Some students in a school were surveyed to determine how many hours they study per night and their grade-point averages. The results are shown in the table.

If the data are entered into a regression calculator, what is the approximate y-intercept of the resulting regression line?

–1.76
–0.63
0.63
1.76

Some Students In A School Were Surveyed To Determine How Many Hours They Study Per Night And Their Grade-point
Some Students In A School Were Surveyed To Determine How Many Hours They Study Per Night And Their Grade-point

Answers

Answer 1
It appears either the teacher provided the calculator result or you did so yourself. Either way, the regression equation is approximately y = 0.628x + 1.759

The equation is in slope intercept form y = mx+b
m = slope = 0.628
b = y intercept = 1.759 

The value 1.759 rounds to 1.76 which is the answer
Answer 2
1.76 is the answer
:)

Related Questions

Which word is an antonym for the word thrive?

Jasper knew we was going to thrive in his new school
A) fail
B) learn
C) worry
D) be busy

Answers

The antonym for the word thrive would be A. Fail Hope this helps :)


The required antonym for the word thrive is fall. Option A is correct.

The word "thrive" means to prosper, succeed, or flourish. Therefore, the antonym for "thrive" would be a word that represents the opposite, such as "fail." When someone fails, they do not achieve success or prosper in their endeavors. In the given sentence, Jasper is confident that he will thrive in his new school, indicating that he expects to do well and succeed. Choosing the word "fail" as the antonym creates a clear contrast, as it represents the opposite outcome of not being able to thrive or achieve success.

Thus, the requried antonym for the word thrive is fall. Option A is correct.

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8182÷k=1363.6666667

A- 9
B-2
C-6

Answers

The answer is C, 6.

2 would be around 4000, and 9 would be less than 1000, so C is the only one
The answer is C)6
Hope this helps!
PLEASE MARK BRAINLIEST!

Find the radius of a circle that has an area of 100π ft2

Answers

radius equation- π r ^2

radius=10 ft

At a local used car lot, one out of every three cars is red. If the car lot had 54 cars on it, how many cars are red SHOW WORK PLZ

Answers

Number of cars = 54

Number of red cars = 1/3 x 54 = 18

Answer: There are 18 red cars
Final answer:

To determine how many cars in the lot are red, we need to find one-third of the total number of cars. In this case, we are told that one out of every three cars is red, so the probability of a randomly chosen car being red is 1/3. The calculation is: Number of red cars = 54 * (1/3) = 18 cars.

Explanation:

To determine how many cars in the lot are red, we need to find one-third of the total number of cars. In this case, we are told that one out of every three cars is red, so the probability of a randomly chosen car being red is 1/3.

To calculate how many cars out of 54 are red, we can multiply the total number of cars by the probability of a car being red:

Number of red cars = 54 * (1/3) = 18 cars

Therefore, there are 18 cars that are red in the lot.

Different sizes of ribbon need to be cut to go around various shapes. All of the following sizes are in inches. π , √5 ,√8 ,2√5
(a)Without using your calculator, approximate the decimal equivalent of each number to the nearest tenth.
(b)Order the ribbon sizes from least to greatest. Use the original numbers given.

Answers

(a) To approximate [tex] \pi [/tex], we are going to use a compass to draw a cirle of radius 2 and circumference 12.5. Remember that [tex] \pi [/tex] is the ratio between the circumference of a circle and its diameter; since the diameter of a circle is two times its radius, we can find [tex] \pi [/tex] using the equation: [tex] \pi = \frac{cricunference}{2*radius} [/tex]
[tex] \pi = \frac{12.5}{2(2)} [/tex]
[tex] \pi = \frac{12.5}{4} [/tex]
[tex] \pi =3.125[/tex] 
And to the nearest tenth:
[tex] \pi =3.1[/tex]

To approximate [tex] \sqrt{2} [/tex], we are going to use the Babylonian method:
Step 1. We are going to make a guess. Our guess is 2 because [tex] \sqrt{4} =2[/tex], so [tex] \sqrt{5} [/tex] must be close to 2.
Step 2. We are going to divide 5 by 2: 
[tex] \frac{5}{2} =2.5[/tex]
Step 3.  We are going to find the average between our initial guest and the result of our previous calculation:
[tex] \frac{2+2.5}{2} = \frac{4.5}{2} =2.25[/tex]
And to the nearest tenth: [tex] \sqrt{5} =2.2[/tex]

To approximate [tex] \sqrt{8} [/tex], we are going to use the Babylonian method one more time:
Step 1. Our guess is 3 because [tex] \sqrt{9} =3[/tex], so [tex] \sqrt{8} [/tex] must be close to 3.
Step 2. We are going to divide 8 by 3:
[tex] \frac{8}{3} =2.6[/tex]
Step 3.  We are going to find the average between our initial guest and the result of our previous calculation:
[tex] \frac{3+2.6}{2} = \frac{5.6}{2} =2.8[/tex]
[tex] \sqrt{8} =2.8[/tex]

To approximate [tex]2 \sqrt{5} [/tex] we are going to multiply our approximation of [tex] \sqrt{5} [/tex] and multiply it by 2:
[tex]2 \sqrt{5} =2*2.2[/tex]
[tex]2 \sqrt{5}=4.4[/tex]

(b) Since we have our irrational numbers expressed as decimal approximations, we can compare them to arrange them form least to greatest:
2.2,2.8,3.1,4.4
Now, we just need to replace the decimal approximations with the original numbers:
[tex] \sqrt{5} [/tex],[tex] \sqrt{8} [/tex],[tex] \pi [/tex],[tex]2 \sqrt{5} [/tex]

We can conclude that ordering the ribbon sizes from least to greatest we get:
[tex] \sqrt{5} [/tex],[tex] \sqrt{8} [/tex],[tex] \pi [/tex],[tex]2 \sqrt{5} [/tex]

The area of the base of the regular quadrilateral pyramid is 36 cm2 and the area of a lateral face is 48 cm2. Find: Surface area of the pyramid

Answers

Answer:

The surface area of the pyramid is [tex]228\ cm^{2}[/tex]

Step-by-step explanation:

we know that

The surface area of the Pyramid is equal to

[tex]SA=B+LA[/tex]

where

B is the area of the base of the pyramid

LA is the lateral area of the pyramid

In this problem we have

[tex]B=36\ cm^{2}[/tex]

Find the lateral area LA

Remember that the lateral area is the area of its four lateral faces

so

Multiply the area of a lateral face by 4 (because is a regular quadrilateral)

[tex]LA=(4)(48)=192\ cm^{2}[/tex]

Find the surface area SA

substitute the values

[tex]SA=36+192=228\ cm^{2}[/tex]

The surface area of the pyramid is 228 square cm.

What is the regular quadrilateral pyramid?

A pyramid is a three-dimensional shape. A pyramid has a polygonal base and flat triangular faces, which join at a common point called the apex.

The area of the base of the regular quadrilateral pyramid is 36 cm2 and the area of a lateral face is 48 cm2.

The surface area of the pyramid is;

[tex]\rm Surface \ area=B + LA[/tex]

Where; B is the area of the base of the pyramid, LA is the lateral area of the pyramid.

The area of a lateral face by 4 (because is a regular quadrilateral) is;

[tex]\rm LA=4(48)=192[/tex]

Substitute all the values in the formula;

[tex]\rm Surface \ area=B + LA\\\\\rm Surface \ area=36+192\\\\\rm Surface \ area=228[/tex]

Hence, the surface area of the pyramid is 228 square cm.

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I don’t know I need help fast

Answers

the answer is 3 kilometers

Part a) What do you know that will help you set up the equation to solve this problem?

Part b) Write the equation that allows you to solve for the height.

Part c) What is the height of the trapezoid (including units)

Answers

A) You know the formula for the area of a trapezoid is ...
  A = (1/2)(b₁ +b₂)×h


B) You are given the area and the lengths of the two bases. Substituting the given numbers into the formula will give you an equation for h.
  280 cm² = (1/2)(8 cm +20 cm)×h


C) Solving the equation of part B, we have
  280 cm² = (14 cm)×h
  280 cm²/(14 cm) = h . . . . . . . . divide by the coefficient of h
  20 cm = h . . . . . . . . . . . . . . . .. evaluate

The height of the trapezoid is 20 cm.

Which one is bigger 11 g or 10,800 mg

Answers

11 g is bigger then mg hope this helps

Factor by grouping Ab+4+a+4b

Answers

Answer:

Factor by grouping Ab+4+a+4b

[tex](b+1)(a+4)[/tex]

Step-by-step explanation:

Factor by grouping:

[tex]ab+4+a+4b[/tex] (1)

We have some common terms, the term a and the number 4: [tex]ab+a+4+4b\\a(b+1)+4(b+1)[/tex]:

Now, we have other common term, (b+1)

[tex]a(b+1)+4(b+1)\\(b+1)(a+4)[/tex]

A small submarine starts at –1,260 feet in relation to sea level. Then it descends 5 feet per minute for 12 minutes. What is the new position of the submarine in relation to sea level? –1,260 + (–5)(12) = –1,260 + 60 = –1,200

Answers

The submarine is at -1260 ft.
It descends 5 ft/min for 12 min.
12 min * 5 ft/min = 60 ft.
It descended 60 ft, so you must subtract 60 ft from -1260 ft.
-1260 ft + (-5)(12) ft = -1260 ft - 60 ft = -1320 ft

The error in the last line in the problem is that (-5)(12) = -60, not 60.
The correct line is:
-1260 + (-5)(12) = -1260 - 60 = -1320

The new position of the submarine in relation to sea level is -1,200 feet.

Your calculation is correct. To find the new position of the submarine in relation to sea level after descending at a rate of 5 feet per minute for 12 minutes, you can use the formula:

New position = Initial position - (Rate of descent * Time)

In this case:

New position = -1,260 feet - (5 feet/minute * 12 minutes)

= -1,260 feet - 60 feet

= -1,200 feet

So, the new position of the submarine in relation to sea level is -1,200 feet.

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Adam is making a rectangular frame. The frame is 24.2 feet long and 16.25 feet wide.

The formula for the area of a rectangle is A=bh.

What is the area of the frame?

Enter your answer as a decimal in the box.

(__ ft2

Answers

let
b-----> the length of the base of the rectangle
h-----> the length of the width of the rectangle

we know that
Area of the rectangle=b*h
in this problem
b=24.2 ft
h=16.25 ft
so
area=24.2*16.25-----> area=393.25 ft²

the answer is
the area of the frame is
393.25 ft²
393.25 Have a nice day! please tell me if im wrong so i can improve!

–3x + 1 + 10x = x + 4

Answers

-3x+1+10x=x+4
1+7x=x+4
6x=3
x=.5
Alright so I will solve and explain as I go :)

First, let's combine like terms.

-3x + 1 + 10x = x + 4
7x + 1 = x + 4

Now,  subtract the one from the left. (we do this to combine terms)

7x + 1 = x+ 4
7x = x + 3

Now subtract the x from the right. (this is also to combine terms)

7x = x + 3
6x = 3

Finally, divide by 6 on both sides.

6x = 3
x = 1/2 or 0.5

Hope this helps!


What is the smallest 9 digit number ni the form, aaa,aaa,aaa such that is divisible by 9??
Plz help!!

Answers

The smallest 9-digit number in the form aaa,aaa,aaa that is divisible by 9 is 111,111,111 because the sum of its digits is 9, which follows the divisibility rule for 9.

To find the smallest 9-digit number in the form aaa,aaa,aaa that is divisible by 9, we need to use the divisibility rule for 9. A number is divisible by 9 if the sum of its digits is also divisible by 9. Since we are looking for the smallest such number, we start with the smallest non-zero digit, which is 1.

The smallest 9-digit number where all digits are the same would be 111,111,111. Adding all the digits together, 1+1+1+1+1+1+1+1+1 equals 9, which is divisible by 9. Therefore, 111,111,111 is the smallest 9-digit number of the form aaa,aaa,aaa that is divisible by 9.

PLEASE HELP! EASY 10 POINTS

Answers

53.13 is the correct answer




good luck

I NEED HELP I WILL GIVE BRAINLEST!!!!!!!!!!!

Answers

The answer is 81 because if we plug in 9:

9^2  * 9^0

We know that anything to the zero power is one, so we are left with

9^2 which equals 81

If the height of your he sailboat is 3 centimeters, what is the height in meters, of the actual boat

Answers

Is there a ratio? bc that doesnt look like the full question
if there is no proportion, then 4,5 meters.4,5:3=1,5(coefficient)

A recent poll taken by the movie theatre industry shows that 28% of the population attends a movie in a theater at least once a month. A sample of 300 people shows that only 12% of people attends a movie in a theater at least once a month. To determine whether this sample supports the population proportion of 0.28, a simulation of 100 trials is run, each with a sample size of 200 and a point estimate of 0.12. The minimum sample proportion from the simulation is 0.10, and the maximum sample proportion from the simulation is 0.28. What is the margin of error of the population proportion using half the range?

Answers

Answer:

The margin of error for this population proportion using half the range = ±0.09

Step-by-step explanation:

Confidence Interval is basically an interval of range of values where the true proportion can be found with a certain level of confidence.

Margin of Error is the width of the confidence interval about the central proportion.

For this question, the minimum sample proportion from the simulation is 0.10, and the maximum sample proportion from the simulation is 0.28, hence, the confidence interval for the question is (0.10, 0.28).

The width of this confidence interval = (Upper limit of the interval) - (Lower limit of the interval) = 0.28 - 0.10 = 0.18.

Hence, the margin of error for this population proportion using half the range, is 0.18/2 = 0.09.

Written appropriately as ±0.09.

Hope this Helps!!!

shari has 1 1/2 gallons of orange juice. She wants to serve the orange juice equally among her 12 friends. How many ounces of juice will each friend receive

Answers

So there are 128 ounces in a gallon.
So half a gallon would have 64 ounces
Now it says Shari has 1 1/2 which means we would add 128 ounces and 64 ounces together to get 192 ounces.
1 1/2 gallons = 192 ounces
Now we take the 192 ounces and divide it into 12 because she has 12 friends to share with.
192/12 = 16 ounces
Each friend with get 16 ounces of orange juice.

you are about take an 8 question multiple choice test .each of these questions has 4 answers (A,B,C,D). how many ways can you answer the test if you leave an answer for each question

Answers

[tex] 4^8=65536 [/tex]

4^8 = 65536 answer is correct

can anyone help me please

Answers

i would say "B" but im not always Right

The function rule for the following graph is y = 2x + 2. What is the value of y in the ordered pair (2, y)? 24 4 10 6

Answers

i think the answer is 6

Answer:

The correct answer is 6.

Step-by-step explanation:

I just did this question as well and 6 was the correct answer. Hope this helped :)

What is the range of the function graphed below?

Answers

C) All real numbers.
Answer:

Option: C is the correct answer.

The range of the function which is graphed is:

                  C.  All real numbers.

Step-by-step explanation:

Domain of a function--

The domain of a function are the set of all the possible x values for which the function is defined.

Range of a function--

The range of a function are the set of all the possible values which are attained by a function in it's defined domain.

By looking at the graph of the given function we observe that the function is strictly increasing and it takes all the real values i.e. it takes all the values from (-∞,∞).

Hence, the answer is: Option: C

Find the coordinate that divides the directed line segment from A(-2,-4) to B(8,1) in the ratio of 2 to 3

Answers

we have that
A(-2,-4)  B(8,1) 

let
M-------> the coordinate that divides the directed line segment from A to B in the ratio of 2 to 3

we know that

A--------------M----------------------B
        2                     3
distance AM is equal to (2/5) AB
distance MB is equal to (3/5) AB
so

step 1
find the x coordinate of point M
Mx=Ax+(2/5)*dABx
where
Mx is the x coordinate of point M
Ax is the x coordinate of point A
dABx is the distance AB in the x coordinate
Ax=-2
dABx=(8+2)=10
Mx=-2+(2/5)*10-----> Mx=2

step 2
find the y coordinate of point M
My=Ay+(2/5)*dABy
where
My is the y coordinate of point M
Ay is the y coordinate of point A
dABy is the distance AB in the y coordinate
Ay=-4
dABy=(1+4)=5
Mx=-4+(2/5)*5-----> My=-2

the coordinates of point M is (2,-2)

see the attached figure

Describe the effect on the SURFACE AREA of multiplying the dimensions by 1/5.

Answers

Surface area changes by the square of the linear dimension scale factor. Multiplying the dimensions by 1/5 will multiply the surface area by (1/5)² = 1/25.

what is the equation of a circle with a center located at (4,-1) and a radius of 9

Answers

The equation for a circle with the given information would be (x - 4)^2 + (y + 1)^2 = 81.

This is because the base form of a circle is:

(x - x1)^2 + (y - y1)^2 = r^2

In which, x1 is the x coordinate of the center and y1 is the y coordinate of the center. r is the radius of the circle. So we plug in to those and simplify.

(x - 4)^2 + (y - -1)^2 = 9^2

(x - 4)^2 + (y + 1)^2 = 81

Y = 4x + 2 y = x + 5 on a graph

Answers

[tex]\left\{\begin{array}{ccc}y=4x+2\\y=x+5\end{array}\right\\\\y=4x+2\\for\ x=0\to y=4(0)+2=2\to(0;\ 2)\\for\ x=-1\to y=4(-1)+2=-4+2=-2\to(-1;-2)\\\\y=x+5\\for\ x=0\to y=0+5=5\to(0;\ 5)\\for\ x=-5\to y=-5+5=0\to(-5;\ 0)\\\\\text{Look at the picture}\\\\Answer:\ x=1;\ y=6\to(1;\ 6)[/tex]

what is the square root of 50 to the nearest tenth

Answers

7.07 so I think you'd leave it at 7 for your answer
The answer is 7.07. You can use your calculator!

John's dog weighted 7 pounds when we got him. The dog's weight tripled each year for two years. How many ounces does John's dog now weigh?

Answers

21 pounds

7 pounds x 3(tripled) = 21 pounds
If the dog weighed 7 pounds at first then its times 3 for each year for 2 years.
7*3*3=63 pounds and converting pounds to ounces, 63 pounds is 1,008 ounces.

Can someone help with this please??

Answers

4, 5 & 6 were answered on another question plus the circle isn't shown on this one.

7. semi circle is half a circle, there re 4 arcs smaller then half
 they are DB, DC, AC and AB

last choice is correct

Other Questions
Kendra is very polite to her teacher and her mother. when she speaks to her younger brother, she tends to be rude and condescending. she is much nicer to him when her mother and father are present than when they are alone. kendra understands: How MIGHT a war with a country that is a member of OPEC impact citizens living around you? A)gas prices may increase due to a rise in price of crude oil B)pharmaceutical exports dip as a result of increased tensions C)the sale of foreign cars decreases due to an increase in tariffs D)the automobile industry suffers due to a decrease in auto part exports Share 450 in the ratio of 4:5 Which set of ordered pairs could be generated by an exponential function?(0, 0), (1, 1), (2, 8), (3, 27)(0, 1), (1, 2), (2, 5), (3, 10)(0, 0), (1, 3), (2, 6), (3, 9)(0, 1), (1, 3), (2, 9), (3, 27) What is the location of the sensory structures that translate things you see into nerve impulses? A. On the retina B. On the cornea C. In the cochlea D. In the olfactory bulb Solve x^2 +14x = -24 by completing the square. Which is the solution set of the equation? suzie divided a 3-pound bag of apples into 2 equal piles. How many lbs of apples are in each pile Which of the two substances would have the higher boiling point ch4 or c? Slavery was key to the Southern economy. Why do you think slave owners treated their slaves so cruelly often to the point they could not work? Suppose you are investigating how the day ends hamsters affect how much they run on the hamster wheel. In order to control the experiment which of these should you do? A. Change only the diet of each hampster.B. Give all the hamsters the exact same diet.C. Only allow some hampsters to run on the wheel.D. Compare the behavior of hamsters and gerbils According to lanier what motive did eve have for tasting of the tree of knowledge The tires on your bicycle have a radius of 8 inches. How many rotations does each tire make when you travel 700 feet? Round your answer to the nearest whole number. The first major Red Scare in American history took place during the decade of the _____. 1910s1920s1930s1940s What is the remainder when the positive integer n is divided by 12 ? (1) when n is divided by 6, the remainder is 1. (2) when n is divided by 12, the remainder is greater than 5? Identify the type of communication illustrated in the quotation."Hmmm. Let's see. I know I've solved one of these before. To figure out this problem, I need to use the formula for the area of a circle."A. intrapersonalB. interpersonalC. small group communicationD. public communicationE. mass media While studying chemical and physical changes, students added salt to a glass of water. They stirred the salt until it dissolved and could no longer be seen. "That's a chemical change," Sarah stated. Do you agree? Explain. A)Yes, it is a chemical change because something new is formed. B)No, it is a physical change. It is salt and water and you can get the salt back by boiling off the water. C)Yes, it is a chemical change because there was a change in the appearance of one of the components, the salt. D)No, it is a physical change. A chemical change cannot occur when you mix two compounds together like salt, NaCl, and water, H2O, without adding heat. Read the excerpt from a poem by Edgar Allan Poe. TO ONE IN PARADISE Thou wast all that to me, love, For which my soul did pine- A green isle in the sea, love, A fountain and a shrine, All wreathed with fairy fruits and flowers, And all the flowers were mine. Which best explains the metaphor in this poem? The speaker worships the subject of the poem. The subject of the poem is actually a place. The speaker is infatuated with a statue. The speaker's love was unrequited. What is sin (51)?Answer Choices : 1.23 , 0.63 , 0.51 , 0.78 Which is a plan for spending and saving? Question 3 options: a will a budget a savings account a checking account The volume of a cube is 8 cubic units. What is the length of each edge? Explain how u know.