The average length of a yellow-banded angelfish is 12 inches. This is 4.8 times as long as an average common goldfish. a. write an equation you could use to find the length of the average common goldfish.

b. what is the length of an average common goldfish

pl hel

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

mean, 40.6

step-by-step explanation:

765238725478629038640962136509762139056074

step-by-step explanation:

64087235609746097215074621039754021037

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