3 years ago

X^4+2x^2-48=0 what is the solution set

Mathematics

1 answer:

jolli1 [7]3 years ago

6 0

Answer:

x. = sqrt 6 and x = - sqrt 6

Step-by-step explanation:

x^4 + 2x^2-48=0

(x^2 - 6) (x^2 + 8) = 0

x^2 - 6 = 0

x = + sqrt 6 and x = - sqrt 6

x^2 + 8 = 0

x^2 = sqrt -8 (a negative number doesn’t have a real square root)

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cestrela7 [59]

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3 years ago

The snowiest city receive an average of 113.9 more inches of snow than the second snowiest city. The second snowiest city reciev

steposvetlana [31]

Answer:

The snowiest city receive 347.7 inches on average each year.

Step-by-step explanation:

We want to find the amount of snow the snowiest city receives on average every year, "x". It is known that this city receives 113.9 more inches than the second snowiest, which receives 223.8 inches on average every year. Therefore, the expression for "x" is:

$x = 233.8 + 113.9\\x = 347.7 \text{ inches}$