Dice Probability

A. A coin is tossed and then a pair of dice is rolled. Find the probability that the outcome is a Head and a sum of 8     B. A coin is tossed 9 times, find the probability that the first 4 are... more

Five women and three men work in an office (a group of eight). How many ways can you form a committee of three women and two men?

I know that there are 56 ways to get a committee of five people from the group of eight, but have trouble finding more specific values. Another question I have: what is the probability that a... more

11/15/14

How many of each type of ticket should he buy?

Scott is in charge of purchasing a variety of tickets to a baseball game to be given to employees who met or exceeded their sales quotas for the past month. There are 3 types of tickets available... more

11/15/14

the coins in the stores cash register total $12.50

The coins in the cash register total $12.50. The cash register contains only nickels, dimes, and quarters. There are twice as many dimes as nickels. There are also twice as many quarters as dimes.... more

11/15/14

which ordered pairs are solutions of each equation? y = 3x+1 a.(0,1) b. (1/3,2) c. (-1, -2/3) d. (-1,-2)

which ordered pairs are solutions of each equation? y = 3x+1 a.(0,1) b. (1/3,2) c. (-1, -2/3) d. (-1,-2)

Factor Quadratic

4x^2-5x-6   What is the factor for this?

((tan2x)(1+tanx))/tanx = 2/(1-tanx)

can u please help me to prove this rhs=lhs

11/14/14

Given a polynomial f(x) with real coefficients and the following information, find the remaining zeros of f(x). Degree 3 Zeros: 4, 3 + i

A.    -3 - i B.    3 - i and -4 C.    -3 - i and 4 D.    3 - i

11/14/14

Determine whether (x - c) is a factor of f(x). If so, write it in factored form. (x - c) = (x - 2) f(x) = 4x4 - 15x2 - 4

A.   (x - 2) is a factor: (x - 2)(x3 + 4x2 - 7x - 18) B.    (x - 2) is a factor: (x - 2)(4x3 + 8x2 + x +2) C.    (x - 2) is NOT a factor. D.    none of these

Please help me with this math?!?

Below is Brianna’s daily schedule. For each activity, identify the elapsed time from its beginning to its end. Be sure to show your work. Finally, explain why your answer is... more

11/14/14

trace can mow the lawn in 3 hours. if kaden helps then they can mow the lawn in 1 hour.How long does it take kaden to mow the lawn

 trace can mow the lawn in 3 hours. If kaden helps they can mow the lawn in 1 hour. How long does it take kaden alone? 

11/14/14

Factor and evaluate: 21 x 2.3 - 21 x 1.3

This is a question on my math homework. I know how to factor but this factoring and evaluating is confusing.

I dont know this word problem and my parenats dont know either

 Frank solved an equation and got the result x = x. Sarah solved the same equation and got 12 = 12. Frank says that one of them is incorrect because you cannot get different results for the same... more

11/14/14

Solve using the square root property

A supporting wire is to be attached to the top of a 43-foot antenna. If the wire must be anchored 43 feet from the base of the antenna, what length of wire is required? 

11/14/14

solve a word problem

seven times the square of the difference between a number and 5 is -63. Find the number(s)    Solve this by using the square root property 

11/14/14

Solve the problem

you have 84 feet of fencing to enclose a rectangular region. find the dimensions of the rectangle that maximize the enclosed area.   Solve problem involving a quadratic functions minimum or... more

a pool can be filled by one pipe in 12 hours and by another in 36 hours. how long will it take using both pipes?

Algebra word solving problem. I'm having a hard time figuring it out. An answer would be appreciated.

(Solving rational expressions) 12/x = 48/x+9

Solve the rational expression   12 = 48 x   = x+9

Find the number by writing a system of equations and using elimination to solve the equations.

The sum of the digits of a two-digit number is 11. If the digits are reversed, the new number is 45 more than the original number.

11/13/14

How much pure acid should be mixed with 3 gallons of a 40% acid solution in order to get a 90% acid solution

I have tried to solve this using a table but cannot seem to find the correct answer.

Solve for the height

A flag pole is situated on top of a building. The angle of elevation from a point on level ground 330 feet from the building to the top of the flag pole is 63". The angle of elevation from the same... more

11/12/14

Select the approximate values of x that are solutions to f(x) = 0

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -4x2 + 6x + 5.

An arithmetic sequence has first term a and common difference d. The sum of the first 10 terms of the sequence is 162.

a) Show that 10a+45d=162 Given that the sixth term of the sequence is 17. b) Find the value of a and d.

11/12/14

The first term of an arithmetic series is a and the common difference is d. The 18th term is 25, and the 21st term is 32.5

a) Find the general equation for the sequence.   b) Find the value of n which gives the sum of 2750.

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