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Maru [420]
3 years ago
10

Please help for number 25

Mathematics
1 answer:
Phantasy [73]3 years ago
8 0
The correct answer is:  [C]:  " inverse variation;  xy = 40 " .
__________________________________________________
Explanation:
______________________________________________
Examine the table given, and plug in the value:
_______________________________________
In the equation for Answer choice: [C]:  " xy = 40 ".

When x = 1 , y = 40.

xy = 40 ;  1*40 = 40.  Yes.

When x = 2, y = 20.

xy = 40;  2*20 = 40.  Yes. 

When x = 5, y = 40.

xy = 40.  8* 5 = 40.  Yes.

When x = 10, y = 4.

xy = 40.  10*4 = 40. Yes.
_______________________________________
So the equation makes sense ;
 
"inverse variation;  xy = 40".
________________________________________
since; "xy = 40" ; which is "answer choice: [C]".
________________________________________
     We know that the other choices do NOT make sense; if we plug in any of the corresponding x and y values for any of the equations provided in any of the other answer choices, the equations will not equal, and as such, the answer choices are incorrect.
_________________________________________ 
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Step-by-step explanation:

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The numbers -12, -7, -2, 3, ... follow a pattern. What are the next three numbers in this pattern?
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Step-by-step explanation:

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5 0
3 years ago
Please help me with this question
almond37 [142]
C. None from the above
8 0
3 years ago
Pre cal/cal master needed
weqwewe [10]
Take x-2 and insert it into 2x^2 + 3x-2 where the x is located 
2x^2 + 3x-2
2(x-2)^2 + 3(x-2)-2

Now work out 2(x-2)^2 + 3(x-2)-2 also follow PEMDAS
2(x-2)^2 + 3(x-2)-2 
Since (x-2)^2 is an Exponent, lets work with that first and expand (x-2)^2.
(x-2)^2
(x -2)(x-2)
x^2 -4x + 4
Now Multiply that by 2 because we have that in 2(x-2)^2
(x-2)^2  =  x^2 -4x + 4
2(x-2)^2  =  2(x^2 -4x + 4)
2(x^2 -4x + 4) = 2x^2 - 8x + 8
2x^2 - 8x + 8

Now that 2(x-2)^2 is done lets move on to 3(x-2).

Use the distributive property and distribute the 3
3(x-2) = 3x - 6

All that is left is the -2 

Now lets put it all together 
2(x-2)^2 + 3(x-2)-2

2x^2 - 8x + 8 + 3x - 6 - 2

Now combine all our like terms 
2x^2 - 8x + 8 + 3x - 6 - 2
Combine:  2x^2      =  2x^2 
Combine: -8x + 3x  =  -5x
Combine:  8 - 6 - 2 =   0

So all we have left is
2x^2 - 5x





5 0
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icang [17]

Answer:

its 373248

Step-by-step explanation:

I got this by 2squared 9 and 3squared 6

3 0
3 years ago
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