8th Algebra

Which of the following correlations would be an example of causation?


Question 1 options:


A. a positive correlation between the number of prisons in an area and the number of hospitals in that area



B. a positive correlation between the number of hours spent studying and the grade earned on a test



C. a negative correlation between the number of cell phones sold per year and the number of people born per year



D. a negative correlation between the amount of ice cream sales and the number of crimes committed in a city

Answers

Answer 1
Pls just say this is helpful I need points for my homework ;(

Related Questions

a teacher has 7 pack of 12 pencils and 2 packs of 54 pencils.the teacher shares these pencils out into 8 pencil pot.how many pencils with be in each pot?

Answers

Answer:

24

Step-by-step explanation:

(7*12)+(2*54)=
84+108=192

192/8= 24

Each pot should have 24 pencils.


Pls mark brainliest :)

7x + 10x + 20 = what​

Answers

Answer:

the answer is 17x+20

Step-by-step explanation:

7x+10x+20

17x+20

hope it helps

mark me brainliest pls

Answer:

17x+20

Step-by-step explanation:

like terms= 7x and 10x so add= 17x

unlike term 20 it remains as it is.

so 17x+20 further cannot be simplified as both are unlike terms

15 Which line passes through the point (1.-4)? A x + y = 5 B.X + y = 5 c.xy=5 D.x-y=.5​

Answers

Answer:

Step-by-step explanation:

A x + y = 5  1 + -4 = -3  Nope

B.X + y = 5  1 + -4 = -3  Nope  same as A unless X is somehow not equal to x,

C. xy = 5      1(-4) = -4    Nope and does not even qualify as a line.

D. x - y = .5​  1 - (-4) = 5 Nope unless you have a typo adding an unwanted decimal point

When reading a data set in ascending order (from smallest value to largest value), which of the following is the correct order of values that you would observe:


20th percentile, 1st quartile, 4th decile, median


30th percentile, median, third quartile, 6th decile


2nd decile, median, 1st quartile, 70th percentile


10th percentile, third quartile, median, 8th decile

Answers

Answer:

el equivalente a 23.79 no daré explicación

How many square meters are there in a floor that is 9 meters long by 12 meters wide?

Answers

Answer:108

Step-by-step explanation:

Answer:

108 square meters

Step-by-step explanation:

12*9=108

answer? (worth a lot of points.)

Answers

Answer:

Every 20th caller on "Radio Station Z" recieves a free give-away prize. Write an expression to show how many winners there will be. Let "x" represent the number of total callers and "y" represent the number of winners.

Step-by-step explanation:

Pls mark as brainliest

Hope this helps!

select the number that has the greatest magnitude
a.-17
b.-1
c.5
d.8

Answers

Answer:

-17 has the greatest magnitude .

Is (4,12) a solution to 2x+y=40

Answers

No.

2x + y = 40
2x = 40
x = 40/2
x = 20

1y = 40
x = 40/1
x = 40

The right solution is (20,40)

Lydia is having a barbecue. Two containers of juice serve 10 people. How many containers of juice should she get to serve 40 people at the barbecue?

Answers

Answer:

4 containers

Step-by-step explanation:

4 containers of juice x 10 people= 40 people to serve

Adam’s credit card calculates finance charges using the adjusted balance method and a 30-day billing cycle. The table below shows his use of that credit card over three months.

Date
Amount ($)
Transaction
4/1
626.45
Beginning balance
4/10
37.41
Purchase
4/12
44.50
Purchase
5/3
65.50
Payment
5/16
24.89
Purchase
5/20
104.77
Payment
6/6
23.60
Payment
6/10
15.00
Purchase
6/14
51.85
Purchase

If Adam’s credit card has an APR of 14.63%, what is Adam’s balance at the end of June?
a.
$629.42
b.
$629.66
c.
$627.27
d.
$628.40

Answers

Adam's balance at the end of June is $627.27

The adjusting balance method is used to determine the interest that would be paid by a credit card owner. The interest that would be paid is determined at the end of a period after all transactions have been adjusted for.

For example, if I have $100 in my credit card. If I buy a shoe worth $50 and deposit $20. My balance at the end of the month would be ($100 + $50 - $20) = $130.

Adam's balance can be determined by adding the amount he spent on purchases to the beginning balance and subtracting the payments he made.

$626.45 + $37.41 + $44.50 - $65.5 +$24.89 - $104.77 +$23.60 + $15 + $51.85 = $605.23

The balance at the end of the month would be the sum of the interest and the amount in his balance

Interest earned = balance x interest rate

Interest rate = 14.63% / 4 = 3.66%

Interest earned = $605.23 x 0.0366 = $22.14

Balance = $22.14 + $605.23 = $627.37

To learn more about the adjusting balance method, please check: https://brainly.com/question/2141275?referrer=searchResults

Answer:

C

Step-by-step explanation:

627.27. Just had it on my test

kohl's is having a sale on shoes where you can buy 4 pairs of shoes for $92. walmart is also having a sale where you can buy shoes for $23 each. who has the better deal on shoes ?

Answers

4 x 23 = 92

four shoes cost $92 at Wallmart, but its the same at kohl's

wallmart price = kohl's price

                $92 = $92

they are equal

Help have 2 hrs to complete

Answers

It’s 0.68 pls give me brainliest

Find The value of X in a supplementary angle pair.
Help much appreciated!

Answers

DM me for better explanation but this isn’t that hard
Just think 96+(x-30)=180 degrees you can drop the parenthesis and add 96 with 30 to get 126 then subtract 180 with 126 to get 54 degrees

A bird park has black and white birds in the ratio of 8 to 2 as shown below:



What is an equivalent ratio for black birds to white birds? Explain how you arrived at your answer in complete sentences.

Answers

Answer:

4:1

Step-by-step explanation:

So, although the ratio 8:2 is technically correct, it is not in its simplest form. To get it into its simplest form you need to find the largest multiplying factor that is the same for both numbers. In this case, 2 is the largest factor because it goes into both 2 and 8. Now, you need to divide the entire ratio by 2 the reach the simplest form, so 8 divided by 2 equals 4, and 2 divided by 2 equals 1. This gives us our final ratio of 4:1.

1. John has 2 options to use gym facilities in his community.
Plan A:
$3 hourly rate.
Plan B:
$2 hourly rate plus $2 entrance fee per visit during off peak hours.
$4 hourly rate with discount $1 per visit during peak hours.
If John chooses plan A, how many hours he has to use the gym facilities per trip,
a. during off peak hours
b. during peak hours
in order to make his payment cost effective (Payment to be lower than plan B). Give a
conclusion for questions above.

Answers

Answer:

B

Step-by-step explanation:

because its even better when u see it be doing math

Tyler ate 7 hot dogs in 4 minutes. At this rate, how long would it take him to eat 23 hot dogs? Write a proportion, then solve. Round to the nearest tenth.

Answers

(7 hot dogs)/(4 minutes) = (23 hot dogs)/(x minutes)

7/4 = 23/x

7x = 4*23 .... cross multiplication

7x = 92

x = 92/7

x = 13.142857 approximately

x = 13.1

Answer:  13.1 minutes (approximate)


Please help me I need to pass math

Answers

Answer:

it is the 3rd option because with negatives it is flipped.

Step-by-step explanation

-6/8 is actuall -.625

-3/5 is -.6

-7/13 is .538...



pls help!!! i don’t know how to do this .

Answers

Answer:

-30 ,-2

5, -3

hope it will.help u

Following the October 15, 2019, fourth Democratic debate, Drudge Report ran an online poll on its website and asked readers who won the debate. A total of 208,001 votes were cast, with Gabbard receiving 79,881 votes (38%), Yang receiving 37,944 votes (18%), Buttigieg receiving 25,337 votes (12%), Warren receiving 14,405 votes (7%), Kloubachar receiving 13,142 votes (6%), Biden receiving 11,246 votes (5%), Steyers receiving 7,791 votes (4%), Sanders receiving 7,672 votes (4%), and the remaining candidates each receiving 1% or fewer votes. The sample size for this poll is much larger than is typical for polls such as the Gallup Poll. Explain why the poll may give unreliable information about the voting population, even with such a large sample size.

Answers

Although the sample size for the poll is much larger than is typical for polls such as the Gallup Poll, the poll may give unreliable information about the voting population, even with such a large sample size, due to the following reasons:

First, it is an online survey, where the interviewer does not decide who to interview and, therefore, the sample from which the result is obtained has not passed through the necessary heterogeneity filters. Second, because even in the case of a large number of people, since these voters are voluntary, there is no certainty that their responses are objective or neutral, which affects the final result.

Learn more in https://brainly.com/question/1590463

find the product of 3.7 and 0.47​

Answers

Answer:

[tex]1.739[/tex]

Step-by-step explanation:

We know that [tex]3.7=37/10[/tex].

We also know that [tex]0.47=47/100[/tex].

The product of these is [tex]37/10*47/100=(37*47)/1000=1739/1000=1.739[/tex].

So, the answer is [tex]\boxed{1.739}[/tex]

Look at the pictuse below i would copy and paste but I can't copy a picture

Answers

Answer:

15

Step-by-step explanation:

The constant of proportionality is 15 books per shelf.

If you look at the graph, you can see that for every 1 shelf, there are 15 books. For 1 shelf, there are 15 books, and for 2 shelves, there are 30. And the pattern continues.

Let me know if you have any questions, thanks!

Check all solutions to the equation. If there are no solutions, check "None."
W = 4




Someone help!!

Answers

Answer:

A) 2

Step-by-step explanation:

The square root of 4 is 2 because 2 x 2 = 4.

The equation says x = 4, and what your trying to solve is the square root of that, not the root. The root to 4 would be 16 if it was reversed.

-kiniwih426

Evaluate the function for
f(x) = x + 3 and g(x) = x2 − 2.
(f − g)(8t)=

Answers

Answer:

f(0)=0

Step-by-step explanation:

(First correct answers get brainliest or a lot of points)
0.5 divided by -0.667 times 0.75 minus 0.8
Good luck!

Answers

Answer:

I believe that it is −1.3622188906

Hello everyone i need ur help to factor out this in a easy way.

Answers

9514 1404 393

Answer:

  (x -1/4)(x -1)(x +1)

Step-by-step explanation:

Pairs of coefficients have the same ratio, so it is likely that you can factor this by grouping pairs of terms.

  x³ -x -1/4x² +1/4 = (x³ -x) -(1/4x² -1/4) . . . . . . note the signs

  = x(x² -1) -1/4(x² -1)

  = (x -1/4)(x² -1)

The difference of squares (x² -1) is a special form that has factors (x -1)(x +1)

Your factoring is ...

  (x -1/4)(x -1)(x +1)

_____

Additional comment

The difference of squares factors like this:

  a² -b² = (a -b)(a +b)

if sn = 1395 a = 3 and d = 3 find and =?​

Answers

Answer:

Simplify:=-1

Step-by-step explanation:


What’s the domain and range ?

Answers

Answer:

2,5 I'm guessing

Step-by-step explanation:

because two up and five to the right even though its kinda blurry

Factor x⁴ + 3x² + 2 completely.

All factors in your answer should have integer coefficients.

Answers

Answer:

x = i, ~1.41i

Step-by-step explanation:

Assuming "integer coefficients" allows imaginary numbers:

(x^2 + 1)(x^2 + 2)

x^2 = -1 = i

x^2 = -2 = ~1.41i

Kenhitis tines
6. Selena picked eight baskets of tomatoes. Her sister threw away one of
the baskets due to bruising. What percent were good?

Answers

Answer:

87.5%

Step-by-step explanation:

Total baskets = 8Good baskets = 8 - 1 = 7

Percent of good:

7/8*100% = 87.5%

Total number of baskets of tomatoes = 8

Her sister threw away = 1

Number of baskets that are good = 8 - 1 = 7

Percentage of good baskets =

=> 7/8 × 100%

=> 87.5%

Therefore, The percentage of good baskets is 87.5%

Through (2, 1) with slope of -3/2

Answers

Equation: Y= -3/2x + 4

Graph:
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