A spherical balloon is being inflated. Find the rate (in ft2/ft) of increase of the surface area (S = 4ar?) with respect to the radius r when r is each of the following. (a) 1 ft ft2/ft (b) 5 ft ft2/ft (c) 8 ft ft?/ft

Q: In how many ways could members of the following club line up all 10 members for a photograph? N =…

A: Given: 10 members of a club.To find: Total number of ways in which the members of the club can line…

Q: the same nationality are

A:

Q: if these five numbers form a pattern such that the differernce between each pair of numbers is the…

A:

Q: Pole prostokąta

A:

Q: using technolgy to find teh number of ways 17 employees can be chosen from 200

A: We have given that Total number of employees (n) = 200 Number of employees to be selected(r) =17…

Q: how do I write x=-4,12.5 in set notation?

A: To write set notation we need to write in side { }

Q: Numbers are the foundation of math in the middle ages.  True or False?

A: True

Q: Choose the property of real numbers that justifies the equation. a1 = a (Choose one) (s-4) e = 8…

A: To write the properties of real number:a·1=a8·4·c=8·4·c9·(b+2)=9·b+9·cd+(-d)=0

Q: Evaluate & A 2.1 y²dx + 3xydy

A:

Q: Looking for the answers for q1, q3, and iqr and how to get it

A: Given Data: Let X represent the random variable Mean=16 Standard deviation=5.5   X~ Normal 16,…

Q: what mark must a candidate achieve to secure an inter

A:

Q: what is the degree of freedom? is it 14 ? or 13?  and is a not numbers

A: From the given information, n1=14 and n2=12.

Q: Let A = {Dirk, Johan, Frans, Sarie}, B = {Frans, Sarie, Tina, Klaas, Henrika}, C = {Hans, Frans}.…

A: We want to find number of elements in A∪B.

Q: Find the class boundaries , midpoint and class width for the class          125 ------ 131

A: Class interval=(125 , 131)

Q: The 68 students in a classical music lecture class were polled, with the results that 36 like…

A:

Q: A realtor uses a lock box to store the keys to a house that is for sale. The access code for the…

A:

Q: In this question, I don't understand the highlight why it get 10.5 since the question is only 10?…

A: It is given than n=500 and p=0.05.