need some help on these questions

Answer:

There is not enough evidence suggesting that the mean processing time exceeds 2 minutes.

Step-by-step explanation:

The hypothesis can be defined as follows:

H₀: The mean processing time is 2 minutes, i.e. μ = 2.

Hₐ: The mean processing time exceeds 2 minutes, i.e. μ > 2.

The significance level of the test is, α = 0.05.

Recorded Time (x)        (x - μ)          + Ranks             -Ranks

        1.4                          -0.6                                           8

        2.1                            0.1                   1

        1.9                           -0.1                                           1

        1.7                           -0.3                                          6

       2.4                            0.4                  7

       2.9                            0.9                10

       1.8                            -0.2                                          4

       1.9                            -0.1                                           1

       2.6                            0.6                 8

       2.2                            0.2                 4

    TOTAL                                              30                    20

Sum of +Ranks = 30

Sum of -Ranks = 20

Test statistic = Min (∑+Ranks, ∑-Ranks)

                     = Min (30, 20)

                     = 20

Compute the critical value using the Wilcoxon Signed-rank test table.

Critical value = 11

As the test statistic value is more than the critical value, the null hypothesis was failed to be rejected.

Thus, there is not enough evidence suggesting that the mean processing time exceeds 2 minutes.

Answer:

C

Step-by-step explanation:

Given:

The problem is 154 × 13.

To find:

The solution using the multiplication standard algorithm.

Solution:

In the multiplication standard algorithm, we use partial product to solve the multiplication problem.

Using multiplication standard algorithm, the given problem can be written and solve as

      1     5    4

      ×    1     3

----------------------

      4     6    2               (Multiply 154 by 3)

1     5      4    ×              (Multiply 154 by 1)

----------------------

2     0     0     2            (Adding 462 and 154)

------------------------

Therefore, the value of 154 × 13 is 2002.

The other point through which a line that describes a proportional relationship must pass is the point (0, 0)

A proportional relationship is one in which each the ratio of the x and y–values of each point on the line of the function is a constant.

The given relationship described by the line = A proportional relationship

The given point on the line = (6, 2)

Required; The other point through which the line must pass.

Given that the relationship described by the line, the ratio of all points on the line is a constant and each point (x, y) can be expressed in the form;

y = K•x

Which gives;

\( \displaystyle{ K = \frac{y}{x} }\)

Where, K is a constant which is not equal to zero.

From the zero product property, which states that the product of all numbers and zero is also zero, we have;

When x = 0, k × 0 = 0 = y

A point through the line must pass is therefore; (0, 0)

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Answer:

560,000

Step-by-step explanation:

5.6 * 100,000 = 560,000

Answer:

560,000

Step-by-step explanation:

Answer:

$54,576

Step-by-step explanation:

When you evaluate \(3(\frac{4}{5})\) you will have \(\frac{12}{5}\)

In this exercise, you're required to evaluate the given whole number and fraction \(3(\frac{4}{5})\)

First of all, you will notice that there is a bracket which signifies multiplication. Therefore, we would open up the bracket by multiplying the two numbers.

Opening the bracket;

\(3 * \frac{4}{5}\)

Multiplying the whole number by the numerator;

\(3(\frac{4}{5}) = \frac{12}{5}\)

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The y-intercept of the line representing Beatrice's monthly music is 20

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

y = -.95x + 20

To calculate the y-intercept of the line, we set x = 0

So, we have

y = -.95 * 0 + 20

Evaluate

y = 20

Hence, the y-intercept of the line representing Beatrice's monthly music is 20

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Question

What is the y-intercept of the line representing Beatrice's monthly music subscription bill as a function of the number of songs she downloaded?

The equation is y = -.95x + 20

Answer:

2

Step-by-step explanation:

The equation has 2 terms in it which means 2 is the answer.

The answer is A since it specifies that the set is [4, -1} in interval notation. Set identification is frequently done with curly brackets.

A set is a type of mathematical representation of several different types of objects. The components or concepts that make up a set can be any kind of mathematical object. the use of signs, number, lines, other geometrical shapes, positions in space, variable, and even other values. A proposition is a structured collection of elements that can be stated as a list or perhaps a proposition builder in mathematics. Set identification is frequently done with curly brackets. An example of a set is A = 1, 2, 3, and 4. A set is just a collection of goods that are displayed together. Members or elements of a set are the things that make it up. Any item may make up a set's components, but for practical purposes .

given

According to a number line representation,

the set is [4, -1} ,

where -4 is a part of set B and 1 is not a part of set A.

The answer is A since it specifies that the set is [4, -1} in interval notation.

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The complete question is :- Use Graphs To Find The Set. (-9, 1) Intersection [-4, 4] Select The Correct Choice Below And, If Necessary, Fill In The Answer Box To complete your choice.

A. The set is |_| (Type your answer in interval notation.)

b. The set is an empty .

a) -32.06 (To the nearest hundredth)

b) -37.7 (To the nearest tenth)

c) 3.1 (To the nearest tenth)

d) 5.86  (To the nearest hundredth)

f) -4.33  (To the nearest hundredth)

g) 11.44  (To the nearest hundredth)

h) 62x + 45 = 38x + 79

i) 46y - 18 = -37y

An equation is a mathematical statement that asserts the equality of two expressions. It consists of two expressions separated by an equal sign (=), and shows the relationship between the variables present in the equation. Equations are used to model real-world problems and find solutions to various mathematical problems.

They can be solved for a specific variable by using various mathematical methods and techniques.

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Answer:

x = -3

Step 1: Rearrange Terms

-7x + 4=25

Step 2: Subtract 4 From Both Sides Of The Equation.

-7x + 4-4 = 25 -4

Step 3: Simplify

Subtract the numbers

-7x = 21

Step 4: Divide both sides of the equation by the same term.

-7x/-7 = 21/-7

Step 5 : Simplify

Cancel terms that are in both the numerator and denominator

-7x/-7=x

Divide Now

x=-3

I HOPE U HAVE A GOOD DAY TODAY HEAR YA GO KID IM IN CLASS RN LOL CYA!

Step-by-step explanation:

In March (2) and July (3) , there are a total of 5 flower symbols

    each symbol represents THREE flowers  = 15 flowers  ( March + July)

May has 7 flower symbols = 21 flowers

21 -15 = 6 fewer flowers

Answer:

a. \((1,0.25)\)

b. \(y = 0.25x\)

Step-by-step explanation:

Given

The data in the table

Solving (a): The coordinate that represents the unit rate

The unit rate is when its 1 pound

This is so because the unit rate is dollars per pounds.

Hence, the coordinate is \((1,0.25)\)

Solving (b): Equation of the graph

First, we calculate the slope (m)

\(m = \frac{y_2 - y_1}{x_2 - x_1}\)

Where:

\((x_1,y_1) = (1,0.25)\)

\((x_2,y_2) = (4,1.00)\)

\(m = \frac{y_2 - y_1}{x_2 - x_1}\)

\(m = \frac{1.00 - 0.25}{4 - 1}\)

\(m = \frac{0.75}{3}\)

\(m = 0.25\)

The equation is then calculated as thus:

\(y - y_1 = m(x - x_1)\)

This gives:

\(y - 0.25 = 0.25(x - 1)\)

\(y - 0.25 = 0.25x - 0.25\)

Make y the subject

\(y = 0.25x\)

Hence, the equation of the graph is: \(y = 0.25x\)

The cost per pound of rib steak is $2.40 and the cost per pound of hamburger meat is $1.25.

To find the cost per pound of each type of meat, we can set up a system of equations based on the given information.

Let's denote the cost per pound of rib steak as 'x' and the cost per pound of hamburger meat as 'y'.

From the first statement, we know that:

2x + 6y = 12.30 ---(Equation 1)

From the second statement, we know that:

3x + 2y = 9.70 ---(Equation 2)

Now we can solve this system of equations to find the values of 'x' and 'y'.

Multiplying Equation 1 by 3 and Equation 2 by 2 to eliminate the 'x' term, we get:

6x + 18y = 36.90 ---(Equation 3)

6x + 4y = 19.40 ---(Equation 4)

Subtracting Equation 4 from Equation 3, we get:

14y = 17.50

Dividing both sides by 14, we find:

y = 1.25

Substituting the value of 'y' back into Equation 1, we can solve for 'x':

2x + 6(1.25) = 12.30

2x + 7.50 = 12.30

2x = 4.80

x = 2.40

Therefore, the cost per pound of rib steak is $2.40 and the cost per pound of hamburger meat is $1.25.

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The slopes are best approximated as: The slopes are approximately -1.7, 0, and 1.7.

The formula to find the slope between two coordinates is expressed as:

Slope = (y₂ - y₁)/(x₂ - x₁)

The slope of each line above the x-axis are:

Slope 1 = (5 - 0)/(5 - 8)

Slope 1 = -1.7

Slope 2 = (5 - 5)/(5 - (-2))

Slope 2 = 0

Slope 3 = (5 - 0)/(-2 - (-5))

Slope 3 = 5/3 = 1.7

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Answer:

k = 2

Step-by-step explanation:

-8k + 6 = -10k + 10

-8k = -10k +4

2k = +4

2k / 2 = 4 / 2

k = 2

Histograms are used to represent data, where the length of each bar represents the frequency of the data element

The histogram is not given; So, I will give a general explanation.

Assume that the number of commuters that travel more than 45 minutes is 450, while the total number of commuters surveyed is 500.

The percentage of commuters that travel more than 45 minutes is the quotient of the commuters that travel more than 45 minutes and the total number of surveyed commuters.

So, we have:

\(\%Percentage = \frac{450}{500}\)

Divide 450 by 500

\(\%Percentage = 0.9\)

Express as percentage

\(\%Percentage = 90\%\)

Hence, the percentage of commuters that travel more than 45 minutes is 90%

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Answer:

The graph will shift 5 units to the left

Answer:

  5/10

Step-by-step explanation:

An equivalent fraction will have the numerator and denominator multiplied by the same value.

The denominator of 2 must be multiplied by 5 to get a denominator of 10. Then the equivalent fraction is ...

  \(\dfrac{1}{2}=\dfrac{1}{2}\cdot\dfrac{5}{5}=\dfrac{1\cdot5}{2\cdot5}=\boxed{\dfrac{5}{10}}\)

There are 21 possible ways that Jane can win a prize by drawing two red marbles from the pot.

Jane wants to win a prize by drawing two red marbles from a pot containing seven marbles. She can do this in several ways. However, we will solve the problem by using the combination formula.The combination formula gives us the number of possible ways to choose r items from a group of n items without considering the order.

The formula is given by:\(C(n,r) = n! / r!(n-r)!\)where n is the total number of items and r is the number of items to be selected.To solve Jane's problem, we will find the number of possible ways to choose two red marbles from seven marbles. The number of red marbles in the pot is not given;

we assume that all marbles in the pot are of different colors.Since Jane wants to draw two red marbles, we will consider only the red marbles. We have to find the number of combinations of two red marbles from the total number of red marbles in the pot.

Therefore, n = total number of red marbles in the pot and r = 2 (the number of red marbles to be selected).Thus, using the combination formula;\(C(n,r) = n! / r!(n-r)!C(n,2) = n! / 2!(n-2)!\)We have n = total number of red marbles in the pot = \(7C(n,2) = 7! / 2!(7-2)!C(n,2) = 7! / 2!5!C(n,2) = (7 x 6 x 5!)/ (2!5!)C(n,2) = 21\).

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Answer:

0.306

Step-by-step explanation:

Using binomial probability,

\(\binom{9}{2}(3/13)^2 (10/13)^7 \approx 0.306\)

Pamela would have to run approximately 4.29 hours to catch up with Tony.

To determine how long Pamela would have to run to catch up with Tony, we need to find the time it takes for Pamela to cover the distance Tony covered during the 15 hours he had already been traveling.

Since Tony traveled at a constant speed of 2 mph for 15 hours, the distance he covered is given by:

Distance = Speed * Time

Distance = 2 mph * 15 hours

Distance = 30 miles

Now, Pamela wants to catch up with Tony, so she needs to cover the same distance of 30 miles. Pamela runs at a speed of 7 mph.

To find the time it takes for Pamela to cover the distance of 30 miles, we can use the formula:

Time = Distance / Speed

Time = 30 miles / 7 mph

Using division, we find:

Time ≈ 4.29 hours

Therefore, Pamela would have to run approximately 4.29 hours to catch up with Tony.

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Answer:

1/2

Step-by-step explanation:

11/3 divided by 2/3

=5.5

11/3 divided by 2/3 , the quotient is 5 and remainder is 1.

The divisor is the integer that divides a given number. The resultant number is sometimes referred to as the quotient. The residual is the number that the divisor leaves after partially dividing the original integer.

Let,  first number is x and second number is y

On dividing given two number

Division=x/y

\(x/y=\frac{11/3}{2/3}\)

\(x/y=11/2\)

It is given that the quotient for dividing two numbers is 5.

Using,

Dividend = Divisor x Quotient + Remainder

Here,

Dividend =11

Divisor =2

Quotient =5

On, substituting these values to get Remainder

11=2 x 5+ Remainder

Remainder=1

Thus, remainder is 1.

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Answer:

2m by 15m

Step-by-step explanation:

Form a system of equations where x is the length and y is the width.

Area: xy=30

Perimeter: 2x+2y=34

x=2, y=15 (solve by substitution)

Answer:

Correct numbers, wrong format

Step-by-step explanation:

Remember the figure is continuous so it should be written as an inequality:

D:(-7<x<-1)

R:(-6<x<-3)

Answer:

3.4 and 2.5

Step-by-step explanation:

Answer: 3.4 and 2.5

Step-by-step explanation:

Step-by-step explanation:

what kind of industries can be run in local level?