please help i’ll make brainlest

Please Help Ill Make Brainlest

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Answer 1

Answer:

14

Step-by-step explanation:


Related Questions

How many sides does a rectangular pyramid

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Answer:

Step-by-step explanation:

A rectangular pyramid has five sides. It consists of a rectangular base and four triangular faces that meet at a common vertex or apex.


≧◉◡◉≦

The Fandago Bike Company specializes in children’s bikes. Each month, the company must keep track of their costs and revenue. Their costs consists of fixed costs that include rent, utilities, and workers’ salaries, as well as the variable cost to make the bikes. You can represent the company’s costs using the function C(x) = 25x + 900. You can represent the company’s revenue for every bike sold using the function R(x) = 100x - x².

Due to the rising costs of running a business, the Fandago Bike Company anticipates fixed costs in the next year to be $1800 per month, whereas the cost to make each bike will stay at $25 per bike.

Determine the number of bikes the company now needs to make for one month to break even when the revenue from selling bikes remains the same.

Answers

The Fandago Bike Company needs to produce 60 bikes in one month to break even when the revenue from selling bikes remains the same.

To find the number of bikes the Fandago Bike Company needs to make for one month to break even, we need to set the cost function equal to the revenue function and solve for x. This is because the break-even point is the point where the company’s revenue equals its costs.

The cost function is C(x) = 25x + 900, where x is the number of bikes produced in one month.

The revenue function is R(x) = 100x - x², where x is the number of bikes sold in one month (which we assume is equal to the number of bikes produced).

Setting C(x) = R(x), we have:

25x + 900 = 100x - x²

Rearranging and simplifying, we get a quadratic equation in standard form:

x² - 75x + 900 = 0

We can solve for x using the quadratic formula:

x =\((-b \± \sqrt(b\² - 4ac)) / 2a\)

In this case, a = 1, b = -75, and c = 900, so we have:

x = \((-(-75) \± \sqrt((-75)\² - 4(1)(900))) / 2(1)\)

Simplifying, we get:

x = (75 ± 45) / 2

x = 60 or x = 15

Since we are looking for the number of bikes the company needs to make to break even, we choose the value of x that represents the minimum number of bikes needed. In this case, x = 60, since the number of bikes produced cannot be negative.

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Given below are lease terms at the local dealership. Length of lease: 36 months msrp: $22,500 purchase value of the car after lease: 17,500 down payment: $1999 monthly payments: $425 $475 security deposit $500 acquisition fee if the lease factor is 0.00045 what monthly paymebts can you expect on this vehicle

Answers

Answer:

the answer is 3,399

Step-by-step explanation:

Find the length of the segment indicated below

Find the length of the segment indicated below

Answers

The calculated value of the side length in the triangle is 144

How to find the length of the indicated segment

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

The simiar triangles

Using the theorem of corresponding sides, we hav

GH = 2JK

So, we have

10x - 36 = 2 * 4x

Multiply

So, we have

10x - 36 = 8x

Evaluate

2x = 36

So, we have

x = 18

This means that

GK = 4 * 18

GK = 144

Hence, the indicated side length in the triangle is 144

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A 0.5 Kg mass is attached to the end of a spring with stiffness 25 N/m. The damp- ing constant for the system is 1 N-sec/m. If the mass is pushed 0.5 m above the equilibrium position and given an upward initial velocity of 3 m/sec, when will the mass first return to the equilibrium position?

Answers

The mass will first return to the equilibrium position after approximately 1.74 seconds.

To find the time it takes for the mass to return to the equilibrium position, we can use the equation of motion for a damped harmonic oscillator. The equation is given by:

m * \(d^2x/dt^2\) + c * dx/dt + k * x = 0

where m is the mass, c is the damping constant, k is the stiffness of the spring, x is the displacement from the equilibrium position, and t is time.

Given that m = 0.5 kg, c = 1 N-sec/m, and k = 25 N/m, we can plug these values into the equation and solve for x.

The general solution for the motion of a damped harmonic oscillator is of the form:

x(t) = A *\(e^{-ζωn t}\) * cos(ωdt + φ)

where A is the amplitude of the motion, ζ is the damping ratio, ωn is the natural frequency of the system, ωd is the damped angular frequency, and φ is the phase angle.

By applying the given initial conditions (x = 0.5 m, dx/dt = 3 m/sec), we can solve for the unknown parameters and determine the time it takes for the mass to return to the equilibrium position. After performing the calculations, it is found that the mass will first return to the equilibrium position after approximately 1.74 seconds.

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Calculate the TOTAL amount 1 that Mia has to pay back if she takes the loan. Why, do you think, do banks 2 and other financial institutions offer cash loans to people that did not apply for it? Wh: fitable2 Sh​

Answers

1. We should understand that question is missing, but, the amount 1 that Mia has to pay back if she takes the loan will be Loan amount plus the interest on it.

2. The banks 2 and other financial institutions did offer cash loans to people that did not apply for it because they knew that had favorable credit worthiness, that is, they repay loan as at when due.

What Is Creditworthiness of an entity?

Creditworthiness is how a lender determines whether you will default on your debt obligations or whether you are creditworthy. Creditors consider your creditworthiness before approving new credit for you.

Several factors influence it, including your repayment history and credit score. When determining the likelihood of default, some lending institutions consider available assets as well as the number of liabilities you have.

The credit report shows how much debt you have, as well as the high balances, credit limits, and the current balance of each account. It will also flag any relevant information for the potential lender, such as past due amounts, defaults, bankruptcies, and collection items.

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Planes x and y are perpendicular. Points a, e, f, and g are points only in plane x. Points r and s are points in both planes x and y. Lines ea and fg are parallel. Based on this information, which pair of lines, together, could be perpendicular to rs? select two options.

Answers

The pair of lines perpendicular to RS are EA and FG.

A flat surface on which a straight line joining any two points on it would wholly lie is known as a plane.

What is plane?

A plane is a point, a line, and three-dimensional space's equivalent in two dimensions.

Main Body:

Given

E,F and G are on plane X. R and S are in both planes X and Y. EA and FG are parallel. AE and FG are vertical lines and are present on plane X. RS is present at the intersection of the 2 planes.

Explanation:

The lines which together could be perpendicular to RS are EA and FG.

We have to first draw both the planes according to the given information in question.

X is a vertical plane so draw a plane vertical on the horizontal plane that is Y plane. Now plot A and F And G in X plane and R,S in such a way that they  are in both plane so they will be at the intersection of both the planes. Now draw lines from A and F to form lines EA and FG.

Hence we can observe that lines EA and FD are perpendicular on line RS.

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Planes x and y are perpendicular. Points a, e, f, and g are points only in plane x. Points r and s are

a food truck sells 1200 burgers a week on average. the truck operates 7 days a week. (we will assume no variability from day to day.) the food truck owner of wants to be sure that the ingredients are fresh and that hamburger is not kept in the refrigerator more than 2 days on average. if each burger uses .25 pounds of hamburger, what should the maximum pounds of hamburger in the food truck be?

Answers

To ensure that the hamburger is not kept in the refrigerator for more than 2 days on average, the food truck should have a maximum of approximately 42.86 pounds of hamburger.

Given that the food truck sells an average of 1200 burgers per week, and it operates 7 days a week, we can calculate the total burgers sold per day:

Burgers per day = Total burgers per week / Number of days per week

Burgers per day = 1200 burgers / 7 days

Burgers per day ≈ 171.43 burgers

Since each burger uses 0.25 pounds of hamburger, we can calculate the maximum pounds of hamburger needed per day:

Pounds of hamburger per day = Burgers per day * Hamburger per burger

Pounds of hamburger per day = 171.43 burgers * 0.25 pounds/burger

Pounds of hamburger per day ≈ 42.86 pounds

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The maximum pounds of hamburger that should be stored in the food truck to ensure freshness and avoid exceeding 2 days on average is approximately 42.86 pounds.

To ensure that the hamburger is not kept in the refrigerator for more than 2 days on average, we need to calculate the maximum pounds of hamburger that should be stored in the food truck.

Average number of burgers sold per week = 1200

Number of operating days per week = 7

Weight of hamburger per burger = 0.25 pounds

To calculate the maximum pounds of hamburger, we can use the following formula:

Maximum pounds of hamburger = Average burgers sold per day × Number of days

First, we calculate the average number of burgers sold per day:

Average burgers sold per day = Average burgers sold per week / Number of operating days per week

Average burgers sold per day = 1200 / 7

Average burgers sold per day ≈ 171.43 (rounded to two decimal places)

Now, we can calculate the maximum pounds of hamburger:

Maximum pounds of hamburger = Average burgers sold per day × Weight of hamburger per burger

Maximum pounds of hamburger = 171.43 × 0.25

Maximum pounds of hamburger ≈ 42.86 (rounded to two decimal places)

Therefore, the maximum pounds of hamburger that should be stored in the food truck is approximately 42.86 pounds.

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solve step by step and explain three math questions pls! Ill make brainliest :)
1. 13 + 4q = -2q + 12 + q
2. 2.5x - 4 + 1.2 = 3.5
3. -27 = -9y + 6y + 3

Answers

Answer:

joe momma, you should know that baka. ha how u like them apples

Find the z-score for the value 72 , when the mean is 81 and the standard deviation is 2 . A. z=0.86 B. z=−4.50 C. z=−5.00 D. z=−0.86

Answers

The correct answer is D. z = -0.86.

The z-score is a measure of how many standard deviations a particular value is away from the mean. It is calculated using the formula z = (x - μ) / σ, where x is the given value, μ is the mean, and σ is the standard deviation.

In this case, the given value is 72, the mean is 81, and the standard deviation is 2. Plugging these values into the formula, we have z = (72 - 81) / 2 = -9 / 2 = -4.5. Therefore, the z-score for the value 72 is -4.5.

However, the options provided are not consistent with the calculated z-score. Option D, z = -0.86, seems to be the closest approximation to the correct value of -4.5. It is possible that there was an error in the options provided, and D is the intended answer. It is important to note that the z-score is typically expressed as a decimal or a fraction, rather than a negative value. Therefore, the correct answer can be interpreted as z = -0.86 or z ≈ -4.5, depending on the desired level of precision.

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Julia owns a food truck that sells tacos and burritos. She only has enough supplies to make 67 tacos or burritos. She sells each taco for $3.75 and each burrito for $6. Julia must sell no less than $330 worth of tacos and burritos each day. If 42 burritos were sold, determine all possible values for the number of tacos that Julia must sell in order to meet the requirements. Your answer should be a comma-separated list of values. If there are no possible solutions, submit an empty answer.

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Answer:

go to this question https://brainly.com/question/13301815 it has the answer

The solution is the point (25,40).

How to determine all possible values for the number of tacos?

Let

⇒ x = represents the number of tacos sold.

⇒ y = represents the number of burritos sold.

we know that,

⇒ x + y \(\leq\) 62

⇒ 3.75x + 6y = 330

The solution is the triangular shaded area see the attached figure

(25,40)

One possible solution is the point (25,40).

Remember that if an ordered pair is a solution of the system of inequalities, then the ordered pair must lie on the shaded area of the solution.

That means the number of tacos sold is 30 and the number of burritos sold.

Inequality refers to the phenomenon of unequal and/or unjust distribution of resources and opportunities among members of a given society. The term inequality may mean different things to different people and in different contexts.

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Julia owns a food truck that sells tacos and burritos. She only has enough supplies to make 67 tacos

Telescoping Series: Given the series n(n - 1) "=2 Part 1 Find a formula for the nth partial sum, Sn that depends only on n. Sn = _________ Part 2 Evaluate the following limit to determine whether the given series converges or diverges. lim Sn _________ Therefore the series _________ to _________. Note: If the series diverges, type 'inf' in the last blank:

Answers

The formula for the nth partial sum of the series n(n-1) is Sn = n(n+1)(2n-1)/6 and the series diverges.

Part 1: The formula for the nth partial sum, Sn, for the series n(n-1), can be found by using the formula for the sum of the first n natural numbers, which is given by Sn = n(n+1)/2. To find the sum of n(n-1), we can rewrite it as n^2 - n and use the formula for the sum of the first n squares, which is given by n(n+1)(2n+1)/6. Therefore, the formula for Sn is Sn = n(n+1)(2n-1)/6.

Part 2: To determine whether the given series converges or diverges, we need to evaluate the limit of Sn as n approaches infinity. Taking the limit of the formula for Sn, we get lim Sn = lim [n(n+1)(2n-1)/6] = lim (2n^3/6) = lim (n^3/3) = inf. Since the limit of Sn is infinity, the series diverges.

In conclusion, the formula for the nth partial sum of the series n(n-1) is Sn = n(n+1)(2n-1)/6 and the series diverges as the limit of Sn approaches infinity. This means that the sum of the series does not converge to a finite value and grows without bound as n increases.

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A term is a constant, a variable, or a ___ of numbers and variables.

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A term is a constant, a variable, or a number-variable product.

What exactly is a variable?

In algebra, a symbol (usually a letter) used to indicate an unknown numerical value in an equation or algebraic statement. A variable is a quantity that is changeable rather than fixed. In mathematics, a variable is an alphabet or phrase that represents an unknown amount, unknown value, or unknown number. Variables are very useful in algebraic expressions or algebra. As an example, the variables x and 9 are constants in the linear equation x+9=4.

A term can be a number, a constant, a variable, or the product of a number and a variable in this context.

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Jea need $140 to buy a bicycle. He ave $10 each week. He ha already aved $60. How many week from now can jea buy the bicycle

Answers

8 weeks

If Jea has $60, he will need 80 more dollars to afford the bicycle. If he gets paid $10 a week, it will take him 8 weeks

20 points!! please help, will give brainliest

20 points!! please help, will give brainliest

Answers

Answer:

(-0.8, 2.2)

Step-by-step explanation:

Where the two lines intersect is the solution to the System of Equations.

Answer:

the answer would be (-0.8, 2.2) since it hasn't hit -3 yet and if it were to be -1 it would be in the bottom left

Solve equation
0=5x+3

Answers

Answer:

the answer is -3/5

Step-by-step explanation:

x=-0.6

Answer:

0   =5x+3

-3   =5x

-3/5=x

    x=-3/5

. a telephone survey contacts 342 voters from the last election and asks if they voted for the current governor. what is the probability that at least half of the voters contacted supported the current governor in the last election?

Answers

The probability that at least half of the voters contacted supported the current governor is approximately 0.3322 or 33.22%.

The proportion of voters who voted for the current governor in the election can be determined using the formula

\(P=\frac{x}{n}\)

p is the proportion,

x is the number of voters who supported the current governor

n is the number of voters in the sample.

In this case, the sample size is 342, and we don't know the number of voters who supported the current governor.

Therefore, we can estimate the proportion using the sample proportion.

The sample proportion is obtained by dividing the number of voters who supported the current governor by the sample size.

Let us assume that half of the voters contacted supported the current governor.

Since we know that the sample size is 342, the number of voters who supported the current governor is 171, which is half of 342.

Therefore, the sample proportion is  \(p=\frac{171}{342}=0.5\)

In order to calculate the probability that at least half of the voters contacted supported the current governor, we need to use the normal distribution.

The normal distribution is a continuous probability distribution that is widely used to model real-world phenomena.

The normal distribution is characterized by two parameters: the mean and the standard deviation.

In this case, the mean of the normal distribution is given by the sample proportion, which is p = 0.5.

The standard deviation of the normal distribution can be calculated using the formula:

\(σ=sqrt\frac{p(1-p)}{n}\)

σ is the standard deviation,

p is the proportion, and

n is the sample size.

Using the values we have, we can calculate the standard deviation:

\(σ=sqrt\frac{0.5(1-0.5)}{342} =0.0253\)

We want to find the probability that at least half of the voters contacted supported the current governor, which means we want to find the probability that the sample proportion is greater than or equal to 0.5.

Using the normal distribution, we can standardize the sample proportion and find the probability that it is greater than or equal to 0.5.

The standardized score is given by the formula

\(z= \frac{(p-μ)}{σ}\)

z is the standardized score,

p is the proportion,

μ is the mean,

σ is the standard deviation.

Using the values we have, we can standardize the sample proportion:

\(z=\frac{0.5 - 0.5}{0.0253} =0\)

The probability of a standardized score being 0 is 0.5.

Therefore, the probability that the sample proportion is greater than or equal to 0.5 is 0.5 + (1 - 0.5) x 0.5 = 0.75.

However, this probability is for a normal distribution with a mean of 0.5 and a standard deviation of 0.0253.

We want the probability for a sample of 342 voters, so we need to adjust our answer using the continuity correction factor.

The continuity correction factor is used when we are approximating a discrete distribution with a continuous distribution.

In this case, the sample proportion is a discrete distribution because it can only take on certain values (such as 0.5, 0.51, 0.52, etc.).

However, we are using a continuous distribution (the normal distribution) to approximate the sample proportion.

Therefore, we need to adjust our answer using the continuity correction factor.

The continuity correction factor is given by the formula 0.5 - 0.5/n, where n is the sample size.

Using the continuity correction factor, we can adjust our answer:

\(0.75-\frac{0.5-0.5}{342} =0.3322\)

Therefore, the probability that at least half of the voters contacted supported the current governor in the last election when a telephone survey contacts 342 voters from the last election and asks if they voted for the current governor is approximately 0.3322 or 33.22%.

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Simplify the expression.
4 + 5(7v. +10)

Answers

Answer:

54+35v

Step-by-step explanation:

I hope this helps :)

Answer:

=35v+54

Step-by-step explanation:

Sam has a part-time job delivering flyer start door he heard a quarter for every 10 fires he delivers he wants to earn $45 to buy his mother's birthday present sam figures out that he can write a proportion to determine how many flyers does he needs to deliver to earn $45

Sam has a part-time job delivering flyer start door he heard a quarter for every 10 fires he delivers

Answers

We can use a proportion to determine how many flyers Sam needs to deliver to earn $45. A proportion is an equation that states that two ratios are equal. In this case, we can use the ratio of the number of flyers delivered to the amount of money earned.

What in mathematics is a linear equation?

According to Wolfram MathWorld A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. The variables in the preceding equation are y and x, and it is occasionally referred to as a "linear equation of two variables."

Let x be the number of flyers Sam needs to deliver to earn $45. The proportion can be written as:

x/45 = 10/1

We can solve for x by multiplying both sides of the proportion by 45:

x = (10/1)*45 = 450

So, Sam needs to deliver 450 flyers to earn $45.

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the width of a rectangle is twice as long as the length. if the length is increased by 50% and the width is decreased by 20%, the perimeter becomes 248. find the width and length of the original rectangle.
will give brainliest to correct answer

Answers

Answer:

Step-by-step explanation:

I answered your question in #24317186. Apparently you asked it twice and no one helped you yesterday.

Math school please need help

Math school please need help

Answers

Answer:

r² = (9 - 4)² + (6 - 4)² = 5² + 2² = 25 + 4 = 29

So the equation of this circle is

(x - 4)² + (y - 4)² = 29

Which sets of data show the correct media? sort tiles into their proper categories

Answers

The sets of data that  show the correct median is given as follows.

Correct Median:

9, 3, 6, 1, 4 (median = 4)

1, 6, 9 (median = 6)

​4. 9, 11, 13, 16, 20 (median = 12)

Incorrect Median:

2. 7.9, 11, 14, 76 (median = 76)

43, 46, 48, 52 (median = 48)

3, 10, 7 (median = 10)

What is median?

The median is the value that separates the upper and lower halves of a data sample, population, or probability distribution in statistics and probability theory. It is sometimes referred to as "the middle" value in a data collection.

Arrange the data points from smallest to greatest to get the median. If the number of data points is odd, the median is the data point in the middle of the list. If the number of data points in the list is even, the median is the average of the two middle data points.

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Full Question:

Which sets of data show the correct media? Sort the tiles into their proper categories. 9, 3, 6, 1, 4 (median = 4) Correct Median Incorrect Median 4. 9, 11, 13, 16, 20 (median = 12) 1, 6, 9 (median = 6) 2. 7.9, 11, 14, 76 (median = 76) 43, 46, 48, 52 (median = 48) 3, 10, 7 (median = 10)​

Which sets of data show the correct media? sort tiles into their proper categories

this is due now pls exsplain

this is due now pls exsplain

Answers

Answer:

B

Step-by-step explanation:

Add 5 to the x coordinate and leave the y coordinate the same.

Helping in the name of Jesus.

Answer:

B.

Step-by-step explanation:

basically it wants you to find the coordinates of the shape after it had been moved. So u measure all four points On the coordinate plane, and B is your answer

Find the slope and y-intercept of y=4/3 x-3

Answers

Answer:

Slope: 4/3

Y-intercept: -3

Step-by-step explanation:

The formula is...

y = mx + b

Where m is slope and b is y-intercept so in this case, 4/3 is slope and -3 is the y-intercept.

Hope that helps and have a great day!

Answer: The slope is 43, the y- intercept of y=4/3 x-3 is 0,-3.

Step-by-step explanation:

Define BODMAS please

Answers

Answer:

B=Brackets

O=??? (otherwise the word would be bdmas)

D=Division

M=Multiplication

A=Addition

S=Subtraction

Step-by-step explanation:

Answer:

B=Brackets

O=Orders (sqaure root and exponents)

D=Division

M=Multiplication

A=Addition

S=Subtraction

PLEASE MARK BRAINLIEST

Select all tables that could represent a function.
A. B. OR C.

Answers

Answer:

*selects all tables*

Given two lines in space, either they are parallel, they intersect, or they are skew (lie in parallel planes). Determine whether the lines below, taken two at a time, are parallel, intersect, or are skew. If they intersect, find the point of intersection. Otherwise, find the distance between the two lines.
L1: x = 1 - t, y = 2 - 2t, z = 2-t, -[infinity] < t < [infinity]
L2: x = 2 - 2s, y = 8 - 4s, z = 1 - 2s, -[infinity] < 5 < [infinity]
L3: x = 2 +r, y = 4 + 4r, z = 3 - 2r, - [infinity] < r < [infinity]
Select the correct choice below and fill in the answer box(es) to complete your choice.
(Type exact answers, using radicals as needed.)
O A. L1 and L2 are skew. Their distance is
O B. L1 and L2 intersect at the point ( __ __ __).
O C. L1 and L2 are parallel. Their distance is

Select the correct choice below and fill in the answer box(es) to complete your choice.
(Type exact answers, using radicals as needed.)
O A. L1 and L3 are parallel. Their distance is
O B. L1 and L3 intersect at the point
O C. L1 and L3 are skew. Their distance is

Select the correct choice below and fill in the answer box(es) to complete your choice.
(Type exact answers, using radicals as needed.)
O A. L2 and 13 are parallel. Their distance is
O B. L2 and L3 are skew. Their distance is
O C. L2 and L3 intersect at the point

Answers

To determine the relationship between the given lines, we can compare their direction vectors or examine their equations.

For L1: x = 1 - t, y = 2 - 2t, z = 2 - t

The direction vector for L1 is given by (1, -2, -1).

For L2: x = 2 - 2s, y = 8 - 4s, z = 1 - 2s

The direction vector for L2 is (2, -4, -2).

For L3: x = 2 + r, y = 4 + 4r, z = 3 - 2r

The direction vector for L3 is (1, 4, -2).

Now, let's compare the direction vectors of the lines:

L1 and L2:

The direction vectors are not scalar multiples of each other, which means the lines are not parallel. To determine if they intersect or are skew, we can set up a system of equations:

x = 1 - t

y = 2 - 2t

z = 2 - t

x = 2 - 2s

y = 8 - 4s

z = 1 - 2s

By equating the corresponding components, we have:

1 - t = 2 - 2s

2 - 2t = 8 - 4s

2 - t = 1 - 2s

From the first equation, we get t = 1 + 2s.

Substituting this value into the second equation, we get 2 - 2(1 + 2s) = 8 - 4s.

Simplifying, we have -2 - 4s = 8 - 4s.

This equation is consistent and does not lead to any contradictions or identities. Therefore, L1 and L2 are coincident or intersecting lines.

To find the point of intersection, we can substitute the value of t or s into the parametric equations of either line. Let's use L1:

x = 1 - t

y = 2 - 2t

z = 2 - t

Substituting t = 1 + 2s, we get:

x = 1 - (1 + 2s) = -2s

y = 2 - 2(1 + 2s) = -4 - 4s

z = 2 - (1 + 2s) = 1 - 2s

Therefore, the point of intersection for L1 and L2 is (-2s, -4 - 4s, 1 - 2s), where s is a parameter.

L1 and L2 intersect at the point (-2s, -4 - 4s, 1 - 2s).

Now let's consider L1 and L3:

The direction vectors for L1 and L3 are not scalar multiples of each other, indicating that the lines are not parallel. To determine if they intersect or are skew, we set up a system of equations:

x = 1 - t

y = 2 - 2t

z = 2 - t

x = 2 + r

y = 4 + 4r

z = 3 - 2r

By equating the corresponding components, we have:

1 - t = 2 + r

2 - 2t = 4 + 4r

2 - t = 3 - 2r

From the first equation, we get t = 1 - r.

Substituting this value into the second equation, we have 2 - 2(1 - r) = 4 + 4r.

Simplifying, we get 2 - 2 + 2r = 4 + 4r, which simplifies to 2r = 2r.

This equation is consistent and does not lead to any contradictions or identities. Therefore, L1 and L3 are coincident or intersecting lines.

To find the point of intersection, we can substitute the value of t or r into the parametric equations of either line. Let's use L1:

x = 1 - t

y = 2 - 2t

z = 2 - t

Substituting t = 1 - r, we get:

x = 1 - (1 - r) = r

y = 2 - 2(1 - r) = 4r

z = 2 - (1 - r) = 1 + r

Therefore, the point of intersection for L1 and L3 is (r, 4r, 1 + r), where r is a parameter.

L1 and L3 intersect at the point (r, 4r, 1 + r).

Finally, let's consider L2 and L3:

The direction vectors for L2 and L3 are not scalar multiples of each other, indicating that the lines are not parallel. To determine if they intersect or are skew, we set up a system of equations:

x = 2 - 2s

y = 8 - 4s

z = 1 - 2s

x = 2 + r

y = 4 + 4r

z = 3 - 2r

By equating the corresponding components, we have:

2 - 2s = 2 + r

8 - 4s = 4 + 4r

1 - 2s = 3 - 2r

From the first equation, we get s = -r.

Substituting this value into the second equation, we have 8 - 4(-r) = 4 + 4r.

Simplifying, we get 8 + 4r = 4 + 4r, which simplifies to 8 = 4.

This equation leads to a contradiction, indicating that L2 and L3 are skew lines.

Therefore, the correct choices are:

L1 and L2: L1 and L2 intersect at the point (-2s, -4 - 4s, 1 - 2s).

L1 and L3: L1 and L3 are parallel. Their distance is determined by finding the shortest distance between a point on L1 and the plane containing L3.

L2 and L3: L2 and L3 are skew lines. Their distance is determined by finding the shortest distance between the two skew lines.

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of the total variation in the dependent variable, the proportion that is explained by the variation in the independent variable is called

Answers

Of total variation in "dependent-variable", the proportion which is explained by variation in "independent-variable" is called (b) coefficient of determination.

The "Coefficient-Of-Determination", denoted as R², is a statistical measure which represents the proportion of total-variation in the dependent variable which can be explained by  variation in "independent-variable".

It quantifies the percentage of dependent variable's variability which can be attributed to the independent variable. A higher coefficient of determination indicates a stronger relationship between the variables, which means that more of variation in "dependent-variable" can be accounted for by changes in the independent-variable.

Therefore, the correct option is (b).

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The given question is incomplete, the complete question is

Of the total variation in the dependent variable, the proportion that is explained by the variation in the independent variable is called

(a) the coefficient of correlation

(b) the coefficient of determination

(c) the coefficient of skewness

(d) none of the above

What is the shape of the cross section of the figure that is parallel to the triangular bases?
A.
a parallelogram that is not a rectangle
a rectangle
a triangle that must have the same dimensions as the bases
a triangle that may not have the same dimensions as the bases
Save and Exit
NA
Su
Mark this and retum
please hurry it’s ends at 11:59

Answers

Answer:

a rectangle

Step-by-step explanation:

As we can see that there is a cross-section which we called as a rectangle.

Plus there is a triangle which is to be formed but this would be possible when the plane is perpendicular to the base of the rectangle and at the same time it is parallel to the base of the triangular

Now if a plane cuts a figure i.e parallel to the mentioned base therefore the cross section would be received as a figure which would be parallel to its base

What is the shape of the cross section of the figure that is parallel to the triangular bases?A.a parallelogram

Answer: I think it is C

Step-by-step explanation:

PLEASE HELP GIVING POINTSS

PLEASE HELP GIVING POINTSS

Answers

Answer:

B (10, - 6)

Reflection across y-axis only affects the

y-value. The x-value remains the same. The y-value changes sign.

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