The correct answer:
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Explanation:
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Assuming you mean:
" √(9a²) + (√49b) − a + √b " ;
Simplify the expression:
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Note that: " √(9a²) = 3a " ;
"√(49b) = 7√b " ;
And we write the expression
→ " 3a + 7√b − a + √b " ;
Combine the "like terms:
" + 3a − a = 2a " ;
" + 7√b + 1√b = 8√b " ;
Rewrite:
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" 2a + 8√b " ; which is: Answer choice: [C]: " 2a + 8√b " .
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Answer:
8
Step-by-step explanation:
18-12
12-X
X=12*12/18
X=8mm
Take 408/4 because there are 4 faces so that equals 102 m2
F 2/5 here is the answer i am not good at working this out but i can do this in my head very easily
