First multiply the 5.38 and 4.2 together to get 22.596. We will deal with it in a bit. For the bases of 10, we will add the exponents giving us 10 to the 7th power. So this is what we have so far: 
. But that decimal number has to be between 1 and 10 and it's too high so we have to move the decimal one more place to the left. When we do that, we are adding one more power to the 10. The final answer in scientific notation is 
a box has length 9.0cm width 6.0 and height 10.2cm.find the total surface area of the box and the volume of the box
1 answer:
Answer:
Total surface area : 207cm²
Volume : 550.8³
Step-by-step explanation:
Surface area, first need to work out the area of each face.
A box is symmetrical so some faces will be the same.
Area = Base × Height
Top/bottom : 9 × 6 = 54cm²
side/side = 6 × 10.2 = 61.2cm²
Front/Back = 9 × 10.2 = 91.8cm²
Add then all together
54 + 61.2 + 91.8 = 207cm²
Volume = base × height × width
9 × 6 × 10.2 =550.8cm³
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