Answer:
Q(-2,-7)
See attachment
Step-by-step explanation:
We need to form a simultaneous equation and solve.
The point P has coordinates (1,8). Let the other point Q also have coordinate (x,y).
Then the average rate of change is the slope of the secant line connecting P(1,8) and Q(x,y) and this has a value of 5.
This point Q also lies on the given parabola whose equation is
Put equation (1) into (2) to get:
When x=-2, y=5(-2)-3=-7
Therefore the required point is Q(-2,-7)
Answer: Each brick woukd weigh 772 troy ounces
Step-by-step explanation:
Let x be the number of pages of advertisements.
Write a proportion from the table:
of a page of advertisment - 5 pages in a magazine
x pages of advertisment - 98 pages in a magazine,
then
Find x:
Answer: 13 whole pages and of 14th page are advertisments, so 14 pages contain advertisments.
500m/2min = 250m/1min= 250m/min.
Hope this helps!