Answer:
D. -4
Step-by-step explanation:
-5 + -9 = -14
-14 + 10 = -4
she left her computer open for 48 hours
Answer:
Option A
Step-by-step explanation:
Given that in a study of the relationship between geographical mobility (number of times a person has changed residences) and number of friends, Pearson's r^2 is reported as .40.
r square, being the coefficient of determination explains the variablity of one variable due to the variability of the other. Here Mobility explains 40% variation in the number of friends is right answer.
Option B is wrong because r = ±6324, so cannot say positive or negative.
Similarly option c is wrong because we are unsure whether negative correlation. Option d is wrong since 16% is not right .
<h3>
It is equivalent to 2a+2b</h3>
We use the distributive property.
Multiply the outer term 2 by each term inside ('a' and b)
2 times a = 2a
2 times b = 2b
We add those results to get 2a+2b. We cannot combine these terms as they are not like terms.
Answer:
Step-by-step explanation:
Mower A: 3.25 / 0.3 = 10.83
Mower B: 3.75 / 0.15 = 25
Mower C: 4.25 / 0.24 = 17.71
Mower D: 5.50 / 0.18 = 30.50
Answer: D :)
