Answer:
A significant correlation means that there is a significant (in a statistical point of view) correlation between two things.
Then a significant correlation means that we have a (measurable) correlation between the variables in our experiment.
Now, the factors are the variables that experimenters control during an experiment in order to determine their effect on the response variable, then having a positive correlation between two factors, means that when we change one, the other is also affected by the change in the first one.
Then the statement is true.
Answer:
21.94
Step-by-step explanation: because i did some basic math
Answer:
2.6
Step-by-step explanation:74.2 divided by 28.35= around 2.6
Answer:
x = ±i8/7
Step-by-step explanation:
49x^2 +64 = 0
Subtract 64 from each side
49x^2 +64-64 = 0-64
49x^2 = -64
Divide by 49
49x^2/49 =-64 /49
x^2 = - 64/ 49
Take the square root of each side
sqrt(x^2) = ±sqrt(- 64/ 49)
x = ±sqrt(- 64/ 49)
We know sqrt( ab/c) = sqrt(a) sqrt(b)/sqrt(c)
x = ±sqrt(- 1) sqrt(64)/( 49)
We know that the sqrt(-1) = i
x = ±i8/7
Answer:
<6 = 60 degrees, <7 is 50 degrees, <8 is 70 degrees
Step-by-step explanation:
Angle 6 is 60 degrees because of the alternate interior angles theorem.
Angle 7 is 50 degrees, also because of the alternate interior angles theorem.
Now, the three interior angles of a triangle should add up to 180 degrees. That means:
60 + 50 + <8 = 180
<8 = 70 degrees
<6 = 60
<7 = 50
<8 = 70