Thursday

September 3, 2015
**Math (algebra)**

Let x,y be complex numbers satisfying x+y=a xy=b, where a and b are positive integers from 1 to 100 inclusive. What is the sum of all possible distinct values of a such that x^3+y^3 is a positive prime number?
*Tuesday, July 16, 2013 by Danny*

**algebra**

A bank teller has 35 bills in $5, $10, and $20 denominations. The total value from these bills is $370.The total number of $10 bills and $20 bills is 7more than the number of $5. How many bills of each denomination?
*Monday, July 15, 2013 by Anonymous*

**Math (algebra)**

Let x and y be real numbers satisfying 4x^2+5y^2=1. Over all such pairs, let the maximum and minimum values of 2x^2+3xy+2y^2 be M and N respectively. If M+N+MN=a/b, where a and b are coprime positive integers, what is the value of a+b?
*Monday, July 15, 2013 by Mark*

**Algebra**

Determine whether the equation defines y as a function of x. y=-17
*Monday, July 15, 2013 by tony*

**algebra**

2 12(p+1) +13(p+1)+3 could this be done in quadratic form? the the (p+1) after 12 is cubed.
*Monday, July 15, 2013 by Anonymous*

**algebra**

A store sold 29 sweatshirts. White ones cost $ 9.95 and yellow ones cost $ 11.50 If $ 305.05 worth of sweatshirts were sold, how many of each were sold. Let x=the number of white sweatshirts Let y= the number of yellow sweat shirts Complete the system of equations. x+y= $ x...
*Monday, July 15, 2013 by angela*

**algebra**

A non toxic floor wax can be made from lemon juice and food grade linseed oil. the amount of oil should be twice the amount of lemon juice. how much of each ingredient is needed to make 36 ounces of floor wax. let x represent the number of ounces of lemon juice and y ...
*Monday, July 15, 2013 by angela*

**Math-Algebra**

^4√(d-3e)^2 (fourth root of (d-3e)^2)
*Monday, July 15, 2013 by Penny*

**Math - Algebra**

What is the tenth root of 16u^2v^4wx^5? Note that the exponent of v is 4w.
*Monday, July 15, 2013 by Penny*

**Algebra**

Is the cube root of -1/1000 q^36 -1/10q^12? Am I right?
*Monday, July 15, 2013 by Kim*

**algebra**

Solve the system using elimination X+3y=5 4x+4y=4 I tried to work this problem and this is what I came up with. x+3y=5 x+4y=20 7y=15 y=7/15 and x= (5+y)/4 (5+7/15)/2 2/15 x=2/15 x=2/15, y=7/15 I would like for someone to check to see if it is correct.
*Monday, July 15, 2013 by angela*

**Algebra**

True or False. 1. If q is negative, then the square root of q^2 = q. 2. If r is positive, then the square root of r^2 = -r.
*Sunday, July 14, 2013 by Kim*

**Algebra**

Simplify ..... 1. the square root of the cube root of 49a^2z^4 2. the fourth root of (d-3e)^2 3. the square root of the the square root of 16b^12c^4
*Sunday, July 14, 2013 by Kim*

**Algebra 2 help **

Consider the following functions. f(x) = x2 − 3x, g(x) =√(x+2) (a) Find (f *g)(x). (Simplify your answer completely.) (B)Find the domain of f *g. (Enter your answer using interval notation.) (c) Find (g *f)(x). (Simplify your answer completely.) (D) Find the domain...
*Sunday, July 14, 2013 by Maya *

**algebra 2**

Which is the standard form of a circle with equation x^2 + 4x + y^2 - 6y = 3? A. (x+2)^2+(y+9)^2=16 B. (x-2)^2+(y-9)^2=3 C. (x+2)^2+(y-3)^=16 D. (x+2)^2+(y-3)^2=3
*Sunday, July 14, 2013 by Sam*

**algebra**

$ 5900 is invested, part of it at 12% and part of it at 8%. For a certain year, the total yield is $ 596.00. How much was invested at each rate.
*Sunday, July 14, 2013 by angela*

**algebra**

Solve the given system by the substitution method. 2x+y=6, 5x-2y=6
*Sunday, July 14, 2013 by angela*

**Algebra**

1. what is the 6th root of 8j^6k^3m^3n? 2. What is the fourth root of 4f^2g^2?
*Sunday, July 14, 2013 by Kim*

**algebra 1**

What is the solution set of the given equation? 4y - 6y + 9y = -2
*Saturday, July 13, 2013 by zach*

**algebra 1**

Which of the following equations has the given solution set? Solution set: Ø
*Saturday, July 13, 2013 by zach*

**algebra 1**

Which of the following would eliminate the variable on the left side of the given equation? 36 - 19w = -6w + 41
*Saturday, July 13, 2013 by zach*

**College Algebra**

Find an equation that has the given solutions. (There are many correct answers.) -1/6, -8/9
*Saturday, July 13, 2013 by Jack*

**College Algebra**

Find all solutions of the equation. Check your solutions in the original equation. (Enter your answers from smallest to largest. Enter NONE in any unused answer blanks.) 16t^2/3 + 40t^1/3 + 25 = 0
*Saturday, July 13, 2013 by Jack*

**College Algebra**

A family drove 1080 miles to their vacation lodge. Because of increased traffic density, their average speed on the return trip was decreased by 6 miles per hour and the trip took 2.5 hours longer. Determine their average speed on the way to the lodge.
*Saturday, July 13, 2013 by Matt*

**College Algebra**

10x^2(x-8)^1/3 + 15x(x-8)^4/3
*Saturday, July 13, 2013 by Matt*

**Algebra**

Determine whether the equation defines y as a function of x. y= -16
*Friday, July 12, 2013 by tony*

**college algebra**

if the altitude and the base of a triangle are each increased by 4 inches the area of the triangle will be increased by 42 square inches. if the altitude is increased by 3 inches and the base is decreased by 2 inches the area will be increased by 5 square inches. find the base...
*Friday, July 12, 2013 by quintana*

**Algebra**

Simplify the square root of of the fifth root of 64q^8v^6 or (√^5√64q^8v^6).
*Thursday, July 11, 2013 by Kim*

**Algebra 2**

I need help...especially finding out the time... At 1:00 a.m., a homicide detective found the reading of a corpse's body temperature to be 88 degrees Fahrenheit. One hour later, the body temperature is 83 degrees Fahrenheit. If the body has been in a 74 degree Fahrenheit ...
*Thursday, July 11, 2013 by Anonymous*

**algebra 2**

Suppose y varies jointly with x and z, and x = 4 when y = 8 and z = -2.What is the value of x when y = 12 and z = 3? A. -4 B. 4 C. 15 D. 9
*Thursday, July 11, 2013 by Sam*

**Pre-Algebra**

c-5/4=3 Please explain. I dont get it!
*Thursday, July 11, 2013 by Celest*

**Pre-Algebra**

3/4q-7=8 *please also post a website
*Thursday, July 11, 2013 by Celest*

**Pre-Algebra**

I need help on these two questions: -d/6+12=-7 b+1/3=2
*Thursday, July 11, 2013 by Celest*

**algebra 2**

solve equation for x atate any restrections ax-bx+2a
*Thursday, July 11, 2013 by Andrew*

**algebra**

Write the equation of the line in slope-intercept form that passes through the point (3, -2) and has a slope of 2.
*Thursday, July 11, 2013 by brianna*

**Algebra 2...**

3|x-6| >= -2 Is this correct? x>=16/3 x<=20/3
*Thursday, July 11, 2013 by Anonymous*

**College Algebra (Urgent)**

The demand equation for a product is p = 60 – 0.0004x, where p is the price per unit and x is the number of units sold. The total revenue for selling x units is shown below. Revenue = xp = x(40 – 0.0004x) How many units must be sold to produce a revenue of $260,000...
*Wednesday, July 10, 2013 by Jack*

**Algebra 2**

At 1:00 a.m., a homicide detective found the reading of a corpse's body temperature to be 88 degrees Fahrenheit. One hour later, the body temperature is 83 degrees Fahrenheit. If the body has been in a 74 degree Fahrenheit room since its death, what is the time of death ...
*Wednesday, July 10, 2013 by Anonymous*

**Algebra 2**

Palmer and teller go to the local ice cream parlor after work that offers 40 flavors of ice cream. Palmer wants a cone with chocolate mousse on top, cherry truffle in the middle, and double Dutch chocolate on the bottom. Teller wants a dish with strawberry, banana, and vanilla...
*Wednesday, July 10, 2013 by Anonymous*

**Algebra 2**

A gas station is giving away free glasses with 5 different designs. What is the probability of collecting all 5 in 15 visits to the gas station?
*Wednesday, July 10, 2013 by Anonymous*

**Algebra 2**

3|x-6| >= -2 Is this correct? x>=16/3 x<=20/3
*Wednesday, July 10, 2013 by Anonymous*

**College Algebra**

Use the position equation given below, where s represents the height of the object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in seconds), as the model ...
*Tuesday, July 9, 2013 by Jack*

**College Algebra**

A rancher has 100 meters of fencing to enclose two adjacent rectangular corrals (see figure). The rancher wants the enclosed area to be 374 square meters. What dimensions should the rancher use to obtain this area? (Round your answers to 2 decimal places. Enter the smaller ...
*Tuesday, July 9, 2013 by Jack*

**Algebra 2.**

1. Negative Absolute Value x+4 ABV<-4 2. 3 ABV x-6 ABV greater than or equal to -2
*Tuesday, July 9, 2013 by Anonymous*

**Algebra 2...**

At 1:00 a.m, a homocide detective found the reading of a corpse's body temperature to be 88 degrees Fahrenheit . One hour later, the body temperature is 83 degrees Fahrenheit. If the body has been in a 74 degrees Fahrenheit room since its death, what is the time of death ...
*Tuesday, July 9, 2013 by Anonymous*

**algebra**

Determine the quadratic function f whose vertex is (3,-2) and passes through(1,6) f(x) = ax^2 + bx + c
*Tuesday, July 9, 2013 by Chris*

**algebra**

Simplify -2(x+3)- 5(x-4)
*Tuesday, July 9, 2013 by Anonymous*

**Algebra 1A**

What are some suggestions for new students starting a math class? Creating a list of three to five important requirements.
*Monday, July 8, 2013 by Kim*

**Math (algebra)**

For every positive integer n, consider all monic polynomials f(x) with integer coefficients, such that for some real number a x(f(x+a)−f(x))=nf(x) Find the largest possible number of such polynomials f(x) for a fixed n<1000.
*Monday, July 8, 2013 by Mark*

**Algebra**

Leila purchased a prepaid phone card for . Long distance calls cost cents a minute using this card. Leila used her card only once to make a long distance call. If the remaining credit on her card is , how many minutes did her call last?
*Monday, July 8, 2013 by Ron*

**(pls help) algebra**

4x+y-32=1, 6x-y-4z=7, 10x+2y-6z=5 pls show me how to solve for x,y,z. Ans:xx=1.5,y=-2,z=1
*Monday, July 8, 2013 by david*

**algebra**

The radius needed to create a sphere with a given volume V can be approximated by the equation r = 0.62(V)1/3. Find the radius of a sphere with a volume of 216 cubic meters. Round the answer to the nearest hundredth.
*Sunday, July 7, 2013 by Anonymous*

**algebra 2**

The capacity of the gas tank in a car is 16.5 gallons. The car uses 10.5 gallons to travel 178.5 miles. After driving 85 more miles, only 1 gallon of gasoline remains in the tank. Which linear equation and graph model the amount of gas g left in the tank after driving m miles?
*Sunday, July 7, 2013 by me*

**college algebra **

The following rational function describes blood concentration of a certain drug taken via IV over time: f(x)=x+1/x Find: a.the horizontal or oblique asymptote(s), if any, b.the vertical asymptote(s),if any, c. describe their possible meanings.
*Sunday, July 7, 2013 by charisse*

**algebra**

A coin is tossed 3 times. Find the probability of obtaining the following: a) heads on the first and last toss, and tails on the other toss b) at least 2 heads c) at most 2 heads
*Sunday, July 7, 2013 by Eliza*

**algebra**

A computer repair shop has estimated the probability that a computer sent to the shop has a bad modem is 1/8, the probability that the computer has a bad CPU is 1/5, and the probability that it has a bad drive is 1/3. If we assume that modems, CPUs, and drives are independent...
*Sunday, July 7, 2013 by Eliza*

**algebra**

How often do you engage in regifting? In a survey of 5544 persons, 143 said very often, 811 said every now and then, 1754 said not very often, 2808 said never, and 28 said not sure. If one of the persons is selected at random, what is the empirical probability of the following...
*Sunday, July 7, 2013 by Anonymous*

**math**

I'm confused on how to do this. algebra M(X,Y) is midpoint of CD with endpoints C(5,9) and D(17,29). Find the values of X and Y. Show the MC = MD.
*Saturday, July 6, 2013 by Ronnie*

**College Algebra**

1 -1 -1 1 2 0 1 -3 -7 0 3 0 -2 2 10 6 2 4 5 9 -3Row1 + Row3 -6Row1 + Row4 How do I work this using a calculator I get so confused and I don't know where to go in order to input info.
*Saturday, July 6, 2013 by Julie*

**Algebra**

A piggy bank with only pennies and nickels has 28 nickels for every 52 pennies. What percent of the coins are nickels? solve this problem using a. bar diagram b. percent equation
*Saturday, July 6, 2013 by Tonya*

**intermediate algebra**

Hello, I am so stuck...I even watched two hours of videos, but it didn't really help me:( I am working on these kinds of problems... 3x-4|+5>32 And...as part of our homework, we have to enter it on the computer in interval notation. So I know that I solve it for both ...
*Saturday, July 6, 2013 by Tina*

**Algebra 2**

Please help... The answer key says that the answer is 0.84...I want to understand how... Bobursley, the way you do it is incorrect... A gas station is giving away free glasses with 5 different designs. What is the probability of collecting all 5 in 15 visits to the gas station?
*Saturday, July 6, 2013 by Anonymous*

**Algebra 2**

A gas station is giving away free glasses with 5 different designs. What is the probability of collecting all 5 in 15 visits to the gas station?
*Saturday, July 6, 2013 by Anonymous*

**Algebra 1A**

I am trying to simplify the factors -7/-6 in the problem -7k^7 m^7/ -6k^8 m^9. What is the correct answer? So far I have -7/-6km^2 my only problem tends to be simplifying -7/-6km^2
*Saturday, July 6, 2013 by Kim*

**algebra 1 please help**

Solve the inequality. Round your answer to the nearest tenth. x2 + 5⋅x - 7 > 5
*Saturday, July 6, 2013 by lisa*

**algebra**

what will be the values for the following? 1. 4^1/2 (4 raised to 1/2) 2. 4^-1/2 (4 raised to -1/2) For number 1, my answer is 2. I hope I am right. For number 2, I dont have an answer yet.
*Saturday, July 6, 2013 by Perrie*

**algebra**

The U.S. Weather Service reports that in a certain northern city it rains 35 days and snows 40 days in the winter. However, it rains and snows on only 10 of those days. Based on this information, what is the probability that it will rain or snow in that city on a particular ...
*Saturday, July 6, 2013 by Anonymous*

**algebra**

The U.S. Weather Service reports that in a certain northern city it rains 35 days and snows 40 days in the winter. However, it rains and snows on only 10 of those days. Based on this information, what is the probability that it will rain or snow in that city on a particular ...
*Saturday, July 6, 2013 by Anonymous*

**algebra**

Two commons sources of nicotine are cigarettes and cigars. Find the probability that a randomly selected adult does not smoke cigarettes.
*Friday, July 5, 2013 by Sandi*

**algebra**

a single ball is drawn from an urn containing 4 balls numbered 1 through 4. find the probability that the ball chosen is as follows: an even numbered ball or an odd numbered ball
*Friday, July 5, 2013 by Sandi*

**Algebra 2**

A gas station is giving away free glasses with 5 different designs. What is the probability of collecting all 5 in 15 visits to the gas station?
*Friday, July 5, 2013 by Anonymous*

**algebra 2**

You are selling tickets for the homecoming football game. Student tickets cost $4 and general admission tickets cost $6. You sell 450 tickets and collect $2340. How many of each type of ticket did you sell? A. Not enough information B. 180 students;270 general C. 270 students;...
*Friday, July 5, 2013 by Sam*

**Algebra 2**

The probability that it will rain on each of the next 5 days is 50%. What is the probability that it will rain for 3 of the next 5 days?
*Friday, July 5, 2013 by Anonymous*

**algebra**

perform the subtraction (8a+2b)/(8a^(2)+2ab-3b^(2))-(a+2b)/(16a^(2)-ab^(2))
*Friday, July 5, 2013 by jamie *

**Algebra 2**

Palmer and teller go to the local ice cream parlor after work that offers 40 flavors of ice cream. Palmer wants a cone with chocolate mousse on top, cherry truffle in the middle, and double Dutch chocolate on the bottom. Teller wants a dish with strawberry, banana, and vanilla...
*Friday, July 5, 2013 by Anonymous*

**Algebra 2...**

I have a pack of cards. I draw one card,then a second card without putting the first card back in the pack. What is the probability that I draw two aces?
*Friday, July 5, 2013 by Anonymous*

**College Algebra**

A pharmaceutical salesperson receives a monthly salary of $2480 plus a commission of 7% of sales. Write a linear equation for the salesperson's monthly wage W in terms of sales S. W(S) =
*Friday, July 5, 2013 by Jack*

**algebra 2**

Consider the exam data below. Algebra score: 20 35 13 29 40 23 Calculus score: 41 69 34 72 86 58 Use your calculator to find the regression line for this data, and graph it on your scatterplot. b. Interpret the slope and intercepts of this line in the context of the problem. c...
*Friday, July 5, 2013 by Rachel*

**Algebra 2...**

Palmer and teller go to the local ice cream parlor after work that offers 40 flavors of ice cream. Palmer wants a cone with chocolate mousse on top, cherry truffle in the middle, and double Dutch chocolate on the bottom. Teller wants a dish with strawberry, banana, and vanilla...
*Friday, July 5, 2013 by Anonymous*

**algebra**

how do you Solve the following system using the elimination method: 2x - 4y = 2 -4x + 6y = -4
*Thursday, July 4, 2013 by terrie*

**Algebra 1A**

Thanks Reiny,that is my only problem trying to figure out the equation. I just cannot figure out for some reason when getting the intersection, I tried several different ways yet my progress is still the same.
*Wednesday, July 3, 2013 by Kim*

**Algebra 1A**

When graphing the inequalities 9x+8y<72 and -7x-4y<=28 what would be the solution set? Also what would be thier intersection?
*Wednesday, July 3, 2013 by Kim*

**algebra**

Solve the following system using the substitution method: 6x - 2y = -4 y = 3x + 2
*Wednesday, July 3, 2013 by hunter*

**algebra**

Solve the following system using the substitution method: 3x + y = -3 y = 2x + 7
*Wednesday, July 3, 2013 by hunter*

**Algebra 2**

Using the integers 2,3,4,5, How many 3-digit odd numbers less than 300 can be formed if no repetition of digits is allowed? Please explain and show work.
*Wednesday, July 3, 2013 by Anonymous*

**algebra**

How do you factor the difference of two squares? How do you factor the perfect square trinomial? How do you factor the sum and difference of two cubes? Which of these three makes the most sense to you? Explain why.
*Tuesday, July 2, 2013 by Anonymous*

**algebra**

An airplane climbs at a rate of 66.8 ft per min. It descends at twice the rate it climbs. Assuming it descends at a constant rate, how many ft. Will the airplane descend in 30 min.?
*Tuesday, July 2, 2013 by Brandi*

**Algebra**

Using the cumulative and/or associative laws to write two equivalent expressions of x(3y)
*Tuesday, July 2, 2013 by Vanessa*

**intermediate algebra**

i need to write this algabraically and graph: a runner leaves his house and runs for 30 minutes at 8mph, he rests for 5 minutes and then continues to run home at 5mph.
*Tuesday, July 2, 2013 by kimberlee*

**Algebra 2**

when expanding (x+y)^8, either an x or a y from each of the eight factors is used in the product. That means that x^3y^5 is going to occur several times and the number of times it occurs becomes the coefficient for x^3y^5. Based on this, what is the coefficient for x^3y^5?
*Monday, July 1, 2013 by Anonymous*

**Algebra**

An executive flew in the corporate jet to a meeting in a city 1700 kilometers away. After traveling the same amount of time on the return flight, the pilot mentioned that they still had 300 kilometers to go. The air speed of the plane was 600 kilometers per hour. How fast was ...
*Monday, July 1, 2013 by Jack*

**Algebra 1b**

v = pi r squared h for h
*Monday, July 1, 2013 by Tiarra*

**Algebra 2**

Using the integers 2,3,4,5, How many 3-digit odd numbers less than 300 can be formed if no repetition of digits is allowed? Please explain and show work.
*Monday, July 1, 2013 by Anonymous*

**algebra 1 NEED NOW!!! PLEASE HELPPP**

The height of a soccer ball that is kicked from the ground can be approximated by the function: y = -12⋅x^2 + 48⋅x where y is the height of the soccer ball in feet x seconds after it is kicked. Find the time it takes the soccer ball to reach its maximum height: ...
*Monday, July 1, 2013 by lisa*

**algebra 1 NEED NOW!!! PLEASE HELPPP**

The height of a soccer ball that is kicked from the ground can be approximated by the function: y = -12⋅x2 + 48⋅x where y is the height of the soccer ball in feet x seconds after it is kicked. Find the time it takes the soccer ball to reach its maximum height: ...
*Monday, July 1, 2013 by lisa*

**algebra 1 NEED NOW!!! PLEASE HELPPP**

The height of a curved support beam can be modeled by F(x)=- x^2/288 +18 Find the height and width of the beam. Height = units Width = units
*Monday, July 1, 2013 by lisa*

**algebra 1 NEED NOW!!! PLEASE HELPPP**

A rectangular picture measuring 3 in. by 7 in. is surrounded by a frame with uniform width x. Write a quadratic function in standard form to show the combined area of the picture and frame.
*Monday, July 1, 2013 by lisa*

**ALGEBRA**

A satalites escape velocity is 6.5 mi/sec, the radius of the earth is 3960 miles and the earth's gravitational constant(g) is 32.2 ft/sec^2 How far is the satelite from the surface of the earth?
*Monday, July 1, 2013 by ASHLEY*

**college algebra: probability and statistics**

You roll a single die once. What is the probability you will roll an odd number or an even number?
*Sunday, June 30, 2013 by Angelina*

**algebra 1**

simplify (m^2 n^-3)^2 (-m^-3 n^3)^3
*Sunday, June 30, 2013 by lisa*