This is quadratic equations Help asap!!
1 answer:
Answer:
x = - 3 ±
Step-by-step explanation:
x² + 6x + 7 = 0 ( subtract 7 from both sides )
x² + 6x = - 7
using the method of completing the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(3)x + 9 = - 7 + 9
(x + 3)² = 2 ( take square root of both sides )
x + 3 = ± ( subtract 3 from both sides )
x = - 3 ±
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Answer:
No, the given sequence is not arithmetic.
Step-by-step explanation:
The given sequence is
The first term is 5.
A sequence is an arithmetic, if the difference between any two consecutive terms are same.
The difference between terms are
Since the difference between consecutive terms are not same, therefore given sequence is not arithmetic.
Answer:
22
Step-by-step explanation:
A possible value of b is 22, since = 4.69.