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xz_007 [3.2K]
3 years ago
8

Re-write the quadratic function below in Standard Form y=5(x + 1)^2+9

Mathematics
1 answer:
omeli [17]3 years ago
4 0

Answer:

y = 5x^2+10x +14

Step-by-step explanation:

y = 5(x+1)^2+9

= 5(x^2+2x+1)+9

= 5x^2+10x +14

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Answer:

google

Step-by-step explanation:

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When it is 2:00 p.m. in New York City, it is 9:00 PM in Athens. If you leave New York at 7:30 a.m. on Wednesday and fly to Athen
Scilla [17]
First, we determine the difference in the times between New York City and Athens. From the given above, we can conclude that the difference between the times is 7 hours. Then, we determine the time in New York when the arrived in Athens. 
               Time in New York : 7:30 am + (13 hours + 45 minutes) 
                                           = 21:15 or 9:15 pm of Wednesday
Then, we translate this to time in Athens by adding the difference to our answer above,
             Time in Athens: 9:15 pm Wednesday + 7 hours 
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Thus, the answer is letter C. 
5 0
4 years ago
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What is the greatest perimeter of a rectangle with an area of 39 square feet
harina [27]
There is no greatest perimeter of a rectangle with an area of 39 square feet.

To see why, consider the length of 3 and width of 13. Area would be 39 and perimeter would be 3 + 3 + 13 + 13 = 32

Now consider length of 3/2 = 1.5 and 13·2 = 26. Then area is same but perimeter is 1.5 + 1.5 + 26 + 26 = 55.

Now we can just repeatedly half the length and double the width.

L = 3.0, W = 13
⇒ A = 39, P = 32.0 

L = 1.5, W = 26   
⇒ A = 39, P = 55.0 

L = 0.75, W = 52   
⇒ A = 39, P = 105.5 

L = 0.375, W = 104  
⇒ A = 39, P = 208.75 

L = 0.1875, W = 208  
⇒ A = 39, P = 416.375 

L = 0.09375, W = 416  
⇒ A = 39, P = 832.1875 

L = 0.046875, W = 832  
⇒ A = 39, P = 1664.09375 

L = 0.0234375, W = 1664 
⇒ A = 39, P = 3328.046875 

L = 0.01171875, W = 3328 
⇒ A = 39, P = 6656.0234375 

L = 0.005859375, W = 6656 
⇒ A = 39, P = 13312.01171875

 Notice how P just kept growing. That's because width grow much faster than length <span>shrinking, </span>so P would grow endlessly.

Hope this helps.
6 0
3 years ago
Which is a correct way to subtract from a number? (A). Add 100 then subtract 1 (B). Add 100 then add 2. (C). Subtract 100 then a
harkovskaia [24]

Answer:

A is the answer

Step-by-step explanation:

According to BODMAS (or DMAS), first we add and then subtract

if both operations are of add, we add it at the same time

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Factor completely and then place the factors in the proper location on the grid.
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The fully factored form of this expression would be
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