20 points answer asap brainliest given answer question 2 a and b i and ii. the diagram shows a six sided shape. all the measurements are in cm. the area of the shape is 25cm^2.

Step-by-step explanation:

a)

(2x+5)(3x-2)+2(3x-2)

= 6x^2 -4x + 15x + 6x -4

= 6x^2 + 17 -4 = 25

therefore 6x^2 +17 -39 = 0

b) i)

using the quadratic formula:

x=3/2 or x=-13/3

ii)

2x+5

= 2(3/2) + 5 = 8

the longest side is 8 cm long

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

its   c, f, a

step-by-step explanation: