alright, it looks as though what you need to do here first is to turn everything into improper fractions. This would result in:

21/4 cups of flour

1/1 cup oil

9/2 teaspoons baking powder

9/4 cups sugar

3/2 teaspoons salt

3/1 eggs

9/4 cups milk

3/4 teaspoon cinnamon

Then, divide everything by three...

7/4 cups of flour

1/3 cup oil

3/2 teaspoons baking powder

3/4 cups sugar

1/2 teaspoons salt

1/1 egg

3/4 cups milk

1/4 teaspoon cinnamon

...and simplify.

1 3/4 cups of flour

1/3 cup oil

1 1/2 teaspoons baking powder

3/4 cups sugar

1/2 teaspoons salt

1 egg

3/4 cups milk

1/4 teaspoon cinnamon

There you go!

Answer:

40 and 89

Step-by-step explanation:

let x be the number then the other number is 2x + 9, then

x + 2x + 9 = 129, that is

3x + 9 = 129 ( subtract 9 from both sides )

3x = 120 ( divide both sides by 3 )

x = 40

Thus the numbers are

x = 40 and 2x + 9 = 2(40) + 9 = 80 + 9 = 89

Answer:

a) 240 km

b) 60 km in 1 hour

Answer:

A) It will take 4 hours to get to a distance of 240.

B) If we find the unit rate of 240 by 4, divide 240 by 4, which is 60.

Step-by-step explanation:

A) Look at the graph, you see the dot is left by 240 and down by 4. So it would take 4 hours to get to a distance of 240.

B) Like I said, we divide 240 by 4. Make sure to put 1 as the denominator, and divide the top and bottom by 4.

Answer:

a^(-n) = 1/(a^n)

In words, this rule says that if you have a base "a" raised to a negative exponent "-n", you can simplify the expression by flipping the base to the reciprocal (1/a), and changing the sign of the exponent to positive "n".

For example, let's say we have the expression 2^(-3). Using the negative exponent rule, we can simplify this as follows:

2^(-3) = 1/(2^3) = 1/8

So, 2^(-3) is equivalent to 1/8.