9514 1404 393
Answer:
30 hours
Step-by-step explanation:
The relation between time, speed, and distance is ...
time = distance/speed
time = (15 km)/(0.5 km/h) = 30 h
It takes 30 hours for the lava to reach the sea.
Answer:
never
Step-by-step explanation:
The expression: ~q means "not q"
If ~q is false, then q is true
The expression:
If p is true and ~q is false
is equivalent to:
If p is true and q is true
then:
If p is true and q is true, then p -> q is <u>never</u> false (or is always true, see table attached). Or:
If p is true and ~q is false, then p -> ~q is <u>never</u> false.
Answer:
N(c) = (C - 15)/20.
Step-by-step explanation:
C(n) = 20n + 15
20n = C- 15
N(c) = (C - 15)/20.
Answer:
Quadrillateral and I hope the answer helps
Step-by-step explanation:
beacuse it has 4 sides