The regression equation is given by y^ = -389 + 130x^ and the symbol y^ represents the predicted value of price.
It is given to us that -
x = ratings
y = y-intercept
It is also given that the regression equation has -
Slope = 130
y-intercept = -389
We have to find out -
(a) the equation of the regression line
(b) what symbol y represents
We know that, regression analysis is used to predict continuous variables explained by single or multiple independent or explanatory variables.
There are various regression techniques that can be used to create predictive models, including simple regression, multiple regression, and logistic regression.
Here, we have -
Slope = 130
y-intercept = -389
(a) So, the regression equation can be represented as -
y^ = -389 + 130x^
(b) The symbol y^ is the dependent variable in the regression equation. Here, the symbol y^ represents the predicted value of price.
Thus, the regression equation is given by y^ = -389 + 130x^ and the symbol y^ represents the predicted value of price.
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1/4x+y = -1
a) Determine the line's x-intercept, algebraically.
b) Determine the line's y-intercept, algebraically.
c) Identify the line's slope.
d) Graph the line using the line's intercepts.
Answer:
a) x int: (-4,0)
b) y int : (0,-1)
c) -(1/4)
d) file uploaded
Step-by-step explanation:
\(▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)
let's solve :
a.) The equation is :
\( \dfrac{1}{4} x + y = - 1\)at point of x - intercept, value of y - coordinate is 0, so let's put y = 0 in the equation to find x - intercept.
\( \dfrac{1}{4} x + 0 = - 1\)\(x = - 1 \times 4\)\(x = - 4\)so, value of x - intercept = -4, the point will be (-4 , 0)
b.) At y - intercept value of x - coordinate is 0, so let's put x = 0 in the equation to find y - intercept.
\( \dfrac{1}{4} \times 0 + y = - 1\)\(y = - 1\)value of y - intercept = -1, the point will be (0 , -1)
c.) let's find slope :
\( \dfrac{y2 - y1}{x2 - x1} \)\( \dfrac{0 - ( - 1)}{ - 4 - 0} \)\( - \dfrac{1}{4} \)d.) Let's graph the line using points (0 , -1) and (-4 , 0)
graph in attachment ~
The equation x^3-5x=59 has a solution between 4 and 5. Use a trial and improvement method to find this solution. Give your answer to one decimal place. You must show all your working. On the same line as your final answer, you must write to "1 decimal place".
Answer:
The answer is "4.3".
Step-by-step explanation:
Given:
\(\to x^3 - 5x - 59 = 0\)
When \(x = 4.1:\)
\(\to f(4.1) = (4.1)^3 - 5(4.1) - 59 = -10.579\)
When \(x= 4.2:\)
\(f(4.2) = 4.2^3 - 5(4.2) - 59 = -5.912\)
When \(x = 4.3:\)
\(\to f(4.3) = -0.993\) (closer to 0)
\(\to f(4.4) = 4.184\)
It changes the sign so, the root lies in 4.3 and 4.4.When \(x = 4.35:\)
\(\to f(4.35) = 1.563\)
When the root is closer to 4.3 than 4.4 So, 1.563 is closer to zero than 4.184.
When \(x = 4.32:\)
\(\to f(4.32) = 0.0216\) close to zero.
So the answer is 4.3 to 1 decimal place.
If a customer service representative changes the way she envisions her job, from recording complaints from customers to being an advocate for customer rights, she engages in which form of job crafting
If a customer service representative changes the way she envisions her job, shifting from recording complaints to being an advocate for customer rights, she engages in the form of job crafting known as task crafting.
Job crafting involves employees making changes to their job roles or tasks to align them more closely with their values, strengths, and motivations. In this scenario, the customer service representative is redefining her role from simply recording complaints to actively advocating for customer rights.
This represents task crafting, where the employee modifies the tasks and responsibilities associated with their job.
By taking on the role of a customer rights advocate, the representative seeks to go beyond the traditional boundaries of their position and make a positive impact on customer experiences and satisfaction.
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which are the slope and the y-intercept linear function that is represented by the graph?
Answer:
See explanation
Step-by-step explanation:
The question is incomplete, as the graph is not given.
The general step to calculate slope and y intercept is as follows;
Assume any two points on the graph are:
\((x_1,y_1) = (5,1)\)
\((x_2,y_2) = (1,4)\)
The slope (m) is:
\(m = \frac{y_2 -y_1}{x_2 - x_1}\)
\(m = \frac{4 -1}{1-5}\)
\(m = \frac{3}{-4}\)
\(m = -\frac{3}{4}\)
The equation of the graph is:
\(y = m(x - x_1) + y_1\)
This gives:
\(y = -\frac{3}{4}(x - 5) + 1\)
\(y = -\frac{3}{4}x +\frac{15}{4} + 1\)
\(y = -\frac{3}{4}x +\frac{15+4}{4}\)
\(y = -\frac{3}{4}x +\frac{19}{4}\)
To calculate the y intercept; set \(x = 0\)
\(y = -\frac{3}{4}*0 +\frac{19}{4}\)
\(y = \frac{19}{4}\) ---- y intercept
Classify these functions as even, odd, or neither
F(x) = 4x^3 - 3x^2 + 5
F(x) = -7x^2+1
y = cos (-x)
y = csc x
y = tan x / x
y = sin x/cos X
Pls help
Step-by-step explanation:
F(x) = 4x^3 - 3x^2 + 5 neither
F(x) = -7x^2+1 even
y = cos (-x) even
y = csc x odd
y = sin x/cos x odd
When mutex lock is implemented as a binary semaphore, what should its value be initialized to be?
a) 0
b) 1
c) -1
d) none of the above
please help me with this, i need to get it done tn
find the length of the arc of the circle diameter 14 meters subtenmeded by the central angel of 5pi/6
The length of the arc of the circle diameter 14 meters subtended by the central angle of 5π/6 is 35π/6 meters.
To find the length of the arc of the circle diameter 14 meters subtended by the central angle of 5π/6, we need to use the formula to find the arc length.
The formula to find the length of the arc of a circle is given as:
S = rθ
where S is the length of the arc, r is the radius of the circle and θ is the central angle subtended by the arc.So, the length of the arc of the circle diameter 14 meters subtended by the central angle of 5π/6 can be found by substituting the values in the above formula.
Solution:
S = rθ
where r = d/2 = 14/2 = 7m, and θ = 5π/6 m Putting the values in the above formula we get:
S = (7)(5π/6)= 35π/6 m
Hence, the length of the arc of the circle diameter 14 meters subtended by the central angle of 5π/6 is 35π/6 meters.
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you are asked to construct the bisector of
You should have started the building on the opposite ray; you started it on the incorrect ray. It divides R into two parts
How do you construct a bisector of an angle?Draw an arc across both of the angle's rays beginning at the vertex.Draw a new set of intersecting arcs from each pair of existing arcs.The angle bisector is created by drawing a line from the vertex to the intersection.
A line that bisects or splits an angle into two equal halves is called an angle bisector. If the angle's measurement is known, all we would need to construct an angle bisector geometrically is a ruler, pencil, compass, and protractor. An angle bisector can cut any angle in half.Make an arc that touches both sides. Place the cursor where the arc meets the horizontal side. On the inside of the angle, make a second arc mark.
The correct answer is option d)You started the construction the wrong ray, you should have started on the other.
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The perimeter of a parallelogram is 52 meters. The width of the parallelogram is 2 meters less than its length. Find the length and the width of the parallelogram.
Answer:
length = 14 metres, width = 12 metres
Step-by-step explanation:
let x be length
length = x
width = x-2
perimeter of parallelogram = 52
length + length + width + width = 52
x+x+x-2+x-2=52
4x-4=52
4x=56
x=14
length = 14 metres
width = 14 - 2 = 12 metres
Answer:
P=2(l+w)
or, 52=2(l+l-2)
or, 52=4l-4
or, 56 =4l
therefore length=14m
therefore breadth=l-2=12m
Elise's big brother works at Amazon and used 675 pounds of packing material to ship 450 packages. At this rate, how many pounds of packing material were needed to ship each package?
Therefore, each package will weigh about 1.5 pounds.
Hoped this helped.
\(BrainiacUser1357\)
determine the unit normal vector to the curve with vector equation \vec r \, (t) =<1^t,\ln(4/t^2), \, \ln(e/(t^4)) > r (t)=<1 t ,ln(4/t 2 ),ln(e/(t 4 ))> at the point where t=2t=2.
the unit normal vector to the curve with vector equation \vec r \, (t) =<1^t,\ln(4/t^2), \, \ln(e/(t^4)) > r (t)=<1 t ,ln(4/t 2 ),ln(e/(t 4 ))> at the point where t=2t=2 is \vec n = <0,0,-1>
A unit normal vector is a normal vector with magnitude 1, and it points in the direction that is perpendicular to the tangent to the curve at a given point.
To determine the unit normal vector to a curve, it's important to find the tangent first and then find the normal. In this case, we're looking for the unit normal vector to the curve with the vector equation \vec r (t) =<1^t,\ln(4/t^2), \ln(e/(t^4)) > at the point where t = 2.
To find the unit normal vector to the curve with the vector equation \vec r (t) =<1^t,\ln(4/t^2), \ln(e/(t^4)) > at the point where t = 2, it is necessary to find the tangent to the curve and then find the normal. This is a crucial step in understanding the geometry of curves in 3D space.
To find the tangent to the curve, we'll differentiate the vector equation with respect to t and evaluate it at t = 2. The derivative of \vec r (t) is given by:
d\vec r/dt = <1, -2t^-3, -4e^-t^-4>
So the tangent to the curve at t = 2 is:
d\vec r/dt = <1, -2(2)^-3, -4e^-2^-4> = <1, 1.5, -1.648721>
Next, we'll find the normal to the tangent by taking the cross product of the tangent with a fixed vector, for example, the unit vector i = <1,0,0>. The cross product of two vectors results in a vector that is perpendicular to both of them.
The cross product of the tangent and the unit vector i is given by:
\vec T x \vec i = <1, 1.5, -1.648721> x <1,0,0> = <0,0,-1.5>
Since the magnitude of the normal is not 1, we'll normalize it by dividing it by its magnitude:
\vec n = \vec T x \vec i / ||\vec T x \vec i|| = <0,0,-1.5> / ||<0,0,-1.5>|| = <0,0,-1>
So the unit normal vector to the curve with the vector equation \vec r (t) =<1^t,\ln(4/t^2), \ln(e/(t^4)) > at the point where t = 2 is given by:
\vec n = <0,0,-1>
This is the unit normal vector that points in the direction that is perpendicular to the tangent to the curve at t = 2. The magnitude of 1 ensures that it's a unit vector and the direction points towards the normal direction.
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Find the area of the shape shown below.
Answer:
the answer is 32
Step-by-step explanation:
brainliest?
a line containing the points (4,4) and (8,9)
Answer:
im assuming slope : 5/4 is slope
Step-by-step explanation:
the formula (y₂ - y₁) / (x₂ - x₁) is how you get slope. plug stuff in and you get (9 - 4) / (8 - 4) and thats 5/4
Answer:
y=1.25x-1
Step-by-step explanation:
Hope this helps! PS I'm not assuming anything
If x is an even number then what’s the next even number ?
Answer:
2x
Step-by-step explanation:
an even number is a number EXACTLY divisible by 2
therefore if x is an even number the next is X times 2 which is 2x
Answer:
x+2
Step-by-step explanation:
Two cow gauri and bindiya are grazing in a field they are tethered uing end of ame rope fixed at point O gauri move from a to b and bindiya move from c to d total area grazed by the cow i 10 pie m q. Length of robe i 12 cm
The total distance traveled by the cows are 3.58 meters. To calculate that we need to calculate fourth area before.
It sounds like you are trying to solve a problem involving two cows grazing in a field and the area that they graze. Here is a possible solution:
First, draw a diagram to represent the situation. Let O be the point where the rope is fixed, and let A and B be the points where Gauri moves between. Similarly, let C and D be the points where Bindiya moves between. Draw the lines connecting these points to form four sides of a quadrilateral.Next, measure the lengths of the sides of the quadrilateral. Since the total area of the quadrilateral is 10 square meters, and the length of the rope is 12 cm.We can use the formula for the area of a quadrilateral to solve for the fourth side:
Area = (1/2) x (12 cm) x (fourth side)
Solving for the fourth side, we get:
Fourth side = (20 cm)/(12 cm) = 1.67 meters
Finally, add up the lengths of the four sides to find the total distance traveled by the cows:
Total distance = (1.67 meters) + (12 cm) + (1.67 meters) + (12 cm) = 3.58 meters
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A stop sign is in the shape of a regular octagon with a side length of 8 inches and an apothem of 9.5 inches. What is the area pf the stop sign
choices
608 in^2
456 in^2
304 in^2
228 in^2
Answer:
ldk
Step-by-step explanation:
Answer:
304 in^2
Step-by-step explanation:
to find the area of the octagon (basically a regular polygon) you need to use this formula.
area of octagon = perimeter × apothem/2
a = 64 × 9.5/2
a = 608/2
a = 304
all u have to do now is add ur units and boom, ur answer is 304 in^2!
Which of the following statistics could you find given the information above (see
question #1)? Select all that apply.
mode
range
standard deviation
interquartile range
The statistics you could find given the information above (see attachment) include the following:
range.standard deviation.interquartile range.What is a box and whisker plot?A boxplot is also referred to as box and whisker plot and it can be defined as a type of chart that can be used to graphically represent the five-number summary of a data set with respect to locality, skewness, and spread.
In Mathematics, the five-number summary of any box and whisker plot include the following:
MinimumFirst quartileMedianThird quartileMaximumFor the range, we have:
Range for women = 150 - 0 = $150
Range for men = 35 - 0 = $35
For the standard deviation, we have:
Standard deviation for women = range/4
Standard deviation for women = 150/4 = 37.5
Standard deviation for men = range/4
Standard deviation for men = 35/4 = 8.75.
For the interquartile range, we have:
Interquartile range = third quartile - first quartile.
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Find the distance between the two points rounding to the nearest tenth (if necessary). (8,−4) and (−1,−2)
Answer:
9.2 units
Step-by-step explanation:
You want to know the distance between the two points (8,−4) and (−1,−2).
Distance formulaThe distance between points (x1, y1) and (x2, y2) can be found using the distance formula.
\(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
ApplicationUsing the given point coordinates, we find the distance to be ...
\(d=\sqrt{(-1-8)^2+(-2-(-4))^2}=\sqrt{(-9)^2+2^2}=\sqrt{85}\)
A calculator tells you this value is about 9.22.
The distance is about 9.2 units.
1. 5 + x = -2
2. 8m = 48
Solve this problems giving brainliest
Answer: 1. x=-7 2. m=6
Step-by-step explanation:
1. 5 + x=-2
to get the x by itself, you need to subtract 5 from both sides
5-5 +x = -2-5
there for 0 + x = -7 which means x=-7
2. to get 8m to just m, you need to divide 8m by 8. and what you do to one side of the equation, you need to do to the other. therefore 8m/8=48/8 and 48/8=6. therefore m=6
Answer:
1. 5+x=-2
x=-2-5
x= -7
2. 8m=48
m= 48/8
m= 6
Please Mark BRAINLIEST as promised!
Model a desert community where 19% of the area is
desert and the rest is houses.
squares represent the area of the community
that is desert.
The area of the community that is houses is
represented by squares.
Answer: the first one is 19 and the second is 81.
Savvas Realize
Alabama has 140 legislators, for 4 million people. If another state has 12 million people living in it, how many legislators would it have? How do you know?
Answer: 420 legislators
Step-by-step explanation:
For this problem, we would have to multiply.
If Alabama has 140 legislators for 4 million people, we know the unit rate is:
\(140\) legislators for \(4\) million people.
So, we have to multiply 140 by 3 because 12 is 3 times the amount of 4, and the other state has 12 million people.
140 x 3 = 420
The answer to the question would be 420.
Answer:
420
Step-by-step explanation:
I set this up as a proportion of 140/4,000,000=x/12,000,000. Then you can cross multiply, getting 1,680,000,000=4,000,000x. Divide both sides by 4,000,000 and you get x=420. Please mark brainliest if this helped!
Please help me im not sure how to do this problem.
Answer:
Step-by-step explanation:
Interior Angle to a Circle Theorem.
X° = 1/2 (130° + 142°)
x° = 1/2 (272°)
x° = 136°
can someone help me pls
answer chocices
a.80
b.180
c.100
d.90
Answer:
<1= 100°
Step-by-step explanation:
<1=<5 Corresponding angles are equal
To find <5
180-80=100
Therefore <1=100
35°
46"
65"
30"
2x
What is the perimeter? This is a little tougher problem,
and to solve it you'll need to know the lengths of the
segments on either side of the perpendicular height
(which is whyt I gave you the numbers in smaller font).
Submit
The perimeter of the triangle is 170 inches.
How to calculate the valueTo solve for the perimeter, we first need to find the length of the perpendicular height. We can do this using the sine function:
sin(35°) = 46/x
x = 46/sin(35°) = 65 inches
Now that we know the length of the perpendicular height, we can find the length of the base of the triangle using the cosine function:
cos(35°) = 65/x
x = 65/cos(35°) = 75 inches
The perimeter of the triangle is the sum of the lengths of the three sides, so the perimeter is:
P = 65 + 75 + 30
= 170 inches
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The ratio of scrambled eggs to hard-boiled eggs served at a restaurant is 6: 2. Find the number of hard-boiled eggs when the restaurant serves 15 scrambled eggs.
Answer:
Its 15/2 but something is probably wrong with the question.
Step-by-step explanation:
h is hard boiled eggs. s is scrambled eggs. s/h=6
15/h=6
15=6h
h=15/6=5/2 Something is probably wrong with the question because who would serve 1/2 of a egg.
A bird is flying south at a rate of 45 miles per hour while being pushed east by wind with a speed of 12 miles per hour.
What is the direction of the bird's resultant vector? Hint: Draw a vector diagram.
Ө 0 = [ ? ]°
Round your answer to the nearest hundredth
Step-by-step explanation:
Use the arctan function
tan Φ = 45/12
Φ = arctan ( -45/12) = 75 degrees south of east = 165 degrees on the compass
Which of the Stack methods will add an int to the top of x?
a. x.pop(int 42);
b. x.append(int 42);
c. x.enqueue(int 42);
d. x.top(int 42);
e. x.push(int 42);
The method that will add an int to the top of x in a stack data structure is the "push" method. Therefore, the correct option is:
e. x.push(int 42);
The "push" method adds an element to the top of the stack, increasing the size of the stack by one. The element pushed onto the stack becomes the new top of the stack. The other options listed do not correctly implement the behavior of adding an element to the top of a stack.
- The "pop" method removes and returns the top element of the stack.
- The "append" method is typically used to add elements to a list or an array, not a stack.
- The "enqueue" method is typically used in a queue data structure, not a stack.
- The "top" method returns the top element of the stack without removing it, but it does not add a new element to the stack.
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When cooper was 15 years old, he scored an 85 on an iq test. he took the test again when he was 35 years old and scored an 85 again. this indicates that the iq test is highly: __________
Answer:
When cooper was 15 years old, he scored an 85 on an iq test. he took the test again when he was 35 years old and scored an 85 again. this indicates that the iq test is highly: __________
Reliable
Because his scores were so close together the test would be considered as Reliable.
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Jacob office recycled a
total of 42 kilograms of
paper over 7 weeks. After
11 weeks, how many
kilograms of paper will his
office had recycled?
Answer:
66 kg
Step-by-step explanation:
Answer:
66 kg
Step-by-step explanation:
We know that in a total of 7 weeks, the office recycled 42 kg of paper.
We are asked to find how many kgs of paper were recycled after 11 weeks, (if the paper over each week was consistent, respectively)
To do this, we first need to know how much paper was recycled in 1 week.
Total amount of paper/weeks
42/7
=6
So, 6 kg of paper was recycle each week.
Now, we need to know how much paper was recycled after 11 weeks:
11·6
=66
So, 66 kg of paper was recycled after 11 weeks.
Hope this helps! :)