A study found that there is no direct relationship between the time that 8th grade students spend brushing their teeth and their final math grade for the year. What is the correlation? positive , negative , no correlation

Answers

Answer 1

Answer:

no correlation

Step-by-step explanation:

because the teeth brushing had nothing to do with their grade, it would be no correlation.


Related Questions

Erik took out a loan for $8400 for 6 years at a compound interest rate of 5.5%-
How much interest does Erik owe from the loan?
$11,582.28
$108,084.86
$2,772
$3,182.28

Answers

Answer:

$2772

Step-by-step explanation:

Given data

Principal= $8400

Rate= 5.5%

Time= 6 years

The expression for the simple interest on the loan is found using the expression below

SI= PRT/100

substitute

SI= 8400*5.5*6/100

SI= 277200/100

SI= $2772

Hence the simple interest is  $2772

Answer:The answer is actually 3,182.28

Step-by-step explanation:

You are in your backyard with your pets. In one area, you count 108 legs. You count 41
animals. You have a combination of bunnies and chickens. How many of each type of animal do
you have?
Write a system of equations (make sure to define your variables first!), and then solve
this problem. Then, solve in a different way.

Answers

Answer:

Bunnies= 13    Chickens=28

Step-by-step explanation:

Let's put

x = bunnies------4 legs

y = chickens-----2 legs

x + y = 41----------------x= 41-y

4x+ 2y = 108

replace in 2nd equation

4(41 - y) + 2y = 108

164 - 4y + 2y = 108

2y = 56

y = 56/2= 28

x = 41 - 28= 13

Please Help me with the questions in the picture

Answers

Answer:

Dave and Anna:

1. Income highlight:

combined take home pay of $900/week

Total income: 4(900) - because 4 weeks in most months = $3600

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

2. Expense highlights:

bi-weekly mortgage of $675

property taxes of $1800

Car expenses $160

Car insurance: $128

House insurance: $35

Saving for kids: $200

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

Expense calculations:

Mortgage bi-weekly = 675 x 2 = $1350/month

Property taxes = 1800/12 months/year = 150/month

everything else is already monthly

1350 + 150 + 160 + 128 + 35 + 200 = 2,023

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

income - expenses

$3600 - 2023 = $1,577 surplus

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

Jacob:

Income highlights:

Canada Pension Plan $848/month

Old Age Security: $484/month

Total income: $1332

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

Expense highlights:

property tax: $3000/yr = $250/month

burial expenses: $100/month (for 6 more months)

golfing: $500/year = $41.67/month

bowling: $100/year = $8.33/month

Total expenses: 250 + 100 + 41.67 + 8.33 = 400

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

Income - expenses:

1332 - 400 = $932 surplus

Adult tickets to Space City Amusement park cost x dollars. Children's tickets cost y dollars. The Henson family bought 3 adult tickets and 1 child ticket for $163. The Garcia family bought 2 adult tickets and 3 child tickets for $174. Which equation represents the Hensons' cost?

Answers

3x+y=163 2x+3y=174

it should be like this {: and each point is one.

3x + y = $163
2x + 3y =$174

Kaley bought 5 boxes of pencils that contained 14 pencils each. She sharpened 20 of those pencils. How many pencils did Kaley buy? How many pencils are unsharpened?

Answers

Kaley bought 70 pencils and has 50 pencils left unsharpened

what does x = ?
please please help

Answers

Question

what does x = ?

please please help

5x(2x+20)= 90

10x=90-20

10x=70

x=70/10

x=7

plz give brainliest +thanks

Answer:

10°

Step-by-step explanation:

5x + 2x + 20° = 90° { Being complementary angles }

7x = 90° - 20°

7x = 70°

x = 70° / 7

x = 10°

Hope it will help :)❤

find the area of the base on prism

Answers

So length times width times height or V= bh

What is the volume of this rectangular prism?

Answers

Answer:

2/4 (simplified: 1/2)

Step-by-step explanation:

The formula for volume of rectangular prism is length · width ·

height.

In other words, multiply all of the sides together.

2 · 1 · 1/4 = 2/4.

Therefore, the volume of this rectangular prism is 2/4.

PLEASE HELP WILL GIVE BRAINLIEST!!!
There are 35 rows in an auditorium. The first row has 38 seats. Each row after that has three more seats than the previous row.
a) write an explicit formula that represents the number of seats in one of the rows.

b) How many seats are in row 25?

c) How many total seats are in the auditorium?

Answers

Answer:

b

please correct if wrong

Step-by-step explanation:

Randy is playing a number game. Beginning with the number 6, he adds 4, multiples by
5, and then divides by -10. He then subtracts 2. What number does he find at the end of
the game?

A. -7
B. -3.6
C. -4.6
D. -5

Answers

The answer for this is -3.6 you need to add them together then subtract!

Broccoli costs $1.50 per pound at a store. how much money does 32 ounces cost

Answers

Answer:

$ 3.00

Step-by-step explanation:

1 pound = 16 ounces

2 pounds will cost 32 ounces

2 x $ 1.50

= $ 3.00

what is the surface area of the cylinder?
A)176[tex]\pi[/tex] cm^2
B)376.8cm^3
C)376.8cm^2
D)120[tex]\pi[/tex] cm^2

Answers

Answer:

Step-by-step explanation:

A=2πrh+2πr2

Putting values

2(22/7)(4)(11) + 2(22/7)(4)^2

= 376.8cm^2

Option C is the correct answer

Can someone please solve these and explain how to do it. I'll give the brainliest to the best answer.

Answers

Answer:

5) 1/19x^6

6) 14a^3

7) 3/8

8) (3)/4s^3 r^8

Step-by-step explanation:

(-) exponents flip it to the other side of the bar

x^-6 = 1/x^6

With positive exponents, the exponent with the lower power subtracts from the higher power

The lengths, in minutes, of the movies currently showing at a movie theater are shown in the data set. ​ ​ ​ ​Create a histogram that represents the data. ​Drag the top of each bar to the correct height.

Answers

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the required lengths are not given.

I will use the following data set to answer the question.

[tex]Dataset: 35, 51, 39, 42, 68, 62, 32, 59[/tex]

First, is to determine the range of the dataset

[tex]Range = Highest - Least[/tex]

[tex]Range = 68 - 32[/tex]

[tex]Range = 36[/tex]

Next, we will make use of 4 classes. So, we divide range by 10 to get the number of class. 10 represents the interval

[tex]Class= Range/10[/tex]

[tex]Class = 36/10[/tex]

[tex]Class = 3.6[/tex]

[tex]Class \approx 4[/tex]

So, we use 4 classes

Plot the frequency distribution table as follows:

[tex]\begin{array}{ccc}{Intervals} & {Observations} & {Frequency} & {31-40} & {32,35,39} & {3} & {41-50} & {42} & {1} & {51-60} & {51,59} & {2} & {61-70} & {62,68} & {2}\ \end{array}[/tex]

See attachment for histogram

What is the point-slope form

Answers

the slope intercept form would be y=mx+b!

Solve for x.
B
37.
11
C

Answers

The answer is 18.28

I need math help fast plzzz

Answers

First I think it’s one
Second a little 9
Third a little 7
4. 1/a little 5
5.I’m not sure
6.a little 8 b little 4
7.not sure
8. A little 6

Find the shaded angle

Answers

Answer:

61.5°

Step-by-step explanation:

The triangle is isosceles , the radii are congruent , then the 2 base angles are congruent.

The vertex = 360° - 303° = 57

shaded angle = [tex]\frac{180-57}{2}[/tex] = [tex]\frac{123}{2}[/tex] = 61.5°

-1.52=3.8x

solve for x

Answers

Answer:

x = -0.4

Step-by-step explanation:

A theme park has a ride that is located in a sphere. The ride goes around the widest circle of the sphere which has a circumference of 558.92 yd. What is the surface area of the sphere?

Answers

Answer:

The surface area of the sphere is = [tex]99426.41 yd^2[/tex]

Step-by-step explanation:

The area of a sphere can be calculated using this formula:

[tex]A=4\pi r^2[/tex]

However, we have a little problem: we do not have our radius yet to utilize in the formula above.

We can get our radius from the circumference of the circle which has been given to us.

circumference = [tex]2 \times \pi \times r[/tex]

[tex]r = \frac{circumference}{2 \pi} = \frac{558.92yd}{2\pi} = 88.95yd[/tex]

We now have our radius. we can input it into equation 1 above

The Surface area of sphere = [tex]4 \times \pi \times 88/95^2 = 99426.41yd^2[/tex]

Express 0.35 ( non terminating recurring ) in the form of p/q ??​

Answers

Answer:

7/20

Step-by-step explanation:

[tex]0.35 = \frac{35}{100} = \frac{7}{20} [/tex]

Answer:

Step-by-step explanation:

Hello Dear!!!!

Here's your answer...

x=0.353535...

this is equation 1

multiply with 100

100x = 35.353535...

this is equation 2

equation 2 - equation 1

100x = 35.3535...

     x =    0.3535...

________________

99x = 35

x = 35/99

35/99 is the answer....

________________________________________

HOPE THIS HELPS YOU...

0.8 k - 20 = -60

what does ‘k’ equal?

Answers

Answer:

K = -50

Step-by-step explanation:

0.8(-50) - 20 = -60, because 0.8(-50) = -40, and when you subtract a negative you would "add" those numbers. So it would be 40 + 20 = 60, which would make it -60.

Answer:

k equals -50

Step-by-step explanation:

0.8 k - 20 = -60

0.8k = -60 + 20

0.8k = -0

k = [tex]\frac{-40}{0.8}[/tex]

k = -50

Each day Theo walks dog 15 minutes in the morning and 25 minutes in the afternoon evaluate the expression 7 x (15 + 25) to find how many minutes to theo dog each week

Answers

Answer:

280 minutes

Step-by-step explanation:

Given that :

Daily dog walk routine :

Minutes walked in the morning = 15

Minutes walked in the afternoon = 25

Number of days per week = 7

The number of minutes Theo walks dog per week :

Number of days per week * (minutes walked in the morning + minutes walked in the afternoon)

7 * (15 + 25)

7 * (40)

= 280 minutes

Find the distance between the points.
(5.10),(5,4)
The distance is

Answers

Answer: 6??

Step-by-step explanation: Cause they are right next to each other and if u want me to be more specific its 6 units down :)

Answer:

The distance will be √(x2-x1)^2+(y2-y1)^2

=√(5-5)^2+(10-4)^2

=√(0)^2+(6)^2

=√(6)^2

=6 units

Determine the domain and range:

Answers

Answer:

Option B is correct.

Step-by-step explanation:

Recall that the domain is the set of (unique) inputs and the range is the set of outputs (which do not have to be unique).

The set of inputs of the given relation is {-1, 9, -10, 1}, and this set is also found in Option B.  The set out outputs is {7, 2, 6, -6|, which is in Option B.

Find the area of the shaded region. Each shape is a square.

Answers

Answer:

the area of the 2in. one is 4in.²

the area of the 3in. one is 9in.²

the area of the 6in. one is 36in.²

Step-by-step explanation:

the formula for area of a square is a²

Select the correct product.
(x2 + 4x+8)(2x - 1)
0x2+6 x+7
O 2x2 -782-12 X-8
O2 x° +7 x2 + 12 x -8
0x2+8 -8

Answers

The answer is a hope it helps

At a bake sale, plates of cookies, p, are sold for $5 each. The amount of money from the sale of cookies is expressed as dollars, d. Which equation represents the earnings of the bake sale?

Answers

Correct Question:

At a bake sale, plates of cookies, p, are sold for $5 each. The amount of money from the sale of cookies is expressed as dollars, d. Which equation represents the earnings of the bake sale?

1. p = 5d  

2. d = p + 5

3. d = 5p

Answer:

3. d = 5p

Step-by-step explanation:

As one plate of cookies price is 5 $

The d is expressed as numbers of dollars which are earned.

Earnings = d = 5 x number of plates sold (p)

therefore

d = 5p

Answer:

d+p5

Step-by-step explanation:

2 4/8 - 1 3/4 pls help i got 1 min

Answers

I think 3/4 or 0.75 will be the answer

Answer:

1 1/8

Step-by-step explanation:

Plz 50 points im desperate
A show pony weighs at least 900 pounds. After a recent weigh in, the owner of a show pony amended the diet of his pony, increasing the animal's caloric intake, with the hope that the pony would gain weight to be shown in a few months. The data shown in the table and scatter plot below represents the pony's additional daily caloric intake and recorded weight gain (in pounds) of the show pony over the last ten weeks.
Additional Daily Calories Consumed Weight Gained

(in pounds)
1,500 3
1,575 7
1,650 3
1,725 4
1,800 8
1,875 9
1,950 13
2,025 7
2,100 17
2,175 15
Part A: Use the data shown in the table and scatter plot to create an approximate equation for the line of best fit.

Part B: In complete sentences, describe the show pony's weight gain in terms of the units used in the data.

Part C: According to the equation for the best fit line for the data, approximately how much weight would you expect the pony to gain in a week if its additional daily caloric intake for that week is 2,300 calories?

Answers

An approximate equation for the line of best fit is y-hat = 0.018x - 24.5111.

How to explain the equation?

A linear regression equation for the line of best fit would be y-hat = 0.018x - 24.5111 where

y-hat is the predicted value for the recorded weight gain (in pounds)

x is the additional daily caloric intake.

b) The pony's additional calorie intake increases, the weight gain also increases in pounds

c) Set x equal to 2300 and solve for y-hat:

y-hat = 0.018x - 24.5111

y-hat = 0.018(2300) - 24.5111

y-hat = 41.4 - 24.5111

y-hat = 16.8889

Therefore, the predicted value for the weight gain based on an additional 2300 calorie intake is 16.9 pounds.

Learn more about equation on:

https://brainly.com/question/2972832

#SPJ1

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