It costs $3.45 to buy 3 4lb of chopped walnuts. How much would it cost to purchase 7.5 lbs of walnuts? Explain or show your reas
1 answer:
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Answer:
use sine or cosine rule
Step-by-step explanation:
that's the answer by using the sine rule
Answer:
SA = 202
Step-by-step explanation:
Surface area = Sum of all 6 areas of each side of the cuboid
SA = 2 (4·5 + 5·9 +9·4), because there are 2 of each kind of sides
SA = 2 (20+ 45 + 36)
SA = 2·101
SA = 202
