Triangle Area = .5 * base * height
48 = .5 * (x +4) * x
48 = (.5x + 2) * x
48 = .5x^2 + 2x
.5x^2 + 2x -48 = 0
x = 8
base = 12
18+12*4=18+48=66 ft
1st floor is 18ft
next 4 are 12ft
Answer:
c
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
19.32=density D=m÷v so, v=m÷d
v=575÷19.32 v=about 29.8
