suppose we select every fifth invoice in a file. what type of sampling is this? cluster random systematic stratified

Answer:

x^2 + 6x + 5

see attached image for sol

Answer:

[x^2 + 6x + 5]

Step-by-step explanation:

(x + 1)(x + 5)

Utilize FOIL

First

Outer

Inner

Last

x * x = x^2

x * 5 = 5x

1 * x = x

1 * 5 = 5

x^2 + 5x + x + 5

Combine like terms:

[x^2 + 6x + 5]

Answer:

Let A B = x miles = 18

     B C = y miles

t1 = (18 + y) / 10        time for biker 1 to reach C

t2 = y / 4  = y / 4

t1 = t2       both bikers reach C at same time

(18 + y) / 10 = y / 4

72 + 4 y = 10 y

y = 12     distance from B to C

Check:

A C = 12 + 18 = 30 km

t1 = (18 + 12) / 10 = 3 hr

t2  = 12 / 4 = 3 hrs

So both meet  at C in 3 hrs

Answer:

22500

Step-by-step explanation:

This is because 75 x 60 = 4500 (that gives us the beats per hour)

4500 x 5 = 22500 (that gives us the beats per 5 hour)

Answer:

5×60=300mins

1min=75heartbeat

300min=300×75=22500heartbeat

Answer:

D. p - 0.20p

Step-by-step explanation:

Answer:

Step-by-step explanation:

1. Area=113.1 mm^2

2. Radius=12mm

Area=452.4 mm^2

3. Radius=8 mm

Area=201.06 mm^2

4. Radius=1 km

Area=3.1416 km^2

After simplification, value of expression is (x - 2y) (x² - 4) / 8.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

The algebraic fraction is,

⇒ (x² - 4xy + 4y²) / (2x - 4) ÷ (x - 2y) / (x - 2) × (x² - 4) / 4

Now, Simplify the expression as;

⇒ (x² - 4xy + 4y²) / (2x - 4) ÷ (x - 2y) / (x - 2) × (x² - 4) / 4

⇒ (x² - 4xy + 4y²) / (2x - 4) × (x - 2) / (x - 2y) × (x² - 4) / 4

⇒ (x² - 4xy + 4y²) / (2x - 4) × (x - 2) / (x - 2y) × (x - 2) (x + 2)/ 4

⇒ (x - 2y)² / 2(x - 2) × (x - 2) / (x - 2y) × (x - 2)(x + 2) / 4

⇒ (x - 2y) / 2 × (x² - 4) / 4

⇒ (x - 2y) (x² - 4) / 8

Thus, After simplification, value of expression is (x - 2y) (x² - 4) / 8.

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The simplified solution is -6+4y-10m.

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

here, we have,

-2/4 (12 - 8y + 20m)

now, dividing & multiplying we get,

⇒ -2(3-2y+5m)

⇒-6+4y-10m

Hence, The simplified solution is -6+4y-10m.

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Answer:

did this for points

oci hcduibghvfv

Step-by-step explanation:

:)

The coordinate point of C is (4.5, 6).

When a point on a line segment divides it into two segments, the formula used to determine the coordinates of that point is known as the section formula. Let us say, we have a point P(x,y) that divides the line segment with marked points as A (x1,y1) and B(x2,y2). To find the coordinates, we use the section formula, which is mathematically expressed as:

P(x, y) = P(x, y) = [(mx₂+nx₁)/(m+n), (my₂+ny₁)/(m+n)]

Given that, Philip travels from town A, with coordinates (1, 6) to town B, with coordinates (7, 6).

The ratio of Philip's Bruces rates is 7:5.

Substitute (x₁, y₁)= (1, 6), (x₂, y₂)= (7, 6) and m:n=7:5 in the section formula, we get

C(x, y) = [(7×7+5×1)/(7+5), (7×6+5×6)/(7+5)]

C(x, y) = (54/12, 72/12)

C(x, y) = (4.5, 6)

Therefore, the point is (4.5, 6).

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Answer:

Step-by-step explanation:

A 21-ft ladder is leaning against a building. if the base of the ladder is 9 ft from the base of the building, then the angle of elevation of the ladder will be: α = 71° .

From trigonometry we have:

cos α = 7/21

7 = 21 cos(α)

and:

α = arc cos(7/21) = 70.5 ≈ 71∘

The angle of elevation is the angle between the horizontal line of sight and the article.

Considering that, A 21-ft stepping stool is resting up against a structure. Assuming the foundation of the stepping stool is 9 ft from the foundation of the structure,

Subsequently, Angle of Elevation is x = 71° and the Level of stepping stool arriving at the wall = 21 ft .

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The relationship between w and s can be represented as s = 3w.

An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side

When 4 grams are added to the spring, the spring stretches 4 × 3 = 12 centimeters.

When 6 grams are added to the spring, the spring stretches 6 × 3 = 18 centimeters.

In this way, if w grams are added to the spring, the spring stretches w × 3 centimeters.

Let s represent the distance the spring is stretched.

s = 3w

Hence the required relationship is s = 3w.

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As per the permutation concept the number of ways to seat 5 boys, 5 girls, and 1 (or 2) parent in a circular arrangement around a table such that no boy is to sit next to a boy and no girl is to sit next to a girl is 72,000.

The concept of permutation comes into play when we need to find the number of ways to arrange a set of elements.

We can use the formula for circular permutation, which is (n-1)! where n is the number of elements. In this case,

=> n = 11 (5 boys + 5 girls + 1 parent).

Therefore, the total number of permutations possible is

=> (11-1)! = 10!.

Next, we need to find the number of permutations possible for arranging the boys and girls.

Since each boy or girl can be placed in 5! ways (5 possible positions), the number of permutations for arranging the boys and girls becomes

=> 5! * 5! = 120 * 120 = 144,000.

Therefore, we need to divide the above result by 2. The final answer is

=> 144,000 / 2 = 72,000.

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Answer: [tex]5*7[/tex]

Work: 25 = 5 × 5 35 = 5 × 7

Hope it helps!

Answer: 18 years.

Step-by-step explanation:

Turn into an equation:

y=250(1.08)^x

see what number you plug in for x makes y 1000,

and that number is 18.

The probability that a randomly selected student is taking a math class or an English class is 0.79.

Using the formula for the union of two events, P(A or B) = P(A) + P(B) - P(A and B), where A is the event "taking a math class" and B is the event "taking an English class", we can find the desired probability:

P(A or B) = 0.76 + 0.75 - 0.72 = 0.79

So,  "0.79" (which is given in upto two decimal places) is the probability that a randomly selected student is taking a math class or an English class.

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According to the Rank-Size Rule, the population of the 5th largest city in this region is estimated to be 1.1 million people.

The Rank-Size Rule states that the population of a city (n) in a region is proportional to the population of the largest city (P1) in that region, with a power of -1.

So, the population of the nth city in a region can be calculated using the formula:

Pn = P1 / n^1

So, for the 5th largest city in a region where the largest city has 5.5 million people, the population can be calculated as follows:

P5 = 5.5 million / 5^1 = 1.1 million

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Answer:

tmr afternoon on a thursday bc im getting a hamburger with no honey mustard.

Step-by-step explanation:

im doing it rn.

To solve this problem, we can set up an equation by considering the value of nickels and dimes. By solving the equation, we can find the number of nickels and the number of dimes.

Let's assume the number of nickels as x.

The value of nickels is 0.05x dollars.

The number of dimes is stated as '5 more than twice the number of nickels,' which can be expressed as (2x + 5) dimes.

The value of dimes is 0.10(2x + 5) dollars.

Since the total value of the coins is $3.00, we can set up the equation:

0.05x + 0.10(2x + 5) = 3.00

Solving the equation will give us the number of nickels and dimes.

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Answer:

HCF = 6.

Step-by-step explanation:

The Highest Common factor is 6.

Other common factors are 1, 2 and 3.

Answer:

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown".

Answer:

30

Step-by-step explanation:

triangle interior angles sum = 180

so x+2x-15+105 = 180

so 3x = 180-90 = 90

x =30

The required statement "outlier in a data set can significantly affect the value of the mean but not the median" is true.

The average of a group of variables is referred to as the mean in mathematics and statistics. There are several methods for calculating the mean, including simple arithmetic means (adding the numbers together and dividing the result by the number of observations), geometric means, and harmonic means.

The average of a group of variables is referred to as the mean in mathematics and statistics.

There are several methods for calculating the mean, including simple arithmetic means (adding the numbers together and dividing the result by the number of observations), geometric means, and harmonic means.

Thus, given statement is true.

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Answer: To express the expression 8x - x² in the form a - (x + b)², we can complete the square method.

First, we'll add (1/2)^2 = 1/4 to both sides of the expression:

8x - x² + 1/4 = 1/4

Next, we'll rearrange the left-hand side to the desired form:

(2x - 1/2)² - 1/4 = 1/4

Now, we can identify a = -1/4, b = 1/2, so the expression is:

a - (x + b)² = -1/4 - (x + 1/2)²

Step-by-step explanation:

The error kelly made was that sin f is h/e and g = EF

The area of a triangle is given by 1/2 base × height. In the triangle base is g and height is h

In trigonometry, sin(tetha) =[opp/ hypotenuse)

cos (tetha) = adj/hypotenuse

tan(tetha) = opp/ hypotenuse

sinF = e/h

sinE = h/f

this two does not have g at all. so we either use tan or cos.

g is divided into two, let's name it g1 and g2

cos F = g1/e

cos E = g2/f

g1 = e(cos F)

g2 = f(cos E)

g = g1+g2

g = e(cos F) + f(cos E)

A = 1/2bh

A = 1/2 ×( e( cos F) + f(cos E) ) h

Therefore the actual value of the area is /2 ×( e( cos F) + f(cos E) ) h

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Capacity is very expensive, so it is run at high utilization. There is a lot of variability in arrivals and processing times. Waiting or throughput times are long for this process.

Gaining understanding of the trade-offs operations managers must make is a major contribution of OR/MS models. One such trade-off concerns capacity, inventory, and variability: while the firm would want to function at 100% capacity utilization with very no inventory and tolerate high levels of unpredictability, this is not realistic.

The trade-off between these three competing goals is demonstrated and clarified using the conventional G/G/1 queueing paradigm. This insight can be described as a relationship between capacity, inventory, and the third parameter of information in situations where greater information can be used to lessen the variability in services or in arrivals (rather than variability).

Adopting the terminology of Lovejoy (1998), this inter- relationship is referred to as the OM triangle. Finding her company's ideal location in relation to the OM triangle is the manager's responsibility, as was mentioned in this article.

With variable arrival and processing times, there is a long wait period. It should have high utilization because of expensive capacity.

Therefore, the correct option is All the other answers are correct (A).

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complete question: If a process is best situated close to the inventory corner of the OM triangle, then this must mean:

a. All the other answers are correct.

b. Capacity is very expensive, so it is run at high utilization.

c. There is a lot of variability in arrivals and processing times.

d. Waiting or throughput times are long for this process.

Percentage increment means the part of original value is added to the value. The new length of the living room is 14.4 feet long and new width of the living room is 1.6 feet long. The option A is the correct option.

What is the percentage of a number?

Percentage of a number or ratio is fraction of hundred. It is expressed with the sign "%".

Given information-

The length of the living room is 12 feet.

The width of the living room is 8 feet.

The owner increases the 20 percent of length and 20% width.

Suppose new length is  feet long. As the owner increases the 20 percent of length. Thus the new length will be sum of original length and the 20 percent of it. Hence,

Thus the new length of the living room is 14.4 feet long.

Suppose new width is  feet long. As the owner increases the 20 percent of width. Thus the new width will be sum of original width and the 20 percent of it. Hence,

Thus the new width of the living room is 1.6 feet long.

Hence the new length of the living room is 14.4 feet long and new width of the living room is 1.6 feet long. The option A is the correct option.

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Answer:

Step-by-step explanation: I do know bro is, sorry

The missing sides are of the given triangle are of 26.69 units and 11.33 units.

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.

here, we have,

Given that:

One angle of a right angled triangle measures 67 degrees.

Hypotenuse of that right angled triangle measures 29 units.

To find:

Missing sides of the triangle.

Calculations:

The sine trigonometric ratio gives us ratio of perpendicular to hypotenuse from perspective of the considered angle.

Referring to the figure attached below,

sin∠ACB = AB/AC

sin 67° = AB/29

0.9025 = AB/29

i.e. AB = 26.69

Similarly,

cos∠ACB = AB/AC

cos 67° = AB/29

0.3907= AB/29

i.e. AB = 11.33

Thus, the missing sides are of the given triangle are of 26.69 units and 11.33 units.

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The correct option is A) No, because the center of a distribution and the spread are not related

The standard deviation is a measure of the spread or dispersion of a set of data. It is not directly related to the mean or average of the data.

The standard deviation is calculated based on the deviations of each data point from the mean, taking into account how many data points there are.

The mean does not affect the calculation of the standard deviation, as the formula for standard deviation is based solely on the data itself and not on any summary statistics like the mean.

The value of the standard deviation can remain the same even if the mean changes, and conversely, the mean can change without affecting the standard deviation.

Thus, option A) No, because the center of a distribution and the spread are not related is correct.

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The lateral surface area of the rectangular prism is 36 squared centimeters.

Lateral surface of any given shape is all its surface excluding its base and top. Such that the lateral surface area of a given shape is the area of all its surface apart from that of its base and top.

In the given rectangular prism, its lateral surface area can be determined as:

i. area of a rectangle 1 = length x width

                                = 6 * 2

                                = 12

area of its rectangular sides = 2 * 12

                                      = 24 squared centimeters

ii. area of a rectangular surface 2 = 3 * 2

                                                 = 6

area of its rectangular sides 2 = 2 * 6

                                     = 12 squared centimeters

Therefore,

its lateral surface area = 24 + 12

                                     = 36 squared centimeters

The lateral surface area of the prism is 36 squared centimeters.

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The correct answer is results of the memory test.

Given that,

Dr. Huang asked the healthy volunteers in a group to read a chapter for an hour. The other half of the attendees spent 15 minutes studying. Dr. Huang next asked participants to recall specifics from the paragraph in a test.

To find :what was the dependent variable ?

It is something on which other elements depend. The test score for a instance, may be the dependent variable because it could vary based on a number of variables, including how much you studied, how much sleep you got the night before the test, and even how hungry you were.

Therefore, the correct answer is results of the memory test.

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Both equations in a system of linear equations have y-intercepts at (0,2) but it is not possible for this system to have only one solution because it depends on another point as well. Option C

A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation.

Given :Both equations in a system of linear equations have y-intercepts at (0,2).

The following steps can be used in order to determine the system have only one solution or not:

According to the given data, both equations in a system of linear equations have y-intercepts at (0,2).

The equation of a line is given by: [tex]\frac{y-y_{1} }{x-x_{1} } = \frac{y_{2} - y_{1} }{x_{2} -x_{1} }[/tex]

From the above steps, it can be concluded that it does not say that the system to have only one solution because it depends on another point as well.

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