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Nat2105 [25]
2 years ago
14

Z varies directly as x2. If z = 12 when x=2, find z when x=4. Z=

Mathematics
1 answer:
zmey [24]2 years ago
8 0
That’s a good question didosoeoeioeewooeoe
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Describe in words the region of R3 reperesented by the equations or inequalities y2+z2=16
Anastasy [175]

Answer:

It represents an infinite cylinder of radius 4.

Step-by-step explanation:

The first thing to notice is that

y^2+z^2=4^2

<u>represents a circle of radius 4</u>, with its center in the origin of a plane yz, of cartesians coordinates.

Starting from here, we have to put the coordinate x, for all values of x, to complete the space R³. <em>This will enlarge this circle we had on the plane, to infinity</em> (positive and negative on the x-axis).

Finally, we have that this region is a cylinder of radius 4, with center in y=0 and z=0, and of infinite length in the x coordinates.

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3 years ago
Expand and simplify (x+3)(x-4)
Vinvika [58]

Answer:

the following term =

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Step-by-step explanation:

here's the explanation in attached image.

i hope it helped

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What is the value of z in the equation 3z + 5 = 4z - 2? I NEED THE WORK
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