Answer:
a) Two half lives, b) 
Step-by-step explanation:
a) The polonium-210 has a half life of 138.4 days. Therefore, 1.994 half lives have past.
b) Mass decay is described by the following exponential model:
The time constant for the isotope is:
The mass of the isotope after 276 days is:
Answer:god
Step-by-step explanation: god is love right is god is right
Answer:
it will be $80.00 and your saving $20.00
Step-by-step explanation:
Answer:
False, 6:4 and 18:8 are equal ratios.
Step-by-step explanation:
Given data:
6:4 ≠ 18:8
Explanation.
1. 6:4 = 6/4 = 3/2
2. 18:8= 18/8 = 9/4 = 3/2
Hence proved:
6:4 = 18:8
The effective rate of interest to the nearest hundredth of a percent is 2.75%
Given:
T-bill value $17,000
purchased at a discount rate of 2.75%
term of 20 weeks.
An effective rate of interest is also referred as the DISCOUNT RATE, market interest rate, the internal rate of return, the annual percentage rate, and yield to maturity.
Since the discount rate is given, it is also the effective rate of interest.
