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frez [133]
3 years ago
6

Which of the following are in scientific notation?

Mathematics
2 answers:
horsena [70]3 years ago
8 0
Hi and it’s the 3rd one
ella [17]3 years ago
6 0

Answer:

5.23x10^-2, 8.7x10^-2

Step-by-step explanation:

Scientific notation is basically any number(eg121) thats divided by the lowest power of 10 before it turns into 0.something(in this case, 1.21), times the power of 10 u need to dived, in this case 10^2.

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what coordinate expression represents the coordinates of any point after dilation by any scale factor, a?
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Answer:

(x,y) → (ax,ay) .

Step-by-step explanation:

A dilation is a transformation that changes the size of the image. It either shrink or enlarge a shape by using a scale factor about a center of dilation.

If we transform point (x,y) by using dilation with scale factor k (assume center of dilation at (0,0) then the coordinate of the image will be (kx,ky).

So, the coordinate expression represents the coordinates of any point after dilation by a scale factor of a:

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4 years ago
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Answer:

<u>Given inequality:</u>

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A girl that is 4 feet tall is standing next to the empire State building in New York city. The girls shadow is 3.2 feet long. If
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Set up the proportion then cross multiply:

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4(x) = 1454(3.2)

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