The population of Portland Oregon has recently grown to more than 500,000. What is the order of magnitude for the number of peop
1 answer:
Answer:
Order is 6
Step-by-step explanation:
The population of Portland Oregon has recently grown to more than 500,000.
The order of magnitude for the number of people in Portland means the power of 10. It means that we need to write 500,000 in form of 10 to the power. So,
It contains 6 zeroes. It means,
So, the order of magnitude for the number of people in Portland is 6.
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Answer:
(1, -1), (5, -3)
Step-by-step explanation:
It is convenient to graph the solution space and plot the points.
You can also try the points in the inequality one by one (or all together).
_____
Here is the "all together" trial.
... {-3, 12, -2, -1, -3} - 2×{-6, 7, 0, 1, 5} ≤ -3 . . . . . use lists for x and y values
... {-3, 12, -2, -1, -3} - {-12, 14, 0, 2, 10} ≤ -3 . . . . multiply the x list by 2
... {9, -2, -2, -3, -13} ≤ -3 . . . . . . . . . . . . . . . . . . . . perform the subtraction
The inequality is true for the last two values, corresponding to points ...
... (1, -1) and (5, -3)
