Mathematics

Math Probability Can you tell me what's the sample space for 2 coins and 2 die

Is it 144? But I do not know how to do it step by step. Does it have to do something with the ! factorial or the nPr or nCr? Can you explain the process? Thanks.-Coin_1Coin_2Die_1Die_2 ———————————————

Could someone tell me what the answers are to these math problems and how u solved it

a) 2/a +2/b -2/ab b)5 + x/y - y/x c)1/3x+2+ + 1/x+1 + 1 d)7/x+1 + x-1 it looks weird i know but / means divided by and i dont know how to write divided by with this -- so yea... thnx :P-appears to

Question about multiplying with trig

I have a homework equation that I must prove. The equation is: (cos^2)2x - (sin^2)2x = cos4x I started to break down the left side, and factored out a 2. So my equation then looked like: 2(cos^2x

A Math Word Problem Question

Kelly and Ken are on their way to visit a zoo in Miami over Spring Break. While looking at the train schedule at the train station, they run into two friends who are also trying to visit the zoo.Ther

Is P(-2) a root of P(x) =x^3 - 2x^2 - 5x + 6 ? Explain why or why not

pleasee explainn-Root means that it cuts x axis where the value of y = 0 substitute this value of x=-2 into the equation to get: -P(-2) = -2^3 -2(-2^2) - 5*-2 + 6=-8 -2(4) +10 + 6=-8-8+10+6=0 P(-2)

A circle of area 49(pi) has a circumference of what

14(PI)-Using the equationA=(pi) r^2 49(pi) / (pi)=49 the square root of 49 is 7 so r (radius) = 7 to find circumfrence, we use the equation C= 2 (pi) r C= 2 (pi) 7 the answer is 14 (pi)-Area of a circ

What is the commission earned by the agent

A real estate agent commission may be based on the equation C=0.06s + 450, where s represents the total sales. If the agent sells a property for $125,000, what is the commission earned by the agent?-$

Rearrange 20t-t² in the form p - (t - q)² where p and q are constants

Thank you, please leave calculations so I can check your method, thank you.-This is just completing the square. First factor out a –1 ... –1(t² – 20t+ ____) + _____ Take half the middle coeficient a

Which of these equations has a rational solution

Which of these equations has a rational solution? A: 2(over)5 x^3=26 B: 3(over)5 x^2=54 C: 2(over)5 x^3=50 Can you please explain each stage to achieving the answer, Im really stuck and dont understa

MATH GRADE 8 PROBLEM SOLVING HELP PLZ??? ESTIMATING AND ROUNDING ETC.

Math work help? grade 8.? Here are the sums: 1. a) 10 pesos = .909198 U.S. dollars. Use estimation and rounding to find out how many US dollars equal 200 pesos. b) How many pesos approximately are 4

Explain in your own words the various methods used to factor any expression with 2,3 or 4 terms

plsss help me :)-Check cubic equation,quadratic equation,Quartic function in wikipedia

Volume integral, how do I find the limits for my integral

http://img9.imageshack.us/img9/4537/unle… Hi, does anyone know how to find the integral that needs to be evaluated here? I cant understand how to find it from the region-Use multivariable change of c

Probability help pls! Will choose best answer to best explainer

1. a roulette wheel consists of 38 numbers: 1 to 36, 0, and 00. What is the probability that a roulette ball will come go rest on an even number other than 0 or 00? 2. Two coins are tossed. Consider

Trig identities Proove that L.S. = R.S.

cos4X-sin4X=1-2sin2X-cos^4(x) - sin^4(x) = 1 - 2sin^2(x) Alright, work with the left side and factor it as a difference of squares: (cos^2(x) + sin^2(x))(cos^2(x) - sin^2(x)) Now remember that cos^

Help... i have exams tomorrow. give 10 points. urgent

given: tana=5/12 and 0 Calculate: A=(26sina+12seca)/(15cota) I know that tana=sina/cosa but tana=5/12 and sina cant be 5, the maximum of sina is 1!!! HELP!!!!!-.Q.Given: tana=5/12 and 0 Calculate