Answer:
skew
Step-by-step explanation:
Lines a and c are skew
Reason:
1) Because they will never intersect each other.
2) They are not on the same plane.
3) They are not parallel and perpendicular.
Thus the right option is skew....
Answer:
I'm not sure.
Step-by-step explanation:
But I will choose c.
45 MINUTES to run6 mile
Let the final score of White Sox = x
the final score of Marlins = y
White Sox won by 2 runs. Thus
x = y +2
White Sox had twice as many runs as Marlins
x = 2y
From the equations,
2y = y + 2
=> 2y - y = 2
=> y = 2
x = 2y = 2×2 = 4
Hence, final score of
White Sox = 4
Marlins = 2
Answer:
The Time period required for decay of Iodine-125 to half of its value is 60 days .
Step-by-step explanation:
Given as :
The initial quantity of iodine-125 = 0.4 gram
The rate of decay = 1.15 %
Let The time period for decay = x day
The finial quantity after decay = half of initial quantity
I.e The finial quantity after decay = 0.2 gram
Now ,
The final quantity after decay = initial quantity × ![(1-\dfrac{\textrm rate}{100})^{\textrm Time}](https://tex.z-dn.net/?f=%281-%5Cdfrac%7B%5Ctextrm%20rate%7D%7B100%7D%29%5E%7B%5Ctextrm%20Time%7D)
Or, 0.2 gm = 0.4 gm × ![(1-\dfrac{\textrm 1.15}{100})^{\textrm x}](https://tex.z-dn.net/?f=%281-%5Cdfrac%7B%5Ctextrm%201.15%7D%7B100%7D%29%5E%7B%5Ctextrm%20x%7D)
or,
= ![(0.9885)^{x}](https://tex.z-dn.net/?f=%280.9885%29%5E%7Bx%7D)
Or, 0.5 = ![(0.9885)^{x}](https://tex.z-dn.net/?f=%280.9885%29%5E%7Bx%7D)
Or,
= 0.9885
Taking log both side
log (
) = Log 0.9885
or,
× log 0.5 = - 0.0050233
or,
× ( - 0.301029 ) = - 0.0050233
or, x =
∴ x = 59.92 ≈ 60 days
Hence The Time period required for decay of Iodine-125 to half of its value is 60 days . Answer