Answer:
a) 1.24 g/ml
b) 2.4%
Step-by-step explanation:
density = mass/volume
volume of sample = 28.4 - 15 = 13.4mL
density = 13.4/10.8
=1.24 g/ml
percent error
1.27 - 1.24 = 0.03
0.03/1.24 *100% = 2.4% error
Answer:
Step-by-step explanation:
Given the exponential growth formula expressed as where P is the countrys population and t is the time.
Initially in 1991, at t= 0, P = 147 million
If by 1998 it was 153 million, this means that the population is 153 million 7 years later i.e when t = 7, P = 153. On substituting into the formula to get the constant 'k';
To estimate the population in 2017, to number of years from 1991 to 2017 is 26 years. Hence we are to find the value of P given t = 27, A = 147 and k = 0.00574
Hence the population in 2017 using exponential growth formula to the nearest million is 171 million.
In scientific notation, this distance is
?x10
Answer:
9.461 × 10^17
Step-by-step explanation:
946,100,000,000,000,000 is 9.461x10^17