Answer:
the answer is 31.9 years
Step-by-step explanation:
initial mass, 
= 150 gram
half life, 
= 32 years
new mass = half of initial mass = M = 0.5
formula , M = 
where x is the number of years required.
therefore 0.5 = 
therefore -0.0217 x = 
therefore x = 
= 31.942
In looking at it I would guess it is asking which of the points is on the line? To answer that you would have to take each point an plug it into the equation and see if it is true.
3x - 7 = y
A(9,20)
3(9) - 7 = 20
27 - 7 = 20
20 = 20 True - this point is on the line
B(5,0)
3(5) - 7 = 0
15 - 7 = 0
8 = 0 False - this point is not on the line
C(3,2)
3(3) - 7 = 2
9 - 7 = 2
2 = 2 True - this point is on the line
I hope this helps
0.987
8 is in the hundredths
0.45
5 is in the hundredths
1/7 the speed of a cheetah is 10 mph because an average cheetah can run 70 miles per hour. This means time to do some division. Envision the denominator of 1/7 (7) as 70 and then the numerator (1) should be 10. Divide 70 by 7 should be 10. Hope this helps.
Step-by-step explanation:
diameter is 84 thereare 2 time 42 .84.
follow me nice study bye .
