What is 8.4 x 10^-6 in standard notation ?
2 answers:
<h3>Answer: 0.0000084</h3>
There are 5 zeros between the decimal point and the '8'
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Explanation:
Move the decimal point 6 spots to the left to go from 8.4 to 0.0000084
There are 5 zeros between the decimal point and the '8'. Each zero digit mentioned represents one move to the left. That sixth move is due to the '8' itself.
Check out the diagram below.
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Answer:
45 square inches
Step-by-step explanation:
Akira receives the prize at the science fair for having the most informative project her trophy is in the shape of a square pyramid and is covered in shiny gold foil how much gold foil did it take to cover the trophy including the bottom
Total surface = surface area of the base square + area of 4 triangles
Calculate the surface area of the base square
surface area of the square = s^2
where s= side length
s=3 in
The surface area of the base =s^2
=3^2
= 9 square inches
The surface area of the side triangles
The area of the triangle = (1/2)* side length* slant height
Side length=3 in
Slant height=6 in
substituting the values,
The area of the triangle =1/2*3*6
= 18/2
= 9 square inches
There are 4 triangles
The area of 4 triangles = 4 x 9
= 36 square inches
Therefore,
Total surface = surface area of the base square + area of 4 triangles
= 9 + 36
= 45 square inches
