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Korolek [52]
3 years ago
10

Complete the square to: n2 + 4n - 8 = 0

Mathematics
1 answer:
Ivahew [28]3 years ago
6 0

Answer:

(n + 2)² = 12

Step-by-step explanation:

{n}^{2}  + 4n - 8 = 0 \\  {n}^{2}  + 4n = 8 \\  {n}^{2}  + 4n + 4 = 8 + 4 \\  {(n + 2)}^{2}  = 12

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What is the next number and why ? 1,3,11,35,99,_
Vladimir79 [104]

Answer: 241

Step-by-step explanation:

This is a simple problem when using Pascal's triangle. First you look at 1 - 3, what is the difference in these 2 numbers? Its 2, then you look at 3 and 11, the difference is 8, then 11 and 35, the difference is 24. If you keep doing this you get; 2 8 24 64 142. Next you find out how these numbers are different. In the end you keep doing this until you get to the triangles point or the differences converge.

                                          1      3      11      35     99      <u>241</u>

                                             2      8     24       64    142

                                                6      16      40      78

                                                     10     24      38

                                                          14       14

In the end we get 14 but there is no difference in the numbers so we cant go any farther. Hope this helps!

6 0
3 years ago
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sesenic [268]

Answer: i dont know, gook luck

Step-by-step explanation:

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<span>2.3684 rounded to the nearest thousandths is 2.368

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Step-by-step explanation: One thousand grams is equal to one kilogram. To get the answer we have to divide 7 by 1000 to get the answer in kg.

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