What is the power of 10 when 0.000028 is written in scientific notation

2 answers:

5 0

Scientific notation<span> is the way that scientists easily handle very large numbers or very small numbers.

For example, instead of writing 0.0000000056, we write </span> $5.6 * 10^{-9}$ .

Hence, in scientific notation

0.000028 = $2.8 * 10^{-5}$

So, the answer is -5. The power of ten has to be -5.

mezya [45]2 years ago

3 0

-5 as that you would have to count that places to the left. You end decimal would have to be between 1 and 10, so it would not count the 8. I'm sorry if my explanation is not good, but that is the right answer

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A cylinder has a height of 16 cm and a radius of 5 cm. A cone has a height of 12 cm and a radius of 4 cm. If the cone is placed

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Read 2 more answers

Hello, Can I get some help with #30 a and b, please? Don't forget to show your work.

Murljashka [212]

Answer:

a. dy/dx = -2/3

b. dy/dx = -28

Step-by-step explanation:

One way to do this is to assume that x and y are functions of something else, say "t", then differentiate with respect to that. If we write dx/dt = x' and dy/dt = y', then the required derivative is y'/x' = dy/dx.

a. x'·y^3 +x·(3y^2·y') = 0

y'/x' = -y^3/(3xy^2) = -y/(3x)

For the given point, this is ...

dy/dx = -2/3

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b. 2x·x' +x^2·y' -2x'·y^3 -2x·(3y^2·y') + 0 = 2x' + 2y'

y'(x^2 -6xy^2 -2) = x'(2 -2x +2y^3)

y'/x' = 2(1 -x +y^3)/(x^2 +6xy^2 -2)

For the given point, this is ...

dy/dx = 2(1 -0 +27)/(0 +0 -2)

dy/dx = -28

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