Mathematics, 24.07.2019 06:30 angie7665

Which relationships would most likely be causal? check all that apply. a) a positive correlation between the number of homework assignments completed and the grade on the exam b) a positive correlation between the temperature in a canyon in the early spring and the number of snakes seen by hikers c) a positive correlation between a child’s shoe size and reading speed d) a negative correlation between the time a glass of ice water sits on the counter and its temperature e) a positive correlation between the number of students attending football games and the number of games that are won

Answers: 2

Show answers

Answers

Answer from: hbked23

A. B, and D are most likely causal relationships.

Explanation:

A causal relationship exists when an event may be considered the cause of the other. On the other hand, when two events are associated by how the behave but none may be the physical cause of the occurrence of the other then they are only correlated.

These are the relationships that would most likely be causal:

A) a positive correlation between the number of homework assignments completed and the grade on the exam

Of course, if you complete more assignments you likely will be better prepared to have good grades.

B) a positive correlation between the temperature in a canyon in the early spring and the number of snakes seen by hikers

May be the hot weather causes the snakes to move from one place to another.

D) a negative correlation between the time a glass of ice water sits on the counter and its temperature

The lower the temperature of the ice water the longer the time to evaporate.

Those are causations: cause - effect relationships.

On the other hand, the other two relationships:

C) a positive correlation between a child’s shoe size and reading speed, and E) a positive correlation between the number of students attending football games and the number of games that are won,

cannot be considered causual, they are just might be correlated.

Answer from: krrrr

its A,B i just got thew answer right know

Answer from: Quest

Step 1: 6x-10=1; step 2: 6x=11

Answer from: Quest

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

Another question on Mathematics

Mathematics, 21.06.2019 14:40

Answer these questions showing your work plz

Answers: 3

Answer

Mathematics, 21.06.2019 16:30

Question 5 spring semester final exam math evaluate

Answers: 1

Answer

Mathematics, 21.06.2019 20:00

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

Answers: 1

Answer

Mathematics, 22.06.2019 00:20

How is this equation completed? i cannot find any examples in the book.

Answers: 1

Answer

You know the right answer?

Which relationships would most likely be causal? check all that apply. a) a positive correlation be...

Questions