Answer:
<em>37cm = 370 millimeters</em>
<em>37cm = 0.37 meter</em>
<em>37cm = 0.00037 kilometers</em>
Step-by-step explanation:
37cm = 370 millimeters
37cm = 0.37 meter
37cm = 0.00037 kilometers
Using <span>Descartes' rule of signs.
There are 4 changes of signs of coefficients:
+ to - (+x^6-x^5)
- to + (-x^4+4x^3)
+ to - (+4x^3-12x^2)
- to + (-12x^2+12)
Therefore, there are 4,2 or 0 positive roots </span><span><span>at most</span>. So it must be the third answer.
</span>
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Answer:
a = 6
Step-by-step explanation:
use distribution method:
-3(4-a) = 6
-12+3a = 6
3a = 6+12
3a = 18
a = 18/3 = 6