Answer:
(-5, 0) ∪ (5, ∞)
Step-by-step explanation:
I find a graph convenient for this purpose. (See below)
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When you want to find where a function is increasing or decreasing, you want to look at the sign of the derivative. Here, the derivative is ...
f'(x) = 4x^3 -100x = 4x(x^2 -25) = 4x(x +5)(x -5)
This has zeros at x=-5, x=0, and x=5. The sign of the derivative will be positive when 0 or 2 factors have negative signs. The signs change at the zeros. So, the intervals of f' having a positive sign are (-5, 0) and (5, ∞).
Answer:
1 to 100,000
Step-by-step explanation:
1 km is equivalent to 100,000 cm.
I think it’s b not sure tho
Answer:
y=-3x+5
Step-by-step explanation: y=mx+b
to find slope (m) use the equation
so
= -3
to find b
use y=mx+b
-1=-3(2)+b
-1=-6+b
5=b
Hope this helps :)
Both 28 I think I just multiplied 7×4 and on the light side is still the same length so that means that is also 4 for A