Answer: velocity-time graph
Step-by-step explanation: The principle is that the slope of the line on a velocity-time graph reveals useful information about the acceleration of the object. If the acceleration is zero, then the slope is zero (i.e., a horizontal line). If the acceleration is positive, then the slope is positive (i.e., an upward sloping line).
Inflection at f'(x) = 0
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x^1/2 / (1 + x + x^3) = 0 </span>
<span>The x coordinate is x = 0 </span>
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or "C" from your choices there. </span>
<span>The simplest way is to notice that this happens when x = 0. The reason is you got: </span>
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x^1/2 / (some expression) </span>
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at x = 0 the numerator is 0 so unless the denominator is also 0 the result is 0. </span>
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The denominator for x = 0 is 1 so you get </span>
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0/1 = 0.
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C≈ 87.96
I think thats the answer
Answer:

Step-by-step explanation:
Given

Required
Rewrite with fewer terms

Open Bracket

Collect Like Terms


<em>Hence, the equivalent is 20 - 5r</em>