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Leni [432]
3 years ago
6

Please help, and i will mark you BRAINLIEST

Mathematics
1 answer:
julia-pushkina [17]3 years ago
6 0

Answer: 4 5/6

Step-by-step explanation: 4 5/6+ 1 3/6(aka 1 1/2)= 6 2/6 (aka 6 1/3)

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Find the dimensions of the rectangle with area 289 square inches that has minimum perimeter, and then find the minimum perimeter
nalin [4]
 <span>To minimize the perimeter you should always have a square. 
sqrt(289) = 17 
The dimensions should be 17 X 17 

To see , try starting at length 1, and gradually increase the length. 
The height decreases at a faster rate than the length increases, up until you reach a square. 

Or if you want to use algebra, Say the width is 17-x 
Then the length is 289/(17-x) 

Now, this is bigger than 17+x, as shown here: 
289/(17-x) > 17+x 
289 > 289 - x^2 
which is true. 
so the perimeter would be bigger than 2 * (17- x + 17 + x) = 2 * (2 * 17) = 4 * 17 

Again, the dimensions should be a square. 17 X 17.</span>
4 0
4 years ago
a party company hs chairs and tables for rent. The total cost to rent 3 chairs and 5 tables is $42. the total cost to rent 9 cha
scoray [572]

Answer:

ito

867$

Step-by-step explanation:

Sana makatulog

5 0
3 years ago
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If f(x) = 2x2 + 1, what is f(x) when x = 3?
ikadub [295]
f(x)=2x^2+1\\\\\text{substitute the value of x to the equation of the function}\\\\f(3)=2\cdot3^2+1=2\cdot9+1=18+1=19
8 0
4 years ago
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A) 9x^2-1<br> B)9x2-6x+1<br> C)3x^2-1<br> D) 3x-1
gayaneshka [121]

Answer:

b

Step-by-step explanation:

5 0
3 years ago
$947.50 - $189.50 = ?<br>Am I not smart or what?
VashaNatasha [74]
<span>   $947.50
</span> - $189.50
_________
$758.00

So, to do this first we start at the far right and go to the left.

   $947.50 - $189.50_________
   $      .00
0-0= 0
5-5= 0

You then bring down the decimal.

   $947.50 - $189.50_________
    $   8 .00
Because you cannot subtract 9 from 7, you borrow one from the number to the left of it and 7 turns into a 17 as 4 turns into a 3. So then, 17-9=8.
         17
   $93-7-.50         -7- = This means the 7 has been canceled out and turned  - $189.50                        into the 17 above _________         8 .00
This happens again with subtracting 3 from 8 in which you take one from the number beside which happens to be 9 and make it 8.

          17
   $8-3--7-.50         -7- and -3- = This means the 7 has been canceled out                                                         and turned into the 17 above 
  - $189.50                        _________    $ 58 .00
So then, 13-8=5. Finally 8-1= 7

   $947.50
 - $189.50
_________
$758.00

4 0
4 years ago
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