<span><span>A <span>= <span>π <span>r</span></span></span></span></span>² <span><span><span>= <span>π </span></span></span></span>×<span><span><span><span> <span>5</span></span></span></span></span>²<span><span><span><span><span> </span></span></span><span>≈ 78.53982
</span></span><span>A </span></span>≈ 78.4
the first one! please let me know it its wrong
Answer:
L=7.94 feet, W=9.88 feet
Step-by-step explanation:
perimeter=78 feet
LxW=78
2L-6=W
substitute
Lx(2L-6)=78
2L^2-6L=78
2L^2-6L-78=0
factor
(2L-15.86)(L+4.95)=0
2L=15.88, L=7.94
L=-7.94 feet
The scale factor is 4:1 ..........
C = 2A - 6
C = 52
52 = 2A - 6
52 + 6 = 2A
58 = 2A
58/2 = A
29 = A <==alternative schools
