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Alekssandra [29.7K]
3 years ago
12

Six Different statistic books,seven different economics books are arranged on a shelf.How Many Diiferent Arrangements are possib

le if: 1.The books in each particulare subject must all stand together?​
SAT
1 answer:
sesenic [268]3 years ago
6 0

Answer:

7257600 ways

Explanation:

6! × 7! × 2! = 7257600 ways

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Assuming complete precipitation, how many moles of each ion remain in solution? if an ion is no longer in solution, enter a zero
Alex

Based on the information given, it should be noted that there'll be 0.06537 moles of HgS and 0.13074 moles of the remaining compound.

<h3>What is precipitation?</h3>

Precipitation simply means the process of transforming a dissolved substance into an insoluble solid. It's the conversion of a solution into a solid.

From the complete information, it can be inferred from the reaction that was balanced that there'll be 0.06537 moles of HgS and 0.13074 moles of the remaining compound. This shows the moles of each ion that remains.

Learn more about precipitation on:

brainly.com/question/24704707

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2 years ago
Ms. Johnson uses a statistics program to analyze all the data collected by her students during a lab experiment about accelerati
Tanya [424]

99990 Explanation:

20-00

3 0
3 years ago
The population of two different villages are modeled by the equations shown below. The population (in thousands) is represented
PilotLPTM [1.2K]

Answer:

1990 and 2010

y_l_w(15)=315\hspace{3}thousands\\y_l_c(15)=315\hspace{3}thousands\\y_l_w(35)=715\hspace{3}thousands\\y_l_c(35)=715\hspace{3}thousands

Explanation:

Let:

y_l_w=Population\hspace{3}of\hspace{3}Lewiston\\y_l_c=Population\hspace{3}of\hspace{3}Lockport

We need to know, in what year(s) the villages had the same population, mathematically this is:

y_l_w=y_l_c

So:

x^2-30x+540=20x+15\\\\Subtract\hspace{3}20x\hspace{3}from\hspace{3}both\hspace{3}sides\\\\x^2-50x+540=15\\\\Subtract\hspace{3}15\hspace{3}from\hspace{3}both\hspace{3}sides\\\\x^2-50x+525=0

Solving for x:

Factoring

(x-15)(x-35)=0

Hence:

x=15\\\\or\\\\x=35

Therefore the year(s) which the village had the same population are:

1975+15=1990\\\\and\\\\1975+35=2010

In order to find the population of both cities during the year(s) of equal population, just evalue the equations at x=15 and x=35:

y_l_w(15)=315\hspace{3}thousands\\y_l_c(15)=315\hspace{3}thousands\\y_l_w(35)=715\hspace{3}thousands\\y_l_c(35)=715\hspace{3}thousands

7 0
3 years ago
Question 2
HACTEHA [7]

Answer:

Blue is described as a favorite color by many people and is the color most preferred by men. Because blue is favored by so many people, it is often viewed as a non-threatening color that can seem conservative and traditional. Blue calls to mind feelings of calmness or serenity.

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3 years ago
Anyone buy a coolmath login?
zzz [600]
No, but I think the other guys is right.
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3 years ago
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