Px + qy = r
2px - qy = 2r
----------------add
3px = 3r
x = 3r/3p
x = r/p
Answer:The surface area of the door is 33,680
Step-by-step explanation:
The answer is correct.
Step 1 distribute the 5 across (8+0.2)
6^3+5(8+0.2)
6^3+40+1
6^3+41 (<em>I simplified the +40 and the +1</em>)
Step 2 take 6 to the power of 3
6^3+41
6x6x6 6x6=36 36x6=216
216+41 (<em>Simplify!</em>)
257
I hope this helped!
Answer:
BC = 30.73
Here,

so first solve for QD




Now! <u>using Pythagoras theorem,</u>
- BC = 30.73 ( rounded to nearest hundredth )