Answer:
-102
Step-by-step explanation:
-38
<u>-120</u>
-158
<u>+56</u>
-102
Answer:
80%
Step-by-step explanation:
First you subtract the 8 from 40 which leaves you with 32
Then you set up your proportion 32/40 = x/100
Cross multiply and divide which leaves you with 80
Answer:
x=4.5 y=18.75
Step-by-step explanation:
solve using pythagorean theorem :
hypothenus²=opposite²+adjacent²
for y:
y²=15²+11.25²
y²=225+126.5625
y²=351.5625
y=18.75
for x:
7.5²=6²+x²
x²=7.5²-6²
x²= 56.25-36
x²=20.25
x=4.5
The half-life of the radioactive substance can be determined through teh equation ln 2 = k (t 1/2) where k is equal to ln (1/(1-0.58)) / 3. Hence t 1/2 is equal to 2.40 days. To decay to 10% of the original amount, ln (1/0.90) / ( ln2) / 2.40, time is equal to 0.37 days.
Answer:
siz tenths its six tenths your welcome
Step-by-step explanation:
