She should multiply y = x - 2 by -4...that way one x will be -4x and the other will be 4x and they will cancel out when added.
answer is -4
Answer:
Can you give me a picture of the question? Or be more specific?
Answer:
Step-by-step explanation:
First, subtract 3 from x
This will get you the expression x - 3
Now, divide this by 6.
This will get you the expression
So, the final expression from the steps is
Answer:
m = -0.8
Step-by-step explanation:
Use slope formula: (y2 - y1) / (x2 - x1)
Apply formula: ( 8 ) / (-10)
Simplify: -4 / 5
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Answer:
See below
Step-by-step explanation:
The score increase was 35 points. They claimed an increase of at least 50 points. For a significance level of 5%, the z-score for the situation needs to be at smaller than -1.645. For a significance level of 1%, the z-score needs to be smaller than -2.325
The z score for our situation: z = (385 - 350)/50 = 0.7
The average score of 385 of Tutor O-Rama scores is not significantly different from the average of the other students SAT scores. The evidence doesn't support their claim of being effective tutoring.
