Answer:
a: 210 codes are possible.
b: 1/210 is the probability of entering the correct code.
Answer:
T-shirt
Step-by-step explanation:
T-shirt because she has to pay bills.
Hope this helps plz hit the crown ;D
13. No
14. No
15. Yes; Domain: (-4,3) Range: (-4)
Answer:
it takes 24 hours for the bacteria cells to increase to 300
Step-by-step explanation:
WE use the formula

Where A is the initial amount of bacteria= 100
bacteria doubles every 15 hours so b=2
d= 15 because d is the time taken to double the number
t is the number of hours
c is the number of bacteria after t hours = 300
Plug in all the values and solve for 't'

Divide both sides by 100

Now we take log on both sides

As per log property we can move the exponent before log
log a^m = m log(a)

Divide both sides by log(2)

Multiply both sides by 15

t = 23.77
So its approximately 24 hours
4/3(pi)(radius)^3 is the volume formula for a sphere, so you can use that to find the volume. Hope that helped :D