What would this be ? I’m overthinking it

See answers below

Step-by-step explanation:

Notice that the big trapezoid C consists of Two full squares and half od a square (that makes the right angle triangle left after folding the square)

so:

trapezoid C = 2.5 the size of the square

That makes the smaller trapezoid D = 1.5 the size of the square

and the triangle left = 0.5 the size of the square.

5.-

a) the square is 1/2.5 = 2/5 of C

b) the square is  1/1.5 = 2/3 of D

c) the square is 1/0.5 = 2 times the size of the triangle

d) the square is 1/1 = 1 of itself

6.-

a) Trapezoid C is 5 times triangle A

b) Trapezoid C is 2.5 = 5/2 of the square.

7.-

a) Trapezoid D is 3 times triangle A

b) Trapezoid D is 3/5 of trapezoid C

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form