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anastassius [24]
4 years ago
5

An oak tree is planted when it is 250 centimeters tall. What is this height in meters

Mathematics
2 answers:
BartSMP [9]4 years ago
4 0
The answer is 2.5 meters.
user100 [1]4 years ago
3 0
Pretty Simple : 2.5 meters
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How much will be the amount after 29 years to the nearest cent
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P= 7800
R= 6.5
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Answer:

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Step-by-step explanation:

domain: (-∞ , ∞) ; range: f(x) ≥ 3

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3 years ago
A rectangular deck has an area of 320 ft squared. The length of the deck is 4 feet longer than the width. Find the dimensions of
AnnyKZ [126]
So, the area of a rectangle is <span>LxW.  </span>For this rectangle, <span>LxW=320.  </span>We also know that the length is 4 feet longer than the width, that is L=W+4.  With some substitution, we get<span>(W+4)W=320.  </span>Simplify to get <span>W^2+4w=320.  </span>Now the fun part!  When we complete the square, we'll end up with (W+___)^2, right?  So, let's take half of 4, which is 2, and square it.  That's 4.  Add that 4 to what we already have:W^2+4W+4.  But remember, what we do to one side of an equation we must do to the other side.  So we really have <span>W^2+4W+4=320+4.</span>We simplify and get <span>W^2+4W+4=324.  </span>Factor the left side of the equation and get<span>(W+2)^2=324.  </span>When we take the square root of both sides of the equation we getW+2=18, so W=16, which means the length (4 ft longer) is 20 ft. Do you have questions about the completing the square part?  In a trinomial, the coefficient in the x term is the sum of the two factors and the constant term is the product.  So, in the completing the square, you have the sum of a number added to itself or 2 times that factor.  That's why we take half of it.  Then, we square it to get the constant term.  Square completed.  But don't forget to keep the balance in the equation by also adding the constant term to the other side. 
3 0
4 years ago
the perimeter of a standard-sized rectangular rug is 84 ft the length is 22 ft longer than the width find the dimensions​
sergij07 [2.7K]

Answer:

The length would be 32 and the width would be 10

Step-by-step explanation:

For the purpose of this, we'll set the width as x. We can then define the length as x + 22 since we know it is 22 ft longer than the width. Now we can use those along with the perimeter formula to solve for the width.

P = 2l + 2w

84 = 2(x + 22) + 2(x)

84 = 2x + 44 + 2x

84 = 4x + 44

40 = 4x

10 = x

Now since we know that the width is 10ft, we can add 22ft to it to get the length, which would be 32ft.

8 0
4 years ago
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