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Question 34445: When using the quadratic formula to solve , what is the value of A?
Click here to see answer by Earlsdon(6294)

Question 35137: How many different ways can 13 different runners finish first, second and third place in a race? How can you solve this equation when in class we are working on permutaions and combinations as well as probabitly.
Click here to see answer by checkley71(8403)

Question 35138: Two urns each contain blue and green balls. The first urn has 2 blue and 3 green. The second urn has 2 blue and 5 green. What is the probaility that both balls will be green? I can't figure out fraction problems.
Click here to see answer by longjonsilver(2297)

Question 35136: A state lottery consists of drawing 4 numbers from the first 40 positive intergers. Find the probabilty of winning the lottery? I seriously am stunned by this question. I tried to understand it but it made no sense to me. How do you solve this?
Click here to see answer by longjonsilver(2297)

Question 35141: 4 people are in the math club. How many 2 person teams can be formed from the 4
Click here to see answer by usyim88hk(158)

Question 35146: What is the probailty of randomly drawing a card with a 1 and spinning a spinner and it landing on a 4. The cards are numbered 0 to 7 while the spinner is numbered 0 to 5
Click here to see answer by checkley71(8403)

Question 35214: topic: Descarte's rule of signs
use Descartes rule of signs to determine the possible numbers of positive and negative zeros of the following functions:
1) f(x)=5x^3+3x^2-6x+9
2) f(x)=-2x^5+4x^3-2x^2-5
Click here to see answer by venugopalramana(3286)

Question 35135: A cafe server has a variety of stuffed potatoes. There are 3 types of potatoes to chose from: rusket, white and red. There are four different fillers. How many different varieties of stuffed potatoes can you chose from. In class we are working on permutations and combinations. How can you solve this.
Click here to see answer by longjonsilver(2297)

Question 35133: We are working on combinations and permutaions which involve factorials most of the time.
How many 4 letter combinations can be made from the letters f,g,h,i,j & k. No letters can repeat themselves and the letter do not have to form a word. How do you solve this?
Click here to see answer by venugopalramana(3286)

Question 35749: Solution A is 20% alcohol, and solution B is 70% alcohol. How much of each is needed to make 50 literse of a solution that is 60% alcohol?
Click here to see answer by venugopalramana(3286)

Question 35748: In a right triangle, the legs are 3 and 3 sqrt3. Find the length of the hypotenuse.
Click here to see answer by venugopalramana(3286)

Question 35730: A cyclist bikes 12 miles due west of her house before changing direction. She travels north an additional 16 miles. If she bikes home on the most direct path back to her house, how many miles must she travel?
Click here to see answer by venugopalramana(3286)

Question 35729: A cyclist bikes 12 miles due west of her house before changing direction. She travels north an additional 16 miles. If she bikes home on the most direct path back to her house, how many miles must she travel?
Click here to see answer by venugopalramana(3286)

Question 35930: I'v etried everything to sole this but for some resason I just can't seem to get it. I would really apperciate some help with this one! Thank you!
135x2 - 222x + 91
Click here to see answer by rapaljer(4671)

Question 35945: well my question is more like a refreshment for the brain... if my problem is
2/3 : 5/8 = ....... well if i'm not mistaking i have to cross multiply ?? so i would realy apreciate it if you could take the time to give me some Brain food i'd be very greatfull.. thank you Aldrcih
Click here to see answer by rapaljer(4671)

Question 36131: Write an explicit formula for the nth term of each arithmetic sequence
6,8,10,12,14.....
Click here to see answer by stanbon(75887)

Question 36132: Find the three arithmetic means between 18 and -10
Click here to see answer by stanbon(75887)

Question 36132: Find the three arithmetic means between 18 and -10
Click here to see answer by rapaljer(4671)

Question 36128: List the first four terms of each arithmetic sequence
tn= -3+ (n-1)(5)
Click here to see answer by stanbon(75887)

Question 36076: A paleontonlogist finds a bone that has 25% of the amount of carbon-14 found in living b tissue. How old is the bone?
Click here to see answer by stanbon(75887)

Question 36173: A phone company charges $1.00 for the first three minutes of a long-distance call and $0.30 each for additional minute. A 4% federal tax is then added to the coast of the call. Find the total cost of a 23 minute call.
Click here to see answer by checkley71(8403)

Question 36176: Suppose W varies directly as x and y and inversely as Z, and W=48 when X=2, Y=8 and Z=12. Find W when X=12, Y=6 and Z=24.
Click here to see answer by kev82(151)

Question 36749:
Click here to see answer by Cintchr(481)

Question 36751: solve using the quadratic formula

Click here to see answer by Cintchr(481)

Question 36753: solve using quadratic formula

Click here to see answer by stanbon(75887)

Question 36857: can anyone tell me how to graph an equation, for example like
y = 2x + 2
Click here to see answer by checkley71(8403)

Question 37219: In a town election, the winning candidate had 220 more votes
than the loser. If 810 votes were cast in all, how many votes did each candidate receive?
Click here to see answer by Nate(3500)

Question 37520: Can you help me find the linear equation and solution to this problem?
A river has a current of 2mph. Find the speed of Leroy's boat in still water if it goes 30 miles downstream in the same time it takes to go 18 miles upstream.
Thanks
Alan
Click here to see answer by josmiceli(19441)

Question 35143: How many different dgsled teams of 6 dogs can be made from a group of 16 dogs.
Click here to see answer by fractalier(6550)

Question 37573: factor by grouping with complete solution
1. x� - y� - x �y
2. x� - y� - x� + 2xy � y�
3. x� + xy � 2y� - x� + y�
Click here to see answer by venugopalramana(3286)

Question 37881: Help please...Evalute the function for the value specified- you need to arrive at a final numerical answer for each part...
f(x)=x2-7+10
A)f(0)
B)f(5)
C f(-2)
Click here to see answer by junior403(76)

Question 28331: Amountain bike is on sale for 20% off.The regular price is $99.95. About how is the discount?
Click here to see answer by fractalier(6550)

Question 38112: __________ LINES ARE LINES THAT FORM RIGHT ANGLES
Click here to see answer by fractalier(6550)

Question 38125: _________________ LINES ARE ALWAYS THE SAME DISTANCE APART AND DO NOT INTERSECT
Click here to see answer by ilana(307)

Question 38124: _________ LINES ARE LINES THAT FORM RIGHT ANGLES
Click here to see answer by ilana(307)

Question 35142: Evacute. this is a combination problem.
5C3 x 12C10/11C7
combination method is nCr and the problem above is in nCr form.
Click here to see answer by fractalier(6550)

Question 38310: Please help! I am helping my daughter review for a test from a review guide. not having a formula to check answers I'm not sure if she did it correctly here is one of the problems.
combining like terms and write in standard form
(4xthird power+2x-3xsq+1)+(2xthird pr-5x+2)

I came up w/ 6third power-3xsq+7x+3
Click here to see answer by ilana(307)

Question 38327: Last problem for study guide
factor each expression
m^2-4m-21 she has an answer of -7m^2+ -3m
very confused since she does not have her work shown
Click here to see answer by stanbon(75887)

Question 38326: trying to just double check the rest of my daughters review
foiling expressions

(x+3)(x^2+3x-2) I came up with 3x^4+3-2
It does not sound right but I tried the answer my daughter has is 3x^2+3-2
Click here to see answer by stanbon(75887)

Question 38797: 24 1/3 X 8 1/3 (/) 3 1/3
Click here to see answer by checkley71(8403)

Question 38865:

Click here to see answer by Seneca(1)

Question 38869:
= x+3
is it right?
Click here to see answer by Earlsdon(6294)

Question 38888:
Click here to see answer by longjonsilver(2297)

Question 38868:
the answer i got is 14, but my teacher said i got wrong.....:(
Click here to see answer by longjonsilver(2297)

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