Question 1 (Essay Worth 10 points)
(02.08 HC)
0
In a volatile housing market, the overall value of a home can be modeled by V(x) = 325x² - 4600x+145000, where V represents the value of the home
and x represents each year after 2020. Find the vertex and interpret what the vertex of this function means in terms of the value of the home. Show the
work you completed to determine the vertex.

Answer:

Step-by-step explanation:

To calculate the percent error, we use the formula:

(|(Actual distance - Estimated distance)| / Actual distance) * 100

So for this case:

(|(4.32 - 4.5)| / 4.32) * 100 = (0.18 / 4.32) * 100 = 0.041666666666666664 * 100 = 4.16666667%

Therefore, Kin's percent error is 4.16666667%.

It is important to note that the percent error can be positive or negative depending on whether the estimated value is higher or lower than the actual value.

So the answer is D-0.18%

13 number of runners run at most 2 miles per day .

calculation is explained below as

at 2 miles = 6 runners run

at 3 miles = 4 runners run

at 4 miles = 2 runners run

at 5 miles = 1runners run

on adding to calculate how many number of members run at most 2 miles per day is    = 6 + 4 + 2 + 1 = 13 .

hence 13  number of members run at most 2 miles per day .

A number line plot is a simple way of  visual representation of data patterns at the coordinate axis. on comparing the height of the specific columns,  the least frequently of occurring number can be calculated. The number line of plot becomes a bar graph when the  box is drawn around the Xs or dots in each and every column. A horizontal line, also called  as  x-axis, with equal intervals which are labelled with values which makes  a number line plot. Xs or dots can be used to describe or evaluate  the frequency in which a number, or a set a defined numbers, occurs on number line . Stacks of such producing  Xs or dots that are used to represent data on the axis is known as plot number. .

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The probability that you pick exactly 2 juniors is 15/30 x 14/29 x 13/28 x 12/27, or 0.081.

1. Probability of picking the first junior: 15/30

2. Probability of picking the second junior: 14/29 (14 remaining juniors out of 29 total students after the first pick)

3. Probability of picking the third non-junior: 13/28 (13 remaining non-juniors out of 28 total students after the second pick)

4. Probability of picking the fourth non-junior: 12/27 (12 remaining non-juniors out of 27 total students after the third pick)

Therefore, the probability of picking exactly 2 juniors is

15/30 x 14/29 x 13/28 x 12/27

= 0.081.

The probability of picking exactly 2 juniors out of 4 slips of paper from a hat with the names of all 30 students in your statistics class is 0.081. This is calculated by taking the probability of picking the first junior (15/30) and multiplying it by the probability of picking the second junior (14/29, since there are 14 remaining juniors out of 29 total students after the first pick), the probability of picking the third non-junior (13/28, since there are 13 remaining non-juniors out of 28 total students after the second pick), and the probability of picking the fourth non-junior (12/27, since there are 12 remaining non-juniors out of 27 total students after the third pick).

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Answer:

6cm

Step-by-step explanation:

Given, the length of two sides of a triangle are 6 cm and 10 cm.

We have to find the length of the third side.

We know that the sum of the lengths of any two sides of a triangle is always greater than the length of the third side.

Sum of two sides = 6 + 10

= 16 cm

We know that the third side must be greater than the difference between two sides and less than the sum of two sides.

Difference of two sides = 10 - 6

= 4 cm

So, the third side must be greater than 4 cm and less than 16 cm.

Therefore, the third side is 6 cm.

The number of places you put the lens to form a well-focused image of the candle flame on the wall is either we have to move the screen towards the lens or the lens towards the screen.

Here we have given that the lens to form a well-focused image of the candle flame on the wall.

As we all know that if the candle is further from the wall than the focal length of the lens, then there are two places which will result in an image. Here we have know that one of them is just beyond the focal length from the wall.

Here we have given the other is that same distance from the candle.

Then the position near the wall will yield a small image.

Here the position near the candle will produce a large image.

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The word "and" in probability implies that we use the Multiplication rule.

The correct option is Option D.

The likelihood of both events A and B occurring, in accordance with the probability multiplication rule, is equal to the product of the probability of B occurring and the conditional probability of event A occurring given that event B occurs.

The relationship between two events is explained by the probability multiplication rule.

Set A∩B represents the events in which both events A and B have occurred for two events A and B related to a sample space S. Consequently, (A∩B) indicates that occurrences A and B happened at the same time. You can write the event A∩B as AB. Using the characteristics of conditional probability, the likelihood of event AB is calculated.

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Answer:123,234,345,132,432,543 and i think thats all

Step-by-step explanation:Hope it helps and have a good week:)

For [tex]f(x)[/tex], the axis of symmetry is the vertical line passing through the vertex. Matching with vertex form, we see the vertex of the graph of [tex]f(x)[/tex] has coordinates [tex](4,2)[/tex]. Thus, the axis of symmetry has equation [tex]x=4[/tex].

Similarly, for [tex]h(x)[/tex], the axis of symmetry is the vertical line passing through the vertex. The vertex of the graph of a quadratic function is either the minimum or maximum point (it depends on the leading coefficient of the function). Here, there is a maximum point, which has coordinates [tex](-2,2)[/tex]. Thus, the axis of symmetry has equation [tex]x=-2[/tex].

The vertex form of the parabolae equations are, respectively:

Parabolae are described by quadratic equations, whose standard and factor form are shown below:

Standard form

y = a · x² + b · x + c

Factor form

y = a · (x - r₁) · (x - r₂)

Where:

This equation can be modified into vertex form:

y - k = C · (x - h)²

Where:

The complete procedure to find vertex form is described below:

Now we proceed to find the vertex form of each expression:

Case 1

y = x² - 6 · x - 27

y = (x² - 6 · x + 9) - 36

y + 36 = (x - 3)²

Case 2

y = x² - 2 · x + 7

y = (x² - 2 · x + 4) + 3

y = (x - 2)² + 3

y - 3 = (x - 2)²

Case 3

y = x² + 10 · x

y + 25 = x² + 10 · x + 25

y + 25 = (x + 5)²

Case 4

y = x² + 14 · x + 50

y = (x² + 14 · x + 49) + 1

y = (x + 7)² + 1

y - 1 = (x + 7)²

Case 5

y = x² - 3 · x

y + 9 / 4 = x² - 3 · x + 9 / 4

y + 9 / 4 = (x - 3 / 2)²

Case 6

y = x² - 5 · x + 8

y = (x² - 5 · x + 25 / 4) + 7 / 4

y - 7 / 4 = (x - 5 / 2)²

Case 7

y = 2 · x² + 8 · x

y = 2 · (x² + 4 · x)

y + 2 · 4 = 2 · (x² + 4 · x + 4)

y + 8 = 2 · (x + 2)²

Case 8

y = 3 · x² + 6 · x + 10

y = 3 · (x² + 2 · x + 10 / 3)

y = 3 · (x² + 2 · x + 1) + 7

y - 7 = 3 · (x + 1)²

Case 9

y = 5 · x² + 40 · x - 6

y = 5 · (x² + 8 · x - 6 / 5)

y + 5 · 16 = 5 · (x² + 8 · x + 16) - 6

y + 86 = 5 · (x + 4)²

Case 10

y = (x + 5) · (x - 9)

y = x² - 4 · x - 45

y + 4 = (x² - 4 · x + 4) - 45

y + 49 = (x - 2)²

Case 11

y = (x - 4) · (x + 10)

y = x² + 6 · x - 40

y + 9 = (x² + 6 · x + 9) - 40

y + 49 = (x + 3)²

Case 12

y = (x + 2) · (x + 10)

y = x² + 12 · x + 20

y + 16 = x² + 12 · x + 36

y + 16 = (x + 6)²

Case 13

y = (x - 2) · (x - 6)

y = x² - 8 · x + 12

y + 4 = x² - 8 · x + 16

y + 4 = (x + 4)²

Case 14

y = (x + 1) · (x + 4)

y = x² + 5 · x + 4

y + 9 / 4 = x² + 5 · x + 25 / 4

y + 9 / 4 = (x + 5 / 2)²

Case 15

y = (x + 4) · (x - 5)

y = x² - x - 20

y + 1 / 4 = (x² - x + 1 / 4) - 20

y + 81 / 4 = (x - 1 / 2)²  

Case 16

y = 2 · (x + 2) · (x + 4)

y = 2 · (x² + 6 · x + 8)

y + 2 · 1 = 2 · (x² + 6 · x + 9)

y + 2 = 2 · (x + 3)²

Case 17

y = x · (x + 6)

y = x² + 6 · x

y + 9 = x² + 6 · x + 9

y + 9 = (x + 3)²

Case 18

y = 3 · (x + 4) · (x - 8)

y = 3 · (x² - 4 · x - 32)

y + 3 · 4 = 3 · (x² - 4 · x + 4) - 3 · 32

y + 12 = 3 · (x - 2)² - 96

y + 108 = 3 · (x - 2)²

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The statement that correctly describes the proportion of arm spans that are longer than 170 cm in the stem plot is C.

The proportion of arm spans that are longer than 170 cm is about the same for Class A and Class B.

It should be noted that from the information given, the variability of the arm span shows that they have about the same variability.

Therefore, the statement that correctly describes the proportion of arm spans that are longer than 170 cm in the stem plot is C. The proportion of arm spans that are longer than 170 cm is about the same for Class A and Class B.

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The measurement of side AC in the given right triangle is 10.12 units.

A triangle having at least one angle measuring 90° is called a right triangle.

Given that, a triangle ABC, right-angled at A,

AB = 15 and BC = 18.1, we need to find AC,

Please refer to the figure attached,

Using Pythagoras theorem,

BC² = AB² + AC²

AC² = BC² - AB²

AC² = (18.1)² - 15²

AC² = 327.61 - 225

AC² = 102.61

AC = 10.12

Hence, the value of AC = 10.12

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The calculator helps to slove an expression. By putting all elements one by one of the expression to get result.

What is a calculator?

A calculator is a device that performs numerical arithmetic operations. Basic calculators can only perform addition, subtraction, multiplication, and division calculations.

To perform basic operations, use the basic operation symbols. Addition (+), subtraction (-), multiplication (), and division () are examples of these operations.

Don't be concerned about the order of operations. A scientific calculator will perform calculations in the correct order.

Using the parentheses keys, you can change the order of operations. The calculator's order of operations will be overridden.

Correct your errors. If you accidentally press the wrong key, press the DEL key. This will remove the last button you pressed, but it will not remove any calculations you've made.

Make a clean sweep of your work. To clear the line, press the CLEAR button. You can probably scroll up to see previous calculations. You can delete these by pressing delete after each line.

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Answer:

Step-by-step explanation:

Plan C is the least expensive plan, as it has the lowest subtotal of $48.00 plus 6.5% fees and taxes.

Answer:

Step-by-step explanation:

Answer:

x = -5

y = -4

Step-by-step explanation:

-2x + 5y = 14

3x - 3y = -3 --divide by 3 --> x - y = -1 --multiply by 2 --> 2x - 2y = -2

-2x + 5y = 14

2x - 2y = -2

Add the two equations

-3y = 12

y = -4

PLUG INTO x - y = -1

x + 4 = -1

x = -5

Hope this helps :)

Have a great day!

Answer:x=3, y=4

sorry if im wrong

Step-by-step explanation:

The double integral. ∫∫R 2x/1 + xy dA, R = [0, 2] × [0, 1] is: 2*(1/2ln(3) - 1/2ln(1))

To calculate the double integral ∫∫R 2x/1 + xy dA, we need to integrate with respect to x and y over the region R = [0, 2] × [0, 1].

We can solve this by using the order of integration.

First we need to fix the limits of integration with respect to y and then integrate with respect to x.

∫∫R 2x/1 + xy dA = ∫(0 to 1) (∫(0 to 2) 2x/(1+xy) dx) dy

∫(0 to 1) (∫(0 to 2) 2x/(1+xy) dx) dy = ∫(0 to 1) ( 2*ln(1+xy)|x=0 to 2) dy

∫(0 to 1) ( 2ln(1+2y) - 2ln(1+0) ) dy

= 2*∫(0 to 1) ln(1+2y) dy

= 2*[y*ln(1+2y) - ∫(0 to 1) ln(1+2y) dy] |y = 0 to 1

= 2*[yln(1+2y) - (1/2 ln(3) - 1/2* ln(1))] |y = 0 to 1

= 2*(1ln(3) - 0ln(1) - 1/2* ln(3) + 1/2* ln(1))

= 2*(1/2ln(3) - 1/2ln(1))

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The polynomial with roots 4, 2i, and −2i is f(x)= x^3-4x^2+4x-16, which can be found by using the factor theorem.

c. f(x)= x^3-4x^2+4x-16

The polynomial with the given roots is a cubic polynomial. To get the coefficients of the polynomial, we can use the factor theorem. The factor theorem states that if a polynomial has a factor (x - a), then a is a root of the polynomial.

Therefore, the polynomial with roots 4, 2i, and -2i is f(x) = (x - 4)(x - 2i)(x +2i)

Expanding this polynomial, we get f(x) = x^3-4x^2+4x-16

The polynomial with roots 4, 2i, and −2i is f(x)= x^3-4x^2+4x-16, which can be found by using the factor theorem.

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Answer:

-16

Step-by-step explanation:

There are four ways for four kings can be next to each other and four queens can be next to each other.

The first way is by positioning the kings and queens diagonally opposite each other.

The second way is by arranging them in a cross shape, with two kings on the top, two queens on the bottom, two queens on the left, and two kings on the right.

This means that in total, there are four possible ways that four kings and four queens can be placed next to each other.

The kings and queens on a card set are four in number. Hence, the probability of their arrangement next to each other would be four.

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The exponential equation represented by the table is given as y = 12(2ˣ)

An equation is an expression composed of variables and numbers linked together by mathematical operations.

The standard form of an exponential equation is:

y = abˣ

Where b is the rate of change and a is the y intercept.

From the table, at point (0, 12):

y = abˣ

Substituting the values gives:

12 = ab⁰

a = 12

At point (1, 24):

y = abˣ

Substituting the values gives:

24 = ab¹

24 = 12b

b = 2

The exponential equation is given as y = 12(2ˣ)

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The scatter plot shows the number of hats and scarves each knitter sold at a knitting show. 02 hats did the knitter who sold 9 scarves sell.

Scatterplot:

A scatterplot  is a graph or mathematical graph that displays the values ​​of usually two variables of a data set using Cartesian coordinates. is a kind of Additional variables can be displayed if the points are coded (color/shape/size). The data is displayed as a set of points, where each point has the value of one variable that determines its position on the horizontal axis and the value of another variable that determines its position on the vertical axis.

According to the Question:

I need to find out how many hats were sold when the knitter sold his 09 scarves.

To find this out, in the scatterplot he needs to find the x-values ​​corresponding to the y-values ​​of the 9 scarves.

Corresponding to 9 on the y-axis, there is a point with a corresponding value of 02.

Therefore, when the weaver sold 09 scarves, he sold two(02) hats.

Option B) 02 is correct.

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The treatments of this experiment are the four different concentrations of the fungus mixtures that are given. The four concentrations are 0 ml/l, 1.25 ml/l, 2.5 ml/l, and 3.75 ml/l.

The experimental units are the 20 individual containers, each containing an equal number of the insects.

The response variable of the experiment is the number of insects that are still alive in each container one week after spraying.

The researchers will measure the number of insects that are still alive in each container after one week and this will be used to determine the effectiveness of the fungus mixture.

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Answer: Answer is 193% or c

Step-by-step explanation: To solve this, we can use algebra. Suppose x represents the percent of increase. 1.37 * x = 4.02. Divide both sides by 1.37 to get x = 2.93. This represents 293% However, since it is asking for the increasing, we need to subtract 100% since we only want to increase, not the total value.

Answer:

b. 393%

Step-by-step explanation:

1.37 + 1.37x% = 4.02

On solving the provided question we can say that so the value of triangle - y + Z = 1+ r = > 1 -r +

A triangle is a polygon since it has three sides and three vertices. It is one of the basic geometric shapes. The name given to a triangle containing the vertices A, B, and C is Triangle ABC. A unique plane and triangle in Euclidean geometry are discovered when the three points are not collinear. Three sides and three corners define a triangle as a polygon. The triangle's corners are defined as the locations where the three sides converge. 180 degrees is the result of multiplying three triangle angles.

here,

in triangle

by construction = y0 = r - 1

Pythagoras =

Pythagoras  =

so the value of triangle -

y + Z = 1+ r

1 -r +

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The correct question is

In the diagram, four circles of radius 1 with centers P, Q, R and S are tangent to one another and sides of △ABC△, as shown. Find the perimeter of △ABC△

.(A) 12+42√12+42

(B) 12+43√12+43

(C) 12+62√12+62

(D) 12+63√12+63

(E) 24

Answer:

3

Step-by-step explanation:

every term is divisible by 3, therefore it is the greatest common factor

Answer: It takes 3 years

Step-by-step explanation:

20 percent of 1000 is 200 so 1000-200=800.  Year 1

20 percent of 800 is 160 so 800-160=640.       Year 2

20 percent of 640 is 128 so 640-128=512.         Year 3

So in total in takes 3 years

Answer:

See photo

Step-by-step explanation:

Edmentum/Plato

Emmy answered average of 60 out of 75 math problems correctly on the quiz she took last week, meaning she answered a total of 60 problems correctly.

60/75 = 0.8

0.8 x 75 = 60

Emmy took a math quiz last week and answered 60% of the 75 problems correctly. To calculate how many problems Emmy got correct, we need to divide 60 by 75, which gives us 0.8. Then, we multiply 0.8 by 75, which gives us 60. This means that Emmy correctly answered 60 out of 75 math problems on the quiz. This is equivalent to 60%, which is the percentage of problems she got correct. It is important to note that if Emmy had answered any more or any less problems correctly, the percentage of correct answers would have been different. Therefore, it is important to understand the relationship between percentages and total number of problems answered correctly in order to accurately calculate the number of correct answers.

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An arborist sights the top of a tree using a clinometer and reads the angle of elevation to be 29º, The height of the tree is 17.03 meters

Generally, To find the height of the tree, we can use the tangent function and some basic trigonometry. The tangent of an angle is the ratio of the opposite side (the height of the tree) to the adjacent side (the distance from the base of the tree to the clinometer).

tan(29) = opposite / adjacent

We know that the distance from the clinometer to the base of the tree is 28 meters, and that the clinometer is 1.5 meters above ground level.

So we can use the Pythagorean theorem to find the adjacent side:

adjacent = √(28^2 + 1.5^2)

= 28.03 meters

Now we can use the tangent function to find the opposite side:

opposite = tan(29) * adjacent

Using a calculator we can get the opposite = 15.53 meters

The height of the tree is opposite + 1.5 (the clinometer height) '

= 15.53 + 1.5

= 17.03 meters

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Answer:

Circumcenter (x) = 2

Circumcenter (y) = -2

Answer:

(2, -2)

Step-by-step explanation:

Midpoint of BC: ([-4 + 8]/2, (4 + 4)/2) = (2, 4)

Perpendicular bisector of BC has equation: x = 2

Midpoint of AC: ([8 + 8]/2, (-8 + 4)/2) = (8, -2)

Perpendicular bisector of AC has equation y = -2

Point of intersection of the two perpendicular bisectors:

(2, -2)

Answer: (2, -2)

A T-score of -3.6 indicates that the individual has a severe case of osteoporosis

A T-score is a standard score used to compare an individual's bone mineral density (BMD) to that of a healthy young adult population. A T-score of -3.6 on a BMD test indicates that the individual's BMD is significantly lower than that of a healthy young adult. Specifically, it means that the individual's BMD is 3.6 standard deviations below the average BMD of a healthy young adult.

A T-score of -2.5 or lower is considered to indicate osteoporosis, which is a condition characterized by low bone density and an increased risk of fractures. Therefore, a T-score of -3.6 indicates that the individual has a severe case of osteoporosis, and the doctor will likely recommend treatment such as medication and lifestyle changes to help increase bone density and reduce the risk of fractures.

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