Monday
April 27, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

math help
Simplify this expression fully 6^x 2-3^x.2^x 1/6^x-1
Tuesday, April 7, 2015 at 1:07pm

Math
Determine the coefficient of w x^3 y^2 z^2 in (2w−x+y−2z)^8. Thanks.
Tuesday, April 7, 2015 at 12:43pm

math
charlie says that y=2x squared is not a function because the same y-value sometimes corresponds to more than one x-value. Is charlie correct
Tuesday, April 7, 2015 at 12:39pm

Math
An airplane climbs 100 feet during the first second of takeoff. In each succeeding second it climbs 100 feet more than during the previous second. How many seconds does it take for the plane to reach an altitude of 12000 feet?
Tuesday, April 7, 2015 at 12:21pm

math
Juanita Finn deposits $12,000 into an account at Valley Bank that pays 8% interest compounded quarterly. At the end of 5 years, how much will Juanita have in her account? Round to the nearest cent.
Tuesday, April 7, 2015 at 12:18pm

Business math
At the beginning of each year, Al rose invested $1,200 semiannually at 12 percent for 8 years. The cash value of the annuity due at the end of the eighth year is?
Tuesday, April 7, 2015 at 11:28am

math
a man uses 1/3 of his land for growing mangoes,!/4 for bananas ,3/8 for apples ,and the remaining 18 hectares for oranges , so find how much land does the man have ?and find how much land does he use for growing apples ?
Tuesday, April 7, 2015 at 11:03am

Math
Jamal found 1/3 gallon of milk in the kitchen. He poured it into 5 equal size cups. What fraction of a gallon of milk is in each cup? 1/3 of 5 3 x 5 = 15 1/15
Tuesday, April 7, 2015 at 10:42am

math
During the summer holidays,your brother earns extra money mowing lawns.He mows 6 lawns an hour and has 21 lawns to mow.How long will it take him?
Tuesday, April 7, 2015 at 9:09am

Math
James is training for a marathon. Every week, he increases the distance he runs by 15%. If James is running 8.5 miles this week, how far will he be running 2 weeks from now? I did 30/100=x/8.5 . I thought that if I did 30 (for 2 weeks) instead of 15 (1 week) I could get a ...
Tuesday, April 7, 2015 at 7:14am

math
what is he interior points and doundary points of empty set?
Tuesday, April 7, 2015 at 6:22am

math
If it says use the method of substitution to solve the system of linear equations 3a=6-b 3a=4-b How do i find the solution
Tuesday, April 7, 2015 at 3:48am

math
In a contest , 2 participants were asked about their age . To test the strength of their math , they are asked to add their ages together. One answer 44 and the other gives 1280. The first obtained from the parse age with one another , while the second can multiply both their ...
Tuesday, April 7, 2015 at 1:37am

math
Mr. Kardi have 5 trucks of sand . The charge then A and B are 2.5 ton , trucks C and D 3 ton , 1 ton truck E load over charge - average. How many tons of cargo trucks E ?
Tuesday, April 7, 2015 at 1:35am

math
A television is sold at a discount of 13 % for IDR. 870,000. What is the actual price of the television before at a discount ? COnfuse..
Tuesday, April 7, 2015 at 1:33am

math
A man has been through 24 phases traveling in a motorcycle rally and finish as much as 37.7 % of the way to be traversed . How many phases that must be gone through to complete the 58 % ?
Tuesday, April 7, 2015 at 1:32am

math
In a car repair shop there are 50 cars to be repaired . It is estimated that 23 of that cars need new brakes , and 34 of that cars need to repair the exhaust system . a. How many cars are in need of repair at least two? b . What most cars that are not in need of repair both?
Tuesday, April 7, 2015 at 1:17am

math
The gardener went to the market to buy 100 animals for a total of IDR 1.000.000. If the price of cow IDR. 50,000 /cow and goat IDR 10,000 /goat , rabbit IDR 5000 /rabbit , how many of each kind of animal which can he buy ? I wrote : Cow = X = 50.000 Goat = Y = 10.000 Rabbit = ...
Tuesday, April 7, 2015 at 1:14am

math
A worker uses 4 gray tiles for every 5 blue tiles that he uses.(a) If he uses 60 gray tiles, how many blue tiles does he use? (b) If he uses 540 tiles altogether, how many gray tiles does he use?
Tuesday, April 7, 2015 at 12:47am

math
1. When 100 students took a test, the average score was 77,1. Two more students took the test, the sum of the score was 125. What is the new average ? 2. The Basket Ball Team and Baseball team have a total of 24 players. There are 12 basket players and 18 baseball players. How...
Tuesday, April 7, 2015 at 12:17am

Math
Transform the graph of f(x)=3^x to sketch g(x)=3^−(x+1) −2. Show table of values and each transformation clearly to get full marks. (15,marks)?
Monday, April 6, 2015 at 11:26pm

Math
carla has several bags of candy that have different weights. Each x represents one bag. Carla wants the total weight of the bags to be four pounds. If she can only pick one more bag, which one should she pick
Monday, April 6, 2015 at 10:18pm

math please help
Determine whether it is possible to draw a triangle given each set of information. Sketch all possible triangles where appropriate. Calculate then label all side lengths to the nearest tenth of a centimetre and all angles to the nearest degree. A) b= 3.0 cm, c=5.5 cm and angle...
Monday, April 6, 2015 at 9:44pm

Math
Explain in a variety of ways how you can distinguish the exponential function f(x)=2^x from the quadratic function f(x)=x^2 and linear function f(x)=2x. (Hint: Compare the rate of change using finite differences in table of values; identify a constant ratio in the table of ...
Monday, April 6, 2015 at 9:38pm

Math
Determine whether it is possible to draw a triangle given each set of information. Sketch all possible triangles where appropriate. Calculate then label all side lengths to the nearest tenth of a centimetre and all angles to the nearest degree. A) b= 3.0 cm, c=5.5 cm and angle...
Monday, April 6, 2015 at 8:48pm

math
Determine whether it is possible to draw a triangle given each set of information. Sketch all possible triangles where appropriate. Calculate then label all side lengths to the nearest tenth of a centimetre and all angles to the nearest degree. A) b= 3.0 cm, c=5.5 cm and angle...
Monday, April 6, 2015 at 8:04pm

Math
Which stem-and-leaf plot represents the data set below? 56,65,67,72,85,88,89,96,97,104,113 A. 5|6 6|5 7 7|2 8|5 8 9 9|6 7 1|04 1|13 Key:8|9 means 89 B. 5|6 6|5 7 7|2 8|5 8 9 9|6 7 1|0 4 1|1 3 C. 5|6 6|5 6 7 7|2 8|5 9 9|6 7 8 10|4 11|3 D. 5|6 6|5 7 7|2 8|5 8 9 9|6 7 10|4 11|3 ...
Monday, April 6, 2015 at 7:57pm

Math
Ms. Allison drew a box-and-whisker plot to represent her students scores on a midterm test. These are the numbers on the box-and-whisker plot. Lowest value=44 Lower quartile=47 Median=52 Upper quartile=81 Highest value=96 Jason received 81 on the test. How does Jason's ...
Monday, April 6, 2015 at 7:40pm

math
Estimate 99 9/19 + 1/5, Use benchmarks to estimate the total
Monday, April 6, 2015 at 7:15pm

Math
I have to find the median, the lower quartile, the upper quartile, minimum number, and maximum number of this data set I just want to make sure I am right. 73,73,78,78,81,87,89,92,93,95 My answers Median=84 Lower quartile=78 Upper quartile=92 Minimum number=73 Maximum number=...
Monday, April 6, 2015 at 7:11pm

Math
On Tuesday, Leslie spent 47 minutes on math homework, 39 minutes on science homework, 52 minutes on English homework, and 44 minutes on history homework. How much time did Leslie spend doing her homework on Tuesday?
Monday, April 6, 2015 at 7:09pm

Math
Your teacher made the comment that more than 100, 00 ping pong balls would fit in the school gym. develop a calculation method to see if she is right. after taking some measurements, propose the amount the gym would hold. i din't really understand how to solve the scenario...
Monday, April 6, 2015 at 6:15pm

math
A nickel is 1/16 of an inch thick.Carrie has 7 nickels,what is the thickness of her 7 nickels?
Monday, April 6, 2015 at 6:14pm

Math
Bob has designed a rectangular storage unit to hold large factory equipment. His scale model has dimensions 1 m by 2 m by 4 m. By what amount should he increase each dimension to produce an actual storage unit that is 9 times the volume of his scale model?
Monday, April 6, 2015 at 6:02pm

math
The school raised $1518.75 by charging an adult $3.75 and a student $2.50. The total attendance was 520. express each equation in slope-intercept form and graph each line ?
Monday, April 6, 2015 at 5:51pm

Finite Math
P(R or S)=.64 P(R)=.38 P(S)=.52 Probability Union Rule P(R and S)=P(R)+P(S)-P(R and S) .64=.38+.52-P(R and S) .54=.9-P(R and S) At this point, how do I deal with the -P(R and S)? I know the final answer is .26, but how do I get there?
Monday, April 6, 2015 at 5:50pm

Math
A back-to-back stem-and-leaf plot showing the points scored be each player on two different basketball teams is shown below. Team 1 | | Team 2 6 1| 0| 3 7 8 4 2| 1|4 6 8 9 9 6 3| 2|5 7 Key: 4|0|2 means 4 points for Team 1 2points for team 2 What is the median number of points ...
Monday, April 6, 2015 at 5:18pm

math
How do I find three ordered pair solutions for x-y=4
Monday, April 6, 2015 at 5:09pm

Math
James is training for a marathon. Every week, he increases the distance he runs by 15%. If James is running 8.5 miles this week, how far will he be running 2 weeks from now? I did 30/100=x/8.5 . I thought that if I did 30 (for 2 weeks) instead of 15 (1 week) I could get a ...
Monday, April 6, 2015 at 5:02pm

Math
Chocolate chip: Adults=5 Children=10 Peanut butter: Adults=8 Children=6 Oatmeal: Adults=7 Children=4 What percentage of the children chose penut butter? A. 70% B. 25% C. 30% D. 45% Is the answer B? Thank you
Monday, April 6, 2015 at 4:50pm

Math
Lisa takes a loan of $10,500 at a 9% simple interest rate for 7 years. a. How much interest will she pay after 3 years? b. how much interest will she pay in total for the loan? a. $2,835.00; $6,615.00 b. $8,280.00; $9,720.00 c. $13,598.00; $19,194.00*** d. $28,350.00; $66,150.00
Monday, April 6, 2015 at 4:44pm

Math
A survey of 594 studnets about the sports program at a school finds the following results: 495 students like the program 99 students think the program is inadequate. If a circle graph were made from the data, what would the measure of the central angle be for the group that ...
Monday, April 6, 2015 at 4:17pm

math
How do I write complex and real roots? For example, if the real roots are 1, -1 and the complex roots are -i, i how do I write those down? It'd be x:1, x:-1, x:-i, x:i, correct? Or am I wrong?
Monday, April 6, 2015 at 4:15pm

Math
Find the next three terms sequence. -2,-12,-72,-432,.... A. -1,728, -6,912, -27,648 B. -1,728, -10,368, -62,208*** C. -2,592, -10,368, -41,472 D. -2,592, -15,522, -93,312 ASAP is good, but if not no prob!
Monday, April 6, 2015 at 4:12pm

Math
Carol has a collection of 100 stamps. The graph below shows the percentage of stamps she has from each country. France=24% Italy=25% England=22% Norway=29% How many of Carol's sta,ps are from Noraw than from France? A. 5 stamps B. 24 stamps C. 29 stamps D. 53 stamps Is the...
Monday, April 6, 2015 at 3:49pm

Math Check
A bank offers two interest account plans. Plan A gives you 6% interest compounded annually. Plan B gives you 13% annual simple interest. You plan to invest 2,000 for the next 4 years. Which account earns you the most interest (in dollars) after 4 years? How much will you have ...
Monday, April 6, 2015 at 3:28pm

math
write teh equation of the line: a line that goes through the point (-1,5) and has a slope of 2/3
Monday, April 6, 2015 at 3:20pm

Math Help Please!
A bank offers two interest account plans. Plan A gives you 6% interest compounded annually. Plan B gives you 13% annual simple interest. You plan to invest 2,000 for the next 4 years. Which account earns you the most interest (in dollars) after 4 years? How much will you have ...
Monday, April 6, 2015 at 2:55pm

math
An equation can be used to find the height of a child. Equation is h=2c. The child is 36 inches at 18 months. (12in=1ft) How tall will the child be when he is 5 years of age?
Monday, April 6, 2015 at 2:43pm

Math: Geometry
Joe is making a toy from a rectangular block of wood. He drills two holes, each with diameter 1.4 cm, through the block. The block of wood has length 15 cm, width 8 cm, and height 5 cm. a)What is the volume of the block before the holes are drilled? b)What is total volume ...
Monday, April 6, 2015 at 2:40pm

Math
An equation can be used to find the height of a child. Equation is h=2c. The child is 36 inches at 18 months. (12in=1ft) How tall will the child be when he is 5 years old?
Monday, April 6, 2015 at 2:34pm

math
On Abby Ellen's graduation from law school, Abby's uncle, Bull Brady, promised her a gift of $24,000 or $2,400 every quarter for the next 4 years after graduating from law school. If the money could be invested at 6% compounded quarterly, which offer should Abby choose?
Monday, April 6, 2015 at 11:27am

math
There are 9 red gum balls, 5 green gum balls, 8 yellow gum balls, and 8 blue gum balls in a machine. Find P(green, then yellow)
Monday, April 6, 2015 at 11:17am

Math
1)How many real number solutions does the equation have? -8x^2-8x-2=0 A) One Solution B) Two Solutions C) No solutions D) Infinitely many solutions If someone could help me with this that would be great since I am confused. Thank you!
Monday, April 6, 2015 at 10:38am

math
andy and april shared pie.Andy ate 2/5 of the pie april ate 1/3 how much did they eat all together
Monday, April 6, 2015 at 8:57am

math
Susie bought 5 kg of flour and 4 kg of sugar for $14.80.If 3/4kg of flour cost as much as 3/5kg of sugar,find the cost of 1kg of sugar.
Monday, April 6, 2015 at 4:58am

math
1. The cost C of joining FitFast Gym includes an initial membership fee of $127, plus a monthly fee m of $28. The cost of going to the gym is a function of the number of months of membership. Find the rule for the function. 2. Find the cost of using the gym for 9 months. ...
Monday, April 6, 2015 at 1:21am

math
joel runs 7 miles in 60 minutes. at the same rate ,how many miles would he run in 24 minutes
Monday, April 6, 2015 at 12:17am

math
How do you find the slope for the direct variation equation y=11x
Sunday, April 5, 2015 at 8:51pm

Math
Which of the following would best display information in a frequency table that has been divided into categories? A. Bar graph B. Pitograph C. Circle graph D. Histogram Is the answer A? Thank you
Sunday, April 5, 2015 at 8:23pm

Math
The mean of a set of four test scores is 85. If three of the test scores are 81,83, and 85, what is the fourth test score? A. 89 B. 87 C. 91 D. 85 Is the answer A? Thank you
Sunday, April 5, 2015 at 8:13pm

Math
1,000 people were surveyed about the of vehivles they owned. The results are shown in the circle graph below. 42% own a SUV 25% own a Wagon 5% own a Hatchback 25% own a Sedan How many people own a Sedan? A. 2,500 B. 25 C. 3 D.250 Is the answer D? Thank you
Sunday, April 5, 2015 at 7:48pm

Math
An equation can be used to find the height of a child. Equation is h=2c. The child is 36 inches at 18 months. (12in=1ft) How tall is the child?
Sunday, April 5, 2015 at 7:44pm

Math
A back-to-back stem-and-leaf plot showing the points scored be each player on two different basketball teams is shown below. Team 1 | | Team 2 6 1| 0| 3 7 8 4 2| 1|4 6 8 9 9 6 3| 2|5 7 Key: 4|0|2 means 4 points for Team 1 2points for team 2 What is the median number of points ...
Sunday, April 5, 2015 at 7:42pm

Math
Which stem-and-leaf plot represents the data set below? 56,65,67,72,85,88,89,96,97,104,113 A. 5|6 6|5 7 7|2 8|5 8 9 9|6 7 1|04 1|113 B. 5|6 6|5 7 7|2 8|5 8 9 9|6 7 1| 0 4 1| 1 3 c. 5|6 6|5 6 7 7|2 8|5 9 9|6 7 8 10|4 11|3
Sunday, April 5, 2015 at 7:34pm

Math
What are the mean, median, mode, and range of the data set 18,19,20,21,23,26,26,26? A. Mean=22.4; Median=22; Mode=26 B. Mean=22.4; Median=26; Mode=22 C. Mean=26; Median=22.4; Mode=24 D. Mean=23.4; Median=22; Mode=26 Is the answer A? Thank you for your help
Sunday, April 5, 2015 at 6:42pm

Math
On Joe Martin's graduation from college, Joe's uncle promised him a gift of $12000 in cash or $900 every quarter for the next 4 years after graduation. If money could be invested at 8% compounded quarterly, which offer is better for Joe? I have done this problem but I ...
Sunday, April 5, 2015 at 5:13pm

Business Math
On Abby Ellen's graduation from law school, Abby's uncle, Bull Brady, promised her a gift of $24,000 or $2,400 every quarter for the next 4 years after graduating from law school. If the money could be invested at 6% compounded quarterly, which offer should Abby choose?
Sunday, April 5, 2015 at 4:47pm

Math
What are the decimals less than 1/2? I don't know how to do this. Pls help😞
Sunday, April 5, 2015 at 4:19pm

Math
what are the values of the function y = -2x - 4 for x= 0,1,2 and 3? (1 point) A: 0,-6,-8,-10 B: -4,-6,-8,-10 C: -4,-2,0,2 D: 0,6,8,10 Please help me !!!! I'm doing a big math quiz and I can't figure this one out! I got all the other ones right can you please help me...
Sunday, April 5, 2015 at 11:12am

math
Antwon is having a party for 48 people.he surveyed the group and found out that five-eights of them like snickers and seven-twelve of them like milk ways . he wants to get the candy liked by most guest. which candy should he buy?
Sunday, April 5, 2015 at 10:42am

Math
Jorge wants to bring 150 cookies. How much flour will he need to make 150 cookies?
Sunday, April 5, 2015 at 10:17am

Math
The equation of the line a is y = -2x + 5. Find the equation of the image of line a after a dilation centered at the origin with scale factor 2. -4x + 10?
Saturday, April 4, 2015 at 11:48pm

Math Question
Tom Newman took out a simple interest loan of $1,500.00 at 10 percent interest for 12 months. after 4 payments the balance is 1,100. he pays off the loan when the next payment is due what is the interest? Is it $9.17 Thanks!!
Saturday, April 4, 2015 at 10:27pm

math
Jayden had some items to store in a storage unit that was 10 feet long , 8 feet wide , and 10 feet high. What is the volume of the storage unit ?
Saturday, April 4, 2015 at 5:50pm

math
Adam wants to compare the fraction 2/5 1/6 and 1/3 he wants to order them from least to greastest and rewrite them so they all have the same denominator explain how Adam can rewrite the fraction
Saturday, April 4, 2015 at 5:35pm

math
Brenden read 3/4 of a book that was 7/8 inch thick . how much of the book , in inches , did he read ?
Saturday, April 4, 2015 at 5:15pm

math
Of 25 students who took a test in math , only 5 received A's .what fraction of the class received an A on the test? Write your answer in simplest form.
Saturday, April 4, 2015 at 4:56pm

math
Say if these numbers make a right triangle and a Pythagorean triple: 2, 2 square root 2, and 2 square root 3. I am confident that the answer for both parts of the question is no, because when 2 is squared and when 2 square root 2 is squared it is larger than 2 root 3 squared. ...
Saturday, April 4, 2015 at 4:51pm

math
If student A sold 1/5 as many as student B who sold 90 , how many pizzas did student A sell ?
Saturday, April 4, 2015 at 4:40pm

Math
Jamie wants to build a cd case for his room. The wood he will use is 3/4 inch thick and the four shelves are 6 3/8 inch apart. What is the height of the cd case?
Saturday, April 4, 2015 at 4:26pm

math
Twenty -five students in a class were selling pizzas door to door in a community of 500.if the town was divided evenly among the students , how many did each student visit?
Saturday, April 4, 2015 at 3:50pm

math
Five people share these four candy bars . what fraction does each share?
Saturday, April 4, 2015 at 3:21pm

math
Five people share these four candy bars. What fraction does each share?
Saturday, April 4, 2015 at 2:52pm

math
Mani, James, and isidro equally shared 1/2 of a pie. Which fraction of the whole pie did each of them receive ?
Saturday, April 4, 2015 at 2:47pm

math
A recipe for 1batch of muffins included 2/3 cup of raisins.Ina made 2 and 1/2 batches of muffins.how many cups of raisins did she use
Saturday, April 4, 2015 at 2:41pm

Math
Jorge wants to bring 150 cookies. How much flour will he need to make 150 cookies? if I divide 60 into 150 = 25. will I need 25 cups of flour to make this true?
Saturday, April 4, 2015 at 1:16pm

Math
Please explain to me 1 1/2 times the recipe. are we dividing this by 2 which will be 5/2=2 1/2?
Saturday, April 4, 2015 at 12:56pm

math
Tshabalala wants to reconstruct his farm to separate his sheep and goats. Therefore he decided to enclose a rectangular field with a fence and divide it into two smaller rectangular fields by constructing another fence parallel to one side of the field. He has 4500m of fencing...
Saturday, April 4, 2015 at 12:53pm

math
Tshabalala wants to reconstruct his farm to separate his sheep and goats. Therefore he decided to enclose a rectangular field with a fence and divide it into two smaller rectangular fields by constructing another fence parallel to one side of the field. He has 4500m of fencing...
Saturday, April 4, 2015 at 12:50pm

math
solve: 2x + 5 = 3x - 9
Saturday, April 4, 2015 at 12:25pm

math
4mLA=5mLB, find mLC
Saturday, April 4, 2015 at 11:04am

Math
Please explain to me 1 1/2 times the recipe.
Saturday, April 4, 2015 at 10:13am

math
A girl bought some pencils, erasers, and paper clips at the stationery store. The pencils cost IDR. 1000 each, the erasers cost IDR. 500 each and the paper clips cost 2 for IDR. 100. If she bought total cost IDR. 10000, how many of each did she buy ? I wrote : Pencil = X = IDR...
Saturday, April 4, 2015 at 6:25am

math
Stewart is playing a video game. He earns the same number of points for each prize he captures. He earned 1,200 points for 6 prizes, 2,000 points for 10 prizes, and 2,600 points for 13 prizes. Which is the dependent variable in this situation? A)the number of prizes captured B...
Saturday, April 4, 2015 at 3:15am

Consumer Math
If XYZ stock is quoted at 523/4 per share, what is the market price per share A. $52.75 B. $52.34 C. $275.00 D. $75.00? A?
Friday, April 3, 2015 at 11:36pm

Math
Marco is making a scale model of a building. The building has a round deck at the bottom with a diameter of 120 meters. What should the diameter of the deck in the scale model be if Marco wants the circumference to be 1/40 actual size?
Friday, April 3, 2015 at 10:22pm

math discrete 2
Define g: R→R by the rule g(x)=4x-5 for all real number x. Find g-1(y)
Friday, April 3, 2015 at 7:31pm

math discrete
Given function f(x)=4x3-5, g(x)=2x and h(x)=x2. Find composition of h◦(g◦f)
Friday, April 3, 2015 at 7:24pm

Math
While golfing, Sahar hits a tee shot from T toward a hole at H, but the ball veers 23 degrees and lands at B. The scorecard says that H is 270 m from T. If Sahar walks 160 m to the ball(B), how far, to the nearest metre, is the ball from the hole?
Friday, April 3, 2015 at 7:02pm

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