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Please someone answer this :D I really need the answer
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2 votes
Please someone answer this :D I really need the answer

Please someone answer this :D I really need the answer-example-1
User Zoltan Magyar
by
7.2k points

1 Answer

2 votes

Answer:

8.25

Explanation:

first substitution

x=4 and y=7

square root(i dont have it) 4(x)7 + 9(x)4 =

square root 28+36 =

square root 64 =

8.246211251

round to 3 significant figure = 8.25

User Maxywb
by
7.0k points
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