when x= -4 ,f(x)=2
Step-by-step explanation:
the coordinate in which f(x) i.e y=2 is (-4,2)
thus x= -4
The formula for half-life is given by:
N(t)=Ne^(-λt)
or
N(t)=N(1/2)^(t/τ)
where:
t=time
N=initial amount
N(t)=final amount
τ=half-life
thus the time taken for the drug to decay will be:
10=80(1/2)^(t/8)
1/8=(1/2)^(t/8)
introducing natural logs;
ln (1/8)=(t/8)ln (1/2)
thus;
[ln 1/8]/[ln 1/2]=t/8
3=t/8
t=3*8
t=24 hours
the answer is 24 hours
Answer:
Step-by-step explanation:
Remark
You have 3 angles which are congruent. You can prove similarity. You cannot prove congruency. You must have 1 side to show conguency.
Step-by-step explanation:
According to the question a(n) = -5 for all real values of n.
So the 12th term in the sequence is -5.
With all due respect, I'm guessing that you're fine with the question,
but you could use some help on the answer. Am I right ?
-- The answer has something to do with the total amount the coach spent,
so we'll need to know that amount. Let's find it now:
(9 chickens) x ($5 each) = $45 for chicken
(15 burgers) x ($6 each) = $90 for burgers
Total amount he spent: ($45 + $90) = <u>$135</u> all together ( nice coach ! )
What part of it was used for the chickens ?
Remember, he spent $45 for chickens.
$45 / $135 = 1/3 = 0.33333.... = <em>( 33 and 1/3 ) percent </em>
Now I'm wondering ... it doesn't say anywhere in the problem ...
do you think he gave any of that food to the team ?