Thursday

July 24, 2014

July 24, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**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*

**Math**

576^m-4 = 8^m*3^m find m.
*Thursday, June 12, 2014 at 6:01am*

**math**

Solve the equation cos3x=cos2x for 0¡Üx¡Ü360
*Thursday, June 12, 2014 at 6:01am*

**math**

farmer brown just bought 100 animals. He spent $600 but can't remember how many of each animal he bought. Geese are $21, guinea pigs are $8 and chooks are $3. He remembers he bought an even number of geese. How many of each did he buy?
*Thursday, June 12, 2014 at 5:02am*

**math**

. Jacqueline Strauss, a 25- year- old personal loan officer at Second National Bank, under-stands the importance of starting early when it comes to saving for retirement. She has committed $ 3,000 per year for her retirement fund and assumes that she’ll retire at age 65. ...
*Thursday, June 12, 2014 at 12:02am*

**Math please help!!**

Find the derivative of (2^x-e^x)/(2^x+e^x)
*Wednesday, June 11, 2014 at 11:57pm*

**math**

A hallway measuring 90 feet x 7 feet requires 1/2 a fluid ounce of cleaning solution per square foot. How much cleaning solution is required to clean the hallway
*Wednesday, June 11, 2014 at 11:54pm*

**Math**

The president of Texas state University makes three times as much money as one of the department heads. If the total of their salaries is 290,000, find each worker's salary.
*Wednesday, June 11, 2014 at 11:33pm*

**Math**

If the circumference of a circle is 16 meters what is the approximate area of the circle? Use 3 for pi.
*Wednesday, June 11, 2014 at 10:31pm*

**math**

a 15 foot ladder is leaning against a house with the base of the ladder 4 feet from the house. How high up the house does the ladder reach? round to the nearest tenth foot.
*Wednesday, June 11, 2014 at 10:27pm*

**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?
*Wednesday, June 11, 2014 at 10:19pm*

**Math**

How would I find the derivative of (8x^3)/sqrt(3x-2)?
*Wednesday, June 11, 2014 at 8:32pm*

**Math**

Please Help:) What is the range of f(x)=3x-5 when the domain is {-6,4,8}? Do I just plug in the domains for x?
*Wednesday, June 11, 2014 at 8:21pm*

**Algebra**

Hello! This is a question from my math practice worksheet, and I have no clue how to solve it. Any and all help is greatly appreciated! The table shows a hospital’s patient count for two successive days. Write a linear function using the data (with x representing the day ...
*Wednesday, June 11, 2014 at 8:03pm*

**math**

infinity / 8 = ?
*Wednesday, June 11, 2014 at 7:45pm*

**Math help!**

Find derivative using logarithmic differentiation F(x)= secx^cotx
*Wednesday, June 11, 2014 at 7:39pm*

**Math help!**

Find the derivative of tan(ln(5x))
*Wednesday, June 11, 2014 at 7:34pm*

**Math help!**

Find the derivative. F(x)=x^4+x^2+1/(x^2+1)
*Wednesday, June 11, 2014 at 7:30pm*

**Math**

I've been at this question almost an hour, I just need help before I start pulling hair out of my head! LOL Please Help? :D Solve the inequality and describe the solution set. y - 6 _>_ 12
*Wednesday, June 11, 2014 at 7:12pm*

**math please help!**

Find the derivative if f(x)= e^-3x times sin(4x) use the product rule.
*Wednesday, June 11, 2014 at 7:09pm*

**Math**

Use partial factoring to determine the vertex of y=3x^2+5x-1.
*Wednesday, June 11, 2014 at 6:06pm*

**Math**

2 sides of a triangle are consecutive odd integers. The third side is twice as long as the shortest side. The perimeter is 22. Find the length of the shortest side. I guessed A+b+c=22 and that's as far as I got
*Wednesday, June 11, 2014 at 5:02pm*

**math check**

you and 5 friends go to a concert in how many different ways can you sit in the assigned seats? . . . . . . . . . . . A.720***? . B.120 . C.30 . D.15 (dont remember if i had posted this)
*Wednesday, June 11, 2014 at 4:40pm*

**Math**

angle theta is in the standard position and 0'=<theta=<180'. If cos theta = -2/3, find the exact value of sin theta* tan theta.
*Wednesday, June 11, 2014 at 4:21pm*

**math (cant figure it out)**

you own 7 pairs of jeans and want to take 2 of them with you on vacation. In how many ways can you choose 2 pairs of jeans? . . . . . . . . . . . A.60 . B.21**? . C.20 . D.10
*Wednesday, June 11, 2014 at 4:16pm*

**Math**

b) The median of 15,17,13,19,20,33,22,18 and __ is 18.5 . Is it possible the determine the missing value?
*Wednesday, June 11, 2014 at 3:57pm*

**Math (check answer plz)**

simplify 9C4! . . . . . . . . . . . . . . . . . . . . . . A. 126 . B. 15,120 . C. 5 . D. 3,024******
*Wednesday, June 11, 2014 at 3:33pm*

**Math**

If (a + b / 10) = (a - 0.1b^2 / a - b), what is the value of a? F. 0.001 G. 0.1 H. 1 J. 10 K. 100
*Wednesday, June 11, 2014 at 3:07pm*

**Math**

y - 6 ==> 12 Solve the inequality and describe the solution set
*Wednesday, June 11, 2014 at 2:52pm*

**Math**

find the derivative f(x)= (2^x-e^x)/(2^x+e^x)
*Wednesday, June 11, 2014 at 2:16pm*

**Math**

find the derivative F(x)=tan(ln(5x))
*Wednesday, June 11, 2014 at 2:15pm*

**Math Help!! **

The temperature stayed above -15°. How can I write this as an inequality? Thanks -Cass
*Wednesday, June 11, 2014 at 2:10pm*

**math (check answer plz)**

simplify 8P3! . . . . . . . . . . . . . . . . A. 42 . B. 336********? . C.40,432 . D.56
*Wednesday, June 11, 2014 at 12:38pm*

**math *check* (PERMUTATION)**

simplify 3! . . . . . . . . A.2 B.5 C.3 D.6*************?
*Wednesday, June 11, 2014 at 12:24pm*

**math (check answer plz)**

The probability of a certain hockey player making a goal after hitting a slap shot is 1/5 how many successful slap shots would you expect her to make after 120 attempts? . . . . . . . . . . . . . My answer: 24
*Wednesday, June 11, 2014 at 12:14pm*

**math**

a set of firts five letter of the alphabet
*Wednesday, June 11, 2014 at 6:25am*

**Math (check answer plz)**

13. A true-false test has 12 questions. What is the probability of guessing the correct answers to all of the questions? (1 point) A: 1 over 4096*******? B: 1 over 144 C: 1 over 24 D: 1 over 14
*Wednesday, June 11, 2014 at 12:30am*

**math *check***

11. A basket contains the following pieces of fruit: 3 apples, 2 oranges, 2 bananas, 2 pears, and 5 peaches. Jonas picks a fruit at random and does not replace it. Then Beth picks a fruit at random. What is the probability that Jonas gets a peach and Beth gets an apple? A: ...
*Wednesday, June 11, 2014 at 12:26am*

**math (please check answer)**

10. You have six $1 bills, eight $5 bills, two $10 bills , and four $20 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. What is P($1, then $10)? A. 77/190 B. 3/100 C. 3/95*****? D. 2/5
*Wednesday, June 11, 2014 at 12:07am*

**Math**

How do I solve an inequality like this? -4x-8>4, I know that answer is 3 but every time I solve it I get 1 .
*Tuesday, June 10, 2014 at 10:10pm*

**math (cant figure it out)**

A spinner is divided equally into six parts with the letters F,G,E,I,Q,O. If you spin the spinner twice, what is P(vowel, then Q)? A. 1/10****? B. 1/9 C. 2/9 D. 1/12.
*Tuesday, June 10, 2014 at 9:44pm*

**MATH**

Michael bought a stereo on sale for 20% off the regular price. The regular price of the stereo was $180. What was the sale price of the stereo?
*Tuesday, June 10, 2014 at 9:31pm*

**math *check***

8. Each of two urns contains green balls and red balls. Urn one contains 8 green balls and 12 red balls. Urn two contains 5 green balls and 8 red balls. If a ball is drawn from each urn, what is P(red and red)? A. 79/65 B. 24/65 C. 20/33******? D. 2/13
*Tuesday, June 10, 2014 at 9:19pm*

**math**

A country seen its population grow each year than 1/8 it was last year. At that time the population will have doubled and tripled
*Tuesday, June 10, 2014 at 8:54pm*

**Math **

What is the first quartile and third quartile of the following numbers: 37,42,44, 47,49, 51,53, 54,55, 57,61, 63
*Tuesday, June 10, 2014 at 8:45pm*

**Math**

what is the probability if you had to draw from a bowl twice which had four 1 dollar bills and 1 ten dollar bill.
*Tuesday, June 10, 2014 at 8:34pm*

**math**

Help please A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol remains in the container.
*Tuesday, June 10, 2014 at 8:23pm*

**math (check answer plz)**

7. A bag containing 4 green marbles, 6 red marbles, 14 orange marbles, 5 brown marbles, and 8 blue marbles. You choose a marble, replace it, and choose again. What is P(red, then blue)? A. 48/1369 B. 14/1369 C. 27/37 D. 14/37***?
*Tuesday, June 10, 2014 at 8:14pm*

**Math- urgent**

How do you find the sine, cosine, and tangent of a triangle?
*Tuesday, June 10, 2014 at 8:01pm*

**math (please check answer)**

6. Food Express is running a special promotion in which customers can win a free gallon of milk with their food purchase if there is a star on their receipt. So far, 147 of the first 156 customers have not received a star on their receipts. What is experimental probability of...
*Tuesday, June 10, 2014 at 7:40pm*

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