17 I think might be wrong cuz I suck at this
The slope of a trend line that passes through the points (5, 80) and (7, 65) is -7.5.
Step-by-step explanation:
If the line is passing through two points (x1, y1) and (X2, y2). The slope (m) can be calculated using following formula.

In this case,
x1 = 5
x2 = 7
y1 = 80
y2 = 65
By putting the values in formula, we get


or
m = -7.5
Therefore, the slope of a trend line that passes through the points (5, 80) and (7, 65) is -7.5.
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Answer:
B. the second one
Step-by-step explanation:
Answer:
36.25 and 307.18
Step-by-step explanation:
both are 100 times greater than 20.342.
Answer:
<em>x = - √10, and x =√10</em>
Step-by-step explanation:
1. Let us add 3 to either side of the equation: x^2 - 3 + 3 = 7 + 3
2. That equation would simplify to: x^2 = 10
3. Now let us take the square root on either side: √x^2 = √10
4. Being square root of x^2, we could say that: | x | = √10
5. And thus 2 answer may be derived from this equation provided absolute value symbol ( | | ): <em>x = - √10, and x =√10</em>