Any one talented student? if long answer plzz
Can anyone solve them all ???
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Step-by-step explanation:

A=3*10^5*2.5*10^3/2.25*10^2=

300000*2500=750000000

750000000/225=3333333.3333

B=4.8*10^-5*3.2*10^9/1.6*10^16*2.4*10^-3=

0.000048*3200000000=153600   or 1.536*10^5 Answer

16000000000000000*0.0024=3.84*10^13

153600/3.84*10^13=0.000000000.4    0r 4*10^-9 Answer

C=6.7*10^-11*2.25*10^20*3.6*10^20/(3.35*10^4)^2

0.000000000067*250000000000000000000*3600000000000000/(33500)^2=4.967764727*10^20 Answer

D=9.1*10^7+6.5*10^7/1.3*10^3

91000000+65000000/1300=120000   or 1.2*10^5 Answer

E=2.5*10^3+3.9*10^4/1.6*10^2

5000+39000/160=259.375 Answer

F=7.2*10^-4.8*10^5/2.4*10^3

7200000-480000/2400=2800 or 2.8*10^3 Answer

Hope this help xx

89

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)