Which is the graph of x - y = 1?

Time = 270 mins = 4 hr. 30 mins = 4½ hr.

distance = 63 miles

thus, speed = distance travelled / time taken

speed = 63/(4½) miles per hr

speed = 14 miles per hr.

pls mark this as brainliest.

If 250 Bell laptops are to be produced, then 250 hard drives will be required.

According to the product structure tree for Bell laptops on page 4 of the lecture materials on Master Scheduling and Bill of Materials, the total number of hard drives (01-hdrive) required to produce 250 Bell laptops is 250.Each Bell laptop requires one hard drive to be produced.

Therefore, if 250 Bell laptops are to be produced, then 250 hard drives will be required.

This can be seen in the product structure tree where the hard drive is a sub-assembly of the Bell laptop, and each Bell laptop requires exactly one hard drive. The product structure tree also shows that each hard drive requires a number of components to be produced, such as a hard drive case, a circuit board, and a motor.

These components are also shown as sub-assemblies of the hard drive.

Overall, the product structure tree is a useful tool for understanding the relationships between the components and sub-assemblies that are required to produce a finished product. It provides a detailed breakdown of the product structure, which is essential for effective production planning and scheduling.

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Answer:

Step-by-step explanation:

1.04

.86

.92

Based on the chi-square test, there is no significant evidence to suggest that the die is not balanced.

We have,

To determine if the die is balanced, we can perform a chi-square test of goodness of fit.

The null hypothesis is that the die is balanced, and the alternative hypothesis is that the die is not balanced.

First, let's calculate the expected frequencies for each outcome assuming the die is balanced. Since there are 180 tosses in total, each outcome is expected to have an equal probability of 1/6.

Expected frequency for each outcome

= (Total tosses) x (Probability of each outcome)

Expected frequency for each outcome = (180) x (1/6)

Expected frequency for each outcome = 30

Now, we can calculate the chi-square test statistic using the formula:

χ² = Σ [(Observed frequency - Expected frequency)² / Expected frequency]

Let's calculate the chi-square test statistic:

χ² = [(28 - 30)² / 30] + [(36 - 30)² / 30] + [(36 - 30)² / 30] + [(30 - 30)² / 30] + [(27 - 30)² / 30] + [(23 - 30)² / 30]

χ² = [(-2)² / 30] + [(6)² / 30] + [(6)² / 30] + [(0)² / 30] + [(-3)² / 30] + [(7)² / 30]

χ² = 4/30 + 36/30 + 36/30 + 0/30 + 9/30 + 49/30

χ² = 134/30

χ² ≈ 4.467

Next, we need to compare the calculated chi-square value to the critical chi-square value at a significance level of 0.01 and degrees of freedom equal to the number of outcomes minus 1 (6 - 1 = 5).

Looking up the critical chi-square value in a chi-square distribution table with 5 degrees of freedom and a significance level of 0.01, we find it to be approximately 15.086.

Since the calculated chi-square value (4.467) is less than the critical chi-square value (15.086), we fail to reject the null hypothesis.

Therefore, we do not have sufficient evidence to conclude that the die is not balanced at a 0.01 level of significance.

Thus,

Based on the chi-square test, there is no significant evidence to suggest that the die is not balanced.

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Answer:

Option A. x < -4

Step-by-step explanation:

The given function is f(x) = -(x + 6)(x + 2)

General form of the function will be,

f(x) = -(x² + 2x + 6x + 12)

     = -(x² + 8x + 12)

Vertex form of the function will be,

f(x) = -[x² + 2(4)x + 12]

     = -[(x² + 2(4)x + 16) - 16 + 12]

     = -(x + 4)² + 4

Therefore, parabola for the function above will open down with vertex (-4, 4) as shown in the graph attached.

Graph shows the function is increasing in x < -4 and decreasing in x > -4.

Therefore, Option A. is the correct answer.

Hi, this question is actually really simple.

Let's consider that one house = 7 matchsticks. This is because, if we count the first two squares given in your question, it will count to 7.

Now we understood that one house has 7 matchsticks. So, if we want two houses, then consider two more square of matchsticks. So, 12. Likewise, for 3 houses , add 2 more squares, thus resulting in 17. For four houses, again add 2 more squares, giving the result as 22 matchsticks.

Note- While adding two more squares for each, do not count the left side 2 matchsticks, as they are combined with the previous matchsticks. I meant that , if you want to know 2nd house matchsticks, count 7+7=14, then subtract 14-2, so 12

Now, the brief answer is:-

1 house = 7 matchsticks

2 houses = 12 matchsticks

3 houses = 17 matchsticks

4 houses = 22 matchsticks

5 houses = 27 matchsticks

Hope it helps you...

(Answered by Benjemin)

Answer:

2=14

3=21

4=28

5=35

Step-by-step explanation:

If 1 house =7 matchsticks

Then 2 houses = x

x=2×7=14 matchsticks

If 2 houses=14 matchsticks

3 houses=x

2x=14×3

Dividing both sides by 2

x=7×3=21

4=28

5=35

Hope it helps

Answer:

- 40h + 616

Step-by-step explanation:

8(69 - 5h + 8)

8(69) - 8(5h) + 8(8)

552 - 40h + 64

-40h + 616

Answer:

y = 0.

Step-by-step explanation:

The x intercept is the point where the line crosses the x axis. At this point y = 0. ... To find the x intercept set y = 0.

If a is directly proportional to m and n, and inversely proportional to y, we can express this relationship mathematically as:

a ∝ m * n / yy.

when m = 4, n = 4, and y = 5, a is equal to 3.2.

If a is directly proportional to m and n, and inversely proportional to y, we can express this relationship mathematically as:

a ∝ m * n / yy

where ∝ means "is proportional to". We can introduce a constant of proportionality, k, such that:

a = k * m * n / y

To find the value of k, we can use the initial conditions:

a = 9 when m = 16, n = 9, and y = 3

Substituting these values, we get:

9 = k * 16 * 9 / 3

Simplifying, we get:

k = 1

Therefore, the relationship between a, m, n, and y is:

a = m * n / y

To find a when m = 4, n = 4, and y = 5, we can substitute these values into the equation:

a = 4 * 4 / 5

Simplifying, we get:

a = 3.2

Therefore, when m = 4, n = 4, and y = 5, a is equal to 3.2.

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The best interpretation of the calculated 90% confidence paired-t interval (0.887, 7.493) is:

We are 90% confident that the average difference in the cholesterol levels of the patients sampled is between 0.887 and 7.493.

Option 2 is the correct answer.

The best interpretation of the given 90% confidence paired-t interval is option 2) We are 90% confident that the average difference in the cholesterol levels of the patients sampled is between 0.887 and 7.493.

This interval gives us an estimate of the range of plausible values for the true population mean difference in cholesterol levels before and after administering the drug.

The interval indicates that we are 90% confident that the true mean difference in cholesterol levels falls between 0.887 and 7.493 mg/dL.

Option 2 is the correct answer.

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Let's solve your equation step-by-step.

2x2−5x=7

Step 1: Subtract 7 from both sides.

2x2−5x−7=7−7

2x2−5x−7=0

2x2+−5x+−7=0

Step 2: Use quadratic formula with a=2, b=-5, c=-7.

x=−(−5)±√(−5)2−4(2)(−7)/2(2)

x=5±√81/4

Answer:

x= 7/ 2

or x=−1

the same thing

Answer:

11. D

12. C

Step-by-step explanation:

11. We need to find 2 numbers where the sum is -15 and the product is 56. Those two numbers are -7 and -8 so the answer is D.

12. Like the previous problem, we need to find 2 numbers where the sum is -9 and the product is 14. Those two numbers are -2 and -7 so the answer is C.

You can solve it by using this steps

Step-by-step explanation:

Isolate the radical on one side of the equation.Square both sides of the equation.Solve the new equation.Check the answer. Some solutions obtained may not work in the original equation.

Answer:

It's probably 12

Step-by-step explanation:

100+100=200

200+100=300 divided by 10 is 12

This statement is not true.

For a matrix B to be the inverse of a matrix A, the following two conditions must be satisfied:

AB = BA = I, where I is the identity matrix.
A and B must both be square matrices of the same size.
The equation ABI or BAI does not accurately represent the condition for matrix inversion.

Instead, it is typically written as AB = BA = I. This means that the product of matrices A and B in both orders gives the identity matrix.

This is equivalent to saying that B "undoes" the effects of A and vice versa, and thus they are inverse matrices of each other.
It is important to note that not all matrices have inverses.

A matrix is invertible (or non-singular) if and only if its determinant is not equal to zero. If a matrix is singular, it does not have an inverse.

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Answer:

Slope m = 5

Step-by-step explanation: sorry if Im wrong but If i am then it is just 5:)

Answer:

Step-by-step explanation:

The interior angles of a triangle add to 180°:a + b + c = 180°

Angles c and d make a straight angle, which is 180°:d + c = 180°

So d + c equals a + b + c:d + c = a + b + c.

Subtract c from both sides:d = a + b.

He get the approximately $67 as the amount of interest rate.

According to the statement

We have to find that the interest does Jerome earn in one year.

So, For this purpose, we know that the

A Interest is the amount paid by someone who borrows a certain amount of money.

From the given information:

Jerome deposits $3700, in a certificate of deposit that pays 1.8% interest, compounded annually. How much interest does Jerome earn in one year.

Then

The amount deposited = $3700

The interest pays by the bank = 1.8%

Amount he get by the interest rate = 1.8% of 3700

Amount he get by the interest rate = 1.8 / 100 * 3700

Amount he get by the interest rate = 0.018 * 3700

Amount he get by the interest rate = 66.6.

So, He get the approximately $67 as the amount of interest rate.

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Answer:

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

From the question the original line is

y = - ⅔x + 12

Comparing with the general equation above

Slope = -⅔

Since the lines are parallel their slope are also the same

Slope of parallel line = - ⅔

The equation of the line using point

(6, –11) and slope - ⅔ is

\(y + 11 = - \frac{2}{3} (x - 6) \\ y + 11 = - \frac{2}{3} x + 4 \\ y = - \frac{2}{3} x + 4 - 11\)

We have the final answer as

\(y = - \frac{2}{ 3 } x - 7 \\ \)

Hope this helps you

Since they need to find the weight of their suitcases to make sure they meet airline regulations. the units that they should use Kg.

Airport passengers are often needed to put only at least a single baggage any time in the check-in self-service so that the baggage can be checked and identified.

Note that the Maximum Weight per piece is said to be 50 lb/23 kg and the Maximum Dimensions is said to be 45 linear inches or 115 cm (including the length + width + height)

Therefore, Since they need to find the weight of their suitcases to make sure they meet airline regulations. the units that they should use Kg.

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See full question below

Maria and Jose, students at Mississippi Valley State University, are going to study abroad in Spain. They need to find the weight of their suitcases to make sure they meet airline regulations. What units should they use?

Given:

When we should stop counting by 5 s and start counting by 1s when telling time to the nearest minute.

Explanation:

In a clock, there are 12 numbers and 60 divisions on the face of a clock. So, we have,

1 hour = 60 minutes

The number of minutes between two consecutive numbers is 5 minutes (or divisions).

Example:

So, if the clock shows, the hour hand is in 2 and the minute hand is in 4.

Then, it means

Another example is,

So, if the clock shows, the hour hand is in 4 and the minute hand is in 8th division.

Then, it means

We should stop counting by 5s at 1 then we start counting by 1s to reach the shown division (i.e. 3rd division after 5 divisions).

Answer:

i dont know kinda weird

Step-by-step explanation:

The factor that provides the basis for the grading of newly diagnosed malignant tumours is degree of differentiation.

The level of differentiation impacts an individual's capacity to control their emotions, thoughts, individuality, and connections to others. The degree of any differential equation can be obtained when it is expressed as a polynomial; otherwise, the degree cannot be defined.

The mechanisms by which immature cells develop into mature cells with particular roles are described in biology. This indicates the degree to which tumour tissue resembles the healthy tissue from which it originated in the context of cancer. Compared to poorly or undifferentiated cancer cells, well-differentiated cancer cells resemble normal cells more and grow and spread more slowly. Tumour grading systems, which vary for each form of cancer, use differentiation.

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A(n) example is a specific case that is utilized to illustrate a broader concept, and it can take the form of factual occurrences, hypothetical scenarios, or personal experiences.

Examples operate as concrete proof that makes it easier to understand and put into practice abstract ideas. They offer concrete or fictitious examples that exemplify a broad topic, making it more straightforward for others to understand and relate to the underlying notion.

Examples make complex theories or concepts more understandable and relatable, promoting effective communication and improved comprehension across various subjects and disciplines.

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Answer:

Step-by-step explanation:

Soil nailing system is a popular method used for stabilizing deep excavations. It is a technique where reinforcing bars, known as nails, are drilled horizontally into the soil, and grouted or cemented into place. This process increases the soil's shear strength and decreases pore water pressure. Soil nailing is ideal for shallow to medium-deep excavations up to 30m depth.

The stability of deep excavations is key to preventing severe damage to adjacent buildings and infrastructures. Soil nailing is widely accepted as one of the most effective and economical solutions for this purpose. By using this technique, engineers can effectively stabilize the soil mass behind the excavation, thereby preventing failure mechanisms like sliding, overturning, and buckling.

Research has been carried out to investigate the effectiveness of soil nailing systems in stabilizing deep excavations. The results show that soil nailing is highly effective in stabilizing deep excavations, particularly when compared to other methods such as shotcrete, retaining walls, and soldier piles.

In conclusion, soil nailing is a popular and efficient method used for the stabilization of deep excavations. It provides a cost-effective solution and its effectiveness has been proven through extensive research studies. The use of soil nailing has become more widespread in recent years, due to its numerous advantages and benefits.

References:

1. Sharma A.K., Kulhawy F.H., and Wilkins M.D. (2005) Soil nailing for support of excavation: Recent advances and future directions. Journal of Geotechnical and Geoenvironmental Engineering, 131(7), pp. 916-927.

2. Chang M.F., Juang C.H., and Chiu C.P. (2011) Analysis of soil nail wall behavior under different conditions using a numerical model. Computers and Geotechnics, 38(5), pp. 666-678.

The null hypothesis would not be rejected and the researcher would fail to find statistical significance at the chosen alpha level of .05.

If a researcher sets the alpha level at .05 and obtains a p-value of .06, it means that the p-value is greater than the chosen significance level. The alpha level, also known as the significance level, represents the threshold for determining whether the results are statistically significant or not.

In hypothesis testing, the null hypothesis assumes that there is no significant difference or relationship between variables.

If the p-value is less than or equal to the alpha level, it suggests that there is enough evidence to reject the null hypothesis and conclude that there is a significant difference or relationship.

However, if the p-value is greater than the alpha level, as in this case with a p-value of .06, it means that the observed data does not provide sufficient evidence to reject the null hypothesis.

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Step-by-step explanation:

The three internal angles of a triangle sum to 180 °

x + 23      +      4x+17     +   80    = 180

5x + 120 = 180

5x = 60

x = 12 °

Answer:

154500

Step-by-step explanation:

The formula states that

S. I= P*R*T/100

S.I= 15000*2.5*412/100

S.I= 15000*25/10*412/100

S.I= 15000*25*412/100*10

S.I= 154500000/1000

S.I= 154500