in △def , the length of de¯¯¯¯¯ is 30−−√ inches, and the length of ef¯¯¯¯¯ is 3 inches. if it can be determined, what is the length, in inches, of df¯¯¯¯¯ ?

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

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step-by-step explanatio89

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