Mathematics Middle School

Use the given data to find the best predicted value of the response variable.

The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is Ten pairs of data were used to obtain the equation. The same data yield r = 0.863 and

What is the best predicted job performance rating for a person whose attitude rating is 77? Use α = 0.05

88.9

12.6

80.1

90.2

Answers

Answer 1
80.1

Just makes sense
Answer 2

Answer:

80.1

Step-by-step explanation:

Related Questions

The gasoline consumption of a bus is 30l/100km and of a car is 9l/100km. To go on a 250 km trip, 30 people can either go by car with 5 people in each car or take one bus for all 30 people. Which method of transportation uses less gasoline, and how much less?

Answers

Answer:

The bus will take less consumption and by 60 litre

Bus uses less gasoline by 601.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Case 1: Bus

Consumption/ 100Km= 301

and, for 250 Km= 301 /100 x 250

                          = 751

Case 2: Car

Total = 80 people

Total cars= 30/5 = 6

Consumption/ 100Km= 91

and, for 250 Km= 91 /100 x 250

                          = 22.51

Consumption by 6 cars = 6 x 22.51 = 1351

Difference between Gasoline Consumption = 1351-751 = 601

Learn more about Unitary Method here:

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Solve for M, please
2m - 6 ≥ - 2

Easy 61 points

Answers

[tex]\\ \sf\longmapsto 2m-6\geqslant -2[/tex]

[tex]\\ \sf\longmapsto 2m\geqslant 4[/tex]

[tex]\\ \sf\longmapsto m\geqslant 4/2[/tex]

[tex]\\ \sf\longmapsto m\geqslant 2[/tex]

Which of the following is equivalent to the expression 8(2y + 5)​? Select all that apply.

Answers

Answer: the answer is A and B

Step-by-step explanation: trust me

Answer:

A and B

Step-by-step explanation:

8 times 2 is 16 but since 2 is 2y you add the (Y) to the 16 too making 16y and so 8 times 5 is 40

Pls help me this is so hard

Answers

9x2 /3 = r

if the stick is 9m long 2 sticks is 9x2 then divided by 3. the answer would be r
6m
First u multiply 9*2=18
Then u divide 18/3=6

Help Quick!!

Solve for X

−3.5=−4.6x−5.1

Enter your answer as a fraction in simplest form in the box.

Answers

x=8/23
i just did it on paper

The solution of the expression will be;

⇒ x = - 8/23

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ - 3.5 = - 4.6x - 5.1

Now,

Solve the expression as;

The expression is,

⇒ - 3.5 = - 4.6x - 5.1

Solve for x as;

⇒ - 3.5 + 5.1 = - 4.6x

⇒ 1.6 = - 4.6x

⇒ -4.6x = 1.6

⇒ x = 1.6 / - 4.6

⇒ x = - 16/46

⇒ x = - 8/23

Thus, The solution of the expression will be;

⇒ x = - 8/23

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Henry is standing on a building at an elevation of 10 feet above sea level.

His friend, Thomas, is scuba diving -12.5 feet below sea level.

Which friend is FARTHER from sea level?

Henry

Thomas

Answers

Thomas is the farther one
Thomas because -12.5 feet below is a greater number than 10 feet above.

Can somebody shade this for me? Thank you!

Create and shade a number line that shows the following inequality. Make sure to label at least 3 numbers on the number line, put an open circle, and shade to the left or to the right.

-11 > x

Answers

Answer:

Hope this below ss is right:

The formula for finding SA, the surface area of a box, is SA = 2(ab + ac + bc), where a, b, and c represent the lengths of each edge of the box.

What is the surface area of this box if a = 10 in., b = 5 in., and c = 3 in.?

Answers

Answer:

The actual answer is 190 in squared

Step-by-step explanation:

Because I got it right on the website

Ill give brainiest to whom ever gets this correct

Answers

Answer:

D. 9/3

Step-by-step explanation:

The answer will be d.9/3

pls help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The answer is 14 because -2 x -7 = 14. If you didn’t already know a sum is the value given when two or more numbers are multiplied together and the reason -2 and -7 multiply to get 14 is because the negatives cancel each other out to create a positive.
it’s just -9 since 2 + 7 is 9, but they’re opposite signs so it’ll be (-2) + (-7) = -9. The signs don’t change since both numbers are negative

PLEASE HELP QUICK I HAVE LIKE 7 MINS
Choose the scatter plot that suggests a linear relationship between x and y.

Answers

The third one i think
Graph C.


good day brethren

i need help wit this! ASAP

Answers

Answer:

If there are 50 dimes, then that equals to 5 dollars (or $5), and the product of 8 and 9 is 72.

Step-by-step explanation:

8×9=72.

50 dimes = $5.

PLEASE HELP ILL GIVE BRAINLY THIS IS TIMED!

Answers

No solution
Because that is the wrong way to write it
Trust me

Answer:

No solution

Step-by-step explanation:

Help pleaseeeeeeeee!!!

Answers

If it has a line underneath then it’s gon be a closed circle but if it has no line on the sign it’s gon be an open circle then which ever way it goes shade that like if it’s less that shade to the left if it’s greater than shade to the right

what is the answer to this easy problem? POINT GIVEAWAY

Answers

Answer:

d = 0.29

Step-by-step explanation:

2.61 divided by 9 = 0.29

d = 0.29

Answer:

0.29

Step-by-step explanation:

hope it helps

would appreciate brainliest

please help me with this math :)

Answers

Answer:

The X is equal to 1.75

Step-by-step explanation:

3.5X2.25=7.875

14/7.875=1.75

Answer: x=1.75

Step-by-step explanation:

rearrange the term: 3.5 (2.25 + x) = 14

the new term: 3.5 (x + 2.25) = 14

Combine multiplied terms into a single fraction, then distribute.  

x = 1.75

10 points: The bookstore has 2 women's magazines and 8 other magazines. What percentage of the magazines at the bookstore are women's magazines?

10 points if solved, will give brainliest to the correct answer.

Answers

Answer:   20%

Step-by-step explanation:

2/10 is 20%

20%
2+8=10 Total (Denominator)
2(Numerator) what we are being asked
2/10 is 20%!

Can Someone Give Me Graph Points I'm So Confused:
The equation d=rt is used to calculate distance, rate, or time, where d is the distance (in feet), r is the rate (in feet per second), and t is the time (in seconds). Consider the statements below that describe the running rates for three people. Graph the equation that represents the rate of the fastest person.

Payton runs for 20 seconds and goes 380 feet.
Jaime runs at a rate of 20 feet per second.
Nguyen runs 450 feet in 25 seconds.

Answers

Answer: 60

Step-by-step explanation:

To make orange fizz, Noah mixes 4 scoops of powder with 6 cups of water. Andre mixes 5 scoops of powder with cups of water. Create a double number line or a table that shows different amounts of powder and water that taste the same as Noah’s mixture.

Answers

Answer:

This should help

Step-by-step explanation:

Please help me! I will give brainliest to best answer!

Answers

Answer:

Both numerator and denominator can be divided by 3.

Explanation:

Find the HCF of 18 and 21. Now, it's 3.

Answer:

3

Step-by-step explanation:

Both of them are in the table of 3 so 18/3 = 6 and 21/3 = 7

So the fraction will be = 6/7

That's your answer

HELP PLEASE WILL BE MARKED BRAINLIEST

Invent a new term for "dwarf planets" and explain why the term is appropriate.

Answers

Answer:

Eris

Step-by-step explanation:

The new term for dwarf planets will be called Eris, after the Greek goddess of discord. Eris's moon is named Dysnomia, the demon goddess of lawlessness and the daughter of Eris.  It is appropriate because the object had been an planet for so long, it deserved a name from Greek or Roman mythology, like other planets.

Answer:

Mini Planets

Step-by-step explanation:

If dwarf planets are small so are mini stuff thats why the term is appropriate.

After sales tax, A $96 watch costs $101.28. what is the sales tax percentage?

Answers

Answer:

i think it's 5.5 percent

Answer: The answer is 5.5% sales tax percentage

Step-by-step explanation:

First, subtract the total amount by the original amount

$101.28-$96= 5.28

Next, you would divide 5.28 by 96

5.28/96 = 0.055

The final part in which to get the answer is to multiply 0.055 with 100%

0.05·100= 5.5%

Combine the like terms to create an equivalent expression:

-3z - z

Answers

Hello there! :)

-3z-z

-4z

We can always add and subtract like terms (same variables)

Hope it helps!

If you have any query, feel free to ask me! :)

~A gloomy gal

[tex]MagicalNature[/tex]

Answer:

-4z

Step-by-step explanation:

-3 and -1 are like terms because they have the same variable

-3 - 1 = -4

I shall assist you with a question if you help me.

Answers

[tex]2x^2-3x-1 -(3x^2 +5x)\\\\=2x^2 -3x -1 -3x^2-5x\\\\=-x^2-8x-1[/tex]

Answer: B (-x^2-8x-1)

You don’t need to help me, by the way. :)

Hope this helped!!

Help with Questions 4 and 5!
Will mark Brainliest for the best and accurate answers!

Answers

question 4 is A

question 5 is 43.6

question 5 showing work

how I would figure it out is 151-20 =131

then I would divide it by 3 for each day

_

131÷3=43.6

Answer:

131÷3=43.6

Step-by-step explanation:

Match the scale and area of each scaled object to the area of the actual object.
Tiles
scale: 1 inch to 2 feet
scaled area: 3 square inches
scale: 1 inch to 3 feet
scaled area: 3 square inches
scale: 1 inch to 2 feet
scaled area: 4 square inches
scale: 1 inch to 3 feet
scaled area: 4 square inches

Pairs
Actual Area
actual area:
36 square feet

actual area:
27 square feet

actual area:
12 square feet

actual area:
16 square feet

Answers

Answer:

Step-by-step explanation:

scale: 1 inch to 2 feet

scaled area: 3 square inches

+

actual area:

27 square feet

scale: 1 inch to 3 feet

scaled area: 4 square inches

+

actual area:

36 square feet

scale: 1 inch to 3 feet

scaled area: 3 square inches

+

actual area:

12 square feet

scale: 1 inch to 2 feet

scaled area: 4 square inches

+

actual area:

16 square feet

A hot-air balloon is 1200 feet off the ground and its altitude is slowly changing at a constant rate of −712 feet per second.
How many seconds, s, will it take for the balloon to drop to below 310 feet?

Answers

It will take 2 seconds

Explanation:
1200-712= 488
488-712= -224
It will take 2 seconds

The model represents an equation. What value of x makes the equation true?

Answers

Answer:

D

Step-by-step explanation:

Answer:

4/7

Step-by-step explanation:

Which proportion can be used to find 180% of 45?

Answers

Answer:

well 1st take the hundred percent out because u already know that 100% of 45 is 45 so now just find 80% of 45 which is 36 so add 45 + 36= 81 so 180% of 45 is 81

Step-by-step explanation:

Answer:

81 is the number, the proportion given below

Step-by-step explanation:

45 ⇒ 100%x ⇒ 180%

Use proportion below:

x / 45 = 180 / 100x = 45*180 / 100x = 81

Tamika earns $15.00 per hour working for a landscape company plus $10 for lunch. She uses function e = 15h + 10 to track her daily earnings where e represents earnings while h represents number of hours. Make an input and output table, graph your results, and determine if the function has a proportional relationship. Explain.

Answers

Answer:

here

Step-by-step explanation:

imput    output

1             25

2            40

3            55

and so on

all you got to do is  keep going by 15

hope it helps :D

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