A train leaves the station at time t=0. Traveling at a constant​ speed, the train travels 260 kilometers in 2 hours. Answer parts a and b

The cylindrical coordinates of (−7, 7, 7) are (√98, -π/4, 7). cylindrical coordinate (−7, 7 3 , 1) is  (14, -π/3, 1).

We must switch from rectangular to cylindrical coordinates in the provided problem. (let r ≥ 0 and 0 ≤ θ ≤ 2π.)

A)(−7, 7, 7)

Given rectangular coordinates(x, y, z) =(−7, 7, 7)

The cylindrical coordinates are (r, θ, z)

As a result, we determine each value of r and θ  separately.

r = √x²+y²

r = √(-7)²+(7)²

r = √49+49

r = √98

θ = tan⁻¹ (y/x)

θ =tan⁻¹  (7/-7)

θ =tan⁻¹  (-1)

θ = -π/4

So cylindrical coordinate = (r, θ, z) = (√98, -π/4, 7)

B) (-7,7√3,1)

Given rectangular coordinates(x, y, z) = (-1,1,1)

The cylindrical coordinates are (r, θ, z)

As a result, we determine each value of r and θ  separately.

r = √x²+y²

r = √(-7)²(7√3)²

r = √49+147

r = √196

r = 14

θ = (y/x)

θ = (7√3/-7)

θ = (-√3)

θ = -π/3

So cylindrical coordinate = (r, θ, z) = (14, -π/3, 1)

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The ordered pair that is a solution to the given equation, y = | -6x + 2 |, is (1, 4)

From the question, we are to determine the ordered pair that is a solution of the given equation

The given equation is

y = | -6x + 2 |

To determine the ordered pair that is a solution to the equation, we will pick a value for x and determine the value of y for the value

y = | -6x + 2 |

Put x = 1

y = | -6(1) + 2 |

y = | -6 + 2 |

y = | -4 |

y = 4

Hence, the ordered pair is (1, 4)

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Answer:

The slope is -4.

Step-by-step explanation:

[tex]m = \frac{11 - 3}{0 - 2} = \frac{8}{ - 2} = - 4[/tex]

Answer:

Step-by-step explanation:

34/5=p2

Answer:

x=+/- i 6

Step-by-step explanation:

x²=+/- rad(i²*36) i²= -1

x²=+/-i rad(36) [rad = square roots]

x²=+/- i 6

[tex]\displaystyle\\Answer:\ \frac{113}{8} =14\frac{1}{8}[/tex]

Step-by-step explanation:

[tex]\displaystyle\\\frac{113}{8}=\\\\\frac{112+1}{8}=\\\\\frac{112}{8} +\frac{1}{8} =\\\\14+\frac{1}{8} =\\\\14\frac{1}{8}[/tex]

The median of the probability density curve is (c) 14

From the question, we have the following parameters that can be used in our computation:

Initial position = 1/12

Suppose we have a set {x₁, ..., xₙ}

The median is the number at the middle.

The difference between a set and a density curve is that the density curve is continuous, so getting the exact middle value can be harder.

In the given graph, we have

Constant density curve that goes from 8 to 20.

Because it is constant, the median will just be equal to the mean,

So, the median is the average between the two extreme values.

The average of two numbers a and b is calculated as

(a + b)/2

So we have

Median = (a + b)/2

Substitute the known values in the above equation, so, we have the following representation

Median = (20 + 8)/2

Evaluate

Median = 14

Hence, the median is 14

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Answer:

Step-by-step explanation:

false that is not at all true

Arthrogryposis, also called arthrogryposis multiplex congenita (AMC), is a term used to describe a variety of conditions involving multiple joint contractures (or stiffness).

Arthrogryposis is a general or descriptive term for the development of non progressive contractures affecting one or more areas of the body prior to birth (congenitally). A contracture is a condition in which the joint becomes permanently fixed in a bent (flexed) or straightened (extended) position, completely or partially restricting the movement of the affected joint. When congenital contractures occur only in one body area which means it is not referred to as arthrogryposis but rather as an isolated congenital contracture. The most common form of an isolated congenital contracture is clubfoot. When arthrogryposis affects two or more different areas in the  body, it may be referred to as arthrogryposis multiplex congenita (AMC).

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Both of the triangles are RIGHT triangles. y X(0,13) Y(0,7) Z(0,3) (0,0) J.  the length of vertical segment XY is 6.

Generally, A part of a line that is totally vertical is referred to as a vertical line segment. This means that the two vertices that make up the segment's ends have the same x- and y-coordinates but different z-coordinates than one another.

The length of vertical segment XY can be found by subtracting the y-coordinate of point X from the y-coordinate of point Y.

In this case, the y-coordinate of point X is 13 and the y-coordinate of point Y is 7, so the length of vertical segment XY is

13 - 7 = 6.

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Complete Question not found

Image not found  

Answer: x³-4x²-2x-4

Tips:

Bring down top values, then multiply by the outside value, then put it under the next value, add, and repeat

10^7 ÷

your question is incomplete, please comment the full question for a more accurate answer

The annual earnings for Walker will be $53223.

A percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100. The percentage therefore refers to a component per hundred.

In this case, Ciara Walker was earning $47,100 and received a 13% raise.

Her new annual earnings directly will be:

= $47100 + (13% × $47100)

= $47100 + $6123

= $53223

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AU is 20 degrees and ∠QPA is 35 degrees and ∠ARU is 40 degrees are the unknown measures.

A triangle is a three-sided polygon that consists of three edges and three vertices.

The incenter of a triangle is the intersection point of all the three interior angle bisectors of the triangle.

In the given triangle A is the incenter for triangle PQR.

By observing figure, AR is angle bisector of angle URK.

So,   ∠ARU = ∠ARK = 40 degree

Since, incenter point is equidistant from the sides of a triangle.

AT = AU = AK = 20

Since, PA is angle bisector of angle QPU.

So,  ∠QPA = ∠UPA

3x + 2 = 4x - 9

Subtract 3x and add 2 on both sides of equation.

4x - 3x = 9 + 2

x = 11

Now plug in x value in ∠QPA=3(11)+2

=33+2=35 degrees.

Hence, Measures ∠ARU is 40 degrees, AU is 20 degrees and ∠QPA is 35 degrees.

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The equation representing the total profit earned by Maon is Profit = 256 - 128.

Profit is calculated by the formula -

Profit = Cost price - Selling price

Cost price = 64×2

Performing multiplication to find the cost price

Cost price = $128

Selling price = 64×4

Performing multiplication to find the selling price

Selling price = $256

Keep the values in equation to find the profit

Profit = 256 - 128

Performing subtraction on Right Hand Side of the equation to find the profit

Profit = 128

Thus, the profit earned is $128.

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Answer:

The two equations are true for the same value because when you substitute 7 for x both of them are correct

Step-by-step explanation:

1) 3(7) - 5 = 16             3(7) = 21

27 - 5 = 16                    21 = 21

16 = 16                             True

True                                    

Answer:

Step-by-step explanation:

it is

The result of subtractions with mixed fractions are listed below:

In this question we have five case of subtractions with mixed fractions, the procedure is summarized below:

Case 1

[tex]5 \frac{1}{4} - 2\frac{5}{7}[/tex]

(5 + 1 / 4) - (2 + 5 / 7)

(20 / 4 + 1 / 4) - (14 / 7 + 5 / 7)

(21 / 4) - (19 / 7)

(21 · 7 - 19 · 4) / (4 · 7)

71 / 28

Case 2

[tex]4\frac{1}{2} -1\frac{8}{10} \\[/tex]

(4 + 1 / 2) - (1 + 8 / 10)

(8 / 2 + 1 / 2) - (10 / 10 + 8 / 10)

9 / 2 - 18 / 10

9 / 2 - 9 / 5

(9 · 5 - 9 · 2) / (2 · 5)

(45 - 18) / 10

27 / 10

Case 3

[tex]3\frac{1}{2} - 2\frac{2}{3}[/tex]

(3 + 1 / 2) - (2 + 2 / 3)

(6 / 2 + 1 / 2) - (6 / 3 + 2 / 3)

7 / 2 - 8 / 3

(7 · 3 - 8 · 2) / (2 · 3)

(21 - 16) / 6

5 / 6

Case 4

[tex]2\frac{3}{4} - 1 \frac{1}{2}[/tex]

(2 + 3 / 4) - (1 + 1 / 2)

(8 / 4 + 3 / 4) - (2 / 2 + 1 / 2)

11 / 4 - 3 / 2

(11 · 2 - 3 · 4) / (4 · 2)

(22 - 12) / 8

10 / 8

5 / 4

Case 5

[tex]3\frac{1}{3} - 1 \frac{1}{4}[/tex]

(3 + 1 / 3) - (1 + 1 / 4)

(9 / 3 + 1 / 3) - (4 / 4 + 1 / 4)

10 / 3 - 5 / 4

(10 · 4 - 5 · 3) / (4 · 3)

(40 - 15) / 12

25 / 12

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There are 8 players who weigh between 169 and 194 pounds.

To answer this question, we can look at the box plot to understand the distribution of weights on the football team. The box plot shows us the minimum, maximum, median, and quartiles of the team's weights. The left quartile is 169 pounds, and the right quartile is 194 pounds. This means that 25% of the team's players weigh between 169 and 194 pounds. Since the team has 36 players, 25% of 36 is 9. However, since we are looking at the number of players between 169 and 194 pounds, we need to subtract 1 since the right quartile of 194 pounds is included in the number of players. Thus, there are 8 players who weigh between 169 and 194 pounds.

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Answer:

Below

Step-by-step explanation:

1500 = 1000 e^.03t

1.5 = e^.03t

take LN of both sides

.405465 = .03 t        t =13.5 yrs

Chi-square independence test.

A test that evaluates how well a model matches real observed data is the chi-square (2) statistic.

A chi-square statistic can only be calculated with data that is random, unprocessed, mutually exclusive, obtained from independent variables, and drawn from a sizable enough sample.

The outcomes of a fair coin toss, for instance, satisfy these requirements.

To test hypotheses, chi-square tests are frequently employed.

Given the size of the sample and the number of variables in the relationship, the chi-square statistic examines the size of any discrepancies between the expected results and the actual results.

According to the total number of variables and samples used in the experiment, degrees of freedom are utilized in these tests to assess whether a particular null hypothesis can be rejected. as well.

According to our question-

The independence of two variables, each of which is categorized into a variety of categories or attributes, is also tested using the chi square statistic.

When the cell probabilities rely on the unknown parameters, the goodness of fit test is relevant as long as the unknown parameters are substituted by their estimates and as long as one degree of freedom is subtracted for each estimated parameter.

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Answer: B

Step-by-step explanation:

Equation: S=KT

Just do S divided by T to get K and you get 7

Answer: s=7t

Step-by-step explanation:

you have to multiply every answer in the t column by 7 to get the number across in the s column

Answer:  C. 15 ≤ 2x + 9 ≤ 19

Step-by-step explanation:

We know that her goal is to knit at least 12 scarves and, at the most, 19 scarves

So it has to be bigger or equal to 15 and smaller or equal to 19, so it can't be A or D.

We also know that she has already knitted 9, so our equation has to have a +9

So the answer is C. 15 ≤ 2x + 9 ≤ 19

Answer:

100n/m

Step-by-step explanation:

n = m% of x

n = mx/100

x = 100n/m

Natalee's mistake is that she has written the function incorrectly. In her function, she has multiplied the starting number of bacteria, 100, by the growth rate, 40%, to get the final number of bacteria. However, this is not correct because a growth rate of 40% means that the number of bacteria increases by 40% of the starting number, not by 40 itself.

To write the correct function, we can use the fact that a growth rate of 40% means that the final number of bacteria is 1.4 times the starting number. Therefore, the correct function for this scenario is y = 1.4 * 100 = <<1.4*100=140>>140. This function shows that the number of bacteria increases to 140 after experiencing a 40% increase in growth.

Answer:

The actual function for this scenario would be:

y = 100 * 1.40

Step-by-step explanation:

Natalee's mistake was that she didn't add 1 to the value of the increase. When you multiply a number by 1 plus the percentage increase, you get the correct result. In this case, the correct function would be:

y = 100 * 1.40

This function will show a 40% increase in the number of bacteria, starting with 100 bacteria. When graphed, the y-values will not be extremely high.

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In the given sample mean, there are total 5 elements present.

An average of a group of data is called a sample mean.

A data set's central tendency, standard deviation, and variance can all be determined using the sample mean.

A population average can be determined using the sample mean, among other things.

Both the sample mean and sample median are helpful statistics for outlining a data set's core tendency.

The sample mean uses all of the data values because it is the arithmetic average.

Extreme values have no impact on the sample median, which simply uses one or two middle values.

So, we have the sample mean:

0 | 3 | 25 | 100 | 5,000

Now, in the given sample mean we can count that the number of values or the elements is 5.

Therefore, in the given sample mean, there are total 5 elements present.

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Correct question:

How many elements are there in this object called a sample means small?

Sample mean:

0 | 3 | 25 | 100 | 5,000

The volume of a cone is 125(pi) in3. The height is three time the length of the radius. The height of the cone = 3 × 125π = 375π inches

Given:

Volume of cone = 125π in3

Height = 3 times the radius

To find:

Height of the cone

Height of the cone = 3 × 125π = 375π inches

The given information is the volume of a cone, which is 125π in3, and the height of the cone which is 3 times the radius. To find the height of the cone, we need to multiply the volume by 3. Using the given information, we can calculate the height of the cone by multiplying 125π by 3, which gives us 375π inches as the height of the cone.

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Answer:

3 nickels and 5 pennies

Step-by-step explanation:

3 nickels = 15¢

5 pennies = 5¢

15+5=20

Answer: i know how to do it but i can't really see it pls bring it closer

Step-by-step explanation:

Answer: 3

Step-by-step explanation: