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4 years ago

What is the position of 9 in the number 932,805?

2 answers:

4 0

I assume you're using American notation and this number is equal to 932805 (European notation) : then 9 represents 900 000, which is 9 hundred thousand: so 9 s in b. The hundred-thousands place.

(In the European notation it would in in the hundreds place).

elixir [45]4 years ago

4 0

Answer is b. The hundred-thousands place

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Linear System, substitutional method 5x+4y=32 9x-y=33 helppp

Pachacha [2.7K]

5x + 4y = 32 ⇒ 45x + 36y = 288
9x - 1y = 33 ⇒ 45x - 5y = 165
 41y = 123
 41 41
 y = 3
 5x + 4(3) = 32
 5x + 12 = 32
 - 12 - 12
 5x = 20
 5 5
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 (x, y) = (4, 3)

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3 years ago

Please help :( Brainiest Find the AREA of the CIRCLE!! (In both)

Andrei [34K]

Answer:

1) 18^2 = 324

324 x 3.14 = 1,017.36 in2

2) half of 25 is:

12.5

12.5^2 = 156.25

156.25 x 3.14 = 490.625 m2

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3 years ago

Fission tracks are trails found in uranium-bearing minerals, left by fragments released during fission events. An article report

Harlamova29_29 [7]

Answer:

Mean track length for this rock specimen is between 10.463 and 13.537

Step-by-step explanation:

99% confidence interval for the mean track length for rock specimen can be calculated using the formula:

M± $\frac{t*s}{\sqrt{N}}$ where

M is the average track length (12 μm) in the report
t is the two tailed t-score in 99% confidence interval (2.977)
s is the standard deviation of track lengths in the report (2 μm)
N is the total number of tracks (15)

putting these numbers in the formula, we get confidence interval in 99% confidence as:

12± $\frac{2.977*2}{\sqrt{15}}$ =12±1.537

Therefore, mean track length for this rock specimen is between 10.463 and 13.537

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3 years ago

Can someone pleasee help me out I don’t understand ?

galina1969 [7]

Answer:

Step-by-step explanation:

It's easier to start by putting this into fraction form.

1 1/4

Then put the fraction into a decimal.

1 1/4 is the same as 1.25

After that, turn the decimal into a percentage.

1.25 turns into 125%

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3 years ago

Show how to solve 3x^2 + 10x = 8 by factoring

lisabon 2012 [21]

3x²+10x=8
3x²+10x-8=0
(3x-2)(x+4)=0
x=2/3 or -4
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4 years ago