Answer:
2.9 years
Step-by-step explanation:
Given that :
Half-life t1/2 = 9 years
Initial mass = I = 70 grams
A = final mass = 56 grams
t = time taken to reach final amount
Using the exponential half life relation :
A = I(0.5)^t/t1/2
56 = 70(0.5)^t/9
56/70 = 0.5^t/9
0.8 = 0.5^t/9
Log 0.8 = log 0.5^t/9
−0.096910 = −0.301029 * t/9
t/9 = 0.096910 / 0.301029
t/9 = 0.3219291
t = 0.3219291 * 9
t = 2.8973619
t = 2.9 years
Answer:
Width = 30
Step-by-step explanation:
Area = 18x * 10y = 180xy
Length = 6xy
Width = ?
Since the shape of the office complex is a rectangle,
Area of a rectangle = length × width
180xy = 6xy × width
Width = 180xy / 6xy
Width = 30
Answer: The last choice
Tension between a characters two desires.
Step-by-step explanation:
External conflict includes
Man vs Man
Man vs Nature
Man vs society
which is what the first three choices show. while the last choice shows an internal conflict.
Answer:
Rhe equation would be y= -2x+8
Answer:
B
Step-by-step explanation:
f(x)=6^x has a full, positive number that is greater than one. The others are all fractions, and either are almost straight or decrease. If you graph all four, you can also see that f(x)=6^x is the only function that is increasing.
Hope this helped.