3c2 – 4a + b
Given a =-3
B=4
c=2.5

34.75

Step-by-step explanation:

Since we have the values of a to be -3, b= 4 and c= 2.5, then slot the figures in to give: 3(2.5×2.5) - 4 (-3) + 4

3 (6.25) + 12 + 4

18.75 + 12 + 4

=34.75

well my understanding of this question is they want you to use the y=14.1x -2.3 and put the coordinates they gave you onto the line segment of   y=14.1x -2.3

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk