4 years ago

Before 1995, three-digit area codes for the united states had the following restrictions:

Mathematics

1 answer:

Rzqust [24]4 years ago

8 0

<span>8C1*2C1*9C1
and the answer is 160</span>

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Scientists found that a certain particle of dust doubles every 30 minutes. If the scientists tests this out with 21 grams of the

monitta

Answer: $1.663\times 10^{30}\ gm$

Step-by-step explanation:

Given

Population of dust particle doubles every 30 minutes

If the initial sample is 21 grams

The model to predict the population will be

$\Rightarrow P=21\cdot 2^{2t}$

Where t=time in hours

A day has 24 hours . So, for 2 days time is 48 hours

Population is given by

$\Rightarrow P=21\cdot 2^{2\times 48}\\\\\Rightarrow P=21\times 2^{96}\\\\\Rightarrow P=1.663\times 10^{30}\ gm$

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3 years ago

Order these numbers from least to greatest. 4811 , 4.626 , 5.63 , 9320

scoundrel [369]

4.626,5.63,4811,9320.........

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4 years ago

13. Tai wrote the sequence -2, 5, 12, 19,....

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Answer:

26, 33

Step-by-step explanation:

rule is to add 7 everytime

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3 years ago

A tree's height increase by 15%. If a tree is 23 feet high, how tall will it be in one year ?

Ghella [55]

Increased height:-

$\\ \sf\longmapsto 23\times 15\%$

$\\ \sf\longmapsto 23\times \dfrac{15}{100}$

$\\ \sf\longmapsto \dfrac{345}{100}$

$\\ \sf\longmapsto 3.45$

Now current height:-

$\\ \sf\longmapsto 23+3.45=26.45ft$

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3 years ago

What is the median for the following set of data?<br><br> 5, 7, 9, 11, 13, 13

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Answer:

Step-by-step explanation:

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3 years ago