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liberstina [14]

3 years ago

12

PLEASE HELP ME!!! I don’t know the answer and I have to show my work!!!

2 answers:

gladu [14]3 years ago

8 0

Since the indices of the roots are the same, we can write the given expression as

fourth root of (400/5), which is "fourth root of 80."

What are some fourth powers?

1^4=1
2^4=16
3^4= 81

Note that 16 is a factor of 80. Therefore:

fourth power of 80 = (fourth power of 16)*(fourth power of 5)
= 2*(fourth power of 5) (answer)

max2010maxim [7]3 years ago

7 0

4√400 / 4√ 5 ( both are 'fourth roots ')

= 4√ (400/5)

= 4√80

= 2.99 to nearest hundredth

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Answer:

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