Tutors Answer Your Questions about Finite-and-infinite-sets (FREE)
Question 173100: Given A = { 3, 9, 10}, B = {2, 7, 9}, C = { 1, 5, 10} and Universal Set,
U = {1,2,3,4,5,6,7,8,9,10} FIND:
A. the complement of A U B
B. A intersect C
C. (A intersect B) intersect C
D. the complement of B
Click here to see answer by jim_thompson5910(13811)   |
Question 176619: I was asked from some of my friends and I cannot solve this logical problem:
Ex. We have 20 apples and we have to eat them for 5 days. Each day we must eat apples in an odd number (ex. in 1st day 3apples in 2nd day 7 apples...) only in an odd number. Can anyone of you tell me how many apples we should eat from 1st to 5th day to complete the number of 20 apples! Thanks!
Click here to see answer by solver91311(5106)  |
Question 176619: I was asked from some of my friends and I cannot solve this logical problem:
Ex. We have 20 apples and we have to eat them for 5 days. Each day we must eat apples in an odd number (ex. in 1st day 3apples in 2nd day 7 apples...) only in an odd number. Can anyone of you tell me how many apples we should eat from 1st to 5th day to complete the number of 20 apples! Thanks!
Click here to see answer by Mathtut(3670) |
Question 189438This question is from textbook
: Suppose that you hold three aces and two different small cards in a game of draw poker. I you discard the two small cards, what are your chances of improving your hand on the draw? The hand will be improved either by drawing another ace and any other card or by drawing a pair. (hint: Because this is a fair game and you do not know what cards are in the other players' hands, treat their cards as if they were part of the deck.)This question is from textbook
Click here to see answer by edjones(3330)  |
Question 204818: Mary has 200 knitted squares. Sue has 5000 knitted squares. Mary makes 20 knitted squares per hour. Sue makes 15 knitted squares per hour. Mary and Sue will start working (and continue to work every hour) to add to their knitted square collections on the same day at the same hour.
After the first hour, how many knitted squares will Mary have; how many knitted squares will Sue have? After the 2nd hour, 3rd hour?
How many hours must they work until they both have the same amount of knitted squares?
On the day they have the same amount of knitted squares, how many squares will they each have?
Click here to see answer by vleith(1983) |
Question 204841: Jack and Bob are farmers. Jack grows apples, Bob grows oranges. On May 9th, Jack has harvested 5000 apples, and Bob has harvested 300 oranges. However, Jack will harvest apples at a rate of 5/hr, and Bob will harvest oranges at a rate of 30/’hr. If Jack and Bob eventually end up with the exact same number of fruits, Jack agreed to eat 100 apples, and both will stop harvesting. If Jack and Bob never end up with the exact same number of fruits, both will stop harvesting on the hour that Bob has more fruit than Jack.
What is the mathematical equation used to solve this problem?
Will Jack have to eat 100 apples?
How many apples does Jack have at the end? How many oranges does Bob have at the end?
If two painters can paint a house in 5 hours, how many painters does it take to paint twenty houses in 10 hours. All painters paint at effectively the same speed.
Click here to see answer by rfer(2696) |
Question 205818: 24 use the multiplication principle to solve the problem.
A biologist is attemptingto classify plant species by assigning 5 initials to each species. how many classifications are possible using this method.
A.130
B.11,881,376
C.9,765,625
D.100,000
Click here to see answer by stanbon(26367) |
Question 205993This question is from textbook
: Can someone please help me with this problem:
Find the odds in favor of the indicated event.
Rolling a 4 with a fair die.
a. 1 to 4
b. 1 to 5
c. 1 to 6
d. 2 to 3This question is from textbook
Click here to see answer by edjones(3330) |
Question 205991: 4.let U= {q,r,s,t,u,v,w,x,y,z}; A= {q,s,u,w,y};and C={v,w,x,y,z,}; list the members of the indicated set , using set braces
A'u B
A.{Q,R,S,T,V,X,Y,Z}
B.{S,U,W}
C.{R,S,T,U,V,W,X,Z}
D.{Q,S,T,U,V,W,X,Y}
Click here to see answer by Edwin McCravy(2938) |
Question 206370: 20 The population of a small country increases according to the function B=900,000e0.03t, where T is measured in years. How many people will the country have after 4 years
a.828,737
b.1,014,747
c.1,186,431
d.1,908,237
Click here to see answer by stanbon(26367) |
Question 208033: Find the sum of each of the following infinite series. If a series does not have a sum write "no sum" as the answer.
1/2+1+2+4
I know that to solve thisyou just put S=A/1-R (A= first term, R= ratio) yet I dont get how I should do it with the fraction 1/2 (I know it sounds stupid but I dont get how to solve it when it starts with a fraction =/)
Click here to see answer by rapaljer(3631) |
Question 230930: In how many ways can 5 people be chosen and arranged in a straight line, if there are 11 people from whom to chose?
I tried 11 x 5 to get the answer 55 but I am thinking that is the wrong way to solve this problem. Thank you.
Click here to see answer by Alan3354(6153)  |
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Older solutions: 1..45, 46..90
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