no xnever be equal to 1 as 5+1 will never be greater than 7 so at least x=3
Answer:
0.274g/cm^3
Step-by-step explanation:
density = mass / volume
so d = 575.4 / 210
d = 0.274g/cm^3
1369
3.7 x 10 = 37 x 37 = 1369
It is an arithmetic sequence with common difference d = 30.
a₂₀ = a₁ + (20-1)d = -8 + 19·30 = 562
Answer: 18