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SCORPION-xisa [38]
3 years ago
12

Is the product of x and y rational or irrational?

Mathematics
1 answer:
mote1985 [20]3 years ago
4 0

Answer:

Irrational

Step-by-step explanation:

x = \sqrt{3}

y = \sqrt{6}

\sqrt{3} * \sqrt{6} = 4.24264069...

4.24264069....

It has no recognizable pattern and it goes on forever. Therefore, it is irrational.

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Find the slope please using the formula
Aleks04 [339]

Answer:

4/3

Step-by-step explanation:

Using the formula of rise/run:

9-1 = 8

8-2 = 6

8/6 =4/3

3 0
3 years ago
If x=3 calculate the value of x3-x
Dmitrij [34]
x^3-x=3^3-3= \\\\ =27-3= \\\\ =\boxed{24}
6 0
3 years ago
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A container is filled with 100 grams of bird feed that is 80% seed. Tom and Sally want to mix the 100 grams with bird feed that
marta [7]

Answer:

Initially, we had:

100 grams of a mixture that is 80% seed, (or 0.8 in decimal form)

This means that the quotient between the mass of seeds and the total mass of the mixture is equal to 0.8

Then the mass of seeds, x, can be calculated as:

x/100g = 0.8

x = 0.8*100g

x = 80g

We also have another mixture, that is 5% seed (or 0.05 in decimal form)

This means that in X grams of this mixture, there will be y grams of seeds, such that:

y/X = 0.05

y = 0.05*X grams

Now, we want to create a mixture that is 40% seeds (or 0.4 in decimal form).

Let's do this.

If we add X grams of the 5% mixture, the total mass will be:

M = 100g + X.

The total mass of seeds will be:

m = 80g + X*0.05

and we want that the quotient between the mass of seeds and the total mass to be exactly 0.4

m/M = 0.4

(80g + X*0.05)/(100g + X) = 0.4

Let's solve this for X.

(80g + X*0.05) =  0.4*(100g + X)

80g + X*0.05 = 40g + X*0.4

80g - 40g = X*0.4 - X*0.05

40g = X*0.35

40g/0.35 = X = 114.2g

If we want the mixture to be exactly 40% seeds, we need to add 114.2g of the 5% mixture. (We already can see that Tom is closer to the exact result than Sally)

If we add 114g, like Tom wants, we will have:

M = 100g + 114g = 214g

m = 80g + 0.05*114g = 85.7g

m/M = 85.7g/214g = 0.4005

This is a really good aproximation, if we write this in percentage form this would be:

0.4005*100% = 40.05%

8 0
3 years ago
georgina works on the 30th floor of a office building she took the elevator to the cafeteria on the 7th floor how many floors di
dezoksy [38]
She traveled 23 floors, 30-7=23.
3 0
3 years ago
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Robert collected 330 aluminum cans. If 100 aluminum cans weigh 4 pounds, and the recycling center is paying 25 cents a pound, ho
labwork [276]
First, determine the weight of 330 cans with the given conditions,
                    (330 cans) x (4 lbs / 100 cans) = 13.2 lbs
Then, the price is determined by multiplying this weight to the price that the recycling center is paying,
                         (13.2 lbs) x (25 cents / lb)  = 330 cents = $3.3
Thus, Robert will be paid $3.3. 
4 0
2 years ago
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