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vova2212 [387]
3 years ago
14

What shape has four equal sides and four right angles? trapezoid square rectangle

Mathematics
2 answers:
Alexeev081 [22]3 years ago
8 0
It’s a square, try to draw a square and count each lines
aliina [53]3 years ago
5 0
The answer is a square
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21 people are over 15
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The store has 28 notebooks in packs of 4 three packs are sold how many packs of notebooks are left
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"Quadrilateral ABCD underwent a sequence of transformations to give quadrilateral A′B′C′D′. Which transformations could have tak
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The total cost of producing a type of tractor is given by C(x)=11000−20x+0.02x2, where x is the number of tractors produced. How
marissa [1.9K]

Answer:

Step-by-step explanation:

You need to complete the square.

C(x) = 0.02(x^2 - 1000x  ...)  + 11000

C(x) = 0.02 (x^2 - 1000x + 500^2) + 11000 - 5000

C(x) = 0.02 (x^2 - 1000x + 500^2) + 6000

C(x) = 0.02(x - 500)^2 + 6000

Now if you look at the answer you will find that the square is completed. That means that number of tractors you could produce is 500 at a cost of 6000

There is a flow to this question that you may have trouble understanding.

First of all the 500^2. That comes from taking 1/2 of 1000 and squaring it. That's what you need to complete the square.

Bur that is not what you have adding into the equation. Remember that there is a 0.02 in front of the brackets.

500^2 = 250000

0.02 * 250000 = 5000

So that number must be subtracted to make the square = 0. When you remove the brackets, you should get 11000 all in all.

So what you have outside the brackets is 11000 - 5000 = 6000

The rest is just standard for completing the square.

5 0
2 years ago
Find the sum. 64 + (-15)
V125BC [204]

Answer:

49

Step-by-step explanation:

64- 15 = 49

Hope that this helps you and have a great day

8 0
3 years ago
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