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andrey2020 [161]
3 years ago
15

2.1x10 to the -3 power x 2x10 to the second power

Mathematics
1 answer:
ad-work [718]3 years ago
5 0

Answer:

4.2*10^{-1}

Step-by-step explanation:

We want to simplify:

2.1*10^{-3}\times 2*10^2

We rewrite to get:

2.1*2*10^2*10^{-3}\times10^2

We now apply the laws of indices

4.2*10^{-3+2}

We simplify to get 4.2*10^{-1}

We leave our final answer is scientific form.

The final answer is therefore:

4.2*10^{-1}

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harkovskaia [24]
The perimeter of the square is calculated through the equation,
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where P is the perimeter and x is the measure of the sides.

When P is 32 units then,
                                         32 units = 4(x)
                                                 x = 8 inches

This 8 inches is the diameter of the cylinder formed by the rotation. 
The circumference of the base is calculated through,
                            C = 2πr = πD
Substituting the known values,
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<em></em>When π is equal to 3.14, we solve for the numerical value of the cylinder as follows,
<em>                                      C = 8(3.14) = 25.12 units
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6 0
3 years ago
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Solve 2x^2 + x − 4 = 0
ki77a [65]

Answer:

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Answer:

11

Step-by-step explanation:

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1st step = go with the number that is inside the square

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Answer:

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Peter has the most amount of the money of the three of them.

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Arranging from the Person who had the most of money, we have Peter with $700, John with $500 and lastly, Anna with $400.

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