Answer:
b= 8 1/10 i think
Step-by-step explanation:
you might want to test it out tho. I really hope this helps
Answer:
784 cm
Step-by-step explanation:
7*8=56
24*8=192
24*7=168 168*2=336
=25 25*8 = 200
56+192+336+200=784
Answer:
170 min
Step-by-step explanation:
We know that there is a kinetics of the first order, which has the following equation:
ln ([A] t / [A] o) = -k * t
Solving for t:
t = - ln ([A] t / [A] o) / k
How we want to know is the time required with 10%, so [A] t / [A] o = 100% - 10%, that is, 90% = 0.9. We also know that k = 6.2 * (10 ^ -4)
Knowing this, we replace:
t = - ln (0.90) /6.2 * (10 ^ -4)
t = 170 min
Which means it will take 170 minutes.
Answer:
its a square
Step-by-step explanation:
its all sides are equal so its a square
Answer:
x = 27
Step-by-step explanation:
2/3x -2= 16
+2 +2
---------------------
2/3x = 18
multiply by 3 on both sides
2x = 54
divide by two on both sides
x= 27
