A company wants to estimate the mean time it will take workers to complete a certain task. They record the times to complete the task for a random sample of 30 workers. Match the following: ____ mean time to complete a certain task for 30 workers from this company ____ all workers from this company ____ a worker from this company ____ mean time to complete a certain task for all workers from this company ____ 30 workers from this company
____ time to complete a certain task
a. sample
b. parameter
c. individual
d. variable
e. statistic
f. population

The required volume of concrete in cubic yards to make the sidewalk is 124.4444 yards³

The unitary method is a method in which you find the value of a unit and then the value of a required number of units.

Given here: Dimensions of the side walk 4 ft. 140 and 6 feet.

We know the volume of the rectangular cuboid side walk will be given by

V= 4×140×6

 =3360 ft³

Thus the volume of concrete that will be required to make the side walk is 3360 ft³

In yards³ we know

1 cubic foot= 0.037037 yards cube

∴  3360ft³=124.4444 yards³

Hence, The required volume of concrete in cubic yards to make the sidewalk is 124.4444 yards³

Learn more about the unitary method here:

https://brainly.com/question/22056199

#SPJ1

Thw given statement " Accounting systems are important because they are a primary source of information for managers" is true.

Two categories of accounting systems exist: In the first, a small business uses a single entry system to log each transaction as a line item in a ledger. The alternative is a double entry system, in which each transaction is entered in two different accounts as both a debit and a credit.

Accounting systems are crucial since they serve as managers' main informational resource. The accounting system is likely to provide the information that is needed for many, if not most, decisions. Whether the accounting system is giving managers access to the "best" information is our main concern.

Learn more about managers at:

https://brainly.com/question/24553900

#SPJ1

complete question:

TRUE OR FALSE Accounting systems are important because they are a primary source of information for managers.

Answer:

To find out how much it would cost Suzie to lay the flooring so it fully covers the floor of room, you need to know the area of the room's floor and the cost per square foot of the flooring.

If the flooring will cost $2 per square foot, and if the area of the room's floor is x square feet. Then the total cost will be $2x.

Without knowing the area of the room's floor, it is impossible to determine the cost of the flooring.

Step-by-step explanation:

115 its rhe reuth i rhibk lol

Answer:

To find the cost of a hot dog and hamburger, we can set up a system of equations based on the information given. For example, let x be the cost of a hot dog and y be the cost of a hamburger. Then we have:

4x + 7y = 68 (equation 1)

7x + 3y = 67 (equation 2)

We can use substitution or elimination methods to solve the system of equations.

Substitution method:

Solve equation 1 for y in terms of x: y = (68 - 4x)/7

Substitute this expression into equation 2: 7x + 3((68 - 4x)/7) = 67

Simplifying and solving for x: 7x + 3(68 - 4x)/7 = 67

7x + 204 - 12x = 469

-5x = -401

x = 80

Substitute x = 80 back into equation 1: 4(80) + 7y = 68

320 + 7y = 68

7y = -252

y = -36

Therefore, the cost of a hot dog is $80, and the price of a hamburger is $-36 (which is not possible, it could be a typo or mistake in the given information)

Step-by-step explanation:

Answer:

0.571428571

Step-by-step explanation:

To find the sum of two fractions with different denominators, a common denominator must be found.

In this case, the two in the denominator must be multiplied to make it 14.

14/2 = 7, so multiply 2 by 7 to get 14, and what you do to the bottom you must do to the top, so 1 * 7 = 7.

Now, your two fractions are 7/14 and 1/14. Add the numerators as the denominators are equal.

7+1 = 8

8/14 is the sum, which can be divided by 2 on the top and bottom to simplify.

8/2 = 4, and 14/2 = 7

4/7

Answer:

-5

30x6=5

5 and convert to negative -5

Evaluating the composition of functions in x = 1 gives:

f(g(1)) = 28

Here we have the two functions:

f(x) = 4x

g(x) = 2x + 5

And we want to find to find the composition f(g(x)), we will get:

f(g(x)) = 4*g(x)

Replacing g(x) there we will get:

f(g(x)) = 4*(2x + 5)

         = 8x + 20

Now we can evaluate that in x = 1, then we will get:

f(g(1)) = 8*1 + 20 = 28

That is what we wanted to find.

Learn more about composition of functions:

https://brainly.com/question/10687170

#SPJ1

The equation y^2+4y represents a parabola that is open upward. The general form of a quadratic function is y = ax^2 + bx + c.

In this case, the coefficient of the x^2 term is 1, the coefficient of the x term is 4, and the constant term is 0.

This equation can be factored as y(y+4) = 0.

This equation is satisfied by y = 0 and y = -4.

Therefore, the solutions of y^2+4y = 0 are y = 0 and y = -4.

Answer:

62.8 trillion

Step-by-step explanation:

Records are made to be broken. In 2019, we calculated 31.4 trillion digits of π — a world record at the time. Then, in 2021, scientists at the University of Applied Sciences of the Grisons calculated another 31.4 trillion digits of the constant, bringing the total up to 62.8 trillion decimal places

Answer:

Step-by-step explanation:The following are the trial balance and other information related to Soft Tech, a

consulting engineer.

Soft Tech, Consulting Engineer

Trial Balance

December 31, 2022

Debit Credit

Cash Br. 59,000

Accounts Receivable 99,200

Allowance for Doubtful Accounts Br. 1,500

Supplies 3,920

Prepaid Insurance 2,200

Equipment 50,000

Accumulated Depreciation—Equipment 12,500

Notes Payable 14,400

Share, Capital 104,020

Dividend 34,000

Service Revenue 200,000

Rent Expense 19,500

Salaries and Wages Expense 61,000

Utilities Expense 2,160

Office Expense 1,440

Br. 332,420 Br. 332,420

Other data:

1. Fees received in advance from clients Br.12,000.

2. Services performed for clients that were not recorded by December 31,

Br.9,800.

3. Bad debt expense for the year is Br.2,860.

4. Insurance expired during the year Br.960.

5. Equipment is being depreciated at 10% per year.

6. Fine Tech gave the bank a 90-day, 10% note for Br.14,400 on December 1,

2022.

7. Rent of the building is Br.1,500 per month. The rent for 2022 has been

paid, as has that for January 2023.

8. Salaries and wages earned but unpaid December 31, 2022, Br.5,020.

After taking the random sample, the following has the mean sample of (c) the sampling distribution of the sample mean.

A random sample is a group of people chosen at random, all with the same probability, from a larger group of people as mentionedinstatistics. It makes sure that the results you get from your sample should be close to what you would have gotten if you measured the entire population.

All units in the population have an equal chance of being chosen using the simplest random sample. Sampling should completely eliminate any signs of bias. Every person in the big population set has the same chance of being chosen because the people who make up the subset of the bigger group are selected at random.

To learn more about statistics: https://brainly.com/question/15525560

#SPJ4

Answer: they are stilling your money

Step-by-step explanation:

Answer:

23

Step-by-step explanation:

because consecutive integers, that means each one is longer than the previous one

length 1= x

length 2 = x+1

length 3 = x+2

length 4 = x+3

so 4x+6 =86

x = 20

longest =20+3 =23

The lower bound of the 90% confidence interval for the population mean is 44.3.

To calculate the lower bound of the 90% confidence interval for the population mean, we will use the formula:

Lower bound = sample mean - (1.645 * (standard deviation / square root of sample size))

Calculate the sample mean:

Sample mean = (42.3 + 59.2 + 45.4 + 55.8 + 49.0 + 39.7 + 56.2 + 54.6 + 45.8 + 60.6 + 55.7 + 46.1 + 58.3 + 44.4) / 14 = 51.09

Calculate the sample standard deviation:

Sample standard deviation = √(((42.3 - 51.09)2 + (59.2 - 51.09)2 + (45.4 - 51.09)2 + (55.8 - 51.09)2 + (49.0 - 51.09)2 + (39.7 - 51.09)2 + (56.2 - 51.09)2 + (54.6 - 51.09)2 + (45.8 - 51.09)2 + (60.6 - 51.09)2 + (55.7 - 51.09)2 + (46.1 - 51.09)2 + (58.3 - 51.09)2 + (44.4 - 51.09)2) / 13) = 8.37

Calculate the lower bound:

Lower bound = 51.09 - (1.645 * (8.37 / √14)) = 44.3

Learn more about the confidence interval:

https://brainly.com/question/20309162

#SPJ4

Answer:

y = 5

Step-by-step explanation:

3y - 7 = 8  Add 7 to both sides

3y - 7 + 7 = 8 + 7

3y = 15  Divide both sides by 3

y = 5

The value of the variable x is 11

From the information given, the segment is from N - K

We have the midpoints as; NM, ML, LK

This is represented as;

NM + ML + LK = NK

Substitute the values, we get

x - 6 + 9 + 2x - 19 = 23

collect like terms, we get;

x + 2x = 23 +6 - 9 + 19

add or subtract the like terms

3x = 42 - 9

3x = 33

Now, make 'x' the subject of formula by dividing both sides by the coefficient of x, we get;

3x/3 = 33/3

Divide the values

x = 11

Hence, the value is 11

Learn about line segments on:

https://brainly.com/question/17374569

#SPJ1

Therefore , the solution of the given problem of slope comes out to be

line's equation is y =.1333 x + 1.55.

A line's steepness can be determined by looking at its slope. Slope is calculated mathematically as "rise over run" (change in y divided by change in x).If you look at the line from left to right, a line that is moving up will have a positive slope and a line that is moving down will have a negative slope.

Here,

Given : f(x) =4 +x

The line's "intercept" of the y-axis marks the location of the y-intercept. It also makes sense because a player with a 25 cm heel to toe measurement is about 1.55 metres tall. This is most likely.

Any line has the equation y=mx+b (m=slope, b=y-intercept).

Finding two spots on this line where it crosses will reveal the slope of the line. I'll use the numbers (25.5, 1.6) and (26.25,1.7).

=> (y(2)-y(1)) / (x(2)-x(1))

=> m 1.7 - 1.6 / 26.25 - 25.5

=>.1/.75 =.13333 is the formula to calculate the slope.

At roughly 1.55m, this line crosses the y-intercept.

This line's equation is y =.1333 x + 1.55.

To learn more about slope, refer to:

brainly.com/question/3493733

#SPJ1

The measure of angle t is (d) 103 degrees

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

The triangle

Using the law of cosines, we have the following equation:

t² = x² + y² - 2xy * cos(T)

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

44² = 32² + 24² - 2 * 24 * 32 * cos(T)

Evaluate the products and exponents

1936 = 1600 - 1536 * cos(T)

So, we have

cos(T) = -336/1536

Divide

cos(T) = -0.21875

Take the arccos of both sides

T = 103

Hence, the angle is 103 degrees

Read more about angles at

https://brainly.com/question/25215131

#SPJ1

The measure of the length of u for the condition is  1560 inches (approx).

The law of sines specifies how many sides there are in a triangle and how their individual sine angles are equal. The sine law, sine rule, and sine formula are additional names for the sine law.

The side or unknown angle of an oblique triangle is found using the law of sine. Any triangle that is not a right triangle is referred to as an oblique triangle.

Given ΔTUV

t = 820 inches

∠U = 132°

∠V = 25°

and ∠T = 180 - 132 - 25

∠T = 23°

so according to the law of sines

[tex]\frac{SinT}{t} = \frac{SinU}{u}= \frac{SinV}{v}[/tex]

so u = t*(SinU/SinT)

u = 820(Sin132/sin23)

u = 820(1.9019)

u = 1559.58 inches = 1560 inches (approx)

Hence the value of u is 1560 inches (approx).

Learn more about laws of sines;

https://brainly.com/question/17289163

#SPJ1

According to the problem Brad will need 28.27 feet of edging to enclose his flower garden.

Edging in math is a technique that involves finding the maximum or minimum value of a function. It is typically used to optimize or increase the performance of a particular solution. In other words, edging is a process by which a function is “reduced” to its most efficient form. For example, a function that is non-linear can be “edged” to become more linear, thereby increasing its efficiency. Additionally, edging can be used to identify certain features within a solution, such as local maximums or minimums. Edging is an important tool in math, and it can be used in a variety of different applications, from optimization to data analysis.

Brad will need 28.27 feet of edging to enclose his flower garden. This is because the circumference of a circle is equal to 2πr, where r is the radius. Therefore, the circumference of Brad's flower garden with a radius of 4.5 feet is 28.27 feet.

To learn more about edging

https://brainly.com/question/22735873

#SPJ1

Step-by-step explanation:

The y-intercept of a function can be found by looking at the point where the x-coordinate is 0. In this case, the y-intercept of the function is -3, as the point (0,-3) is on the graph.

The slope of a function can be found by looking at the change in y divided by the change in x between two points on the graph. In this case, we can use the points (0,-3) and (1,-1) to find the slope. The change in y is -1 - (-3) = 2 and the change in x is 1 - 0 = 1. So the slope is 2/1 = 2.

Therefore, the equation of the function can be written in slope-intercept form as y = mx + b, where m is the slope and b is the y-intercept. So the equation of the function is:

y = 2x - 3

It's the equation of a line that pass through (0,-3) and (1,-1) and (2,1) and (3,3) and (4,5)

Answer: Curved surface!

Step-by-step explanation:

Answer:

curved surface:) good luck in school guys!

Step-by-step explanation:

Answer:

Let's call the original number of dollar bills Mother had "d". Each child received d/5 + 3 dollars.

Since each child received $14, we have:

d/5 + 3 = 14

Multiplying both sides by 5, we get:

d + 15 = 70

Subtracting 15 from both sides, we get:

d = 55

So, Mother had 55 dollar bills in her wallet.

Using a left-hand approximation means that we will use the left endpoint of each interval to approximate the area under the curve.

a) Using 4 boxes:

The interval from 0 to 2 can be divided into 4 equal parts, so each part has a length of 0.5.

The height of each box will be the value of y at the left endpoint of each interval.

The area of each box can be calculated as follows:

For the first box, the left endpoint is (0, 1) and the height is 2(0) + 1 = 1. The area is 0.5 * 1 = 0.5.

For the second box, the left endpoint is (0.5, 2) and the height is 2(0.5) + 1 = 2.5. The area is 0.5 * 2.5 = 1.25.

For the third box, the left endpoint is (1, 3) and the height is 2(1) + 1 = 3. The area is 0.5 * 3 = 1.5.

For the fourth box, the left endpoint is (1.5, 4) and the height is 2(1.5) + 1 = 4.5. The area is 0.5 * 4.5 = 2.25.

The total area is the sum of the areas of all the boxes, so the total area is 0.5 + 1.25 + 1.5 + 2.25 = 5.

b) Using 8 boxes:

The interval from 0 to 2 can be divided into 8 equal parts, so each part has a length of 0.25.

The height of each box will be the value of y at the left endpoint of each interval.

The area of each box can be calculated as follows:

For the first box, the left endpoint is (0, 1) and the height is 2(0) + 1 = 1. The area is 0.25 * 1 = 0.25.

For the second box, the left endpoint is (0.25, 2.5) and the height is 2(0.25) + 1 = 2.5. The area is 0.25 * 2.5 = 0.625.

For the third box, the left endpoint is (0.5, 3) and the height is 2(0.5) + 1 = 3. The area is 0.25 * 3 = 0.75.

And so on, for all 8 boxes.

The total area is the sum of the areas of all the boxes, so the total area is 0.25 + 0.625 + 0.75 + ... + 3.375 = 5.125.

So, the area between the x-axis and the curve y = 2x + 1 on the interval (0, 2) can be approximated as 5 or 5.125 depending on the number of boxes used.

To learn more about linear graphs:

https://brainly.com/question/14323743

#SPJ4

The percentile of the top students will be 88%.

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

The admissions index score is used to set eligibility standards intended to meet the goal of admitting the top 12% of high school students in the state.

The percentile of the top student is given as,

⇒ 100% - 12%

⇒ 88%

The percentile of the top students will be 88%.

More about the percentage link is given below.

https://brainly.com/question/8011401

#SPJ1

The statement is false the expression √3x is equivalent to the expression x√3.

A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:

let us check by an example put the value of x = 3

√3x = x√3.

and, √3 x 3  = 3√3

and, √9 ≠ 3√3

Here we can see that the two values are not equal.

Thus, the statement is false the expression √3x is equivalent to the expression x√3.

Learn more about Expression here:

brainly.com/question/723406

#SPJ1

Answer:

2x + 9

Step-by-step explanation:

The solution to the function's operation of h(x) is -0.25x + 2.

A function connects an element x to an element f(x) also known as (y) in another set. The domain of a function refers to the x-values and the range of the function is the set of values of f(x)  i.e. (the y-values) that are produced by the values in the domain of the function, which is the set of values of x.

Given that:

f(x) = 0.25x - 2

h(x) -f(x)

We are going to simply replace the value of f(x) with h(x), i.e.

h(x) = -(0.25x - 2)

h(x) = -0.25x + 2

Therefore, we can conclude that the solution to the function's operation of h(x) is -0.25x + 2.

Learn more about solving functions operations here:

https://brainly.com/question/10439235

#SPJ1

Answer: The answer is B

Step-by-step explanation:

( 2 + 2 ) divided by ( 5 + 4)  is the same as 4/9 which is also the same as 2/9 + 2/9 which equals 4/9.