Answer:
Check my explanation
Step-by-step explanation:
1. x=-7y
2(-7y)-8y=22
-14y-8y=22
-22y=22
y=-1;x=7, I used subtitution because that process was easier.
2. x=3+y
7(3+y)-y=-3
21+7y-y=-3
21+6y=-3
6y=-24
y=-4; x=-1, I used subtitution because that process was easier.
3. x=1 and y=1, I used elimination because that process was easier.
4. x-3=4x-9
-3x=-6
x=3; y=0, I used subsitution because that process was easier.
The surface area of a prism:
2 times the area of the base + perimeter of the base multiplied by the height.
AKA:
2 x area of base + perimeter of the base x height
Xxx :)
Divide the estimated number by the exact number and multiple by 100
Area of a Trapezoid, A = [(a+b)/2] · h
Where,
a and b are the respective bases of the trapezoid
h is the height of the trapezoid
a = 10
b = 7 + 10 + 10 = 24
h = 9
A = [(a+b)/2] · h
A = [(10 + 24)/2] · 9
A = [(34)/2] * 9
A = 17 * 9
A = 153 Units²
Answer:
D is the answer on edg.
Step-by-step explanation:
