Answer:
4; 12 (refer to explanation)
Step-by-step explanation:
IF: 12 = total plants; 3 = amount of rows then,
12 ÷ 3 = 4
There are 4 plants per row.
IF: 12 = plants per row; 3 = amount of rows,
12 × 3 = 36 total plants; 12 plants in each row.
AC² = AD² + DB ²
25 = AD² + 9
AD²= 25 - 9
AD² = 16
AD = 4
Area = 4*3 /2
= 6cm
b
-1,355= -1355/1000
-1,352= -1352/1000
x =±2 sqrt(6)
x^2 = 24
Take the square root of each side
sqrt(x^2) = sqrt(24)
x = ±sqrt(4*6)
x =±sqrt(4) sqrt(6)
