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Salsk061 [2.6K]
2 years ago
12

If h(x) = 2x4 - 4x2 - 2x, then h(3)=

Mathematics
2 answers:
Liono4ka [1.6K]2 years ago
8 0
Answer: 120

Step by step solution: see photo

Kruka [31]2 years ago
6 0

Answer:

h(3)=-6

Step-by-step explanation:

sub 3 into all the positions which variable X is present

h(3) =( 2 \times 4) - (4 \times 2) - 2(3)

h(3) = 8 - 8 - 6

h(3) =  - 6

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Answer:

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Step-by-step explanation:

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The radius of the cylinder remains constant with respect to time, but the height of the water label changes with respect to time.

The height of the cylinder be h(say).

The volume of a cylinder is V=\pi r^2 h

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\frac{dV}{dt}=4\pi \frac{dh}{dt}

Putting the value \frac{dV}{dt}

\Rightarrow 4\pi \frac{dh}{dt}=4

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Therefore the rate change of height is  \frac{1}{\pi} m/s.

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