The answer is 7x + 5y hope this helps!
Answer:
Every week, the radioactivity decreases by a factor of 5
After 1 week, it goes from 5,000 to 1,000
2 weeks 1,000 / 5 =200
3 weeks 200 / 5 = 40
4 weeks 40 / 5 = 8
5 weeks 8 / 5 = 1.6
6 weeks 1.6 / 5 = 0.064
7 weeks 0.064 / 5 = 0.0128
8 weeks .0128 / 5 = 0.00256
9 weeks 0.00256 / 5 = 0.000512
10 weeks 0.000512 / 5 = 0.0001024
Step-by-step explanation:
Answer:
Step-by-step explanation:
use law of sines
Sin(A)/a =Sin(B)/b
Sin(Ф)/ 2 = Sin(110) /5
Sin(Ф) = 2 * Sin(110) /5 (cancel the pi)
Sin(Ф) = 2/5 * Sin(110)
Sin(Ф) =2/5 * 0.93969262
Sin(Ф) = 0.37587704
Ф = arcSin( 0.37587704)
Ф = 22.0785°
Ф = 22.08° ( rounded to nearest 100th)
Yes it’s school p just mind the mean