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3 years ago

What is 400,000 times 200 in scientific notation

2 answers:

8 0

If you move the decimal point left until it is just to the right of the most-significant digit, the number of places you moved it is the power of ten that your new number is multiplied by.

$400,000=4\times 10^{5}\\200=2\times 10^{2}$

Then multiplication can proceed in the usual way, taking into account the rules of exponents.

$4\cdot 10^{5}\times 2\cdot 10^{2}=8\cdot 10^{(5+2)}\\\\=8\cdot 10^{7}$

Ber [7]3 years ago

7 0

Answer:

4 X 10^3

Step-by-step explanation:

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Answer:

140 cm^2

Step-by-step explanation:

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3 years ago

A signalized intersection has a cycle length of 60 seconds and an effective red time of 25 seconds. The effective green time is

alexandr402 [8]

Answer:

effective green time = 35 seconds

Step-by-step explanation:

given data

cycle length = 60 seconds

effective red time = 25 seconds

solution

we get here effective green time that is express as

effective green time = cycle length - effective red time ...........................1

put here value and we will get

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3 years ago

A blue container weighs 4 x 103

NemiM [27]

Answer:

208

Step-by-step explanation:

First let's find out what each container weighs..

Blue = 4 x 103 = 412

Red = 102 x 2 = 204

Now, Let subtract Blue container by Red Container..

412-204=208

Hence, the blue container weighs 208 more than the red container.

8 0

2 years ago