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Inessa [10]
3 years ago
7

If you stacked Avogadro's number of pennies one on top of the other on Earth's surface, how far would the stack extend (in kilom

eters)? [For comparison, the sun is about 150 million km from Earth and the nearest star (Proxima Centauri) is about 40 trillion km from Earth.]
Mathematics
1 answer:
miskamm [114]3 years ago
7 0

Answer:my

The height of the stack will be 9.15×10^20_m

Or 9.15×10^17_Km

Which is 6 billion times more more than the distance to the sun

Or 22.9 million times further than the star Proxima Centauri

Step-by-step explanation:

Given

Avogadro's number = 6.02×10^23 particles

And the thickness of a penny = 1.52_mm

The height of the stack will be

1.52 × 6.02 ×10^23 = 9.15×10^23_mm 9.15×10^20_m

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A paint machine dispenses dye into paint cans to create different shades of paint. The amount of dye dispensed into a can is kno
Ket [755]

Answer:

0.9115 is the proportion of paint cans that contain less than 5.54 ml of the dye.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 5 ml

Standard Deviation, σ = 0.4 ml

We are given that the distribution of amount of dye dispensed is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(paint cans contain less than 5.54 ml of the dye)

P( x < 5.54) = P( z < \displaystyle\frac{5.54 - 5}{0.4}) = P(z < 1.35)

Calculation the value from standard normal z table, we have,  

P(x < 5.54) =0.9115 = 91.15\%

0.9115 is the proportion of paint cans that contain less than 5.54 ml of the dye.

5 0
2 years ago
Someone please help me with this!
Sveta_85 [38]

5(14-2)^2/2

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Do the exponent

5(12*12)/2

5(144)/2

144/2= 72

72*5= 360

Answer : 360

8 0
2 years ago
Can you help ASAP!!!! WILL MARK U BRAINLIEST!
Leto [7]

Answer: i will give u the points

Step-by-step explanation-                             -7, 11 and  11, 2

6 0
3 years ago
U'LL GET BRAINLIEST IF U ANSWER FIRST
Tanzania [10]

Answer:

\boxed{\bold{a+2b}}

Explanation:

  • <u>Simplify expression to find its equivalent</u>

<u></u>

Expand \bold{2\left(a+2b\right): \ 2a+4b}

= \bold{2a+4b-a-2b}

Simplify \bold{2a+4b-a-2b: \ a+2b}

= \bold{a+2b}

Mordancy.

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3 years ago
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His total sales were 402.68 dollars. 700 minus 275 minus 22.31
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3 years ago
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