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July 30, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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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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