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valina [46]
4 years ago
14

Use completing the square to solve the equation x^2+16x=-44.

Mathematics
2 answers:
Sidana [21]4 years ago
7 0

Step-by-step explanation:

our equation is x²+16x = -44

  • x²+16x= -44
  • x² is the first term so weill have in the middle 2*x* a number
  • x²+2*x*8 = -44
  • the third term is 8² wich is 64 so we will add it in both sides
  • x²+2*x*8+64 = -44+64
  • (x+8)² = 20

Now that we have completed the perfect square let's solve the equation

  • (x+8)² = 20
  • x+8 = \sqrt{20}or x+8= -\sqrt{20}
  • x = -8+\sqrt{20} or x =  -8- \sqrt{20}

so the first answer is the correct one

64; 8 +/- \sqrt{20}

PolarNik [594]4 years ago
6 0
Rewrite the equation
x^2+16x=-44

Complete the square on the left hand side and add the answer to the right side to balance it
(16/2)^2=(8)^2=64
x^2+16x+64=-44+64

Simplify the equation
(x+8)^2=20

Find the roots of both sides
x+8=4.5 to nearest tenth
x=4.5-8
x=-3.5

Hope it helps

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step Explanation:

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We can divide 504 by 36 for an answer of 14, so \sqrt{504} can be written as \sqrt{36*14} which can be written as 6\sqrt{14} because the square root of 36 is 6.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

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8 0
2 years ago
How to do multiplication large numbers.
Keith_Richards [23]

Answer:

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Next, multiply 5 by 7. This time, 5 x 7 = 35. But you also need to add the 2 that you carried over, which makes the result 37. Because 5 and 7 are the last numbers to multiply, you don’t have to carry, so write down the 37 — you find that 53 x 7 = 371:

When multiplying larger numbers, the idea is similar. For example, suppose you want to multiply 53 by 47. Be sure to align the stacked numbers by the ones place. (The first few steps — multiplying by the 7 in 47 — are the same, so pick up the next step.) Now you’re ready to multiply by the 4 in 47. But remember that this 4 is in the tens column, so it really means 40. So to begin, put a 0 directly under the 1 in 371:

This 0 acts as a placeholder so that this row is aligned properly.

When multiplying by larger numbers with two digits or more, use one placeholding zero when multiplying by the tens digit, two placeholding zeros when multiplying by the hundreds digit

7 0
2 years ago
A pizza at papas cost $6.80 plus $0.90 for each topping.The cost of a pizza at little Italy’s is $7.30 plus $0.65 for each toppi
ira [324]

Answer:

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Step-by-step explanation:

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3 years ago
Solve for x <br> Find ADB<br> Find BDC
NeTakaya

Answer:

x=12 ADB= 56 BDC= 54

Step-by-step explanation:

ADB and BDC are complementary, so they add up to 90 degrees. In other words ADB+BDC= 90 So I can input my knowns into the equation

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I combined like terms to give me 7x+6=90

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. . . I think. Hope this helps!

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