2.5y + 3x=7 (1st)
5x - 2.5y = 5 re-write -2.5y + 5x = 5 (2nd)
2.5y + 3x=7 (1st)
-2.5y + 5x = 5 (2nd)
---------------------------add
8x = 12
x = 12/8 = 1.5
2.5y + 3x=7
2.5y + 3(1.5)=7
2.5y = 7 - 4.5
2.5y = 2.5
y = 1
answer
solution (1.5 , 1)
You find the area of base then multiply by height so you do 9x9x3.14 and then times that by12 again, equation, 9x9x12x3.14=.im too lazy to do the rest, just use a calculator I guess
Answer:
v= 141.37
Step-by-step explanation:
π · 3^2 · 15/ 3
=141.37167
<span>-2.875
Here you go............</span>