3 years ago

Why is the answer D?

Mathematics

1 answer:

Sedaia [141]3 years ago

4 0

Step-by-step explanation:

Inflection points are where a function changes concavity (the second derivative changes signs). At x = 4, f"(x) goes from negative to positive, so that's an inflection point. However, at x = 8, we don't know if f"(x) changes signs or not. So we can't say that that's an inflection point.

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Round 111.11111 to the nearest ten thousandth.

Tema [17]

111.11111 its correct

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2 years ago

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The store allowed 85 people in 5 hours .. how many people were allowed to enter per hour?

ale4655 [162]

Answer:

17 people per hour

Step-by-step explanation:

85/5

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2 years ago

Find the slope of the line through each pair of points. (15, 8), (-1, 15).

Natalija [7]

Answer:

22.6

Step-by-step explanation:

15-1 8-15

14^2 7^2

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2 years ago

Walt is mixing fruit punch for a party. He combines 1 gallon 2 quarts 3 pints of orange juice 1 gallon 3 quarts 7 pints of pinea

Vlad [161]

So he's mixing:

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that's:

3 gallons 8 quarts and 13 pints.

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3+3=6 gallons 2 quarts and 1 pint.

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2 years ago

Find the distance traveled by a particle with position (x, y as t varies in the given time interval. x = 3?sin2 t, y = 3?cos2 t,

ANTONII [103]

Assuming the particle's position is given by

$\begin{cases}x(t)=3-\sin2t\\y(t)=3-\cos2t\\0\le t\le4\end{cases}$

then the distance traveled over the interval is

$\displaystyle\int_{t=0}^{t=4}\sqrt{\left(\dfrac{\mathrm dx(t)}{\mathrm dt}\right)^2+\left(\dfrac{\mathrm dy(t)}{\mathrm dt}\right)^2}\,\mathrm dt$
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3 years ago