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ExtremeBDS [4]
3 years ago
12

Hiii please help asap ill give brainliest if you give a correct answer tyyyyy

Mathematics
1 answer:
kvv77 [185]3 years ago
3 0

Answer:

25?

Step-by-step explanation:

sorry if im wrong

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The volume of an iceberg that is below the water line is 25 cubic meters. the volume that is above the water line is 22 cubic me
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3 years ago
Kerry has a job that pays $1,954 biweekly. How much is withheld annually for Social Security?
Alexandra [31]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
Let x^2+15x=49
Slav-nsk [51]
<span>x^2 + 15x + 56.25 = 105.25

    "Completing the square" is one of many different techniques for solving a quadratic equation. What you do is add a constant to both sides of the equation such that the lefthand side can be factored into the form a(x+d)^2. For instance, squaring (X+D) = X^2 + 2DX + D^2. Notice the 2DX term. That is the same term as the 15x term in the problem. So 2D = 15, D = 7.5. And D^2 = 7.5^2 = 56.25.
So we have
 x^2 + 15x + 56.25 = 49 + 56.25
 Which is
 x^2 + 15x + 56.25 = 105.25
  Which is the answer desired.

   Now the rest of this is going beyond the answer. Namely, it's answering the question "Why does complementing the square help?" Well, we know that the left hand side of the equation can now be written as
 (x+7.5)^2 = 105.25

   Now take the square root of each side
 (x+7.5) = sqrt(105.25)

   And let's use both the positive and negative square roots.
So x+7.5 = 10.25914226
 and
 x+7.5 = -10.25914226

   And let's find X.
 x+7.5 = 10.25914226
 x = 2.759142264

   x+7.5 = -10.25914226
 x = -17.75914226

   So the roots for x^2 + 15x - 49 is 2.759142264, and -17.75914226</span>
3 0
3 years ago
Read 2 more answers
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sladkih [1.3K]

Answer:

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Step-by-step explanation:

......?

8 0
3 years ago
What is an rational number and irrational number between 7.7 and 7.9
avanturin [10]
Rational number is 7.8 irrational numbers is 7.7 and 7.9
4 0
3 years ago
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