Answer:
Nine million nine thousand, is written 9,009,000.
Answer:
x=26 2/3
(26 2/3, 9)
0.3(5)+1=2.5
(5,2.5)
slope = 0.3
Step-by-step explanation:
Answer:
[7.25, 7.35)
Step-by-step explanation:
The least significant digit is in the <em>tenths</em> place. The error can be as much as <em>half of one tenth</em>, or 0.05.
The lower bound is ...
7.3 - 0.05 = 7.25 . . . . . error subtracted from value
The upper bound is ...
7.3 + 0.05 = 7.35 . . . . . error added to value
Since 7.35 is rounded up to 7.4, the maximum value of L must be less than that.
7.25 ≤ L < 7.35 . . . meters
_____
In many cases, the upper bound on L is taken to be exactly 7.35. For all practical purposes it is. If you're asked for upper and lower limits, you'd have to say they are 7.35 and 7.25 m, respectively.
With these questions it is asking you to take a common factor
out of each equation.
Let’s take the second question: 19x³ - 38x²
We need to find something that will go
into 19x³ and 38x²
First off, they both contain x so we can
divide them by x. We take the x out and put the rest in brackets, like this:
x(19x² - 38x)
They still have x so we can do that
again.
x²(19x - 38)
Now, does anything go into 19x and 38?
Yes, they are both divisible by 19. So take that out too!
19x²(x - 2)
Nothing more goes into x or 2, so the
problem is solved!
Remember to always take a common factor
out before you try to factorise. (So try question 15 again with this in mind)
You can also check your answer by
expanding it again.