Answer:
(0.084,0.396)
Step-by-step explanation:
The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as










By rounding to three decimal places we get,

The 99% confidence interval for the proportion of customers who use debit card monthly is (0.084,0.396).
The <em>instantaneous</em> rate of change of <em>g</em> with respect to <em>x</em> at <em>x = π/3</em> is <em>1/2</em>.
<h3>How to determine the instantaneous rate of change of a given function</h3>
The <em>instantaneous</em> rate of change at a given value of
can be found by concept of derivative, which is described below:

Where
is the <em>difference</em> rate.
In this question we must find an expression for the <em>instantaneous</em> rate of change of
if
and evaluate the resulting expression for
. Then, we have the following procedure below:




Now we evaluate
for
:

The <em>instantaneous</em> rate of change of <em>g</em> with respect to <em>x</em> at <em>x = π/3</em> is <em>1/2</em>. 
To learn more on rates of change, we kindly invite to check this verified question: brainly.com/question/11606037
I need to se the blanket to answer
<em>Answer:</em>
<em>Hello There. The answer is 268</em>
Explanation
He spend £140 for 60 jumper
He sells 40%of jumper at £8 for each.
40%of 60
= 40/100 × 60
= 24 jumper
=sells at £8
= 24 ×8 =£192
After ,he sell buy 1 get one half price offer.
Ryan have 60% jumper of 60
= 36/2×8 +36/2×4
=144 + 72
= £216
Total earning= £192 + £216
=£408
So, profit = 408 - 140 = £268
Hope It Helps!
<h3>ItsNobody</h3>