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

Victor buys 4 sleeves of golf balls. He has coupons for $0.75 off the regular price of each sleeve. After using the coupons, the total cost of the golf balls is $11. What is the regular price of each sleeve of golf balls?

Answers

Each sleeve was $3.50

His coupon is for .75 off each sleeve. He got four sleeves, so you’d multiply .75 x 4 to get 3.

Then add 3 + 11 to get the total price he would have paid without the coupon (14).

Then divide 14 by 4 (the number of sleeves he bought) to get 3.50

Status
Recovery
ZABD and ZDBC are supplementary angles.
What is the measure of x?
X = [?]°
7D
110%
AK
B.
→C
Angles are not drawn to scale.
Enter

Answers

Answer:

jhbujnhjnv

Step-by-step explanation:

vnjhbjhbjmb

Answer:

x=70°

Step-by-step explanation:

x+110=180 linear pair

x=180-110=70

help me pls i don't have many points pls help if you don't believe me go to my acc and look at my points i only have 13

Answers

Answer:

1. 14

2. 17.5

3. 60

4. 238

5. 91.4375

6. 58.065

Step-by-step explanation:

Sorry, I'm only doing 6, GOOD LUCK!!!

If you deposit $300 a month into an account that accredits you 3% compounded monthly, how much money will you have in your account after 25 years?
A. $112,430
B. $133,800
C. $122,653
D. $98,902

Answers

Compound interest is the interest generated on a sum of money invested. The amount of money that you will have in your account after 25 years is  $122,653

How to calculate the compound interest?

Compound interest is the interest generated on a sum of money invested. The formula for calculating compound interest is expressed as:
A = P(1+r/n)^nt

Given the following parameters

Principal P = $3600 (a year)
rate r = 0.03
Time  t = 25 years

n  = 12 (time of compounding)

Substitute

A = 3600(1 + 0.03/12)^12(25)
A = 3600 (1.0025)^300
A = 3600(2.1150)
A = $122,653

Hence the amount of money that you will have in your account after 25 years is  $122,653

Learn more on compound interest here: https://brainly.com/question/24274034

I know...another one

Answers

I'm so confused what do you need help with?

help please ! need asap

Answers

Answer:

x° = 139

step 1 :

180 - (37 + 38)

= 180 - 75

= 105°

step 2 :

180 - 105

= 75°

step 3 :

180 - 116

= 64°

step 4 : this step to find the value of x

x° = 180° - (64 + 75)°

= 180° - 139°

= 41

x° = 41

#CMIIW

Find the MEDIAN
48 28 43 87 15 65 73 82 7 33 90

Answers

Answer:

48

Step-by-step explanation:

help pls What is the measure of ∠x
Angles are not necessarily drawn to scale. Given the following:

Answers

Answer: 31

Step-by-step explanation:

assuming lines DE and FG are parallel, <jcg and <DAL are alternate exterior angles, so they are congruent.

<DAK is 90

so the measure of <x=90-59

x=31

Help me please. I need it rn​

Answers

Answer:

We have

selling price=Discount + sales price

discount=discount rate×selling price.

discount=discount /selling price ×100%

Sales price =selling price - discount

Mark of price=mark up price rate ×original price

Selling price:mark of price + original price

commission amount=commission rate ×total sales

simple interest=principal amount ×rate×time/100

server F, working 7 hours offers to join the group of five servers sharing their workload. If server F joins will the mean number of hours worked increase or decrease​

Answers

π I don’t really know the answer I’m really sorry

A worldwide organization of academics claims that the mean IQ score of its members is 118, with a standard deviation of 17. A randomly selected group of 40 members of this organization is tested, and the results reveal that the mean IQ score in this sample is 115.8. If the organization's claim is correct, what is the probability of having a sample mean of 115.8 or less for a random sample of this size

Answers

Answer:

0.2061 = 20.61% probability of having a sample mean of 115.8 or less for a random sample of this size

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

A worldwide organization of academics claims that the mean IQ score of its members is 118, with a standard deviation of 17.

This means that [tex]\mu = 118, \sigma = 17[/tex]

A randomly selected group of 40 members

This means that [tex]n = 40, s = \frac{17}{\sqrt{40}} = 2.6879[/tex]

What is the probability of having a sample mean of 115.8 or less for a random sample of this size?

This is the pvalue of Z when X = 115.8.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{115.8 - 118}{2.6879}[/tex]

[tex]Z = -0.82[/tex]

[tex]Z = -0.82[/tex] has a pvalue of 0.2061

0.2061 = 20.61% probability of having a sample mean of 115.8 or less for a random sample of this size

Maya plots the yards lost during a football game on a number line and labels it A. She plots Point B to the right of zero, a distance that is exactly as far from zero as Point A is. Which sentence is a correct statement about Point B?
The sum of the values of Point A and Point B is negative.
The sum of the values of Point A and Point B is zero.
Point B lies twice the distance from 0 as Point A.
Point B lies to the left of Point A on a number line.

Answers

Answer:

B

Step-by-step explanation:

The sum of the values of Point A and Point B is zero since Maya plotted Point B a distance that is exactly as far from zero as Point A is.

Answer: B) The sum of the values of Point A and Point B is zero.

Step-by-step explanation:

They are equally distant from 0, so they cancel eachother out.

Alexandra owns a small business selling bagels. She knows that in the last week 95 customers paid cash, 4 customers used a debit card, and 31 customers used a credit card.
Based on these results, express the probability that the next customer will pay with something other than a credit card as a fraction in simplest form.

Answers

last week

(dc: debit card & cc: credit card)

# of customers paid cash: 95
# of customers paid with dc: 4
# of customers paid with cc: 31

95+4+31= 130

Something other than a cc, meaning we sum the values of the # of customers who paid cash or dc.

= 99

Answer: 99/130

Evaluate 6 + x when x = 3​

Answers

Answer:

6+3 = 9

Glad I could help :)

The correct answer is 9! :) (Could I have brainliest?)

The expressions 4(y−3) and 4y−12 are equivalent?

Answers

Answer:

Step-by-step explanation:

12*4*y

=

4(12y)

.......

I need help DONT scam me with a link or I report

Answers

Answer:

9 blue

Step-by-step explanation:

It said 3 blue and 4 white

but Jade put 12 white and to get 12 from 4 you need to multiply 4 by 3

so you would also need to do the same for blue, 3 x 3 = 9

Answer:

how do you report sombody

Step-by-step explanation:

Abigail is using her mother's pancake recipe, but she wants to make 60% more pancakes than the recipe usually prepares. If her mother's recipe calls for 1/2 cup of flour, how much flour will Abigail need to use?

Which 1 is it ?

1 1/10 cups

1 3/5 cups

4/5 cup

3 1/0 cup

Answers

Answer:

C- 4/5 cups

Step-by-step explanation:

Solve the equation: 315= 390- 25q ​

Answers

Answer:

q=3

Step-by-step explanation:

315=390-25q

390-25q=315

390-25q-390=315-390

-25q=-75

Divide both sides by 25

q=3

Answer: q = 3

Step-by-step explanation:

315 = 390 - 25Q  

1. Minus 390 from both sides

-75 = =-25q

2. Divde both sides by -25 to get q by itself

3 = q or  q = 3

I need help with Additional practice it is find the area of each trapezoids or kite​

Answers

Answer:

♡●●♡♤●■

⊙♡}°♡■♡°€€£●€●●£7●£7{●£6{●€6¥■

Step-by-step explanation:

86{\86{●

A​ true/false test has 30 questions. A passing grade is ​78% or more correct answers.
a. What is the probability that a person will guess correctly on one​ true/false question?

Answers

Answer:

50%

Step-by-step explanation:

one question has 2 possible answers and 1/2 is 50%

pls tell the answer pls

Answers

Answer:

The correct answer is C

Step-by-step explanation:

It’s C I’m pretty sure

Auditions are being held for the annual school musical.
There are 18 roles available in the show. If 75 students
try out, what percentage of the students will get a role in
the musical?

Answers

If there are 18 roles and 75 students then 18/75 students will get a role which is 24%

Find the volume of the sphere! Plsssss

Answers

Answer:

The first is the right answer

Step-by-step explanation:

V = ( 4/3)*π*(R^3) = (4/3)*3.14*(8^3) =2143.6

The baseball park is 4200 m from Camden's house. I took him 30 minutes to get there.
What was Camden's speed?

Answers

The answer is 140 m/min

The first sequence follows the rule add 5. The second sequence follows the rule add 3. Both sequences start from 2. Select the option that correctly shows the first 5 terms for each sequence. Question 1 options: First sequence: 2, 7, 12, 17, 22 and second sequence: 2, 5, 8, 11, 14 First sequence: 0, 5, 10, 15, 20 and second sequence: 0, 2, 4, 6, 8 First sequence: 2, 6, 10, 14, 18 and second sequence: 2, 5, 8, 11, 14 First sequence: 2, 7, 12, 17, 22 and second sequence: 2, 6, 10, 14, 18

Answers

Option 1 because they both need to start sequence from 2

Johanna flips a coin, and then she spins a spinner with 4 equal sections colored yellow, green, red, and purple.

Answers

Answer:

What's the question though?

Help with this question pls & graph on MY graph pls

Answers

Answer:

I cant graph it on yours, but hope this helps

Step-by-step explanation:

What is the recursive rule for an=4n-3

Answers

Answer:

1

Step-by-step explanation:

n=1

4×1=4

4-3=1

The ratio 64 to 96 in simplest form is
3

Answers

Answer:

nice.

Step-by-step explanation:

giving brainliest !! easy

Answers

Answer:

1664

Step-by-step explanation:

400x2+480+192x2

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