Answer:
the last one
Step-by-step explanation:
The first table shows an upward trend (positive correlation).
The second table shows a horizontal line, neither up nor down (zero correlation).
The third table is incomplete, but seems to show as much upward as downward trend, so has a correlation near zero also.
The last table shows a decidedly downward trend, so will have a strong negative correlation.
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<em>Comment on answer choices</em>
The order of answer presentation may vary, so "D" may not be the answer to a different instance of this question.
Answer: 0
I didn't see an 'x' so I was very confused but I simplified and got "0"
Answer:
x = 0.75
Step-by-step explanation:
Simplifying
(7x + -5) + -1(3x + -2) = 0
Reorder the terms:
(-5 + 7x) + -1(3x + -2) = 0
Remove parenthesis around (-5 + 7x)
-5 + 7x + -1(3x + -2) = 0
Reorder the terms:
-5 + 7x + -1(-2 + 3x) = 0
-5 + 7x + (-2 * -1 + 3x * -1) = 0
-5 + 7x + (2 + -3x) = 0
Reorder the terms:
-5 + 2 + 7x + -3x = 0
Combine like terms: -5 + 2 = -3
-3 + 7x + -3x = 0
Combine like terms: 7x + -3x = 4x
-3 + 4x = 0
Solving
-3 + 4x = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '3' to each side of the equation.
-3 + 3 + 4x = 0 + 3
Combine like terms: -3 + 3 = 0
0 + 4x = 0 + 3
4x = 0 + 3
Combine like terms: 0 + 3 = 3
4x = 3
Divide each side by '4'.
x = 0.75
Simplifying
x = 0.75
3/7. if you make them equivalent fractions it would be 30/70 or 14/70. 30/70 is bigger.
The answer is 6.345 is rounded up to 6.
