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mario62 [17]
3 years ago
8

Two grain-collecting machines can collect all the grain from a field 9 days faster than if the first one was doing it alone and

4 days faster than if the second one was working alone. How long does it take each grain-collecting machine to collect all the grain by itself?
Mathematics
1 answer:
Paul [167]3 years ago
7 0
I would say the answer would be 36
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*(The bottom part is x as it approaches infinity)*
Bess [88]

\bf \lim\limits_{x\to \infty}~\left( \cfrac{1}{8} \right)^x\implies \lim\limits_{x\to \infty}~\cfrac{1^x}{8^x}\\\\[-0.35em] ~\dotfill\\\\ \stackrel{x = 10}{\cfrac{1^{10}}{8^{10}}}\implies \cfrac{1}{8^{10}}~~,~~ \stackrel{x = 1000}{\cfrac{1^{1000}}{8^{1000}}}\implies \cfrac{1}{8^{1000}}~~,~~ \stackrel{x = 100000000}{\cfrac{1^{100000000}}{8^{100000000}}}\implies \cfrac{1}{8^{100000000}}~~,~~ ...

now, if we look at the values as "x" races fast towards ∞, we can as you see above, use the values of 10, 1000, 100000000 and so on, as the value above oddly enough remains at 1, it could have been smaller but it's constantly 1 in this case, the value at the bottom is ever becoming a larger and larger denominator.

let's recall that the larger the denominator, the smaller the fraction, so the expression is ever going towards a tiny and tinier and really tinier fraction, a fraction that is ever approaching 0.

6 0
4 years ago
Which of the following could be the equation of the graph shown below?
GalinKa [24]
What graph is there?
6 0
3 years ago
Read 2 more answers
Write an equation of the circle with center(-9,4)and radius 2.
lys-0071 [83]

Answer:

(x+9)^2 + (y-4)^2 = 4

Step-by-step explanation:

The equation for a circle is (x-h)^2 + (y-k)^2 = r^2

7 0
4 years ago
Plea someone help me in this
Vladimir79 [104]

Answer:

Given that the height is 26 feet, the height of the stories of the building is 26-6=20 feet. therefore, the height of each story of the building is 20÷2=10

4 0
3 years ago
Hi I was having some problem with this question, its been a while since I had been in geometry. I think you foil, but Im not sur
DochEvi [55]
First, I would distribute the 2 out to the (x+4). 

2x+8. 

Next, use the foil method to multiply together 2x+8 and (x+3). 

2x^2 +14x+24. 

Do the same process for the other side. 

3(x+2)= 3x+6 

(3x+6)(x-1)= 3x^2+3x-6

Set the remaining products of each side of the equation equal to each other. 

2x^2 +14x+24=3x^2+3x-6. 

Now you must cancel out one side to make the equation equal to zero. Do this by doing the inverse operation on one side of the equation (each value with their like term). I am going to subtract the left side values from the right: 

This means: 
3x^2 minus 2x^2 equals 1x^2 (or just x^2).    

3x minus 14x equals -11x 

-6 minus 24 equals -30 

The equation should now look like this: 

0=x^2-11x-30

Reverse the order to get zero on the right side: 

x^2-11x-30=0

Hope this helps! Sorry if I made any careless mistakes (^^;)


7 0
3 years ago
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