The answer to this is negative
1$ = 100 cents, 1 hour = 60 minutes
$7.80/hour = (7.8*100) cents / (1*60)minutes
= 780 cents/60 minutes
= 13 cents/minute
<span>Option b.</span>
To model half-life, use the formula
. Here,
is the amount remaining after a length of time
.
is the amount that you start with.
is the half-life. You plug in 50 for
, 10 for
, and 25 for
. You get
.
120 because 60 times two is 120 and six times two is twelve
Answer:
n = 8√2
Step-by-step explanation:
It's a 30-60-90 triangle, so n = 2×4√6/√3 = 8√2