Rule 1: The product<span> of a positive </span>integer<span> and a negative </span>integer<span> is a negative </span>integer<span>. Rule 2: The </span>product of two<span> negative </span>integers<span> or </span>two<span> positive </span>integers<span> is a positive </span><span>integer</span>
Answer:
Step-by-step explanation:
Given
See attachment
Required
Determine the surface area
The figure is made up of two cuboids and the surface area of a cuboid is:
Because the bottom part of the upper piece is not visible, the area is calculated as:
This gives:
For the bottom piece:
We calculate its area as . However, the area of the invisible part will be subtracted.
So, we have:
The total surface area is:
Answer:
4/9 in a decimal is 0.44444444
Step-by-step explanation:
35A) arc AC = 360-(100+110+80)=
360-290 = 70°
35B) <em>L</em><em> </em>D = ½× 70 = 35°
35C) <em>L</em><em> </em>AEC = ½(100+70)=½×170= 85°
35D) <em>L</em><em> </em>P = ½(100-70) = ½×30 = 15°
