
The false (wrong) equation among them is : A

Because any number in a modulus comes out to be positive.
Answer:
#7 is 4.7
Step-by-step explanation:
Circumference is Pi x diameter
Answer:
The N value represents a standard value of energy required to penetrate 30 cm into soil by percussion drilling. It is standardized as the energy of a falling hammer from a height of 0,76 m.
Step-by-step explanation:
30)
10 x 6 = 60
11 x 4 = 44
12 x 4 = 48
60 + 44 + 48 = 152 cm^2
answer: area = 152 cm^2