Mary is preparing for her college entrance exams in a practice test she answered 12 problems in 30 minutes at this rate how many
1 answer:
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The slope of the line that passes through the points (2,5) and (-1,5) is 0: it is an horizontal line, because both points have the same y-coordinate. The equation of the line is y=5.
For any two points (x1,y1), (x2,y2), the slope, m, of the line that passes through them can be calculated with:
where
represent the increment on the y direction and the increment on the x direction, respectively.
This comes from the definition of "slope": the slope of a line tells you how much does the line grow in the vertical direction for every unit of advance in the x direction.
If you apply the formula to the points given, you get
.
For any two points (x1,y1), (x2,y2), the slope, m, of the line that passes through them can be calculated with:
where
This comes from the definition of "slope": the slope of a line tells you how much does the line grow in the vertical direction for every unit of advance in the x direction.
If you apply the formula to the points given, you get
Answer:
95.85
Step-by-step explanation:
The area A of a circle as a function of its radius r is given by πr².
So, A(r) = πr²
Now, if there is a function f(x) and we have to calculate the average rate of change between the interval x = a and x = b is given by
Now, A(5.5) = π(5.5)² = 95.07 and A(25) = π(25)² = 1964.28
So, the average rate of change in area between the intervals r = 5.5 to r = 25 will be given by
(Answer)