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3 years ago

3028002 expanded form

Mathematics

1 answer:

777dan777 [17]3 years ago

5 0

300,000+2,000+800+0+2=302,802

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Simplify 9 to the 2nd over 9 to the 7th.

Free_Kalibri [48]

9^2/9^7

when dividing powers, we subtract the exponents

9^(2-7)

9^ (-5)

a negative exponent flips from the numerator to the denominator

1/ 9^5

Choice D

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3 years ago

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What is the simplified form of each expression? (7 – c)(–1)

Zigmanuir [339]

Answer:

-7+c

Step-by-step explanation:

distribute the - 1

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3 years ago

What is the simplified from of 4x^2-25 over 2x-5?

stealth61 [152]

We can factor 4x^2-25 into (2x +5) * (2x -5) and
dividing by (2x -5)
yields (2x +5)

That neatened up pretty nicely.

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3 years ago

Identify the surface with the given vector equation. r(s, t) = s sin 4t, s2, s cos 4t

k0ka [10]

Answer:

Circular paraboloid

Step-by-step explanation:

Given ,

$r(s,t)=ssin4t,s^2,scos4t$

Here, these are the respective $x,y,z$ axes components.

Component along x axis $r_i : ssin4t$

Component along y axis $r_j : s^2$

Component along z axis $r_k : scos4t$

We see that , from the parameterised equation , $r_i^2+r_k^2=s^2sin^24t+s^2cos^24t\\r_i^2+r_k^2=s^2\\r_i^2+r_k^2=r_j$

This can also be written as :

$x^2+z^2=y$

This is similar to an equation of a parabola in 1 Dimension.

By fixing the value of z=0,

We get $y=x^2$ which is equation of a parabola curving towards the positive infinity of y-axis and in the x-y plane.

By fixing the value of x=0,

We get $y=z^2$ which is equation of a parabola curving towards positive infinity of y-axis and in the y-z plane.

Thus by fixing the values of x and z alternatively , we get a CIRCULAR PARABOLOID.

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3 years ago

4 x 1 + 1 x 1/100 + 9 x 1/1000 in standard form

uysha [10]

Answer:

4.1

Step-by-step explanation:

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3 years ago