Answer:
1. Cong SSS 2.Cong SSS 3.Not Cong 4.Not Cong 5.Cong SAS 6.Cong SSS 7.Cong SAS 8.Cong SSS 9.Cong SSS 10.Cong SAS 11.d 12.a 13.a 14.b 15.a
Step-by-step explanation:
The half-life for such a substance is the time 
required to have the amount (in grams 
) at time (in seconds 
), 
, decay to half the starting amount 
. In other words, for krypton-91, after 10 seconds we would have 
. We can use this information to solve for 
, then plug in various values of to find the amount of krypton-91 that's left...
But we don't need to! We already know it takes 10 seconds for half of the substance to decay. So if we start with 16 grams, then after 10 seconds, 8 grams will remain.
10s later (after a total of 20 seconds), 4g will remain.
10s later (30s), 2g will remain.
10s later (40s), 1g will remain.
10s later (50s), 1/2 g will remain.
Answer:
Step-by-step explanation:
Multiplier: -175/3 Decrease: 23⅓ %
Step-by-step explanation: 75 = 250 - 3(d) d = -175/3 Y = 250 - (175/3)m
Where m is the no.
of months Y is the new value
(175/3)/250 × 100 = 70/3 %
Or 23⅓ %
Answer:
Minimum: 8 Q1: 14 Median: 17.5 Q3: 30 Maximum: 32
Step-by-step explanation:
8, 9, 11, 14, 17, 23, 29,30, 32, 32
