in this kind of exercises you need to work in 3 steps:
1. split your figure into shapes you know
2. calculate the area of those separate shapes
3. add the areas
1. (see picture)
2. shape 1 (triangle)
A= 8m×3m
A= 24m²
2. shape 2 (rectangle)
A= 8m×4m
A= 32m²
3.
total A= A1+ A2
A= 24m²+32m²
A= 56m²
Answer:
a
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = - , thus
y = - x + c ← is the partial equation
To find c substitute (- 5, 8) into the partial equation
8 = 1 + c ⇒ c = 8 - 1 = 7
y = - x + 7 ← in slope- intercept form
Multiply through by 5
5y = - x + 35 ( add x to both sides )
x + 5y = 35 ← in standard form → a
