Tell whether the slope of the line is positive, negative, zero, or undefined.

PLEASE HELP ILL GIVE YOU BRAINLIEST AND 5 STARS

The temperature in Fahrenheit is (9/5)X + 32.

Use the formula F = (9/5)C + 32, where C represents Celsius degrees and F represents Fahrenheit degrees

To convert X to Fahrenheit degrees."

Using the formula, we can convert Celsius to Fahrenheit as follows:

F = (9/5)C + 32

Substituting the given value, we get:

F = (9/5)(X) + 32

Simplifying:

F = (9/5)X + 32

Therefore, the temperature in Fahrenheit is (9/5)X + 32.

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The minimum score needed to receive a grade of A is 88.51

Let, X, be the scores of the student's

X follows Normal Distribution with mean = μ = 73 and standard deviation = σ = 11

The professor has informed us that 7.93 percent of her students received grades of A.

That is  P( X > a ) = 7.93% = 0.0793 .

We have to find a.

P( X > a ) = 7.93% = 0.0793

So, P( X <=  a ) = 1 - 0.0793 = 0.9207

Using function = NORMINV( probability , μ ,σ )

a = NORMINV( 0.9207, 73 , 11 ) = 88.51

The minimum score needed to receive a grade of A is 88.51

We have to find P( X <= 57.93 )

Using function = NORMDIST( x, μ , σ , 1 )

P( X <= 57.93 ) =NORMDIST( 57.93 , 73 , 11 , 1 ) = 0.0853 = 8.53%

8.53 percent of students failed the course

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The 2021st term of the sequence is (- n - 2017).

Given,

A sequence is constructed by listing all the possible numbers that contain no digit greater than 3 in ascending order.

We need to find out what is the 2021st term of this sequence.

An arithmetic sequence is a sequence where the difference between the consecutive terms is the same.

Example: 2, 4, 6, 8, 10

4 - 2 = 2

6 - 4 = 2

8 - 6 = 2

The nth term of an arithmetic sequence is given by:

= a + ( n - 1 ) d

Where a = the first term

d = common difference

Let the sequence that contains no digit less than 3 in ascending order be:

3 - n, 3 - (n + 1), 3 - (n+2), 3 - (n+3), 3 - (n+4),......

Where n = any real number from 1.

We see that the common difference is -1.

3 - (n+1) - (3 - n)

= 3 - n - 1 - 3 + n

= -1

3 - (n+2) - [3-(n+1)]

= 3 - n - 2 - 3 + n + 1

= -1

Find the 2021st term.

We have,

a = 3 - n

d = -1

n = 2021

= a + ( n - 1 ) d

= (3 - n) + ( 2021 - 1 ) (-1)

= 3 - n - 2020

= - n - 2017

Thus the 2021st term of the sequence is - n - 2017.

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Answer:

x = 16

Step-by-step explanation:

Since we are looking at 2 vertical angles you would start with:

5x - 2 = 78

    +2    +2

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

5x = 80

x = 16

I hope this helps you! :)

lol I have no idea thank 4 the points

Answer:

She would have to work 5 hours to make $105.

Step-by-step explanation:

First Step: Find Unit Rate

189/9 = 21

9/9 = 1

Every 1 hour she gets paid $21.

Step 2: Find how much she needs to work to get paid $105

105/21 = 5

If the variables are not quantitative we cannot do the arithmetic required in the formulas for r.

Quantitative order:

Therefore, if the variables are not quantitative we cannot do the arithmetic required in the formulas for r.

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The given vector field f = {(y + 8z + 7) sin(x), −cos(x), −8 cos(x)} is not conservative.

To determine if the vector field f = {(y + 8z + 7) sin(x), −cos(x), −8 cos(x)} is conservative, we need to check if it satisfies the condition of being a curl-free vector field.

A vector field is conservative if and only if its curl is zero. The curl of a vector field F = {P, Q, R} is given by the cross product of the del operator (∇) with F:

∇ × F = (dR/dy - dQ/dz, dP/dz - dR/dx, dQ/dx - dP/dy)

Let's calculate the curl of the given vector field f:

∇ × f = (d(-8 cos(x))/dy - d(-cos(x))/dz, d((y + 8z + 7) sin(x))/dz - d((y + 8z + 7) sin(x))/dx, d(-cos(x))/dx - d((y + 8z + 7) sin(x))/dy)

Simplifying:

∇ × f = (0 - 0, 0 - (0 - (y + 8z + 7) cos(x)), 0 - (8 sin(x) - 0))

∇ × f = (0, (y + 8z + 7) cos(x), -8 sin(x))

Since the curl ∇ × f is not zero, it means that the vector field f is not conservative.

Therefore, the given vector field f = {(y + 8z + 7) sin(x), −cos(x), −8 cos(x)} is not conservative.

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Answer:

B: y >= 2

   y < x

Step-by-step explanation:

The system of equations is the equations of the two line

The flat line is constant (doesn't increase or decrease) and has a y-intercept at two, so the equation for it is y = 2. Notice the shaded region is above the line, and it is not a dotted line so it is y >= 2.

The second line has a y-intercept at 0 and seems to have a slope of 1, so the equation for it is y = x. Notice the shaded region is below the line, and it is a dotted line so it is y < x.

The quadrilateral with vertices (0, 0), (0, 4), (8, 4) and (8,0) makes the rectangle.

A rectangle is a part of a quadrilateral, whose sides are parallel to each other and equal.

The given points are,

(0, 0), (0, 4), (8, 4) and (8,0).

To determine the section for the quadrilateral,

Find distance between points.

The distance between two points A(x₁, y₁) and B(x₂, y₂)

Distance

= √(x₂ - x₁)² + (y₂ - y₁)²

The distance between (0, 0) and (0, 4)

= √(0-0)² + (4-0)² = √(0)² + (4)² = √(4)² = 4

The distance between (0, 4) and (8, 4)

= √(8-0)² + (4-4)² = √(8)² + (0)² = √(8)² = 8

The distance between (8, 4) and (8, 0)

= √(8 - 8)² + (0 - (4))² = √(0)² + (4)² = √(4)² = 4

The distance between (8, 0) and (0, 0)

= √(0 - 8)² + (0- 0)² = √(-8)² + (0)² = √(8)² = 8

Since, the opposite sides are equal,

Therefore, the quadrilateral is rectangle.

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Answer:

77

Step-by-step explanation:

Answer:

77 degress Farenheit

Step-by-step explanation:

Formula

(25°C × 9/5) + 32 = 77°F

The time spent volunteering is centered around approximately X hours. The values differ from the average by about Y hours.

To determine the center and the variation of a data set, we need specific values. Unfortunately, the values for the time spent volunteering and the corresponding average and deviation are not provided in the question. Hence, I cannot provide precise calculations for the center and variation.

However, if you have a dataset of time spent volunteering, you can calculate the center (typically represented by the mean or median) and the variation (often measured by the standard deviation or range) of the data.

The center of a dataset represents the typical or average value. If the data is symmetrically distributed, the mean is often used as the measure of center. If the data has outliers or is skewed, the median can be a more appropriate measure.

The variation of a dataset measures how spread out the values are from the center. The standard deviation provides a measure of the average amount that values deviate from the mean. The range represents the difference between the maximum and minimum values in the dataset.

Without specific values for the time spent volunteering and the average and deviation, we cannot determine the precise center and variation. However, calculating the center and variation of a dataset can provide valuable insights into the distribution and spread of the data, helping us understand the typical value and the amount of variability around it.

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Answer:

Not sure what the answer choices are, but choose the choice that says the new image is either stretched or shrunk. In a dilation, the shape/corresponding sides of the pre-image are preserved in the new image, but the size of the new image is altered.

Step-by-step explanation:

hope this helps!

Answer:

Step-by-step explanation:

You want two methods of choosing points on the line with slope 1/2 through A(-1, 2).

Writing the equation in standard form, we can find the x- and y-intercepts. To get there, we can start from point-slope form:

  y -k = m(x -h) . . . . . . line with slope m through point (h, k)

  y -2 = 1/2(x -(-1)) . . . . . using given slope and point

  2y -4 = x +1 . . . . . . . . . . multiply by 2

  x -2y =  -5 . . . . . . . . . . . . add -1 -2y

Setting x=0 tells us the y-intercept is ...

  0 -2y = -5

  y = -5/-2 = 5/2

So, the y-intercept is (0, 5/2).

Setting y=0 tells us the x-intercept is ...

  x -2(0) = -5

  x = -5

So, the x-intercept is (-5, 0).

It will be convenient to choose an arbitrary y-value to find another point on the line. We can pick y = 6, for example, Then the corresponding x-value is ...

  x -2y = -5

  x = -5 +2y = -5 +2(6) = 7

Another point on the line is (7, 6).

__

Additional comment

If we were to choose an arbitrary value for x, we would want it to be odd, so the corresponding y-value would be an integer. We chose to pick an arbitrary value of y so we didn't have to worry about how to make the x-value an integer.

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After rationalization the simplified form of the given expression is,

13 + 7√3.

The given expression is,

5+√3 / 2-√3

To rationalize its denominator,

We need to get rid of the radical in the denominator.

Multiply both the numerator and denominator by the conjugate of the denominator, which is 2+√3.

So, we have:

(5+√3) (2+√3) / (2-√3) (2+√3)

Since we know the identity:

(a-b)(a+b) = a² - b²

Therefore we get,

(5+√3) (2+√3) / (2²- (√3)²)

Expanding the numerator, we get:

(5x2 + 5√3 + 2√3 + 3) / (4 - 3)

Simplifying the numerator and denominator, we have:

(13 + 7√3) / 1

Hence, the simplified form of 5+√3 / 2-√3 is 13 + 7√3.

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The probability that a person has the disease given that his test result is positive is approximately 0.166 or 16.6%.

The Bayes theorem's assumption that the prior probabilities are known with certainty is one of its limitations. These probabilities, however, could not be known or be impossible to predict precisely in many real-world settings. Moreover, Bayes' theorem makes the assumption that each occurrence is independent, which may not necessarily be true in real-world circumstances.

Given that,

P(D) = 0.001

P(D') = 1- 0.001 = 0.999

P(T|D) = 0.99 (the test is 99% effective in detecting the disease)

P(T'|D') = 0.995

The Baye's theorem is given as follows:

P(A|B) = P(B|A) * P(A) / P(B)

Substituting the values:

P(T) = (0.99 * 0.001) + (0.005 * 0.999) = 0.00594

P(D|T) = (0.99 * 0.001) / 0.00594 ≈ 0.166

Hence, the probability that a person has the disease given that his test result is positive is approximately 0.166 or 16.6%.

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The complete question is:

if the confidence coefficient is 0.77,  implied probability of error α is  0.23.

The confidence coefficient is a measure of the reliability of a statistical estimate, often used in hypothesis testing. In hypothesis testing, we aim to estimate the probability of error, denoted as alpha (α). Given a confidence coefficient of 0.77, we can find the implied probability of error α by using the formula:

α = 1 - confidence coefficient

So, in this case:

α = 1 - 0.77 = 0.23

Therefore, the answer is 0.23, and option (A) 0.15 is not correct.

It is important to note that the confidence coefficient is often expressed as a percentage, for example, a confidence coefficient of 0.77 would be expressed as 77%.

This can lead to confusion when trying to determine the probability of error α, as it is often expressed as a decimal.

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Mean is 27 and SD is 2 then the normal curve ​with highest range would be at domain 27.

The mean is the average of a set of numbers. It is calculated by adding all the numbers in the set together, and then dividing by the number of values in the set.  It is calculated by adding up all the numbers in the set, dividing by how many values there are in the set, and then multiplying by that number. The average of a group of numbers is called the mean.

Mean is 27 and SD is 2

a) P(23<x<27)= P((23-27)/2<z<(27-27)/2)=P(-2<z<0)=P(z<0)-P(z<-2) or P(z<0)-(1-P(z<2))

From normal distribution table we get 0.5-(1-0.9772)=0.4772

b) P(x>31)=P(z>(31-27)/2)=P(z>2) or 1-P(z<2)=1-0.9772=0.0228

c) P(x<29)= P(z<(29-27)/2)=P(z<1)=0.8413

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Answer:

Step-by-step explanation:

The trick here is that the equation factors.

y= 2x^2 + 11x + 5

y = (2x + 1)(x + 5)

So either

2x + 1 = 0         subtract 1 from both sides      

2x = - 1             divide by 2  

2x = -1/2

or

x + 5 = 0          Subtract 5 from both sides

x = - 5

Answer: B and D

Answer:

m=120and k =60 hgfdfghjjh

Answer:

159 degrees

Step-by-step explanation:

If the entire line is 180 degrees then it is just,

180 - 21 = 159

The value of Absolute maximum are (a) 8, (b) -30.36, (c) -10 and the Absolute minimum are (a) -10, (b) -362.39, (c) -362.39.

We are given a function:f(x) = x³ - 12x² - 27x + 8We need to find the absolute maximum and absolute minimum values of the function f(x) over each of the indicated intervals. The intervals are:

a) Interval = [-2, 0]

b) Interval = [1, 10]

c) Interval = [-2, 10]

Let's begin:

(a) Interval = [-2, 0]

To find the absolute max/min, we need to find the critical points in the interval and then plug them in the function to see which one produces the highest or lowest value.

To find the critical points, we need to differentiate the function:f'(x) = 3x² - 24x - 27

Now, we need to solve the equation:f'(x) = 0Using the quadratic formula, we get: x = (-b ± √(b² - 4ac)) / 2a

Substituting the values of a, b, and c, we get:

x = (-(-24) ± √((-24)² - 4(3)(-27))) / 2(3)x = (24 ± √(888)) / 6x = (24 ± 6√37) / 6x = 4 ± √37

We need to check which critical point lies in the interval [-2, 0].

Checking for x = 4 + √37:f(-2) = -10f(0) = 8

Checking for x = 4 - √37:f(-2) = -10f(0) = 8

Therefore, the absolute max is 8 and the absolute min is -10.(b) Interval = [1, 10]

We will follow the same method as above to find the absolute max/min.

We differentiate the function:f'(x) = 3x² - 24x - 27

Now, we need to solve the equation:f'(x) = 0Using the quadratic formula, we get: x = (-b ± √(b² - 4ac)) / 2a

Substituting the values of a, b, and c, we get:

x = (-(-24) ± √((-24)² - 4(3)(-27))) / 2(3)

x = (24 ± √(888)) / 6

x = (24 ± 6√37) / 6

x = 4 ± √37

We need to check which critical point lies in the interval [1, 10].

Checking for x = 4 + √37:f(1) = -30.36f(10) = -362.39

Checking for x = 4 - √37:f(1) = -30.36f(10) = -362.39

Therefore, the absolute max is -30.36 and the absolute min is -362.39.

(c) Interval = [-2, 10]

We will follow the same method as above to find the absolute max/min. We differentiate the function:

f'(x) = 3x² - 24x - 27

Now, we need to solve the equation:

f'(x) = 0

Using the quadratic formula, we get: x = (-b ± √(b² - 4ac)) / 2a

Substituting the values of a, b, and c, we get:

x = (-(-24) ± √((-24)² - 4(3)(-27))) / 2(3)x = (24 ± √(888)) / 6x = (24 ± 6√37) / 6x = 4 ± √37

We need to check which critical point lies in the interval [-2, 10].

Checking for x = 4 + √37:f(-2) = -10f(10) = -362.39

Checking for x = 4 - √37:f(-2) = -10f(10) = -362.39

Therefore, the absolute max is -10 and the absolute min is -362.39.

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Because the sample statistic centers around a different value than the population parameter, the sample mean absolute deviation is a biased estimator of the population mean absolute deviation.

Reason Behind a Biased Estimator

The expected value (average) of all the sample absolute deviations must match the population absolute deviation in order for the absolute deviation to function as an unbiased estimator. It does not, however, which makes the values of sample mean absolute deviation behave as a  biased estimator.

Brief Description of Sample Mean Absolute Deviation

The average of the absolute deviations from a central point makes up the average absolute deviation of a data collection. It is a statistical summary of statistical variability or dispersion.

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Answer\(x=-\frac{1+\sqrt{55} }{9}\)\(x\neq 0\)

Step-by-step explanation:

1/x +3+ 1/x -3=6/x^2 -9

x+x=6-9x^2

x+x-6+9x^2=0

quadratic formula

Therefore , the solution of the given problem of expression comes out to be the simplified expression is (x + 2) / (x - 5)(x - 1).

There is a requirement for mathematical operations as addition, multiplication, and division. When combined, they produce the following: A mathematical operator, some data, and an equation A statement of fact contains values, parameters, and mathematical operations including additions, subtractions, multiplications, and divisions. It is possible to contrast and compare various sentences and words.

Here,

First, let's factor all the quadratics in the expression:

x^2 + 4x + 4 = (x + 2)^2

x^2 - 4 = (x + 2)(x - 2)

x^2 - x - 6 = (x - 3)(x + 2)

x^2 - 5x + 6 = (x - 2)(x - 3)

Now, we can rewrite the expression as:

[(x + 2)^2 / (x + 2)(x - 2)] * [(x - 2)(x - 3) / (x - 3)(x + 2)] * [(x + 2)(x - 3) / (x - 2)(x - 3)] * [(x - 2)(x - 3) / (x - 5)(x - 1)]

Notice that the (x + 2)(x - 3) terms cancel out in the numerator and denominator of the second and third fractions, respectively. Also, (x - 2)(x - 3) cancels out in the numerator and denominator of the third and fourth fractions, respectively.

Simplifying these terms, we are left with:

= [(x + 2) / (x - 2)] * [(x - 2) / (x - 5)(x - 1)]

= (x + 2) / (x - 5)(x - 1)

Therefore, the simplified expression is (x + 2) / (x - 5)(x - 1).

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Answer:

slope intercept form: -3x-6

Answer:

5

,

Step-by-step explanation:

The required lesser number is 5.

Answer:

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

Let the cost price of the camera be x.

When the selling price is 60000 there is a loss of 20%. Let's show this as equation and find the cost price:

The cost price is Rs 75000, and we need a profit of 12%, it gives us the selling price of:

Answer: A

Step-by-step explanation:

The coefficient of each x of each equation is the slope of that equation. So, you can find the slope of the lines.

For the red line, you see the line passes the (0, 2) point. It also passes (-4, -1). Since you have two points, you can find the slope. The slope is (y2-y1)/(x2-x1). Plugging these in, you get (-1-2)/(-4-0), which results in a slope of 3/4.

Now for this line, you can find the y-intercept to find the equation, which is where the line touches the y axis. This point is (0, 2). So, the equation for the red line is y = 3x/4 + 2, which is option A.

You don't need to find the equation for the blue line since all the other answers are incorrect.