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If A, B, and C are nxn invertible matrices, the equation   C^-1(A+X)B^-1=I(n) has a solution which is X=CB-A. Since invertible matrices are those whose inverse matrix exists.

For A to be the matrix  here A⁻¹ is the inverse of it, so AA⁻¹=I, here I is the identity matrix ,since the matrix equation given to us is: C⁻¹(A+X)B⁻¹=In, now multiplying B on the right side and  C on the left side we get :CC⁻¹(A+X)B⁻¹B=CIₙB

=>Iₙ(A+X)Iₙ=CIₙB

=>A+X=CB, according to the property  of the identity matrix.Now adding -A on both sides we get,

=>A+X+(-A)=CB+(-A)

=>X=CB-A, so here the solution for the given matrix equation is: X=CB-A

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The statement which is true is more males were surveyed than females, the correct option is A.

Suppose two dimensions are there, viz X and Y. Some values of X are there as X_1, X_2, ... , X_n and some values of Y are there as Y_1, Y_2, ... , Y_n

List them in title of the rows and left to the columns. There will be n \times k table of values will be formed(excluding titles and totals), such that:

Value(ith row, jth column) = Frequency for intersection of  X_i  and Y_j  (assuming X values are going in rows, and Y values are listed in columns).

Then totals for rows, columns, and whole table are written on bottom and right margin of the final table.

For n = 2, and k = 2, the table would look like:

[tex]\begin{array}{cccc}&Y_1&Y_2&\rm Total\\X_1&n(X_1 \cap Y_1)&n(X_1\cap Y_2)&n(X_1)\\X_2&n(X_2 \cap Y_1)&n(X_2 \cap Y_2)&n(X_2)\\\rm Total & n(Y_1) & n(Y_2) & S \end{array}[/tex]

where S denotes total of totals, also called total frequency.

n is showing the frequency of the bracketed quantity, and intersection sign in between is showing occurrence of both the categories together.

We are given that;

            Males  Females  Total

Soccer      |  31   |    50   |  81

Basketball  |  21   |    50   |  71

Total       |  52   |   100   | 152

Now,

A. More males were surveyed than females.

True. From the table, we can see that 52 males were surveyed, while only 100 females were surveyed.

B. More females like soccer.

False. From the table, we can see that 31 males and 50 females like soccer, so a total of 81 people like soccer. This is the same as the number of females surveyed, so we cannot say that more females like soccer.

C. An equal number of people like soccer and basketball.

False. From the table, we can see that 81 people like soccer, while 71 people like basketball.

D. Twice as many females than males like basketball.

False. From the table, we can see that 21 males and 50 females like basketball. Twice the number of females who like basketball is 100, which is the total number of females surveyed, but this is not twice the number of males who like basketball.

Therefore, by the two-way table the answer will be more males were surveyed than females.  

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Answer: 8521.8 ÷ 8 = 1065.225

Step-by-step explanation: This is extremely simple all you require is a calculator with which you can plug in the variables

Kelly has to pay a tax of $22,562.50 which is approximately around of 20% her taxable income.

The term "taxable income" describes the basis on which an income tax system levies tax. In other words, the amount of income that was taxed by the government.

In most cases, it covers some or all sources of income and is then diminished by costs and other deductions. Every gross income received and utilized to determine your tax liability is referred to as taxable income.

It can be stated simply as your adjusted gross income less any deductions. This covers all pay, gratuities, salaries, and bonuses received from employers. Investments and ill-gotten gains are also mentioned.

The given taxable income is over $43,650. So use the information on line 3 to determine the tax.

Tax =$5,975+25% of the amount over 43,650

=5,975+0.25(110,000 - 43,650)

=5.975+16587.50

=22,562.50

Kelly has to pay a tax of $22,562.50 which is approximately around of 20% her taxable income.

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The completed two-column table used to prove that the quadrilateral WXYZ is a parallelogram is presented as follows;

Statement     [tex]{}[/tex]                                              Reason

1. m∠y = 49, m∠z = 131°, m∠w = 49  [tex]{}[/tex]       Given

2. m∠y + m∠z + m∠w + m∠x = 360 [tex]{}[/tex]    1. ∠ sum property of a quadrilateral

3. 49 + 131 + 49 + m∠x = 360[tex]{}[/tex]                Substitution Property of Equality

4. 229 + m∠x = 360   [tex]{}[/tex]                           2. Summation of values

5. m∠x = 131                                           3. Subtraction Property of Equality

6. ∠x ≅ ∠z and ∠w ≅ ∠y [tex]{}[/tex]                     Angles with equal measures are ≅

7. WXYZ is a parallelogram                 4. The opposite ∠s of a ║ are ≅

A parallelogram is a quadrilateral that has two pairs of parallel facing sides.

The details of the reasons used in the two-column table method to prove that the quadrilateral WXYZ is  parallelogram are illustrated as follows;

∠ sum property of a quadrilateral

The angle (∠) sum property of a quadrilateral, indicates that the addition of the four interior angles of a quadrilateral has a result of 360°

Summation of a set of values

The sum of the values 49 + 131 + 49 is 229

Subtraction Property of Equality

The subtraction property of equality states that the subtraction of the same amount from both sides of an equation produces two new quantities or expressions on both sides of the equation that remain equivalent.

Angles with the same measures are ≅

Angles that are congruent, ≅, are angles that have the same measure

The opposite angles of a ║ are ≅

The angles located in the facing corners of a parallelogram, ║, are congruent.

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The mixture of different shade of green that is bluer will be; ⇒ 2 cups of yellow and 4 cups of blue.

Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

Given that;

A type of green paint is made by mixing 2 cups of yellow with 3.5 cups of blue.

now,

Since, A type of green paint is made by mixing 2 cups of yellow with 3.5 cups of blue.

Hence, The mixture of different shade of green that is bluer is find as;

Let Cups of yellow = 2

And, Cups of blue = x

So, we can formulate;

⇒ 2/x < 2/3.5

⇒ x > 3.5

So, Assume x = 4

Hence, The mixture of different shade of green that is bluer will be;

⇒ 2 cups of yellow and 4 cups of blue.

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The empirical rule states that in a normal distribution, 68% of the observations lie within 1 standard deviation from the mean, 95% of the observations lie within 2 standard deviations from the mean, and , 99.7% of the observations lie within 3 standard deviations from the mean.

a) -  Mean = U = 330 grams

standard deviation= [tex]\sigma=40 \: grams[/tex]

As per the empirical rule, 68% of the observations lie within 1 standard deviation from the mean.

Let [tex]X_1[/tex] and [tex]X_2[/tex] be the 2 random value, between which 68% of the observations lie.

Mathematically,

[tex]X1=U-\sigma[/tex]

[tex]X1[/tex] = 330 - 40

[tex]X1[/tex] =  290

Similarly,

[tex]X1=U-\sigma[/tex]

[tex]X1[/tex] = 330 + 40

[tex]X1[/tex] = 370

Thus, about 68 % of organs will be between 290 and 370 grams in weight.

b) - In this, we need to find the percentage of organs weighing between 250 grams and 410 grams.

We can rewrite 250 as follows:

250= 330− 80 ⇒ 30−2(40) ⇒ 330−2(σ)

The above value (250) lies within 2 standard deviations from the mean.

Similarly,

We can rewrite 410 as follows:

410 = 330+80 ⇒ 330+2(40) ⇒ 330+2(σ)

The above value (410) lies within 2 standard deviations from the mean.\

As per the empirical rule, 95% of the observations lie within 2 standard deviations from the mean.

Thus, 95% of organs weighs between 250 grams and 410 grams.

c)-As we have calculated in part(b) that 95% of the organs lie within 250 and 410 grams.

So, area outside these values = Total area under curve - 95%

= 100 - 95 ⇒ 5%

So, 5% of the area lies outside the 250 and 410 grams range.

From the property of normal curve, we know that the area under the curve is divided into 2 equal parts.So, we divide the area- 5% into 2 equal parts which gives 2.5%.

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Answer:

8 cm

Step-by-step explanation:

15 - 7 = 8

The length of the right side equals the length of the left side.  The left side has a length of 15 and the part that we know for the right side is 7.

Helping in the name of Jesus.

The  function that models y in terms of x is y=0.804x

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

m=4.02-0/5-0

m=4.02/5 = 0.804

Now let us find y intercept

0=0.804(0)+b

b=0

Hence, the  function that models y in terms of x is y=0.804x

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The conversion factor between kilometers per hour and miles per hour is 1.609344. Therefore, to convert from kmh to mph, we need to divide the speed in kmh by this conversion factor. 80kmh is equivalent to approximately 49.71 mph.

To find the speed in mph, we can use the following formula:

mph = kmh / 1.609344

Plugging in the given speed of 80kmh, we get:

mph = 80kmh / 1.609344

mph = 49.70969538

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The rate of change of the function represented in the table is 12 For the given x- and y-values, the function is f(x)=12x+34

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

m=26-2/5-3

=24/2

=12

Rate of change is 12.

Now let us find y intercept

26=12(5)+b

26=60+b

26-60=b

b=34

So the function is y=12x+34

Hence, the rate of change of the function represented in the table is 12 For the given x- and y-values, the function is f(x)=12x+34

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Question

A function is represented by the table. x y

3 -2

5 -26

7 -50

The rate of change of the function represented in the table is_____

. For the given x- and y-values, the function is____

The percent error of the measurement, to the nearest tenth of a percent, is 5.6.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

John measured a line to be 1.7 inches long.

The actual length of the line is 1.8 inches.

The amount of error = 1.8 - 1.7

The amount of error = 0.1

Let 1 - n be the required percentage of error.

Then applying the percentage formula,

1.8 x n /100 = 1.7

Applying cross multiplication,

we get,

1.8n = 170

n = 170/1.8

n = 94.4

So, 1 - n = 100 - 94.4 = 5.6

Therefore, the percentage is 5.6.

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The Zucchini will be longer than 11 feet on the ninth day.

Since 12 inches is equal to 1 foot, then 11 feet will be equal to 132 inches. Below, we are going to describe the rate of the plant's growth from day 1.

Day 1 = 6 inches

Day 2 = 6 + 9 inches = 15 inches

Day 3 = 15 + 9 + 3 = 27 inches

Day 4 = 27 + 12 + 3 = 42

Day 5 = 42 +15 + 3 = 60

Day 6 = 60 + 18 + 3 = 81

Day 7 = 81 + 21 + 3 = 105

Day 8 = 105 + 24 + 3 = 132

Day 9 = 132 + 27 + 3 = 162

We are told that on the second day, the tree grew up to 15 inches and subsequently, it grew by the same amount as the day before plus another three inches.

Going by that calculation, on the third day, the tree will grow by 9 inches plus three more inches and this continues. Finally, on the ninth day, the tree would have grown up to 162 inches which is greater than 132 inches or 11 feet.

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The inequality that can be used to determine how many hours Matilda will need to babysit to buy the dress is 40 + 9x >= 112 , here the x needs to be greater than or equal to 8 i.e. x >=8.

Given, Matilda needs at least $112 to buy a new dress.

Money she has =$40

Money she earns for each hour of babysitting = $9

Let, x be the number of hours she will work to earn the minimum amount.

Therefore, the inequality that can be used to determine how many hours Matilda will need to babysit to buy the dress = 40 + 9x >= 112

                                                                               x >=8 hour

So, The inequality that can be used to determine how many hours Matilda will need to babysit to buy the dress is 40 + 9x >= 112 . She needs to work for at least 8 hours to earn the minimum required amount.

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Answer: 0 or No answer

Step-by-step explanation:

2t-2t is 0 so there is no t and 5-5 is 0 so theres no number.

The height of the antenna which is the distance from point A to point B is 4.5657 m.

The angle of elevation is the angle created between the line of sight and the horizontal. The angle created is an angle of elevation if the line of sight is upward from the horizontal line.

Given:

We have to find two height h and H.

So, for distance H

H/ 27= tan 41

H= 27 x 0.8693

H = 23.4711 m

Now, for distance h

h/ 27 = tan 35

h= 27 x 0.7002

h= 18.9054

So, the height of the Antenna

= 23.4711- 18.9054

= 4.5657 m

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Step-by-step explanation:

FCP fundamental counting principle :

in total there are

3×3×2 = 18

different combinations

listing method means listing all different triplets of such outfit combinations.

white shirt = ws

red blouse = rb

floral shirt = fs

short = sh

jeans = j

jogger pants = jp

shoes = s

sandals = sa

{

(ws, sh, s),

(ws, sh, sa),

(ws, j, s),

(ws, j, sa),

(ws, jp, s),

(ws, jp, sa),

(rb, sh, s),

(rb, sh, sa),

(rb, j, s),

(rb, j, sa),

(rb, jp, s),

(rb, jp, sa),

(fs, sh, s),

(fs, sh, sa),

(fs, j, s),

(fs, j, sa),

(fs, jp, s),

(fs, jp, sa)

}

tree diagram (I cannot draw here) :

OOTD

/ | \

ws rb fs

/ | \ / | \ / | \

sh j jp sh j jp sh j jp

/ | / | / | / | / \ / | / | / | / |

s sa s sa s sa s sa s sa s sa s sa s sa s sa

as you can see, we get a expected 18 different triplets in our listed set, and we get 18 different end leaves in and therefore 3-level paths through our tree.

The next value R in the sequence is 6250.

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

2, 10, 50, 250, 1250, R

Now,

We see that the next number in the sequence is a multiple of 5 of the previous number.

i.e

2 x 5 = 10

10 x 5 = 50

50 x 5 = 250

250 x 5 = 1250

So,

R = 1250 x 5

R = 6250

Thus,

The next value R in the sequence is 6250.

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Answer:

Step-by-step explanation:

The Laplace inverse is not a standard function on most calculators. However, if you have a graphing calculator that supports Laplace transforms, you can use it to find the Laplace inverse by performing the inverse Laplace transform on a function.

Here's the general procedure for finding the Laplace inverse on a graphing calculator:

Enter the Laplace transform of the function you want to find the inverse of.

Select the inverse Laplace transform function from the calculator's menu.

Enter the desired complex variable, usually represented by "s" in Laplace transform notation.

The calculator will return the inverse Laplace transform of the function, which represents the original function in the time domain.

Note: The exact steps for finding the Laplace inverse on a graphing calculator will vary depending on the model and brand of the calculator. It's best to consult the manual or a reference guide for your specific calculator to determine how to perform the inverse Laplace transform.

In the research effort where a researcher want to survey the people at the local pool about the food served in the snack shack by deciding to walk around the kiddy pool and survey parents, this is an example of random sample because every parent in the pool have equal chance of being chosen for the study.

A random sample is drawn at random from the entire population to represent the entire data set, with each member having an equal chance of being chosen. Researchers can generate a random sample by employing techniques such as lotteries or random draws.

Because the data set is chosen using random selection, every member of the population has an equal chance of being chosen.

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Answer:11/28

Step-by-step explanation:

we should find Lowest common denominator which is 4*7=28

1/4+1/7=4+7/4*7

Answer: 11/28.

Step-by-step explanation: Add 1/4 to 1/7.

1/4 + 1/7 = 11/28

Answer:

Step-by-step explanation:

Prim's algorithm is a greedy algorithm used to find the minimum spanning tree (MST) of a connected, undirected graph. It works by growing the tree one vertex at a time, always adding the vertex with the lowest weight edge that connects it to the growing tree. The algorithm starts with an arbitrary vertex, adds it to the tree, and then repeats the following steps until all vertices are in the tree:

Find the vertex that is not in the tree but has the minimum weight edge connecting it to the tree.

Add the vertex to the tree and mark it as visited.

Update the minimum weight edges connecting the vertices that are not yet in the tree to the growing tree.

This process continues until all vertices are in the tree, and the final result is the minimum spanning tree. The visualization of Prim's algorithm for minimum spanning tree can be represented graphically by showing the growth of the tree one vertex at a time, and highlighting the edges that are added to the tree in each step. The animation can be used to show how the algorithm is making decisions based on the weights of the edges and how it is gradually building the minimum spanning tree.

Answer:

10 = 3(z + 1) + 1

To start off we simplify boths sides of the equation,

10=3(z+1)+1

10=(3)(z)+(3)(1)+1

10=3z+3+1

Combining like terms*

10=3z+4

Now you flip the equation:

3z+4=10

Now Subtract 4 from both sides.

3z+4−4=10−4

3z=6

Divide by 3**

Andd you gettt

z=2

Step-by-step explanation:

Hope this helps :)

The nearest whole number after rounding is, 14

Rounding a number to the nearest tenth means finding the nearest multiple of 0.1.

To do this, you need to look at the digit in the hundredths place (the second digit after the decimal point) of the number you want to round.

If that digit is 5 or greater, you round the number up by adding 0.1 to the nearest whole number.

If that digit is 4 or less, you round the number down by leaving the nearest whole number unchanged.

For example, rounding 3.456 to the nearest tenth gives 3.5, while rounding 3.444 to the nearest tenth gives 3.4.

Given that,

The decimal number  13.5,

after using rules of rounding,

it can be rounded as 14

Hence, the nearest whole number is 14

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Answer: D, 1.01

1.01 is in between 0.62 and 1.05

Answer: D-1.01

Step-by-step explanation:

Using the law of tangents, the angle of the person’s eyes to the top of the building is approximately 36.87 degrees.

Angle  isc figure that can be described as the amount of rotation between two straight line not planes and angles is measured in degree with the full circle being 360°.

This can be calculated by setting up the following equation:

tan(angle) = 80 ft / (200 ft - 4 ft)

Solving for the angle, we get:

angle = tan-1(80 ft / 196 ft)

angle = tan-1(0.408163265)

angle = 36.87 degrees (to the nearest hundredth of a degree).

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Answer:

$1350.

Step-by-step explanation:

If Justin files a claim for $2100, he will pay the first $750 toward the claim, and his insurance company will pay the remaining costs.

So, Justin will pay $750.

And, the insurance company will pay $2100 - $750 = $1350.