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finlep [7]
3 years ago
10

Using the Quadratic Formula, which of the following is the solution to the quadratic equation 5x2 + 10x - 5 = 0?

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
7 0
Your closest awnser would be C
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So it's actually 0.36363636... with the 36 repeating, right? 

<span>Here's a technique for converting repeating decimals to fractions: </span>

<span>N = 0.3636363636... </span>
<span>100N = 36.36363636... </span>

<span>This means 100N - N = (36.363636...) - (0.36363636...). This simplifies to 99N = 36, because the "0.36363636..." parts of both numbers on the right cancel each other out. </span>

<span>Solving this for N gives </span>
<span>N = 36/99, or 4/11 </span>

<span>If you take a calculator (or use long division) and divide 4 by 11, you'll see that it's 0.36363636...</span>
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3 years ago
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elena-s [515]
This answer is c hope it helps
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Big Ben (the clocktower) in London has a circumference of 72.22 feet and an area of 415.27 feet^2. What is the diameter AND radi
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Answer:

Diameter = 23  Radius = 11.5

Step-by-step explanation:

Divide the circumference by π, or 3.14 for an estimation. The result is the circle's diameter.

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