HELP ME ASAP PLEASE!!!

Lines a and b are parallel lines.

Lines a and c are perpendicular lines

Lines d and c are perpendicular lines.

The formula to calculate the slope between two points is equal to

\(m = y2-y1/(x2-x1)\)

Part 1) Find the slope of Line a

We have the points

(-3,4) and (3,6)

Substituting the value in the formula

\(m = 6-4/ (3-(-3))\\m = 2/6\\ma = 1/3\)

Part 2) Find the slope of Line b

We have the points

(-10,-3) and (-8,3)

Substituting the value in the formula

\(m = 3-(-3)/ (-8-(-10))\\m = 6/(-8+10)\\mb = 6/2=3\)

Part 3) Find the slope of Line c

We have the points

(0,5) and (3,-4)

Substituting the value in the formula

\(m = -4-5/ (3-0)\\m = -9/3\\mc = -3\)

Part 4) Find the slope of Line d

We have the points

(4,-7) and (13,-4)

Substituting the value in the formula

\(m = -4-(-7)/ (13-(4))\\m = 3/9\\md = 1/3\)

Part 5) Compare the slopes

Remember that

If lines are parallel then their slopes are equal.

If lines are perpendicular then their slopes are opposite reciprocal.

We've got,

\(ma = 1/3\\mb = 3\\mc = -3\\md = 1/3\)

Lines a and b are parallel lines (slopes are the same).

Lines a and c are perpendicular lines (slopes are opposite reciprocal).

Lines d and c are perpendicular lines (slopes are opposite reciprocal).

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Answer:

a. 10,000

b. 81

c. -8

d. 25

e. 1236

f. 8/27

g. 81/625

h. 1/32

i. 1/36

j. 1

k. 8

Step-by-step explanation:

How I got each of these answers:

a. 10^4

10 * 10 * 10 * 10

100 * 10 * 10

1000 * 10

10000

b. -3^4 (two negatives equal a positive)

-3 * -3 * -3 * -3

9 *-3 * -3

-27 * -3

81

c. -2^3

-2 * -2 * -2

4 * -2

-8

d. -5^2

-5 * -5

25

e. -6^4

-6 * -6 * -6 * -6

36 * -6 * -6

-216 * -6

1236

f. (2/3)^3

(2*2*2)/(3*3*3)

(4*2)/(9*3)

8/27

g. (-3/5)/4

(-3*-3*-3*-3)/(5*5*5*5)

(9*-3*-3)/(25*5*5)

(-27*3)/(125*5)

81/625

h. (1/2)^5

1/(2*2*2*2*2)

1/(4*2*2*2)

1/(8*2*2)

1/(16*2)

1/32

i. (-1/6)^2

(-1 * -1)/(6*6)

1/36

j. (2/5)^9 / (2/5)^9

(2^9)/(5^9) / (2^9)/(5^9)

(512/1953125) / (512/1953125)

1

k. -24t^4/-3t^4

(-24t^4)^1 * (1/-3t^4)

(-24)^1 * (t^4)^1 * (1/-3) * (1/t^4)

(-24)^1 * (1/-3)(t^4) * (1/t^4)

(-24)^1 * (1/-3) * t^4 * t^4(-1)

(-24)^1 * (1/-3) * t^4 * t^-4

(-24)^1 * (1/-3) * t^0

-24 * -1/3 * t^0

8t^0

8 * 1

8

Answer:

ACD

Step-by-step explanation:

VNQLW3M2L,Q;KJ52KQ

Answer:

answer -15 ans hope this helps

Answer:

2x+33/3

Step-by-step explanation:

11+2/3x 11+2x/3

11+2x/3 3 x 11/3 + 2x/3

3 x 11/3 + 2x/3 3 x 11 + 2x/3

3 x 11 + 2x/3  33+2x/3

33+2x/3  2x+33/3

Average number of planes that will stack up waiting to land:  This can vary greatly depending on the size of the airport, the number of flights per day, and the number of runways available.

What is average?

Average, mean, median, and norm all refer to something that sits in the middle. The average is the ratio created by dividing the total number of figures in a set by the total number of figures.

To determine the average number of planes that will stack up waiting to land, we need to know the rate at which planes arrive at the airport and the rate at which they are able to land.

Generally, an airport can expect to experience a queue of up to 10 planes waiting to land at peak times.

Average time a plane must wait in line before it can land: This also varies significantly depending on the airport and the conditions. Generally, a plane must wait an average of 5-7 minutes before it is able to land.

Average time it takes a plane to clear the runway once it has notified the airport that it is in the vicinity and wants to land: This time will depend on the size of the airport, the number of planes in the queue, and the amount of time it takes for the plane to taxi off the runway. Generally, a plane can expect to clear the runway in about 2-3 minutes.

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Compounded semi annually y=1400(1.05) 2t  compounded monthly is y=6200(1.007)12t compounded quarterly is y=3500(1.023) 4t

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Answer:

1) A reflection across the y-axis

and then

2) A reflection across the x-axis    

Step-by-step explanation:

Answer:

tranform the 1st one to: 3m-n=11

add the 1st and 2ns equations: 5m+2n=11

(a) Yes, A + B is also in M                                                                                                                                                                                                                                                                                                                                                                                                                                   (b) Yes, kD is also in M                                                                                                                                                                                                                                                                                                                                                                                                                            (c) Yes, M is a subspace of V

(a) Yes, A + B is also in M. This is because the sum of two diagonal matrices is also a diagonal matrix, and therefore A + B has all zero entries outside of the diagonal, and so A + B is in M.

(b) Yes, kD is also in M. This is because multiplying a diagonal matrix by a scalar simply multiplies each entry on the diagonal by that scalar, and so kD is still a diagonal matrix and thus is in M.

(c) Yes, M is a subspace of V. To show this, we need to verify that M satisfies the three properties of a subspace:

The zero vector, which is the 3 x 3 matrix with all entries equal to zero, is in M.

If A and B are in M, then their sum A + B is also in M, as we showed in part (a).

If A is in M and k is any scalar, then kA is also in M, as we showed in part (b).

Therefore, M satisfies all three properties of a subspace and is thus a subspace of V.

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Step-by-step explanation:

if there is no inventory to move around, there is no need for logistics. do you agree ? why ? why not ?

The value of the algebraic expression 11.5x + 10.9y  at x = 6 and y = 7 is 145.3

What is an algebraic expression?

Algebraic expression consists of variables and numbers connected with addition, subtraction, multiplication and division

The given algebraic expression is 11.5x + 10.9y

We have to find the value of the algebraic expression at x = 6 and y = 7

Putting x = 6 and y = 7 in the algebraic expression,

\(11.5 \times 6 + 10.9 \times 7\)

69 + 76.3

145.3

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Answer:

No she is wrong.

Step-by-step explanation:

Let's simplify step-by-step.

6−3y+4+2y

=6+−3y+4+2y

Combine Like Terms:

=6+−3y+4+2y

=(−3y+2y)+(6+4)

=−y+10

Answer:

=−y+10

a) Entering this into a calculator gives us:CI = (63.876, 88.524) b) test for the population is between 63.876 and 88.524 c)  If the standard deviation of the test scores had been 42.8 instead of 21.4, the width of the confidence interval would increase. d) . If the confidence level were reduced to 90%, the interval would be narrower. e) If the sample size was increased to 75 subjects, the interval would be narrower.

a. To find a 95% confidence interval for the mean score on the test, we can use the formula:

To find the confidence interval, we need to estimate the population standard deviation with the sample standard deviation. So:

CI = 76.2 ± 1.96 * (21.4/√27)

Entering this into a calculator gives us:

CI = (63.876, 88.524)

b. The confidence interval we found tells us that we are 95% confident that the true mean score on the test for the population is between 63.876 and 88.524. In other words, if we were to take many random samples of 27 people and compute a 95% confidence interval for each one, then about 95% of those intervals would contain the true population mean.

c. If the standard deviation of the test scores had been 42.8 instead of 21.4, the width of the confidence interval would increase. This is because a larger standard deviation means that the data are more spread out, which makes it more difficult to estimate the population mean accurately.

d. If the confidence level were reduced to 90%, the interval would be narrower. This is because a higher confidence level requires a larger z-score, which widens the interval. Conversely, a lower confidence level requires a smaller z-score, which narrows the interval.

e. If the sample size was increased to 75 subjects, the interval would be narrower. This is because a larger sample size decreases the standard error (σ/√n), which makes it easier to estimate the population mean accurately and results in a narrower confidence interval.

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The sugar that the original recipe call for is 0.5 cups.

From the information, the recipe calls for x an amount of sugar, but Jeff wants to cut the recipe by 1/4 because he does not want any leftovers. After cutting the amount of sugar needed for the original recipe by 1/4, Jeff uses 2 cups of sugar.

The original amount will be calculated thus:

x ÷ 1/4 = 2

x ÷ 0.25 = 2

x = 2 × 0.25

x = 0.5

The original amount is 0.5 cups.

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the answer is b lil boy ggggggg

The number of cupcakes that were sold in each of the hours between 4 and 6 o’ clock is 24 cupcakes.

Since the total number of cupcakes that were sold is equal to 9 dozen cupcakes.

Total number of cupcakes = 9 * 12 = 108 cupcakes.

Since c is the number of cupcakes that were sold in each of the hours between 4 and 6 o’ clock.

We can write an equation that represents the total number of cupcakes sold as follows:

36 + 24 + c + c = 108

Solve for c:

36 + 24 + c + c = 108

36 + 24 + 2c = 108

60 + 2c = 108

2c = 108 - 60

2c = 48

c = 48/2

c = 24

Therefore, the number of cupcakes that were sold in each of the hours between 4 and 6 o’ clock is 24 cupcakes.

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This statement is false. In a weighted, connected graph with edge weights not necessarily distinct, if one Minimum Spanning Tree (MST) has k edges of a certain weight w, it is not guaranteed that any other MST must also have exactly k edges of weight w.

1. In a weighted graph, each edge has a weight (or cost) associated with it.
2. A connected graph means there is a path between any pair of vertices.
3. An MST is a subgraph that connects all the vertices in the graph, without any cycles, and with the minimum possible total edge weight.

However, there can be multiple MSTs for a given graph, and their edge weights distribution might not be the same. This is because MSTs are primarily focused on minimizing the total weight, not necessarily preserving the number of edges with a specific weight. Different MSTs may use different sets of edges to achieve the minimum total weight, so they might not have the exact same count of edges with weight w.

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The probability that z ≥ -2.12 can be found using a standard normal distribution table or calculator. The answer is approximately 0.9830.  2. For a sample of 49 elements with a sample mean of 56 and a sample standard deviation of 14, the standard error of the mean is: b. 2

The standard error of the mean can be calculated using the formula:

\(standard error = sample standard deviation / square root of sample size\)

In this case, the sample standard deviation is 14 and the sample size is 49. Therefore, the standard error of the mean is:

standard error = 14 / √49
standard error = 14 / 7
standard error = 2

So the answer is (b) 2.

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I don't know what is given when I 8th May but if you can please send the answers

Answer:

._.

Step-by-step explanation:

If she has money, she gets stuff. If she broke, doesn't work/help, and expects another person to buy it for her, she ain't gonna get anything. Either way, she better work for that perfume.

Answer:

h*ll yes theyre still human i dont know why people care about that stuff

Step-by-step explanation:

if they deserve it then who cares

Answer:

The equation is;

f(x) = -2·x² + 5·x - 1

Step-by-step explanation:

The general form of a quadratic equation  or function f(x) is, f(x) = y = a·x² + b·x + c

Given that the points representing the quadratic function are;

(-1, -8), (0, -1), (1, 2) which  are of the form (x, y)

When x = -1, f(x) = y = -8

Plugging in the above values into the general form of a quadratic function, we have;

-8 = a·(-1)² + b·(-1) + c = a - b + c

-8  = a - b + c.........................(1)

When x = 0, y = -1, we have;

-1 = a·(0)² + b·(0) + c = c

c = -1.......................................(2)

When x = 1, y = 2, which gives;

2 = a·(1)² + b·(1) + c = a + b + c

2 = a + b + c........................(3)

Adding equation (1) to equation (3), we have;

-8 + 2 = a - b + c + a + b + c

-8 + 2 = 2·a + 2·c

From equation (2) c = -1, we get;

-8 + 2 = -6 = 2·a + 2·c = 2·a + 2 × (-1)

-6 = 2·a - 2

-4 = 2·a

a = -2

From equation (3), we have

2 = a + b + c

Substituting the values of a, and c gives;

2 = -2 + b - 1

b = 2 + 2 + 1 = 5

b = 5

The equation is therefore;

f(x) = -2·x² + 5·x - 1.

Answer:

b

Step-by-step explanation:

Answer:

45 degree

Step-by-step explanation:

The average speed can be shown as (A + B)/50 miles per minute, where the distance between town A and his home is A miles, and that from his home to town b is B miles, and the total time is 50 minutes.

The average speed of any object is given as the ratio of the total distance traveled by the body, to the total time taken.

Average Speed = Total Distance/Total Time.

In the question, we are informed that the person drove from town a to his home and then to town b, with the total journey time as 50 minutes.

We are asked to find the average speed of the person.

We assume the distance from town a to his home to be A miles.

We assume the distance from his home to town b to be B miles.

Thus, the total distance traveled = A + B miles.

The total time taken by the person is given to be 50 minutes.

We know that the average speed of any object is given as the ratio of the total distance traveled by the body, to the total time taken.

Thus, the average speed of the person can be shown as:

Average Speed = (A + B)/50 miles per minute.

Thus, the average speed can be shown as (A + B)/50 miles per minute, where the distance between town A and his home is A miles, and that from his home to town b is B miles, and the total time is 50 minutes.

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The linear equation that models the cab fare is: f(5) = 1.5(5) + 4 = 11.5 dollars

An equation is said to be linear if the maximum power of the variable is consistently 1. Another name for it is a one-degree equation. A linear equation with one variable has the conventional form Ax + B = 0. In this case, the variables x and A are variables, whereas B is a constant.

The equation for a linear equation in one variable is written as ax+b = 0, where a and b are two integers, and x is a variable. This equation has just one solution. For instance, the linear equation 2x+3=8 only has one variable. As a result, this equation has a single solution, x = 5/2.

Here f(x) = 1.5x + 4

where x is the number of miles.

To find the total fare for a 2-mile trip:

f(2) = 1.5(2) + 4 = 7 dollars

To find the total fare for a 3-mile trip:

f(3) = 1.5(3) + 4 = 7.5 dollars

To find the total fare for a 5-mile trip:

f(5) = 1.5(5) + 4 = 11.5 dollars

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Answer:

A. x= 4/5

B. x=4/5

Step-by-step explanation:

1) My guess would be B because in both of them you subtract 2 just not at the same time, I hope this is correct

Answer:

6a2-3ax+3a

Step-by-step explanation:

Answer:

Step-by-step explanation:

3a(2a-x+1)

= 6a² - 3ax + 3a

The dimensions of the rectangle will be 16 inches long and 7 inches wide,

Let W be the rectangle's width and L its length.

The area of the rectangle is the multiplication of the two different sides of the rectangle. Then the rectangle's area will be

Area of the rectangle = L × W square units

The length of a rectangular poster is 2 more inches than two times its width. The area of the poster is 112 square inches. Then the equations are given as,

LW = 112           ...1

L = 2W + 2       ...2

From equations 1 and 2, then we have

(2W + 2)W = 112

2W² + 2W - 112 = 0

W² + W - 56 = 0

W² + 8W - 7W - 56 = 0

W(W + 8) - 7(W + 7) = 0

(W + 8)(W - 7) = 0

W = 7, -8

Neglect - 8 because of negative signs. Then the length is given as,

L = 2 x 7 + 2

L = 14 + 2

L = 16

The dimensions of the rectangle will be 16 inches long and 7 inches wide,

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