Answer: It means find the slope of each line.
Step-by-step explanation:
A is the line that runs from 0,-6 to 5,14 This is tricky because the scale of the y-axis is twice the value of the x-axis. So what looks like a slope (gradient) of +2 is actually +4. Figure the difference in y-values divided by the difference in x-values.
Same for line B.
I used 0 - 14 for the rise, and 4 -(-3) for the run. 7/-14 makes that slope a -2. That's negative two, not the apparent negative one!
Step-by-step explanation:
H2CO3=carbonic acid -(found in many sodas and "fizzy" drinks)
h20=water
CO2=cardon dioxide
K(a) = b^a = 0.2
k(-3a) = b^(-3a) = (b^a)^(-3)
= 0.2^(-3)
k(-3a) = 125
<span>for this question, the tolerance is telling us that the actual diameter of the engine is no more than 9.2 + 0.01 cm and now less than 9.2 - 0.01 cm.
Thus the range of values of the actual diameter is
9.19 cm - 9.21 cm
Another way of phrasing this is letting 'x' denote the actual value of the diameter and then limiting 'x' to being within 0.01 cm of 9.2:
|x - 9.2| <= 0.01
Which is identical to
-0.01 <= x - 9.2 <= 0.01
Or . . .
9.19 <= x <= 9.21</span>
Rounded down it is simply 6,000.