Friday

May 6, 2016
**Algebra**

To those who know how to use a ti84 plus calculator. Can anyone show me the steps on how to perform rational expressions and equations?
*Monday, April 14, 2014 by Christopher*

**Algebra help PLEASE? **

Create two different situations: one in which you use combinations and one in which you use permutations. Include specific details and an explanation about what makes each situation either a combination or permutation.
*Monday, April 14, 2014 by Aniston*

**Algebra**

The accompanying bar graph shows the milk fat percentages in three dairy products. A=whole milk @4%. B= milk for cream cheese @8%, and C= cream @30%. How many pounds each of whole milk and cream should be mixed to form 200 lb of milk for cream cheese? How many pounds of whole ...
*Sunday, April 13, 2014 by Pam*

**Algebra**

$6300 is invested, part of it at 11% and part of it at 8%. For a certain year, the total yield is $597.00. How much was invested at each rate?
*Sunday, April 13, 2014 by Pam*

**college algebra**

A rubber ball is dropped from the top of a hole.Exactly 3.0 seconds later, the sound of the rubber ball hitting bottom is heard.How deep is the hole? HInt:- The distance that dropped object falls in t sec is represented by the formula s = 16t^2.The speed of sound is 1100 ft/sec
*Sunday, April 13, 2014 by Davone *

**college algebra**

a rocket is fired upward from some initial distance above the ground. Its height in feet, h,above the ground, t seconds after it is fired, is given by h=-16t^2+32t+560.
*Sunday, April 13, 2014 by Davone *

**algebra**

Ln(x+3)- Ln(x-5)=Ln7
*Sunday, April 13, 2014 by Kim*

**algebra**

In 1990, the population of Africa was 643 million and by 2000 it had grown to 813 million. a.) Use the exponential growth model A=A0 e^kt, in which t is the number of years after 1990, to find the exponential growth function that models the data. b.) By which year will Africa ...
*Sunday, April 13, 2014 by Kim*

**algebra 1 question pls help!!!**

1. Find the mean, median, and mode of the data set: 15, 16, 21, 23, 25, 25, 25, 39 a.mean = 23.6, median = 25, mode = 24 b.mean = 24, median = 23.6, mode = 25 c.mean = 24.6, median = 24, mode = 25 d.mean = 23.6, median = 24, mode = 25 This is what i got: Mean - 23.4 Median - ...
*Sunday, April 13, 2014 by TTR+S<3*

**Algebra**

One canned juice drink is 20% orange juice! another is 5% orange juice. How many liters of each should be mixed together in order to get 15L that is 16% orange juice?
*Sunday, April 13, 2014 by Pam*

**linear algebra**

In a dilation with a scale factor of 3/4 , the image is __________ the preimage
*Sunday, April 13, 2014 by david mendez*

**Algebra**

Hockey teams reciever 2points when they win and 1 point when they tie. One season, a team won a championship with 64 points. They won 11 more games than they tied. How many wins and how many ties did the team have ?
*Sunday, April 13, 2014 by George*

**Algebra**

Bobo bought a 1 ft squared block of cheese. He needs to cut it into 3 in. cubes. The block is yellow outside but green on the inside. How many 3 in. cubes does it have? How many of the cubes have no yellow face, one yellow face, 2 yellow face, etc. Please help!!!
*Saturday, April 12, 2014 by Sarah*

**Algebra**

x over 2x-5 - 5 over 6x-15
*Saturday, April 12, 2014 by Mark*

**Algebra**

If Sam takes 6 hours to paint a house, and Pat takes 12 hours to paint the same house; how long with it take the 2 men to paint the same house together? What is the correct formulary?
*Saturday, April 12, 2014 by Angie*

**Algebra**

F(t)= 30000/1+20e^-1.5t Describes the number of people, f(t), who have become ill with influenza t weeks after the initial outbreak in a town with 30,000 inhabitants. a.) How many people became ill with flu when the epidemic began? b.) How many people were ill by the end of ...
*Saturday, April 12, 2014 by Seth*

**Algebra**

Medical research indicates that the risk of having a car accident increases exponentially as the concentration of alcohol in the blood increases. The risk is modeled by R=6e^12.77x Where x is the blood alcohol concentration and R, given as a percent, is the risk of having a ...
*Saturday, April 12, 2014 by Seth*

**algebra**

Medical research indicates that the risk of having a car accident increases exponentially as the concentration of alcohol in the blood increases. The risk is modeled by R=6e^12.77x Where x is the blood alcohol concentration and R, given as a percent, is the risk of having a ...
*Saturday, April 12, 2014 by Kira*

**algebra**

How long, to the nearest day, will it take $25,000 to grow to $500000 at 9% annual interest compounded monthly?
*Saturday, April 12, 2014 by Kira*

**algebra**

F(t)= 30000 1+20e^-1.5t Describes the number of people, f(t), who have become ill with influenza t weeks after the initial outbreak in a town with 30,000 inhabitants. a. How many people became ill with flu when the epidemic began? b. How many people were ill by the end of the...
*Saturday, April 12, 2014 by Kristina*

**algebra**

Use the fact that after 5715 years a given amount of carbon 14 will have decayed to half the original amount to find the exponential decay model for carbon 14. In 1947, earthenware jars containing what was known as the Dead Sea scrolls were found by an Arab Bedouin herdsman. ...
*Saturday, April 12, 2014 by Kristina*

**Algebra**

log base 2 x + log base 2 (x-7)=3 solving steps?
*Saturday, April 12, 2014 by Peggy*

**Algebra**

solve: Ln(x+2)-Ln(4x+3)=Ln(1/x) I think this is a Log of Quotient
*Friday, April 11, 2014 by Toni*

**algebra**

I am to solve ln(x+3)-ln(x-5)=ln7
*Friday, April 11, 2014 by joanie*

**Algebra Word Problem**

A number of men subscribed a certain amount to make up a deficit of $100 but 5 men failed to pay and thus increased the share of the others by $1 each. Find the amount that each man paid.
*Friday, April 11, 2014 by Summer*

**Algebra**

The time required for a trip 108 miles downstream on a steamer is 3 hours less than the time required for the upstream trip. A boat whose rate is 6 miles per hour less than that of the steamer required 9 hours more for the upstream trip than for the downstream trip. Find the ...
*Friday, April 11, 2014 by Summer*

**Algebra - functions**

Given the function: f(x) = 5/(x-1)^2 Find the Horizontal Asymptote: Vertical Asymptote: Hole(s): X intercept: Y intercept:
*Friday, April 11, 2014 by Kendrick*

**Algebra**

How do you simplify this? -16^(1/4) Someone showed me like this: (-1)(16^(1/4))=(-1)(2)=-2 But others said ... -16^(1/2)= 4i 4i^(1/2) or the sqrt of 4i=sqrt of 4 times sqrt of i Final answer: 2 times sqrt of i What is the correct answer and what exactly do you do??
*Friday, April 11, 2014 by Anonymous*

**algebra**

4(x-6)-7x
*Friday, April 11, 2014 by Anonymous*

**algebra**

{distinct letters in the word food}
*Friday, April 11, 2014 by charles*

**algebra**

I need some help with ln 's I am trying to solve : ln(x+3)- ln(x-5)= ln7 do I: ln (x+3)/(x-5)= ln 7 ?
*Friday, April 11, 2014 by zach*

**algebra**

Solve the following: 3ln(4x)=17
*Friday, April 11, 2014 by Seth*

**algebra**

solve: log base of 7 (3x+2)=5
*Friday, April 11, 2014 by Seth*

**algebra Word problem**

what interest rate is required for an investment subject to continuous compounding to triple in 15 years? A= Pe^rt ?
*Friday, April 11, 2014 by Kira*

**algebra**

solve the following: 300e^.06x = 1500
*Friday, April 11, 2014 by Tim*

**algebra**

Evaluate: log base 5 379
*Friday, April 11, 2014 by Tim*

**algebra**

write in expanded logarithmic form: ln (x y^3 z^7)
*Friday, April 11, 2014 by james*

**algebra**

Solve: log x + log(x+15)=2
*Friday, April 11, 2014 by james*

**algebra**

Solve: 7 ^(x+3) =519
*Friday, April 11, 2014 by james*

**algebra**

What is the length of the line segment shown below? If necessary, round your answer to the nearest hundredth. (3,0) and (0,-6)
*Friday, April 11, 2014 by need help apex!!!!!!!!*

**algebra**

Estimate the real zeros of the function to the nearest tenth f(x) = 2x^2 − 3x − 7
*Friday, April 11, 2014 by K.M*

**ALGEBRA**

y = −x^2 + 8 Axis of symmetry?
*Friday, April 11, 2014 by KMILL*

**College Algebra**

An event in the Summer Olympics is 10-meter springboard diving. In this event, the height s, in meters, of a diver above the water t seconds after jumping is given by s(t) = –4.9t2 + 7.1t + 10. What is the maximum height that the diver will be above the water? Round to ...
*Friday, April 11, 2014 by Kelly*

**pre algebra**

Check whether (-4, -12) is a solution of the system of equations. y = 6x + 12 2x - y = 4 When the graphs of two equations are parallel, there are infinitely many solutions. y = x + 4 y = 3x solution: ( , )
*Friday, April 11, 2014 by berta*

**algebra**

What are the solutions for x when y is equal to 0 in the following quadratic function? y=x^2+10x-24 A. x = –4 or x = –6 B. x = –6 or x = 4 C. x = –2 or x = 12 D. x = –12 or x = 2 E. no real solutions
*Thursday, April 10, 2014 by FORREST*

**Math/pre algebra **

What are the answers to why is a hill like a lazy dog?
*Thursday, April 10, 2014 by Girl*

**algebra**

Y= -3/8x + 10
*Thursday, April 10, 2014 by Anonymous*

**Algebra II**

Help me with this, please... A ball is dropped vertically from a height of 80 meters. After each bounce, the ball reaches a maximum height equal to 60 percent of maximum height of the previous bounce. a. Write the first three terms of the sequence. Explain how you know what ...
*Thursday, April 10, 2014 by Me and I*

**Algebra**

a rowing team rowed an average of 17.2 miles per hour with he current and 10.4 miles per hour against the current. Determine the teams rowing speed in still water and speed of the current
*Thursday, April 10, 2014 by Keta*

**Algebra**

written wrong the first time... [(x^2 -16) / (2x^2-9x + 4)] / [(2x^2 + 14x + 24) / (4x + 4)] Is the answer? 1 / (3+1)
*Wednesday, April 9, 2014 by Sandra*

**Algebra**

[(x^2 -16) / (2x^2-9x + 4)] / [(2x^2 + 14x + 24) / (4x + 4)] is the answer 1 / x + 3
*Wednesday, April 9, 2014 by Sandra*

**Algebra**

You have to make a square-bottomed, unlidded box with a height of three inches and a volume of approximately 42 cubic inches. You will be taking a piece of cardboard, cutting three-inch squares from each corner, scoring between the corners, and folding up the edges. What ...
*Wednesday, April 9, 2014 by Willis*

**MATH Algebra **

48x + 32y/32 I have 48x/32 & 32y/32 = 3x/2 + 2y/2 = 3x/2 + y Am I working this correctly? Also 25a + 5b + 15c/10 would I be correct to divide by 5?
*Wednesday, April 9, 2014 by Candi *

**Logarithmic Algebra**

let log2=a, log3=b, and log5=c. express the indicated logarithm in terms of a, b, and c. log6/25 log 100
*Wednesday, April 9, 2014 by Jen*

**Algebra**

______ √(-70)2
*Wednesday, April 9, 2014 by Boo*

**Algebra**

Raising a Product or a Quotient to a Power. (xy4)9
*Wednesday, April 9, 2014 by Boo*

**Algebra**

4 This is hard for me to understand how to work them... What is the simplified form of the product [(x^2 + 8x + 15)/(x-4)] * [(x^2 – 16) / 2x + 6)]
*Wednesday, April 9, 2014 by Sandra*

**algebra**

Taylor's nickels and dimes total $7.60. If the nickels were replaced by pennies then she would have $6.80. How many of each coin does she have?
*Wednesday, April 9, 2014 by georgia*

**Algebra**

What is the quotient? [(x^2 -16) / (2x^2-9x + 4)] / [(2x^2 + 14x + 24) / (4x + 4)]
*Wednesday, April 9, 2014 by Sandra*

**Algebra**

I may not be writing this right... What is the simpliest form for the product? [(x + 1) / (x^2 – 25)] * [(x +5) / (x^2 +8x +7)]
*Wednesday, April 9, 2014 by Sandra*

**math **

Shania is having trouble understanding her algebra assignment. To help her understand, she asks Mark why is x^2*y^3 not equal to (x,y)^5 Which of the following responses would be best for Mark to give? A. “You should multiply the exponents rather than add them. The ...
*Wednesday, April 9, 2014 by Anonymous*

**Algebra 9**

What is the quotient [(x^2) / (2x^2-9x + 4)] / [(2x^2 + 14x + 24) / (4x + 4)]
*Wednesday, April 9, 2014 by Sandra*

**Algebra 2**

Simplify and enter your answer in scientific notation: 240,000,000*0.000024/0.005
*Wednesday, April 9, 2014 by Darien*

**algebra 2**

if someone offers to pay you 1 penny on the first day, 2 pennies on the second day, 4 pennies on the third day, 8 pennies on the fourth day, 16 pennies on the fifth day ad so on. What is the first day on which your pay would be at least $100.
*Wednesday, April 9, 2014 by Kathy*

**algebra 2/trig**

Tina can paint a room in 8 hours, but when she and her friend Emily work together, they can complete the job in 3 hours. How long would it take Emily to paint the room alone?
*Wednesday, April 9, 2014 by Danielle*

**Algebra**

Area = 15x^3 + 25x^2 what is the length and width of the rectangle?
*Wednesday, April 9, 2014 by Kathy*

**algebra 2**

Lizette drops a ball from a height of 256 feet. The peak height after each bounce is 75% the previous height. How much vertical distance does the ball travel from the time she drops it until it touches the ground after its fourth bounce
*Wednesday, April 9, 2014 by Kathy*

**algebra 2**

Mr Brown salary is $32,000 and increases $300 each year. Write a sequence showing the salary for the first 5 years. When will he make over $34,700.
*Wednesday, April 9, 2014 by Kathy*

**algebra 2**

Reiny I do not understand where you got the numbers from in the sigma question on Sunday . Where did you get the number 27 from and where did you get -10. What is the formula you used.
*Wednesday, April 9, 2014 by Kathy*

**College Algebra**

In china, the number of sport utility vehicle sold in 2003 was predicted to grow by 30% annually for the next 5 years. what is the doubling time?
*Wednesday, April 9, 2014 by John*

**Algebra**

Area = 15x^3 + 25x^2 what is the length and width of the rectangle?
*Tuesday, April 8, 2014 by Kathy*

**College algebra**

One day a store sold 31 sweatshirts. White ones cost $11.95 and yellow ones cost $12.50. In all, $379.80 worth of sweatshirts were sold. How many of each color were sold?
*Tuesday, April 8, 2014 by Norma*

**basic algebra**

2x + 4X = 12 X = ? Thank you.
*Tuesday, April 8, 2014 by Neil Smith*

**algebra**

How do you add π -3/2?
*Tuesday, April 8, 2014 by Steve*

**algebra**

can someone show line by line step by step factor x^2-15
*Tuesday, April 8, 2014 by Steve*

**Precalculus /Algebra**

Hi I know is is probably basic but can anyone assist with the following : Find all real Roots, expressing as whole # and # under radical sign, not as fraction. and factor completely f(x)= X^3-2x^2-15x+30 I got roots at 2 (x-2) and +/- √5 If someone solves and gets ...
*Tuesday, April 8, 2014 by Steve*

**algebra 1**

(n+9)^2 n^2+81 (r-11)^2 r^2-22 (z+13)(z-13) Z^2
*Tuesday, April 8, 2014 by Reina B.*

**Algebra**

What are the coordinates of the x-intercepts of the graph of y = 2x2 + 6x – 20? • (–5, 0), (2, 0) • (5, 0), (–2, 0) • (–4, 0), (10, 0) • (4, 0), (–10, 0)
*Tuesday, April 8, 2014 by Sandra*

**Algebra **

Maria's average speed for a 6 hour trip was 40kph. For the first 4 hours, she drove at an average rate of 50kph. What was her average speed for the last 2 hours?
*Tuesday, April 8, 2014 by Jane*

**college algebra**

The height of a projectile fired upward is given by the formula s = v0t – 16t2, where s is the height, v0 is the initial velocity and t is the time. Find the times at which a projectile with an initial velocity of 128 ft/s will be 144 ft above the ground. Round to the ...
*Tuesday, April 8, 2014 by Kelly*

**Math**

In how many words can you form the word ALGEBRA?
*Tuesday, April 8, 2014 by Qi*

**Pre-Algebra**

Jenny buys an 18'sandwich. Demi gets 1/2 the amount the Jenny gets. Joel gets 3/4 the amount Jenny gets. How much does Jenny get? Please explain.
*Tuesday, April 8, 2014 by Nesey*

**Algebra - Help!**

Given the function: f(x)=(x^2+6x+5)/(x^2+3x−10) Find the Domain: Vertical asymptote(s): Hole(s): Horizontal asymptote (if exists):
*Monday, April 7, 2014 by Jared*

**Algebra 2**

How do I find the equation of an ellipse with: Vertices: (-7,10), (-7,-10) Foci: (-7, square root of 19) (-7, - square root of 19) I think the center is (-7,0) and a^2 is 49 I just don't know how to get c^2 so I cant get b^2
*Monday, April 7, 2014 by Jane*

**MATH - Algebra **

Help with problem already posted. Thanks
*Monday, April 7, 2014 by Candi *

**algebra**

The cost of renting a car is $18 per day plus $.20 per mile traveled. Margie rented a car and paid $44 at the end of the day.How many miles did she traveled?
*Monday, April 7, 2014 by naynay*

**Algebra**

List all asymptotes (both horizontal and vertical) of the rational function: f(x)=(10x−3)/(8−7x)
*Monday, April 7, 2014 by Ivan*

**MATH - Algebra**

11x^2 + 22x/11 Am I on the right track? 11(x^2 + 11x)/11 = x^2 + X
*Monday, April 7, 2014 by Candi *

**Algebra II -Please help**

Assign each letter and a blank space to a number as shown by the alphabet table. 0=_ 1=A 2=B 3=C 4=D 5=E 6=F 7=G 8=H 9=I 10=J 11=K 12=L 13=M 14=N 15=O 16=P 17=Q 18=R 19=S 20=T 21=U 22=V 23=W 24=X 25=Y 26=Z use matrix [1 -2] -3 7 and encode the phrase "One Question to go&...
*Monday, April 7, 2014 by Cassie*

**Algebra**

In 1999 there were 200,000 registered dogs that were Labrador retrievers and dachshunds. There were 3 times as many Labrador retrievers as dachshunds. Find the number of Labrador retrievers and dachshunds
*Monday, April 7, 2014 by Vicki*

**college algebra**

If a 25 lb weight is attatched to a spring how far will it stretch? I got an answer for a 15 lb weight with 8 inches to be 15/8 but when I plug in 15/8 into my new equation it doesn't come up with the right answer.
*Monday, April 7, 2014 by candace*

**Algebra**

What is the simplified form of (2x -25)/(2x -3x -10)?
*Monday, April 7, 2014 by Sandra*

**algebra 2**

sigma upper limit 28 algebraic expression (8i-13) lower limit 1 index=i
*Sunday, April 6, 2014 by kathy*

**algebra 2**

what is the sum of the first 11 terms of the arithmetic series in which asub one = -12 and d=5
*Sunday, April 6, 2014 by kathy*

**algebra 2**

What is the sum of the first 60 positive integers?
*Sunday, April 6, 2014 by kathy*

**Algebra**

What is the simplified form of 2x + 6 ? 4x - 8 (there should be a line between them.)
*Sunday, April 6, 2014 by Sandra*

**advanced algebra**

Jennifer figures that she uses 2 pens per month. She started the year with 10 pens. How do I write the equation that represents the number of pens, y, she will have after x months.
*Sunday, April 6, 2014 by Colb*

**Algebra**

Maria and Charlie can deliver 50 papers in 2 hours. How long would it take them to deliver 35 papers? formula please
*Saturday, April 5, 2014 by jorge*

**algebra**

if 25% of A is equal to 48, then what is 2/3 of A?
*Saturday, April 5, 2014 by Anime*

**Algebra**

Please help. f(x) -6x-1 and g(x)=4x^2 Select the solution for(f+g)(x). Thank you.
*Saturday, April 5, 2014 by Jerry*