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joja [24]
3 years ago
9

Factor completely 81x8 − 1.

Mathematics
1 answer:
Law Incorporation [45]3 years ago
3 0

Answer:

all work is shown and pictured

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Zhang Tao has many guests in his home. He decides to measure the population density in his home. What would be an appropriate un
levacccp [35]
Good question. Let's try this. How about People per meter squared. The average 2 bedroom apartment in the city near where I live is about 94 square meters.  If there were say 100 people at a party in his home, then the number of people per square meter would be 100 / 94 = 1.06 people / square meter.

If however he called those in his home to join him for breakfast and 7 people responded then he would have 7 / 94 = 0.0745 people per m^2 When the number is this small, it might make sense to go the other way. (m^2 per person). 94/7 = 13.4 meters per person. That makes far  more sense. It means that every person has 13.4 meters^2 that he could call his own.
4 0
3 years ago
Read 2 more answers
I need help with this problem please.
Thepotemich [5.8K]
6, 6, 3, 3, and 3

63,363
36,336

I just kept switching around the numbers till the sixes were separated by a factor of 1,000. This means that if the 6 is in a place, that if you multiply the 6 by 1,000, you'll get the place that the other 6 is in.

For 63,363, there is one 6 in the tens place and one in the ten thousands place. 60 x 1,000 = 60,000, which is where the first 6 is in. They are separated by x1,000. 

For 36,336, there is a 6 in the ones place and a 6 in the thousands place. 6 x 1,000 = 6,000, and there is a 6 in the thousands place. They are separated by x1,000.

(Hope the explanation helped!)
7 0
3 years ago
What is unknown number in proportion?
elena-14-01-66 [18.8K]

Answer:

x = 2.4/20= 0.12

Step-by-step explanation:

Multiply both sides by 4 to eliminate the fraction 1/4:

1      20

--- = ------

x      2.4

Next, we cross-multiply.  This eliminates the fractions:

20x = 2.4

Dividing both sides by 20 results in an equation for x:  x = 2.4/20= 0.12

4 0
3 years ago
Azul has 4 green picks and no orange picks. You add orange picks so that there are 2 orange picks for ever 1 green pick. How man
natta225 [31]
Pretty sure 14 ...... sry if I’m wrong
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3 years ago
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Determine whether each number is rational or irrational
user100 [1]

Answer:

B C E G J

Step-by-step explanation:

7 0
3 years ago
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