3 hundred-millionths in scientific notation 310^-1 310^8 3*10^-8

Mathematics

1 answer:

KengaRu [80]2 years ago

6 0

3*10 to the -8 is the answer.

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If the equation y² - (K- 2y + 2k +1 = 0 with equal roots find the value of k

777dan777 [17]

Answer:

y² - (K- 2)y + 2k +1 = 0

equal roots means D=0

D= b^2 - 4ac

a=1, b= (k-2), c= 2k+1

so,

(k-2)^2 - 4(1)(2k+1) = 0

=> k^2 +4 - 8k -4 = 0

=> k^2 -8k = 0

=> k^2 = 8k

=> k= 8k/k

=> k = 8

Therefore the answer is k= 8

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8 0

3 years ago

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FromTheMoon [43]

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