Question

The perimeter of a triangle is 76 centimeters. The second side is twice as long as the first side. The third side is four centimeters shorter then the second side. How long is each side?

Answer 1

`\text{Let a be the first side, b be the second side and c be the third side of the }\\\text{triangle.}\\\text{Given,}\\\text{Perimeter of triangle = 76cm}\\\text{or, }a + b + c=76......(1)\\\text{Also,}\\b=2a.......(2)\\c=b-4......(3)\\\text{Using equation (2) in equation (3),}\\c=2a-4......(4)\\`

`\text{Substituting equations (2) and (4) in (1),}\\a+(2a)+(2a-4)=76\\\text{or, }5a=80\\\text{or, }a=\text{16cm}\\b=2a=2(16)=32\text{cm}\\c=b-4=32-4=28\text{cm}`

`\text{So the length of each side are 16cm, 32cm and 28cm.}`

Answer 2

safer for officers
"Potentially deadly robots will be used by San Francisco police in extreme
situations but only under supervision" i think that it will help police officers when trying to catch or kill criminal which will help a lot because they will not be in danger while having a
chance to catch those people.
Add a transition.
The robots could harm someone physically the video from CNET tech "Crime-fighting Robot
Can Detect Weapons in a Crowd" by Lexy Savvides, CNET Tech (text) the robots could harm people unintentionally but it is still harm, for example "Knightscope added two more robots to its existing lineup that currently includes the K3 and outdoor K5, which made headlines for running over a child's foot in a shopping mall" my opinion on this is that, the people is right those dogs must weigh a lot which can cause some really bad damage to a person's body and