Answer:
B is times 7.5 and C is 3 will be 22.8 5 will be 37.5 and 7 will be 52.5
Step-by-step explanation:
Answer:
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Answer:
A=133 A=71.5 A=31.5 A=1
Step-by-step explanation:
B because if x is negative you always move to the left when plotting a point and if the y is positive you’ll always move up the y-axis to plot the point
"Perimeter" is the distance all the way around the drawing. If the drawing has sides, then the perimeter is the SUM of the lengths of all the sides. It's exactly the distance an ant would have to walk along the line, to get all the way around to where he started from.
To get the perimeter of the triangle, you have to add up the lengths of the three sides.
(2a - 3) + (2a) + (3a + 1) =
2a - 3 + 2a + 3a + 1 .
Add up all the 'a's: 2a + 2a + 3a = 7a
Add up all the just plain numbers: -3 + 1 = -2
Write them together, as a binomial: 7a - 2
THAT's your expression for the perimeter.
