Answer:
Hello,
60L
Step-by-step explanation:
Quantity of water /Quantity of milk =2/1
Quantity of mixture= Quantity of water +Quantity of milk =60L
Quantity of milk =40 L
Quantity of water =20 L
Let say x the quantity of water to be added
New ratio =1/2=40/(20+x)
20+x=80 (cross products)
<u>x=60 </u> (L)
Given :
p = 0.68
margin of error, E = 0.1
99% confident interval
alpha, α = 1 - 0.99
= 0.01
∴ 
(z-critical value)
Sample size = 
= 144.37
= 145 (rounded off)
Therefore, there are 145 businesses does she need to sample to meet this criteria.
the answer for this question is cot theta is equal to 24/ 7
Answer:
x^4 and 4
Step-by-step explanation:
The formula for finding the derivative of a function includes the following:
f(a+h) - f(a)
and in this case we have
f(4+h) - f(4) => f(4 + h)^4 - 4^4.
Comparing this to
f(a + h) - f(a), we see that a must be 4 and f(x) must be x^4.
