A real estate agent wants to estimate the mean selling price of two-bedroom homes in a particulararea. She wants to estimate the mean selling price to within $10,000 with an 89. 9% level of confidence. The standard deviation of selling prices is unknown but the agent estimates that the highest selling price is$1,000,000 and the lowest is $50,000. How many homes should be sampled

The solution of equation is x=-3

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

Given

The equation;√x+3=-6

Now,

√x=-6-3

√x=-9

x=-3

Therefore the answer of the given equation will be -3

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Answer:-5 10 ,13

Step-by-step explanation:

Answer:

Step-by-step explanation:

1st of July: J

4th of January: U

1st of December: D

8th of February: Y

Answer: JUDY!

Answer:

Child  this has to be one the most hard riddles I ever did

Step-by-step explanation:

In a two-factor experiment, the expected value of the mean square for the major factor

(a) can differ depending on whether the minor factor

(b) is fixed or random.

Both parts are briefly discussed belwo.

If the minor factor (b) is fixed, it means that the levels of the minor factor are chosen by the experimenter, and they are held constant throughout the experiment.

In this case, the expected value of the mean square for the major factor (a) is calculated by dividing the sum of squares for the major factor by the degrees of freedom for the major factor.

The degrees of freedom for the major factor are equal to the number of levels of the major factor minus one.

On the other hand, if the minor factor (b) is random, it means that the levels of the minor factor are chosen randomly from a population of possible levels, and they are not held constant throughout the experiment.

In this case, the expected value of the mean square for the major factor (a) is calculated by dividing the sum of squares for the major factor by the degrees of freedom for the major factor and the degrees of freedom for the interaction between the major and minor factors.

The degrees of freedom for the interaction are equal to the product of the degrees of freedom for the major and minor factors.

The reason why the expected value of the mean square for the major factor (a) differs depending on whether the minor factor (b) is fixed or random is that in the fixed case.

The variability due to the minor factor is accounted for in the error term, while in the random case, the variability due to the minor factor is accounted for in the interaction term.

Therefore, the degrees of freedom for the major factor are different in the two cases, and this affects the expected value of the mean square for the major factor.

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Answer:

252

Step-by-step explanation:

9x-7=-63

-63x-4=252

remember positive times a negative equals a negative.

negative times a negative equals a positvie.

positive times a positive equals a positive.

The  equation of best fit is ŷ = 2.69152X + 3.45818.

From the data we cab write,

Sum of X = 45

Sum of Y = 155.7

Mean X = 4.5

Mean Y = 15.57

Sum of squares (SSX) = 82.5

Sum of products (SP) = 222.05

So, Regression Equation = ŷ = bX + a

Now, b = SP/SSX = 222.05/82.5 = 2.69152

and, a = MY - bMX = 15.57 - (2.69*4.5) = 3.45818

Thus, the equation of best fit is ŷ = 2.69152X + 3.45818.

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Answer:

Step-by-step explanation:

The parenthesis can cancel because the lack of anything you can do in them, so that will leave you with 7m + 3 + 7m + 6

Next step is to add like numbers, you should start by adding 7m + 7m, which would be 14m.

Next would be to add 3 + 6, which is nine.

To end this equation, simply put 14m + 9

There is no one-number answer because we do not know what m is. So the equation 14m + 9 is the final answer.

Answer:

Step-by-step explanation:

See image

Answer:

The answer is 35

Step-by-step explanation: The other person who answered this got it correct and I took the test. :)

The best description of the distribution is bimodal with a gap.

Here in the plot, we can see that there are two peaks and it implies that there are two modes.

This can be seen in a histogram as a distinct gap between two cohesive groups of bars. When two clearly separate groups are visible in a histogram, you have a bimodal distribution. Literally, a bimodal distribution has two modes, or two distinct clusters of data

We can see that there is a gap between the two modes. So the best description of the distribution is bimodal with a gap.

The following dot-Plot shows the bimodal with a gap.

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Answer:

42.5 meters per minute

Step-by-step explanation:

you divide 1700 by 40 to find the unit rate :)

Explanation:

This is a constant vertical line on x = -1

Answer:

The graph is:

Answer:

ABCDEFGHIJKLMNOPQRSTUVWXYZ i get it

Step-by-step explanation:

wahahahahahhahaha....

that's so funny l m a o....

I never noticed this....ahahahahahaha

ima share this with my friend lol...

thanks for this....ahahaha

have a great day :)

seriously, that's funny!

Answer:

The coordinates are... (4,1), (0,2), (8,3), (4,1)

The transformation of the given triangles is given by ΔA'B'C' where

A' = (0,2), B' = (4,1), C' = (8,3) this transformation can be seen in the attached figure.

The transformation of a two dimensional figure is given by manipulating given figure using translation, rotation or compression or expansion.

Given a triangle ABC with coordinates A (-3,4) , B (1,3) , C (5,5)

The transformation rule is given as :

(x, y ) → ( x+3 , y -2)

Then let the new coordinates of ΔABC are A' , B' , C'

For A' , (-3,4) → ( -3+3 , 4 -2) = (0,2)

A' = (0,2)

For B' , (1,3)  → ( 1+3 , 3-2) = (4,1)

B' =(4,1)

For C' , (5,5)  → ( 5+3 , 5-2) = (8,3)

C' = (8,3)

Therefore the coordinates of the transformed triangle is A' = (0,2),

B' = (4,1), C' = (8,3) and Δ A' B' C' can be seen in the attached figure.

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Answer:

that would be correct it would be 1/20 or as a decimal 0.05

Answer:

A is the Answer

Step-by-step explanation:

Since the population is being split up into 2 divisions out of 5,000.

This means District X and Y must add up 5000.

\(x + y = 5000\)

District X and Y must differ no more than 500 people.

So this means that X and Y total people difference cannot be over 500 people. So the equation for this is

\(x - y \leqslant 500\)

A shows this so A is the answer.

The tables is completed as follows

5.1.1

1    8

2   16

4    24

6   48

8    64

12    96

5.1.2

The type of proportion is Direct Proportion

5.2.1

1    8

2   4

4    2

6     1

8    0.5

5.1.3

The type of proportion is Inverse Proportion

Direct Proportion: A direct proportion is a relationship between two variables where an increase in one variable results in a proportional increase in the other variable, and a decrease in one variable results in a proportional decrease in the other variable.

The general formula for a direct proportion is y = kx,

where

k is the constant of proportionality.

Inverse Proportion: An inverse proportion is a relationship between two variables where an increase in one variable results in a proportional decrease in the other variable, and a decrease in one variable results in a proportional increase in the other variable.

The general formula for an inverse proportion is y = k/x,

Joint Proportion: A joint proportion is a relationship between three or more variables where one variable is directly proportional to the product of the other variables.

The general formula for a joint proportion is y = kxy,

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Answer:

Step-by-step explanation:

Remark

Givens

Circumference = 27.004

pi = 3.14

Formula

C = 2*pi * r

Solution

27.004 = 2 * 3.14 * r

27.004 = 6.28 * r

27.004/6.28 = r

r = 4.3

Answer:

Base = 10

height = 6

Area = 1/2

Answer:well if a ice cub melts its probally gonna be 0

Step-by-step explanation:

im not so good sorry

Answer:

b = 14.34

Step-by-step explanation:

sin(Θ) = (Opposite/Hypotenuse)

sin(35)= (b/25)

25 x sin(35) = 14.33941091

Answer:

1. 4 2. 4 3. 5 4.1

Step-by-step explanation:

first box is 4 second box is 4 third is 5 fourth is 1.

You're welcome.

As Daniel has $1,200 in the bank, he will consequently have around $1,259.18 after a year.

In order to earn interest on both the initial principal and the accrued interest from prior periods, compound interest is the practise of adding interest to the principal amount of a loan or deposit. In other words, the principal plus the interest produced during each compounding period becomes the principal for the subsequent period. "Interest on interest" is how compound interest is often referred to.

given

Growth is not linear since Daniel is receiving compound interest.

Using the compound interest formula, we can determine how much money Daniel will have in the bank after a year:

A = P(1 + r/n)^(nt) (nt)

where n is the number of times the interest is compounded per year (since he earns interest each month, n = 12), t is the number of years (in this case, t = 1), A is the amount of money after one year, P is the starting principal (in this case, $1,200), r is the annual interest rate (3.5%).

Inserting the values:

A = 1200(1 + 0.035/12)^(12*1) ≈ $1,259.18

As Daniel has $1,200 in the bank, he will consequently have around $1,259.18 after a year.

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Answer:

The equation of the line is -5/4

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

2,4,6,8,10

The system of linear differential equations is homogeneous and the largest interval such that a unique solution of the initial value problem is guaranteed to exist is (-∞, ∞).

Given the system of linear differential equations can be put in the form (A - λI)X = 0, where λ and X are the eigenvalue and eigenvector of the matrix A, respectively. Determine λ and X and determine whether the system is homogeneous or non-homogeneous. Choose the largest interval such that a unique solution of the initial value problem is guaranteed to exist.For the given system of linear differential equations:

dx/dt = 4x + 6y

dy/dt = -2x - 4y

the matrix A is given by:

 [4   6 ][-2 -4 ]

The eigenvalue λ can be found from the characteristic equation det(A - λI) = 0 as follows:

[4 - λ   6    ][-2    -4 - λ] = 0λ² - λ - 8 = 0

Solving the above equation, we get, λ = -1 and λ = 8.

Therefore, λ1 = -1 and λ2 = 8 are the eigenvalues of matrix A.

To find the eigenvectors, we solve the equation (A - λI)X = 0 for each λ separately.

For λ1 = -1, we get[A - (-1)I]X = 0

⇒[5   6 ][x    ] = 0[-2   -3][y    ]      [x    ][-2y  ]

Therefore, the eigenvector corresponding to

λ1 = -1 is

X1 = [x y]T = [2 -1]T.

For λ2 = 8, we get

[A - 8I]X = 0⇒[-4   6 ][x    ]

= 0[-2  -12][y    ]  [x    ][3y   ]

Therefore, the eigenvector corresponding to

λ2 = 8 is

X2 = [x y]T = [3 1/2]T.

The given system of linear differential equations can be written in the matrix form as

dX/dt = AX,

where A is the matrix [4 6][-2 -4] and X is the column vector [x y]T.

The general solution of this system is given by

X(t) = c1 e^(λ1t)X1 + c2 e^(λ2t)X2,

where c1 and c2 are constants of integration and X1 and X2 are the eigenvectors corresponding to the eigenvalues λ1 and λ2, respectively. Therefore, the general solution of the given system is given by

x(t) = 2c1 e^(-t) + 3/2 c2 e^(8t)y(t)

= -c1 e^(-t) + 1/2 c2 e^(8t)

where c1 and c2 are constants of integration to be determined from the initial conditions. Since the system of differential equations is homogeneous, the trivial solution x(t) = y(t) = 0 is a solution of the system. Hence, the system is homogeneous.

The given initial value problem has initial conditions x(0) = 1 and y(0) = 0.

Therefore, we have

c1 + 3/2 c2 = 1 and

-c1 + 1/2 c2 = 0

Solving these two equations, we get c1 = 1/5 and c2 = 2/5.

Therefore, the particular solution of the given initial value problem is given by

x(t) = (2/5) e^(-t) + (6/5) e^(8t)y(t)

= -(1/5) e^(-t) + (1/5) e^(8t)

Hence, the largest interval such that a unique solution of the initial value problem is guaranteed to exist is (-∞, ∞).

The system of linear differential equations is homogeneous and the largest interval such that a unique solution of the initial value problem is guaranteed to exist is (-∞, ∞).

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Answer: 4 side faces and one base faces I believe im sorry times a 100 if its wrong

Step-by-step explanation:

Answer: $43.43

Step-by-step explanation:

Take 9.65 times 4.5 = $ 43.425

Round up; we will get the answer $43.43