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January 31, 2015

January 31, 2015

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math**

Evaluate these problems: 1.) Sin=1/7 Find csc= 2.) tan=2/3 Find cot=
*Monday, December 1, 2014 at 11:34am*

**Math**

Set up and solve a system of equations to solve the application. A rectangular area of 525 square feet is enclosed using 100 feet of fence. What are the dimensions?
*Monday, December 1, 2014 at 10:10am*

**Math**

4+8+12+16+............+64=?
*Monday, December 1, 2014 at 6:04am*

**Math**

On Monday, thirty percent of the pies sold at the pie store were apple. If 24 apple pies were sold on Monday, how many of the other pies were sold that day? I think I should start with 30/100 and 24/x but I am not sure. =80
*Monday, December 1, 2014 at 2:55am*

**Math**

Two ships are moving toward a rendezvous point. Ship A is 5km east and 4km north of the point Ship B is 1km west and 2km north pf the point. How many km part are the two ships? Please . I really need your help
*Monday, December 1, 2014 at 12:34am*

**math**

Janet bought 1/2 cake. She ate 1/4 of the cake she bought. Then she cut the remainder into 2 equal pieces. What fraction of a whole cake was each piece?
*Monday, December 1, 2014 at 12:13am*

**math**

The line segment joining ( -3,-4) and (6,11) is to be divided in to three (3) equal parts. Find the coordinates of the point of the part closest to (-3,-4). Please help me..
*Monday, December 1, 2014 at 12:06am*

**Math**

1. A town has a population of 100,000 now and the population is increasing 10% every year. What will be the population in 5 years? 2. How many poles will be in a pile of telephone poles if there are 30 in the bottom layer, 29 in the second, and so on, until there is one in the...
*Monday, December 1, 2014 at 12:05am*

**Math**

1. If 100 is saved on October 1, 150 on October 2, 200 on October 3, and so on, how much is saved during October? 2. A Ping-Pong ball is dropped from a height of 16 ft and always rebounds 1/4 of the distance of the previous fall. a. What distance does it rebound the 6th time? ...
*Sunday, November 30, 2014 at 11:18pm*

**Math**

In a math contest of 10 problems, 5 points was given for each correct answer and 2 points was deducted for each incorrect answer. If Nancy did all 10 problems ad scored 29 points, how many correct answers did she have?
*Sunday, November 30, 2014 at 11:16pm*

**Sixth Grade Math**

A car driving cross-country traveled 180 miles in 4 hours. At this rate of speed, how many miles further will the car travel in the next 3 hours? My answer is 135 miles. Is my answer correct?
*Sunday, November 30, 2014 at 10:39pm*

**Math PLEASE HELP ME**

A man has $210,000 invested in three properties. One earns 12%, one 10% and one 8%. His annual income from the properties is $20,100 and the amount invested at 8% is twice that invested at 12%. How much is invested in each property? at 12% 10% and 8% What is the annual income ...
*Sunday, November 30, 2014 at 10:39pm*

**Math**

Carl needs estimate the quotient 547 divideted by 92 explain how Carl could use compatible numbers to make a reasonable estimate
*Sunday, November 30, 2014 at 10:18pm*

**Math**

A town has 4900 registered voters, each of whom is either a Republican, a Democrat or an Independent. In the last primary election, 1150 people voted, and the number of Republicans who voted was 720 fewer than 30% of the total number of Democrats plus Independents combined. ...
*Sunday, November 30, 2014 at 9:01pm*

**MATH **

The following data represent the asking price of a simple random sample of homes for sale. Construct a 99% confidence interval with and without the outlier included. Comment on the effect the outlier has on the confidence interval. Here is the information: $162,000 $279,900 $...
*Sunday, November 30, 2014 at 8:53pm*

**Math**

A triangular region is bound by the three lines 2x+y-12=0, y=3x-3, and y=1/7x-81/7. What is the circumcentre of this triangle? I can find the answer using a graph, but I don't know the formula to find the mid segments of the lines.
*Sunday, November 30, 2014 at 8:42pm*

**Math please help!**

A glass of skim milk supplies 0.1 mg of iron, 8.5 g of protein, and 1 g of carbohydrates. A quarter pound of lean red meat provides 3.4 mg of iron, 22 g of protein, and 20 g of carbohydrates. Two slices of whole-grain bread supply 2.2 mg of iron, 10 g of protein, and 12 g of ...
*Sunday, November 30, 2014 at 8:28pm*

**Math**

1. A town has a population of 100,000 now and the population is increasing 10% every year. What will be the population in 5 years? 2. How many poles will be in a pile of telephone poles if there are 30 in the bottom layer, 29 in the second, and so on, until there is one in the...
*Sunday, November 30, 2014 at 8:07pm*

**MATH **

The following data represent the asking price of a simple random sample of homes for sale. Construct a 99% confidence interval with and without the outlier included. Comment on the effect the outlier has on the confidence interval. Here is the information: $231,500 $279,900 $...
*Sunday, November 30, 2014 at 8:02pm*

**Math**

1. If 100 is saved on October 1, 150 on October 2, 200 on October 3, and so on, how much is saved during October? 2. A Ping-Pong ball is dropped from a height of 16 ft and always rebounds 1/4 of the distance of the previous fall. a. What distance does it rebound the 6th time? ...
*Sunday, November 30, 2014 at 8:01pm*

**STATS MATH 1**

A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for a random sample of 1065 people age 15 or older, the mean amount of time spent eating or drinking per day is 1.62 hours with a standard deviation of 0.51 hour. (1)Determine ...
*Sunday, November 30, 2014 at 7:56pm*

**math**

Tina says that 6:8 is equivalent to 36:64. What did Tina do wrong?
*Sunday, November 30, 2014 at 7:50pm*

**math**

the ratio of girls to boys in the chorus is 3:2. If there are 50 students in chorus, how many boys are there and how many girls?
*Sunday, November 30, 2014 at 7:48pm*

**math**

Sinea and Ren are going to the carnival next $8, souvenirs - $20 Sinea wants to spend money using the same ratios as on her last trip to the carnival. If she spends $26 on games, how much will she spend on souvenirs? Ren wants to spend money using the same ratios as on his ...
*Sunday, November 30, 2014 at 7:39pm*

**Math Stats**

The following data represent the age (in weeks) at which babies first crawl based on a survey of 12 mothers. 52, 30, 44, 35, 47, 37, 56, 26, 35, 35, 52, 52 __________________________________________________________________________ Construct a 95% confidence interval for...
*Sunday, November 30, 2014 at 7:26pm*

**Math Stats**

The following data represent the asking price of a simple random sample of homes for sale. Construct a 99% confidence interval with and without the outlier included. Comment on the effect the outlier has on the confidence interval. Here is the information: $231,500 $279,900 $...
*Sunday, November 30, 2014 at 7:15pm*

**math**

the ratio of boys to girls on the bus is 20/15. what are three ratio equivalents.
*Sunday, November 30, 2014 at 6:51pm*

**math**

The ratio of cups of water to cups of milk in a recipe is 1 to 3. Write three ratios equivalent to the ratio?
*Sunday, November 30, 2014 at 4:17pm*

**Math**

Which of the expressions is not equivalent to 1/25? A. 5^3×5^-5 B. 5^-1×5^-1 C. 5^-3×5 D. 5^-2×5^4
*Sunday, November 30, 2014 at 3:34pm*

**math**

Sean has 8-inch pieces of toy train track and Ruth has 18-inches of train track. How many of each piece would each child need to build tracks that are equal in length?
*Sunday, November 30, 2014 at 3:11pm*

**math**

Evaluate the expression. 11! 6! 4! 2! 3! 1!
*Sunday, November 30, 2014 at 11:17am*

**math**

Tarot cards are used for telling fortunes, and in a reading, the arrangement of the cards is as important as the cards themselves. How many different readings are possible if five cards are selected from a set of nine Tarot cards?
*Sunday, November 30, 2014 at 11:15am*

**SIXTH GRADE MATH**

The ratio of boys to girls at a day care cent is 5 to 4. Which of the following cannot be the total number of children at the center? A. 27 children B. 54 children C. 60 children D. 72 children Is the answer 60. The reason I chose 60 children is because the total number of ...
*Sunday, November 30, 2014 at 10:50am*

**SIXTH GRADE MATH**

The staff of the Westpoint Public Library signed up 6 volunteers in the last 21 days. If the library staff continues to sign up volunteers at this rate, how many new volunteers will they get in the next 7-day week? 2 volunteers is my answer. Is my answer correct?. If not I ...
*Sunday, November 30, 2014 at 10:21am*

**Math**

Robyn and Shruti both run on the cross country team. Robyn runs 2 miles every day. Shruti starts her week with a 3-mile run and runs 1 mile every day, even on the day she runs the 3 miles. If M is the number of miles run during the week, and d id the number of days the girl ...
*Sunday, November 30, 2014 at 10:17am*

**SIXTH GRADE MATH**

The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please?
*Sunday, November 30, 2014 at 10:07am*

**math**

Find the height of a ball after 3 seconds, if the ball is hit with an initial velocity of 90 feet per second at an angle of 60 degrees from an initial height of 5 feet.
*Sunday, November 30, 2014 at 9:00am*

**math**

Kendra has a painting canvas that is 27 inches wide by 33 inches high. She painted a red rose, which covered 40% of the canvas. What was the area of the canvas which was covered by the red rose?
*Sunday, November 30, 2014 at 8:54am*

**math**

A prism has a base which is a right triangle with legs, 16mm and 12 mm
*Sunday, November 30, 2014 at 6:12am*

**Math**

ABC *AA Ans: AC6C Find ABC values?
*Sunday, November 30, 2014 at 4:52am*

**Math**

if f(x) = 2x^2+4 and g(x)=x-3 which number satisfies f(x)= (f o g)(x) A) 3/2 B) 3/4 C) 5 D) 4 I am positive that answer A is correct, i just cant get the work to prove it, i can disprove all other answers and my teacher has assured me i am on the right track, he wants work ...
*Sunday, November 30, 2014 at 2:15am*

**Math**

A game is played by throwing darts at a target. A player can choose to throw two or three darts. Darcy plays two games. In Game 1, he chooses to throw two darts, and wins if he hits the target at least once. In Game 2, he chooses to throw three darts, and wins if he hits the ...
*Sunday, November 30, 2014 at 1:01am*

**Math**

b_n=(-2)^(n-1)
*Sunday, November 30, 2014 at 12:11am*

**Math (Expectation)**

Robyn and Shruti both run on the cross country team. Robyn runs 2 miles every day. Shruti starts her week with a 3-mile run and runs 1 mile every day, even on the day she runs the 3 miles. If M is the number of miles run during the week, and d id the number of days the girl ...
*Saturday, November 29, 2014 at 11:12pm*

**Math**

While playing in a soccer match, Kevin ran from his end of the field to the opposing end and back 33 times. The field is 330 feet long. How many miles did Kevin run during his match? Need someone to explain in details.
*Saturday, November 29, 2014 at 11:05pm*

**Math**

The ratio od boys to girls in the checkers club at Anastasia's school is equal to 2:3. The number od club memers is more than 20 and fewer than 30. How many club members are there? My answer is 10 members. Is my answer correct? If not can you show me what I did wrong?
*Saturday, November 29, 2014 at 10:52pm*

**Algebra **

Math The Monahans have 21 meters of fencing with which to enclose a garden. If they plan to make the garden twice as long as it is wide, what is its maximum width?
*Saturday, November 29, 2014 at 10:25pm*

**math**

Find the taylor polynomial of degree 3 for f(x)=1/x+2 F(x)=-1/x+2)
*Saturday, November 29, 2014 at 10:11pm*

**math**

Juan lives 2.5 miles to the park. It took him 12 minutes to ride his bike to the park. What was his average speed in miles per hour
*Saturday, November 29, 2014 at 10:02pm*

**math**

how do I solve quadratic equations by elimination? eg: 6x^2-3x=2y-5 2x^2+x=y-4
*Saturday, November 29, 2014 at 9:47pm*

**Math Help!**

Find the percent of change when the price of a radio changes from $40.00 to $44.00. A, 12% B. 10% C. 36.4% D. 40% Is the answer B? Thank you
*Saturday, November 29, 2014 at 9:40pm*

**math calculus**

convert these symmetric equations to parametric form: line 1:(x-1)/k = (y-2)/2 = (z+1)/k-1 and line 2: (x+3)/-2 = (z)/1, y=-1
*Saturday, November 29, 2014 at 7:49pm*

**math calculus**

For the function: f(x)= 2+x-x^2/ (x-1)^2 ; f'(x)= x-5/(x-1)^3 ; f''(x)=2x-14/(x-1)^4 a)find vertical and horizontal asymptotes. Examine vertical asymptote on either side of discontinuity. b)find any local extrema c)find points of inflection
*Saturday, November 29, 2014 at 7:45pm*

**Math**

What is the riddle for moving words
*Saturday, November 29, 2014 at 7:33pm*

**Math**

Where is the function sinx - x undefined?
*Saturday, November 29, 2014 at 4:14pm*

**Math**

A carpenter has a wodden stick that s 84 centimeters long.She cuts of 25% from the end of the stick.Then she cuts the remaining stick into 6 equal pieces.What is the lenght of each piece?
*Saturday, November 29, 2014 at 3:51pm*

**Math**

Diffrentiate implicitly with respect to x. Solve for y' 3xy - 2x^2 + 5y^2 =7
*Saturday, November 29, 2014 at 3:24pm*

**math geometry project**

Design a dance floor with a mosaic pattern. • Classify triangles, use congruent triangles in real-life situations, find the areas of triangles and quadrilaterals. Investigation: You work for a construction company. One of your clients wants the company to build a 16 foot ...
*Saturday, November 29, 2014 at 2:59pm*

**math**

FreddieMac reports that the average rate on a 30-year fixed rate mortgage is 3.92% as of January 2012. This is down from 4.76% in January 2011 and 5.03% in January 2010. If you have a $225,000, 5%, 30-year mortgage, how much interest will you save if you refinance your loan at...
*Saturday, November 29, 2014 at 2:50pm*

**math**

Multiply 34.5 by 14 and you should get 483 right. So when i did the math, i got 4830. Can you explain what i did wrong? Do i have to cross out the zero?
*Saturday, November 29, 2014 at 2:09pm*

**math**

Mrs. Stewart said the class average was 85. The actual quiz average was 72. What is her percent error rounded to the nearest tenth of a percent?
*Saturday, November 29, 2014 at 2:03pm*

**math**

how do you do 6th grade math cryptic quiz ?
*Saturday, November 29, 2014 at 1:35pm*

**math**

A woman added 376 ml of liquid gasoline additive to the 17.4L of gasoline in her car's tank. Find the total amount of liquid in the tank. There are now _L of liquid in the tank.
*Saturday, November 29, 2014 at 1:21pm*

**math**

5gal 1qt - 2qt 1pt= _gal _qt _pt
*Saturday, November 29, 2014 at 1:19pm*

**math**

2c 5fl oz + 2c 2fl oz = _c _fl oz
*Saturday, November 29, 2014 at 1:16pm*

**Math 032**

Jim is 7ft 9in tall. Jane is 22.3in tall. How many times taller than Jane is Jim?
*Saturday, November 29, 2014 at 12:52pm*

**math**

the school colors are blue and white. She has 84 blue balloons and 96 white balloons . How many balloon bouquets can she make if she wants to have the same number of each color in each bouquet and use all of her balloons?
*Saturday, November 29, 2014 at 12:24pm*

**Math**

The ratio of boys to girls at a day care center is 5 to 4. Which of following cannot be the total number of children at the center? A. 27 B. 54 C. 60 D. 72
*Saturday, November 29, 2014 at 12:15pm*

**SIXTH GRADE MATH**

The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please?
*Saturday, November 29, 2014 at 12:08pm*

**math**

an observer 1.5meters tall is 20.5 metres away from a tower 22 metres high. determine the angle of elevation of the top of the tower from the eye of the observer
*Saturday, November 29, 2014 at 2:39am*

**English**

1. I have to do scince and math homework tonight. 2. I have to do my science and math homework. ------------ Are both grammatical? Which one is commonly used? Do you have other way of expressing?
*Saturday, November 29, 2014 at 1:49am*

**math**

5/2 - 3/8 log3 plz answer in decimal
*Saturday, November 29, 2014 at 12:48am*

**math**

1/4 log base 2 (4)+ 1/8 log base 2 (8)+ 3/8 log base 2 (8/3)+ 1/4 log base 2 (4)
*Saturday, November 29, 2014 at 12:24am*

**Math**

Simplify 25a³b - 10a²b³ + 19b² -10a³b + 30a²b³ - 29b² and factor. I got 5b( 3a^3 - 2b + 4a^2b) But how do I find the GFC?
*Friday, November 28, 2014 at 7:34pm*

**math**

what is 1045*1234
*Friday, November 28, 2014 at 7:30pm*

**Math**

write the partial fraction decomposition step by step ((5x-1)/(x^2+4)) - ((4)/(x^2+4)^2)
*Friday, November 28, 2014 at 7:28pm*

**Math**

Kathleen has been tracking how fast she walks over the last moth and determined that she walks 1 1/4 of an hour. Lynn has been tracking how fast she walks over the past few weeks and determined that it takes her 19 min and 12 seconds to walk one mile. Write Kathleen's and ...
*Friday, November 28, 2014 at 7:19pm*

**Math**

A cube has a volume of 50 653 cubic metres. What is the surface area of the cube?
*Friday, November 28, 2014 at 6:03pm*

**math **

write the following square root in the form a root b . where a and b are integers and b has the least value possiable. 3 root 7?
*Friday, November 28, 2014 at 5:46pm*

**MATH**

A company will need 65,000 in 6 years to add an addition. to meet this goal the company deposits money in an account today that pays 5% annual intrest compoundded quarterly. Find the amount that should be invested to total 65,000 in 6 years. the company should invest? plz help...
*Friday, November 28, 2014 at 4:39pm*

**MATH**

write the following square root in the aVb , where a and b are integers and b has the least value possible. V63?
*Friday, November 28, 2014 at 2:50pm*

**math**

a company will need $30.000 in 7 years for a new addition. To meat this goal the company deposits money in an account today that pays 7% annual interest compounded quarterly. find the amount that should be invested to total $30.000 in 7 years?
*Friday, November 28, 2014 at 2:29pm*

**Math**

How would I expand this two quadratic equations and find a & x for both of them? Here are my equations: y=a(x+1.5)^2+0 y=a(x+2)^2+1.5
*Friday, November 28, 2014 at 1:10pm*

**Plz help with 8th grade math**

Jack’s brother Joey is learning about shadows in school. Joey measures Jack’s shadow and finds that it is 4 feet long. Joey looks over at a 56-foothigh building next to the 2 of them and wonders how long the shadow of the building is. Assuming Jack is 5 feet tall, ...
*Friday, November 28, 2014 at 12:56pm*

**Math**

A 25 foot ladder is leaning against a house at a 63 degree angle. How far up does it reach off the ground?
*Friday, November 28, 2014 at 11:34am*

**math**

The 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one twenty fourth the 5th term.find the 4th term.(there is a mistake in the 2nd to the last statement.help locate the mistake{final answer 4th term =48).i solved to this extent.ar^2=9 r=3.
*Friday, November 28, 2014 at 11:19am*

**math**

the 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one-twenty fourth the 5th term.find the 4th term.(my solution so far).ar^2=9a r=sqr of 9 r=3.help me find the 1st term
*Friday, November 28, 2014 at 10:57am*

**math**

Use mathematical induction to show that 3n + 7n − 2 is divisible by 8 for all n 1. [Hint: 7n + 1 is divisible by 2.]
*Friday, November 28, 2014 at 10:32am*

**Math**

The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. If two light sources, one four times as strong as the other, are placed 11 ft apart, how far away ...
*Friday, November 28, 2014 at 4:05am*

**math**

A test had 200 questions .Each correct answer carried 2 marks.Each wrong answer carried -1/2 marks and unanswered question fetched no marks .Ajay attempted all the question in the test and he scored 360 marks.What would his marks be, if for each correct answer he got 1/2 marks...
*Friday, November 28, 2014 at 3:19am*

**MATH 100**

The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. If two light sources, one 10 times as strong as the other, are placed 9 ft apart, how many feet from...
*Thursday, November 27, 2014 at 10:12pm*

**Math**

The two equal sides of an isosceles triangle are each 24 centimeters. If each of the two equal angles measures 60, find the length of the base and the altitude. (leave your answer in radical form).
*Thursday, November 27, 2014 at 7:30pm*

**math**

i am a 3digit number that is less than 500. My ones digit is twice the hundreds digit. The sum of the three digits is 14. What number am I?
*Thursday, November 27, 2014 at 6:14pm*

**Math**

write the partial fraction decomposition step by step (-5x^2-8x-3)/(x^3+x^2+x)
*Thursday, November 27, 2014 at 5:31pm*

**math**

The 3rd term of a geometric progression is nine times the first term.if the second term is one-twenty fourth the 5th term.find the 4th term. solution ar^2=9a r=sqr of 9 r=3.pls help me on how to get the first term(a)
*Thursday, November 27, 2014 at 2:17pm*

**Math**

The sides of the equilateral are given in cm. 3x 2,2y-x,y 3. Find x and y and the perimeter of the triangle
*Thursday, November 27, 2014 at 2:17pm*

**math**

Water lillies double in area every 24 hour. In spring there is one water lily on a lake. In sixty days, the lake is completely covered with lillies. how many days did it take to cover half the lake
*Thursday, November 27, 2014 at 12:39pm*

**8th grade math question..**

Lashonda found a recipe that makes 2 1/2 dozen cupcakes and requires 1/4 cup of vegetable oil. If she makes 90 cupcakes for a family reunion picnic, how much vegetable oil will she need?
*Thursday, November 27, 2014 at 12:34pm*

**math**

The third term of a geometric progressiom is nine times the first term.if the second term is one-twenty fourth the fifth term.find the fourth term.ar^2=9a. r=sqr of 9 r=3.pls teach me how to get the first term and i can get the 4th term myself
*Thursday, November 27, 2014 at 11:37am*

**Math**

if the lenght and breath of a rectangle are in the ratio 3:2,then what is the breath if the lenght is 1.5m
*Thursday, November 27, 2014 at 11:33am*

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