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2 years ago

5,890,000=a×10b a==?

Mathematics

1 answer:

guapka [62]2 years ago

8 0

Answer:

=146628

Step-by-step explanation:

gracias por los puntos

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Use Gauss's approach to find the following sums (do not use formulas). 1+3+5+7+...999

muminat

$S=1+3+5+\cdots+995+997+999$
$S=999+997+995+\cdots+5+3+1$
$\implies 2S=(1+999)+(3+997)+(5+995)+\cdots+(995+5)+(997+3)+(999+1)$

$2S=\underbrace{1000+1000+\cdots+1000+1000}_{500\text{ times}}$

(We are adding 500 instances of 1000 because that's how many odd numbers there are between 1 and 1000, inclusive.)

$2S=500\times1000=500000$
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3 years ago

3. A square metal plate has a density of 10.2 g/cm3 and weighs 2.193 kg.

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Answer:

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Step-by-step explanation:

given,

density = 10.2 g/cm³

mass = 2.193 kg = 2193g

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= 215 cm³

b. given that base area = 25cm²

volume = base area x thickness

thickness = volume / base area

= 215 / 25

= 8.6 cm

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3 years ago

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2 years ago

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2 years ago

5,890,000=a×10b a==?​

5,890,000=a×10b a==?