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2 years ago

If f(x)= VX-3, which inequality can be used to find the domain of f(x)?

Mathematics

1 answer:

NeX [460]2 years ago

4 0

Answer:

the second one but I'm not sure it cuz it was a little bit different in my text I hope it

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Find the value of x.

Sergio039 [100]

Answer:

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2 years ago

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Find the volume of the solid of revolution formed by rotating about the x--axis the region bounded by the given curves.

Maslowich

Answer:

16 pi cubic units

Step-by-step explanation:

Given that a region is bounded by

$f(x)=√x, y=0, x=1, x=4$

And the region is rotated about x axis.

We can find that here radius would be y value and height would be dx

So volume would be as follows:

If f(x) is rotated about x axis volume

= $\pi \int\limits^b_a {y^2} \, dx \\=\pi \int\limits^4_1 {x} \, dx\\=\pi *x^2 ^4_1\\= \pi*16-1\\=15\pi$

cubic units.

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2 years ago

What the square root

MrRissso [65]

Answer:

-7.07106

Step-by-step explanation:

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2 years ago

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A supply company manufactures copy machines. The unit cost C (the cost in dollars to make each copy machine) depends on the numb

sergij07 [2.7K]

Answer: $\$18,629$

Step-by-step explanation:

Given

The unit cost is given by

$C(x)=0.6x^2-168x+30,389$

find the derivative of the unit cost and equate it to zero to obtain the minimum value

$C'(x)=0.6\times 2x-168\\\Rightarrow 0.6\times 2x-168=0\\\Rightarrow 1.2x=168\\\\\Rightarrow x=\dfrac{168}{1.2}\\\\\Rightarrow x=140$

Substitute 140 for $x$ in the cost function, we get

$C(140)=0.6[140]^2-168(140)+30,389\\C(140)=11,760-23,520+30,389\\C(140)=\$18,629$

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2 years ago

When a grizzly bear hibernates, its heart rate drops to

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The grizzly bears heart would drop 20% during hibernation

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3 years ago