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September 21, 2014

September 21, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math**

– 11 is the __________ term of the arithmetic sequence – 847, – 836, – 825, – 814, – 803, …
*Tuesday, June 17, 2014 at 9:54pm*

**Math**

Find the value of x so that 3x – 2, 2x – 1 and 4x – 3 form an arithmetic sequence.
*Tuesday, June 17, 2014 at 9:04pm*

**Math**

Black Eyed Peas’ 2011 Live Concert is to take place in a circular park. Due to the shape of the area, seats are set up so that the innermost row has 64 seats and each successive row has 17 more seats than the row before it. The park’s open area can accommodate 17 ...
*Tuesday, June 17, 2014 at 9:03pm*

**Math **

Hi, I needed help with this improper integral. lower limit : 2 upper limit : infinity integral of (lnx)/(x+1) dx Thank You so much :D
*Tuesday, June 17, 2014 at 8:54pm*

**Math**

Find the 12th term of the arithmetic sequence 2, 6, 10, … .
*Tuesday, June 17, 2014 at 8:47pm*

**Math**

Solve for the 101st term of the sequence whose 1st term is x-y and d=2x+y-3.
*Tuesday, June 17, 2014 at 8:46pm*

**Math**

The entire can needs to be painted, including the top and bottom. If the diameter of the lid (x) is 5 cm, and the height of the can (y) is 9 cm, what is the approximate total surface area that will need to be painted?
*Tuesday, June 17, 2014 at 8:08pm*

**MATH **

Solve the system of linear equations 2x+y-3z=4 4x+2z=10 -2x+3y-13z=-8 *im so lost (all these numbers are in one problem)
*Tuesday, June 17, 2014 at 7:51pm*

**math**

what is the vertex of y=x^2-4 ??
*Tuesday, June 17, 2014 at 7:00pm*

**math**

Shipping dimensions given by the distributor are 10 cm x 20 cm x 22 cm. What will you enter in ‘Shipping dimensions’ field in our system? Shipping dimensions = ?
*Tuesday, June 17, 2014 at 6:01pm*

**Math PLZ help me**

Hi, I needed help with this improper integral. lower limit : 2 upper limit : infinity integral of (lnx)/(x+1) dx Thank You so much :D
*Tuesday, June 17, 2014 at 5:34pm*

**Math**

The class with the greatest mean sales in a spring fundraiser will win a prize. The mean for Eric's class is $148. The mean for Natalia's class is $152. Natalia's sales total $150. If Natalia moves to Eric's class, the mean for each class increases. Explain why?
*Tuesday, June 17, 2014 at 5:02pm*

**finite math **

According to a certain countries 44.5% of 3 year olds are enrolled in daycare. What is the probability that a randomly selected 3 year old is enrolled in daycare. edited
*Tuesday, June 17, 2014 at 2:20pm*

**Math **

Write the quadratic function in standard form (if necessary) and sketch its graph. Identify the vertex. f(x)=x^2+3x+1/4
*Tuesday, June 17, 2014 at 2:15pm*

**Math**

A hair product company sells three types of hair products for $30, $20, and $10 per unit. In one year, the total revenue for the three products was $800,000, which corresponded to the sale of 40,000 units. The company sold half as many units of the $30 product as units of the...
*Tuesday, June 17, 2014 at 2:08pm*

**MaTh..**

Determine whether the system of equations is in row-echelon form. x-y+3z=-11 y+8z=-12 z=-2
*Tuesday, June 17, 2014 at 2:03pm*

**finite math**

Suppose that E and F are two events P(E and F)=0.1 and P(E)=0.5. what is P(F/E)?
*Tuesday, June 17, 2014 at 1:48pm*

**finite math**

Among 26-31 year old, 29% say they have written an editorial letter while under the influence of peer pressure. Suppose six 26-31 year old are selected at random. (a) that at least one has not written under the influence of peer pressure. (b) what is the probability of that at...
*Tuesday, June 17, 2014 at 1:47pm*

**finite math **

The probability that a 3-year old garter snake will reach 4 years old is 0.94461. (a) what is the probability that two randomly selected will reach 4 years old? What is the probability that five randomly selected 3 year old garter snakes will reach 4 years old?
*Tuesday, June 17, 2014 at 1:46pm*

**finite math**

A probability experiment was conducted in which the sample space of the experiment is S={1,2,3,4,5,6,7,8,9,10,11,12}, event F= {3,6,7,}, and event G={9,10,12}. Assume that each outcome is equally likely. List the outcomes of F and G. find P(F or G) by counting the number of ...
*Tuesday, June 17, 2014 at 1:42pm*

**finite math**

A baseball player hit 54 homeruns in a season. Of the runs, 17 went to right field, 16 went to right center field, 8 went to center field, 8 went to left center field and 5 went to left field. What is the probability that a randomly selected home run went to left field.
*Tuesday, June 17, 2014 at 1:33pm*

**finite math**

According to a certain countries 43.8% of 3 year olds are enrolled in daycare. What is the probability that a randomly selected 3 year old is enrolled in daycare.
*Tuesday, June 17, 2014 at 1:32pm*

**finite math (probability**

suppose you toss a coin 100 times and get 57 heads and 43 tails. Based on the results what is the probability that the next toss will be head.
*Tuesday, June 17, 2014 at 1:28pm*

**math**

Mr. Simon landscapes new houses for a building contractor. He charges by the square meter of yard space plus a setup fee. He billed the contractor $2,150 for a 400-square- meter yard and $1,650 for a 300-square-meter yard. Write an equation in the form y = mx + b that can be ...
*Tuesday, June 17, 2014 at 12:54pm*

**math**

Evan is making a table that will be created in the shape of the figure below. The table top is a triangle attached to a rectangle. To purchase the right amount of paint, he needs to know the area of the table top. He can only spend $10 on paint, which is enough to cover 150 ...
*Tuesday, June 17, 2014 at 11:04am*

**math**

'a gardener plants an orchid with 5776 trees. in each row there were as many trees as the number of rows. find the number of rows'
*Tuesday, June 17, 2014 at 10:54am*

**math**

e. Felix Baumgartner is a daredevil famous for breaking the sound barrier during a freefall on October 14, 2012. Aided by a weather balloon, he climbed to a height of 128,100 feet. More than 24 miles in the air, he was so high up that he could see Earth’s curvature. He ...
*Tuesday, June 17, 2014 at 10:54am*

**Liberal Arts Math**

Marie sells magazine subscriptions. She earns $15 a week plus $3 for each subscription she sells. How many subscriptions must she sell to earn $90 in one week?
*Tuesday, June 17, 2014 at 10:43am*

**math**

Approximately how much principal would need to be placed into an account earning 3.575% interest compounded quarterly so that it has an accumulated value of $68,000 at the end of 30 years?
*Tuesday, June 17, 2014 at 9:59am*

**math apr **

A car with a sticker price of $42,650 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the nearest cent.) (b) Find the monthly payment if financed at 2.5% add-on interest for 60 months. (Round ...
*Tuesday, June 17, 2014 at 9:54am*

**math**

57865 - blank + 23129 = 48675
*Tuesday, June 17, 2014 at 8:41am*

**math**

57865-blank+23129=48675
*Tuesday, June 17, 2014 at 8:40am*

**math**

blank + 5277-9384=2240
*Tuesday, June 17, 2014 at 8:38am*

**math**

maria runs 7 miles in 80 minutes. At the same rate, how many miles would she run in 64 minutes
*Tuesday, June 17, 2014 at 6:33am*

**math**

Mike's number is 2000 more than Jerry's which is 400 less than Barry's. Larry's number is 1500 more than Sam's, which is 443. Sam's number is 60 less than Barry's. WHat is each boy's number?
*Tuesday, June 17, 2014 at 6:16am*

**math**

Mike's number is 2000 more than Jerry's which is 400 less than Barry's. Larry's number is 1500 more than Sam's, which is 443. Sam's number is 60 less than Barry's.
*Tuesday, June 17, 2014 at 6:13am*

**math**

limim bought 2.5 metres of cloth.Each dress used 3/4 metres. If she made 3 dresses, how much cloth was left.
*Monday, June 16, 2014 at 10:46pm*

**math**

Becky works 40 hours each week and makes $320. How much does she make per hour? Use a number line to solve this problem. I have a number line is labeled 0-320 but I cant seem to figure this one out.
*Monday, June 16, 2014 at 9:55pm*

**Math: Trig**

What is Arcsec(-2) equal to and how can you find the correct answer? I got 2pi/3 but it was marked wrong on my test and I'm not sure why it's wrong. Can you please explain this to me? Thanks!
*Monday, June 16, 2014 at 7:38pm*

**Math**

A spinner with 10 equal sections, numbered 1 to 10, is spun. Then a coin is flipped. What is the probability that the spinner will land on 3 and the coin will land on heads?
*Monday, June 16, 2014 at 5:45pm*

**MATH**

what is the integration of e^-|x| from negative infinity to x ?
*Monday, June 16, 2014 at 5:18pm*

**Math**

Evaluate the algebraic expression: 6x+2= 3x-4= 9x+6=
*Monday, June 16, 2014 at 4:22pm*

**Math**

Simplify: sin60/tan30
*Monday, June 16, 2014 at 4:00pm*

**math**

A bottle of water costs $1.50. Explain how you would make a graph of four ordered pairs to model the total cost of the water in terms of the number of bottles.
*Monday, June 16, 2014 at 10:04am*

**Math**

Find the equation of a line which passes through point P(10, 12) and // to y=x/2 + 4
*Monday, June 16, 2014 at 6:50am*

**math**

find the height in feet of a ball after 6 seconds in the air. after one second the ball is 148 feet in the air; after 2 seconds it is 272 feet in the air
*Monday, June 16, 2014 at 1:52am*

**math**

When four times the number is added to 7 times the number, the result is 33, what is the number?
*Sunday, June 15, 2014 at 9:30pm*

**Math**

1. Find the 12th term of the arithmetic sequence 2, 6, 10, … . 2. Solve for the 101st term of the sequence whose 1st term is x-y and d=2x+y-3. 3. In the sequence 2, 6, 10, … , what term has a value of 106?
*Sunday, June 15, 2014 at 9:02pm*

**Math**

Solve for the 101st term of the sequence: 6-p, 4+p, 2+3p, 5p, … .
*Sunday, June 15, 2014 at 9:01pm*

**Math**

Solve for the 1st term of the arithmetic sequence whose 33rd term is -2p and whose 61st term is 26p.
*Sunday, June 15, 2014 at 9:01pm*

**math**

Compute Sun Jung's estimated tax payment for the second quarter. She is self-employed and she expects to earn $61,760 this year. Her estimated income tax rate is 23%. For self-employed persons, social security tax is 12.4% of wages up to $106,800, and Medicare tax is 2.9% ...
*Sunday, June 15, 2014 at 6:12pm*

**math**

to build a 2.5 m by 3 m deck, a local building supply store chargers $1000 for materials, plus the carpenter's wage of $30/h. The store gives you an estimate of $1480 for the total cost. How much time is estimated for the carpenter to build the deck? provide a full ...
*Sunday, June 15, 2014 at 4:29pm*

**Math**

An open-ended regular hexagonal prism whose length is 15cm and whose cross-section has a perimeter of 24cm. Find the surface area.
*Sunday, June 15, 2014 at 12:22pm*

**Math**

angles ABC and XYZ are complementary angles. if m < ABC is 18 more than three times m < XYZ, find < XYZ i have no idea how to do this i know that something has to equal 18+ 3m but i dont understand the (<) sings
*Sunday, June 15, 2014 at 11:31am*

**math**

What is the answer of X' cap Y What is the answer of Y' U Z' What is the answer of (X \ Z ) ' What is the answer of ( Y \ Z ) ' U X ' X={10 ,20 ,30 ,40 ,50} Y={30 ,50, 60, 90, 100} Z={40, 50, 60, 70, 80} U={200, 300}
*Sunday, June 15, 2014 at 10:30am*

**Math**

What are the formulas for 3-D figures?
*Sunday, June 15, 2014 at 9:07am*

**math**

Differences between the external angle and n-1 sides regular polygon and n+2 side regular polygon is 6 degree then what is the each external angle
*Sunday, June 15, 2014 at 8:12am*

**Math**

You have a 50 cm x 50 cm card board. Squares with side length h are cut out of the corners and the sides are folded up to make a box. What polynomial represents the volume of the box formed?
*Sunday, June 15, 2014 at 6:27am*

**math,bearing and distance**

A man walks 100m due north and then 150m on a bearing of s30 degree of north.how far and on what bearing is he.from his original position?
*Saturday, June 14, 2014 at 10:43pm*

**Math**

Question: 88 of 111Leave Questionnaire Your store¡¯s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of...
*Saturday, June 14, 2014 at 9:56pm*

**math statistics**

In a survey of families in which both parents work, one of the questions asked was, "Have you refused a job, promotion, or transfer because it would mean less time with your family?" A total of 200 men and 200 women were asked this question. "Yes" was the ...
*Saturday, June 14, 2014 at 6:23pm*

**Math**

There are 18 animals in the farm. Some ar chickens and some are cows. I counted 50 legs in all. How many of the animals are cows and how many are chickens? K+C=18 2K+4C=50 Can someone help me to solve this problem. Thank you.
*Saturday, June 14, 2014 at 11:59am*

**math**

If x=a^2/3-a^-2/3 the find x^3+3x
*Saturday, June 14, 2014 at 5:02am*

**Math**

If 2 1/3 feet of silver ribbon cost $.21, how much will 9 feet cost
*Friday, June 13, 2014 at 8:08pm*

**Tricky Math tho (Damon)**

Divide. (25x^2 - 40x + 18) div. (5x - 3) need to know how to solve this
*Friday, June 13, 2014 at 7:52pm*

**Almost done with this math tho**

7x- 14 ------- x - 2 x 7; where x =/ 7 7; where x =/ 2 0 I think it is 0.
*Friday, June 13, 2014 at 7:49pm*

**this math tho (Damon or Steve)**

5/sqrt of 30 how do I solv this?
*Friday, June 13, 2014 at 7:44pm*

**this math tho**

31. Solve the equation by completing the square. Round to the nearest hundreth if necessary. x^2 - 6x = 7 x = 7, 1 x = -7, 1 x = -7, -1 x = 7, -1
*Friday, June 13, 2014 at 7:28pm*

**Another this math tho**

what is the simplified form of the expression? 2b^-6 * b^12 I think its 2b^6
*Friday, June 13, 2014 at 7:21pm*

**this math tho**

Which value of x makes the following equation true? 3(x - 4) + 54 = -3x I think it is -6
*Friday, June 13, 2014 at 7:09pm*

**math**

Solve the following inequality for x. 14 + 7x < 5x x < 1.17 x > -7 x > 1.17 x < -7
*Friday, June 13, 2014 at 6:41pm*

**Financial Math**

An investment of $2500 accumulates at 6% p.a compounded semi annually for 3 years. At that time, the interest rate is changed to 5% compounded monthly. How much is the investment worth 2 years after the change in interest rate? What is interest gained at the end of the 5 years.
*Friday, June 13, 2014 at 6:29pm*

**Math**

Evaluate the following expressions: a. 11^0 b. 11^2 / 11^2 c. are the answers to parts a and b the same? Explain why or why not?
*Friday, June 13, 2014 at 5:49pm*

**3 questions Math**

18. What is the simpler form of the following expression? (6x^3 - 1x +1) divided by (2x + 1) -3x^2 + 2x - 1 3x^2 - 2x + 1 -3x^2 + 2x - 1 3x^3 + 2x - 1 19. Solve the equation. 1/2x + 14 - 9/x + 7 = -6 x = - 101/12 x = 101/12 x = - 67/12 x = 67/12 20. The time t required to ...
*Friday, June 13, 2014 at 5:15pm*

**math**

help soni arrange numbers from 1 to 9 in such a sequence that the sum of the numbers in each diagnol should be15. make sure that no number is repeated more then one
*Friday, June 13, 2014 at 11:42am*

**UGRENT HELP, math**

1. Suppose that the amount of algae in a pond triples ever 2 hours. If the pond initially contains 80 ponds of algae, how much algae would be in the pond in 8 hours? 720 1,280 6,480 320 2. What is the order of the numbers from least to greatest? A= 1.5 x 10^3 B= 1.4 x 10^-1 C...
*Friday, June 13, 2014 at 11:37am*

**Math**

Action Video rents only action and horror films. Over one 7 day period, they rented 5 horror films for every 9 action films. If they rented 99 action films, what was the mean number of films they rented per day?
*Friday, June 13, 2014 at 4:37am*

**Math**

√(5y+1)-√(3y-5)=2, I need to solve algebraically, and state any restrictions on the values for the variables, which I can't remember how to do
*Thursday, June 12, 2014 at 11:29pm*

**MAth **

4+sqrt(4+x^2)=x, I need to isolate the x variable in the radical equation, but I can't figure out how to do it. The answer is x=3/2
*Thursday, June 12, 2014 at 10:34pm*

**Math**

Assume that you are drawing two balls without replacement from an urn that contains 13 green balls, 10 blue balls, and 1 red ball. What is the probability that you will draw a blue balls and a red ball?
*Thursday, June 12, 2014 at 10:16pm*

**Math please help**

Find the smallest value on function (3/x)+(4/1-x) on interval (0,1)
*Thursday, June 12, 2014 at 7:50pm*

**Math please help!**

Find lim as x approaches 0 of (e^x-1-x/2-x^3/6)/(x4)
*Thursday, June 12, 2014 at 7:49pm*

**math**

help to solve problem Many ways one can order the 24 letters of the Greek alphabet
*Thursday, June 12, 2014 at 7:37pm*

**Math**

A circular swimming pool has a diameter of 7.4m, and a height of 2.4m. What is the volume of the pool?
*Thursday, June 12, 2014 at 7:12pm*

**MATH**

what is the integration of x . e ^(-x) ? Can you please explain it :) Thanks
*Thursday, June 12, 2014 at 6:59pm*

**Math**

How do you calculate the surface area of a cylinder when the diameter is 15cm and the height it 10cm
*Thursday, June 12, 2014 at 5:48pm*

**math**

what is the sum when 101111 is added to the 6digits number?
*Thursday, June 12, 2014 at 5:08pm*

**MATH**

integration of e^(lambda.x) = ?
*Thursday, June 12, 2014 at 5:04pm*

**Math**

In a sample of 78 widgets, 2 were defective. How many defective widgets would you expect in a sample of 468 widgets?
*Thursday, June 12, 2014 at 4:23pm*

**buisness math**

the single equivalent discount rate of the trade discount 3/3/1 is
*Thursday, June 12, 2014 at 4:12pm*

**Math**

A newspaper carrier has $1.80 in change. He has two more quarters than dimes but three times as many nickels as quarters. How many coins of each type does he have?
*Thursday, June 12, 2014 at 3:38pm*

**Math**

The average price in dollars to rent a studio in Back Bay, Boston, Ma. can be approximated by the equation p=30.2t + 587,where t is the number of years since 1990. Solve this equation for t and use the new equation to determine approximately what year it will be when the ...
*Thursday, June 12, 2014 at 3:36pm*

**math equation**

Please help me to work this out using the inversion method (I'd appreciate if you could provide a step by step breakdown (I don't understand how to do it and my math really sucks!!): Jim spent 1/3 of his salary on food. He spent 1/4 of it on shoes. He has $400 ...
*Thursday, June 12, 2014 at 2:54pm*

** math**

The sum of a number and 1/8 of the number is 54. Find the number.
*Thursday, June 12, 2014 at 11:44am*

**math**

if you watch 14% of sports out of 40 hours how many hours did you watch sports
*Thursday, June 12, 2014 at 11:11am*

**Math**

Two boats are approaching the same dock. Boat A measures 37° from boat B to the dock. Boat B measures 68° from boat A to the dock. What is the angle the boats make with the dock?
*Thursday, June 12, 2014 at 11:09am*

**Math**

I am a five-digit number greater than 60,000 but less than 70,000. My ones is 1 less than my ten thousands digit. All my other are the same. the sum of my digits is 23. what is my number?
*Thursday, June 12, 2014 at 9:57am*

**Math**

For a party; Mike is making an eight layer torte, which consists of eight 7-inch diameter cake layers with a cream topping on each. He knows that one recipe of cream topping will cover 55 square inches of cake. How many batches of the topping must he make to complete his torte...
*Thursday, June 12, 2014 at 7:26am*

**Math**

Traveling in France, Miguel exchanged 12 U.S. dollars for 82.8 francs. A few days later, he exchanged 25 U.S. dollars for francs and got the same exchange rate. How many francs did Miguel receive? Round to the nearest tenth.
*Thursday, June 12, 2014 at 7:17am*

**Math**

In a triangle, the measure of the first angle is four times the measure of the second angle. The measure of the third angle is 84 degrees more than the second angle. What is the measure of the first angle?
*Thursday, June 12, 2014 at 7:07am*

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