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October 24, 2014

October 24, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math**

What is the net price factor for trade discounts of 25/15/10? Answer: .57375 Just checking my homework answers
*Monday, May 20, 2013 at 5:45pm*

**Math, Please help!**

I'm having a hard time in math, and every time I start my test my eyes glaze over. Can anyone please help me out? (9m+6)+(-5m-6) (3r^2+7r+1)+(4r^2-8r-2) (6h+1)-(9h+4) (-7w^2-2w-1)-(-5w^2 +3w-2)
*Monday, May 20, 2013 at 5:31pm*

**Math, Please help!**

I'm having a hard time in math, and every time I start my test my eyes glaze over. Can anyone please help me out? (9m+6)+(-5m-6) (3r^2+7r+1)+(4r^2-8r-2) (6h+1)-(9h+4) (-7w^2-2w-1)-(-5w^2 +3w-2)
*Monday, May 20, 2013 at 5:04pm*

**math**

Zaid will travel from Boston to Washington, D.C. If the trip is 600 miles, about how fast will he have to go to get there in 10 1/2 hours?
*Monday, May 20, 2013 at 5:04pm*

**math**

A balloonist leaves the ground and ascends 52 ft into the air, releases air, and descends 27 ft. Then, she turns on the gas burners again and ascends 71 ft. What is her height above the ground?
*Monday, May 20, 2013 at 4:32pm*

**algebra**

The class average on a math test was 75.5 and the standard deviation was 4.2. Find the z-score for a test score of 81
*Monday, May 20, 2013 at 3:58pm*

**math**

. I am thinking of a whole number. If I divide it by 13, then multiply the answer by 12, then subtract 20, and then add 89, I end up with 93. What was my original number?
*Monday, May 20, 2013 at 3:19pm*

**math**

1. nathan is climbing 25ft ladder oeaning against a tree. the foot of the ladder is 15ft from the base of the tree, what is the measure of the angle the ladder makes with ground. 2.erin is flying an plan at 3000 ft high, she sees her house at 32 degrees angle of depression ...
*Monday, May 20, 2013 at 3:06pm*

**Math help needed**

1. x^9 over x^2 (1 point) x^11 x^7 7 x^5 2. H^14 over h^5 (1 point) h^-9 1 over h^9 h^19 h^9 3. 4^4 over 4^6 (1point) –16 16 1/16 –1/16 4. 50 (1 point) 0 5 1 –5 Please I barely understand this but Ima try to put in what I think it is. MY answers: 1. x^11 2. h^19...
*Monday, May 20, 2013 at 2:59pm*

**math**

How many different rectangular prisms can you make with volume 24 cm3? Sketch each prism you find. Label each sketch with the dimensions. How do you know the prisms are different?
*Monday, May 20, 2013 at 2:42pm*

**Math- Precalculus**

Write the expression as the sine, cosine, tangent of an angle (in radians.) (tan(pi/5)-tan(pi/3))/(1+tan(pi/5)tan(pi/3))
*Monday, May 20, 2013 at 2:19pm*

**Math**

Natureland Garden Center buys lawn mowers that list for $679.95 less a 30% trade discount. What is the dollar amount of the trade discount? Answer: 203.99 What is the net price of each Natureland Garden Center lawn mower? Answer: 475.96 Just want to make sure my answer is ...
*Monday, May 20, 2013 at 2:18pm*

**Math 208**

nico is saving money for his college education. He invests some money at 6%, and $1400 less that that amount at 5%. The investments produced a total of $172 interest in 1 yr. how much did he invest at each rate?
*Monday, May 20, 2013 at 1:46pm*

**business math**

three of every seven sales tranactions at dallar discount are credit what percent of the tranaction are not credit sales?(round to nearest tenth)
*Monday, May 20, 2013 at 1:31pm*

**math**

Kathy DesMaris has a rectangular field that is 644 feet wide. One portion of the field is 5x feet long. The other portion of the field is 8y long. Use the distributive property to find an expression for the area of this field.
*Monday, May 20, 2013 at 11:10am*

**Math**

What is the net price factor for trade discounts of 25/15/10? Use the net price factor you found in the previous question to find the net price of a couch listed for $800.
*Monday, May 20, 2013 at 10:03am*

**Math**

Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount?
*Monday, May 20, 2013 at 10:02am*

**Math**

What is the net price of each Natureland Garden Center lawn mower?
*Monday, May 20, 2013 at 10:02am*

**Math**

Natureland Garden Center buys lawn mowers that list for $679.95 less a 30% trade discount. What is the dollar amount of the trade discount?
*Monday, May 20, 2013 at 10:01am*

**Math**

How do you create a stem and leaf plot using data from a bar graph?
*Monday, May 20, 2013 at 10:00am*

**math**

How do i find a fraction between each pair of fractions ex. 1/8 and 1/4
*Monday, May 20, 2013 at 6:54am*

**math**

what is square root of 0.31428 from divison method.
*Monday, May 20, 2013 at 4:46am*

**math**

what is square root of 0.31428 from divison method.
*Monday, May 20, 2013 at 4:44am*

**Math**

solve 3^X=7 giving exact answer to the base 10
*Monday, May 20, 2013 at 3:02am*

**Math**

ABCD is a parallelogram. E is a point on DC extended, such that D and E are on opposite sides of BC. Let AE intersect BC and BD at F and G, respectively. If AG=180 and FG=108, what is EF?
*Monday, May 20, 2013 at 3:00am*

**Math**

It takes pipe A 14 days to fill the fish pond. It takes pipe B 18 days to fill the same pond. Find out how pond it takes both pipes working together to fill the pond
*Monday, May 20, 2013 at 2:46am*

**math**

the americans with disabilities act requires wheelchair ramps no greater than 1 over 12 or 1/12 .whta is the minimum horizontal length 2-foot-high ramp can have?
*Monday, May 20, 2013 at 1:43am*

**Math - PLEASE HELP**

Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =
*Monday, May 20, 2013 at 12:32am*

**math calculus (please help me)**

Solve for t. (Round your answer to two decimal places. (2 − (2.479/35))^7t= 29
*Monday, May 20, 2013 at 12:18am*

**math calculus**

The demand function for a product is given by p = 10,000(1 − (5/5 + e^−0.001x)) where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500.(Round your answers to the nearest ...
*Monday, May 20, 2013 at 12:13am*

**Math**

This is about variables. The problem is d/2.5 - 3.4 = 4.6. What are the steps in finding out what the d is?
*Monday, May 20, 2013 at 12:10am*

**math**

Solve for x sin2x=cos(x+30)
*Sunday, May 19, 2013 at 10:30pm*

**Math**

Evaluate each expression for the given value of the variable 3-y2+fory=5
*Sunday, May 19, 2013 at 10:29pm*

**Math **

Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =
*Sunday, May 19, 2013 at 10:16pm*

**math**

if the pre-image's perimeter was 104 units, what is the images's perimeter
*Sunday, May 19, 2013 at 10:01pm*

**math **

Sorry I posted this question earlier with a error. Can anyone help me solve this now? Can someone help me answer this? If a < 5 the define integral [a, 4] 2.4e^(1.4x)dx = 44 Find the value a Define integral = integral sign a = lower limit 5 = upper limit
*Sunday, May 19, 2013 at 8:38pm*

**math:vertex,axis of symmetry,min/max,**

How do i find the vertex,axis of symmetry,min/max value? a) x^2-9x+y+20 b) f(x)=-5/4x^2+5/28x-5/114 c) f(x)=5x^2+x+4
*Sunday, May 19, 2013 at 8:33pm*

**math **

Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =
*Sunday, May 19, 2013 at 8:26pm*

**Math - Probability**

Annabelle wants to move to a new city. If her chance of getting a job in Montreal is 10%, and her chance of getting a job in Vancouver is 35%: 3a) What is the probability that Annabelle will be offered both jobs? 3b) What is the probability that she will only get one of the jobs?
*Sunday, May 19, 2013 at 8:19pm*

**math **

Can someone help me answer this? If a < 5 the define integral [a, 4] 2.4e^(1.4x)dx = 44 Find the value a Define integral = integral sign a = lower limit 4 = upper limit
*Sunday, May 19, 2013 at 8:05pm*

**math **

Can someone please help? Solve the differential equation dy/dx = 6xy with the condition y(0) = 40 Find the solution to the equation y= ______
*Sunday, May 19, 2013 at 7:27pm*

**Math**

Given f(x)= (x-4)^2-1 What is the vertex of the graph of this function
*Sunday, May 19, 2013 at 6:54pm*

**Math **

Can anyone help me with this? The marginal cost for items in dollars is given by C''(x) = 2x + 30. If the cost of producing 2 items is $220, determine the cost function. What is the cost function? C(x)= _________________
*Sunday, May 19, 2013 at 6:45pm*

**Math log equations/exponential form**

How do i express this to exponential form? a) log√2(w^2 x^3/y^5 z^7) b) log(x^2 y^3 √z-1)
*Sunday, May 19, 2013 at 5:48pm*

**Math**

If the inputs are: 1, 2, 3, 4, 5 and my outputs are: 1, 5, 11, 19, 29, what is the rule?
*Sunday, May 19, 2013 at 5:36pm*

**math**

the sales tax is 6% and the item is $110.00. How much do I add for sales tax?
*Sunday, May 19, 2013 at 5:33pm*

**math**

Solve for x if sin2x=cos(x+30) for x [-180;180]
*Sunday, May 19, 2013 at 4:58pm*

**7TH GRADE MATH**

If the radius of a cylinder is 1.8 meters and its height is 7 meters, the volume of the cylinder is approximately 71.2 cubic meters...true or false I say false because shouldn't it be 71.2 cubic 3? Am I correct?
*Sunday, May 19, 2013 at 4:53pm*

**Math simplify**

How Do I simplify this? a) 4√-27a^3b
*Sunday, May 19, 2013 at 4:04pm*

**Math**

1. Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? 2. Using your answer to the question above, what is the net dollar amount of that rose order?
*Sunday, May 19, 2013 at 3:32pm*

**Math**

1. Natureland Garden Center buys lawn mowers that list for $679.95 less a 30% trade discount. What is the dollar amount of the trade discount? 2. What is the net price of each Natureland Garden Center lawn mower?
*Sunday, May 19, 2013 at 3:30pm*

**math**

Prove that Sin x + tan x / 1+cosx =tan x
*Sunday, May 19, 2013 at 3:16pm*

**math please hurry**

A secret code must consist of three capital letters followed by a digit. Letters cannot be repeated. How many secret codes are possible? A. 140,400 B. 156,000 C. 175,760 D. 358,800
*Sunday, May 19, 2013 at 2:36pm*

**math**

If the width of a rectangle is 6 inches and its perimeters is 38 inches find the length of the rectangle?
*Sunday, May 19, 2013 at 2:08pm*

**math**

Find the mininum product of two numbers whose sum is 55
*Sunday, May 19, 2013 at 2:05pm*

**math**

2 51 45 58 41 44 37 38 40 44 45 40 59 45 44 34 44 43 48 32 38 1.Determine the mean of the data 2.Determine the standard deviation of the data
*Sunday, May 19, 2013 at 1:40pm*

**math**

If it is given tan(A-B) tanA-tanB/-1+tanAtanB and tanP-1/1+tanP=tan195 Find the value of P
*Sunday, May 19, 2013 at 1:30pm*

**math**

1.) Calculate the area of a circle with radius 8.5 inches. . 2.) Calculate the area of a circle with the diameter 15 feet. . 3.) Calculate the area of a circle with radius 9 feet
*Sunday, May 19, 2013 at 1:19pm*

**Scientic Notation**

A family refers to a group of two or more people related by birth, marriage, or adoption who reside together. In 2000, in Country A, the average family net worth was 430,000 and there were about 9.2 x 10 to the seventh power families. Calculate the total family net worth in ...
*Sunday, May 19, 2013 at 12:23pm*

**math**

find the value of x 2^5x/2x=5(√2)^20
*Sunday, May 19, 2013 at 11:29am*

**math**

simplify with steps 5(√32)^3
*Sunday, May 19, 2013 at 11:07am*

**math grade 8**

Hi! I have to sketch 3D shape of the house using triangular prism, rectangular prisms, cube, and cylinder.I have to include measurement calculations with formulas. I already did it all, but someone told me that the SA (surface area) of my house calculated wrong. What I did is...
*Sunday, May 19, 2013 at 9:31am*

**math**

PQ is a vertical tower 95m high, the points R and S are on the same horizontal plane as Q, the angle of elevation of P from R is 35 if QS =155m and Q from RQS=48 1.Calculate the distance of QR 2.Calculate the distance of RS 3.Calculate the are of QRS
*Sunday, May 19, 2013 at 9:15am*

**math**

tan(180-x)sin(360-x)cos90-x)cos(-x)/sin(x-180)cos(450+x)tan(180-x)
*Sunday, May 19, 2013 at 9:06am*

**math**

If 1/cos - cos=a^3 and 1/sin - sin=b^3 Show that tan=a/b
*Sunday, May 19, 2013 at 8:59am*

**math**

At an airport, a flight controller was in a tower 40m above the ground. When she first observed a plane it was at an angle of elevation of 12 (degrees) from her line of sight and flying at a constant altitude (height) The plane had a constant speed of 360km/h Eight seconds ...
*Sunday, May 19, 2013 at 8:06am*

**math master need your help**

what is next number in the sequence 12,6,4,3,2,12/5,... and 1,4,15,40,85,156,259,400,585,... also show the sequence scheme,kindly and ur last answer was wrong as 43 it was 49 for 43^2082
*Sunday, May 19, 2013 at 7:27am*

**math**

General solution Cos^2 +3sin= -3
*Sunday, May 19, 2013 at 6:39am*

**Math**

prove identity Sin2x - sinx/cosx + cos2x= sinx/cosx + 1
*Sunday, May 19, 2013 at 6:23am*

**math**

Let Y be the number of successes in n independent repetitions of a random experiment have probability of success = 1/4. Determine the smallest value of n so that P(1 = Y) = 0.70
*Sunday, May 19, 2013 at 6:08am*

**math**

Let Y be the number of successes in n independent repetitions of a random experiment have probability of success = 1/4. Determine the smallest value of n so that P(1 = Y) = 0.70
*Sunday, May 19, 2013 at 6:08am*

**Math**

Sarah was given a sum of money. She spent the same amount of money each day. She spent 2/7 of her money in 6 days. After another 5 days, she had $20 left. How much money did she have at first.
*Sunday, May 19, 2013 at 5:51am*

**math**

If y = 18x+5 is the regression line of x on y then the value of bxy is what ?
*Sunday, May 19, 2013 at 4:20am*

**math**

If sin57=m Express the following 1. sin 237 2. Cos 33 3. Cos 3 4. Cos 66
*Sunday, May 19, 2013 at 3:41am*

**math**

In surveys about sensitive topics, respondents are sometimes given ways to “hide” their answers from the surveyor. In a survey of taxpayers, one of the questions is, “Did you cheat on your taxes?” To answer, the respondent is asked to toss a coin. If it ...
*Sunday, May 19, 2013 at 3:17am*

**math**

In a population of 10,000 adults, 20% are smokers. A simple random sample of 600 of the adults is drawn. a)The SE of the number of smokers in the sample is closest to 9.45 9.5 9.55 9.6 9.65 9.7 9.75 9.8 9.85 9.9 b)The chance that there are fewer than 115 smokers in the sample ...
*Sunday, May 19, 2013 at 3:16am*

**math**

in a grocery store, butter is sold in “sticks” that are shaped like little bricks. The weights of these sticks are like draws at random with replacement from a population with average 4 ounces and SD 0.2 ounces. The grocery store receives the butter in boxes; each ...
*Sunday, May 19, 2013 at 3:10am*

**math**

The effective rate of interest corresponding to a nominal rate 3%p.a payable half yearly is..?
*Sunday, May 19, 2013 at 1:24am*

**Algebra**

I need help with two math problems. 1. A triangle has vertices (1, 4), (1, 1), and (-3, 1). The triangle is dilated by a scale factor of 2, then translated 5 units up, and then rotated 90 degrees counterclockwise about the origin. What are the vertices of the image of the ...
*Sunday, May 19, 2013 at 12:10am*

**math**

a boy walks 2 miles east from his home ans then turns south and walks an additional 1.5 mile. how far is he from his home?
*Sunday, May 19, 2013 at 12:09am*

**math**

a boy walks 2 miles east from his home ans then turns south and walks an additional 1.5 mile. how far is he from his home?
*Sunday, May 19, 2013 at 12:09am*

**math**

the height of a soccer goal is 0.5 feet more than one third of its width. if the area of this goal is 117ft^2, find the width of the goal
*Sunday, May 19, 2013 at 12:06am*

**math**

400 is a three-digit square number that makes a one-digit square number when its digits are reversed.How many three-digit squares are there which make three -digit squares when their digits are reversed
*Sunday, May 19, 2013 at 12:03am*

**math**

after7rounds is a knockout chess tournament,the winner was announced.How many contestants were there have been in the tournament?
*Saturday, May 18, 2013 at 11:54pm*

**math**

22. Sunshine Honda sold 112 cars this month. If that is 40% greater than last month, how many cars were sold last month? (Points : 2)
*Saturday, May 18, 2013 at 10:52pm*

**Math**

Kylee bought a pack of 12 cookies. Two thirds of the cookies are peanut butter. How many cookies in the pack are peanut butter?
*Saturday, May 18, 2013 at 10:45pm*

**Math**

I posted these questions earlier a lot of times but noone answered them and i really need help so can someone help me. i dont want all the answers, can someone just do like the first 2 so i get an example of how to do them. thanks 1. represent each with an ineqaulity a.) time ...
*Saturday, May 18, 2013 at 9:56pm*

**math**

Three of every seven sales transactions at Dollar Discount are on credit cards. What percent of the transactions are not on credit card sales?
*Saturday, May 18, 2013 at 9:53pm*

**Math 4 questions**

I posted these questions earlier but noone answered them and i really need help so can someone help me. 1. represent each with an ineqaulity a.) time spent on the activity can be at most 13 mins b.) the volume of the container must be a minimum of 1.8 L and a max of 2.5 L 2. ...
*Saturday, May 18, 2013 at 9:28pm*

**Math**

If a number increases from 47 to 70.5, what is the rate of increase?
*Saturday, May 18, 2013 at 8:07pm*

**Math help urgent**

I have a few questions that i need help with so can someone pleese help me thanks:) 1. represent each with an ineqaulity a.) time spent on the activity can be at most 13 mins b.) the volume of the container must be a minimum of 1.8 L and a max of 2.5 L 2. in canada by law any ...
*Saturday, May 18, 2013 at 8:05pm*

**Math**

Sunshine Honda sold 112 cars this month. If that is 40% greater than last month, how many cars were sold last month?
*Saturday, May 18, 2013 at 7:53pm*

**Math**

By what percent is a 100-watt light bulb brighter than a 60-watt light bulb? (Round percent to the nearest tenth.
*Saturday, May 18, 2013 at 7:52pm*

**math**

by what percent os a 100- watt light bulb brighter than a 60 watt light bulb
*Saturday, May 18, 2013 at 7:52pm*

**Math**

After a 15% pay raise, Scott Walker now earns $27,600. What was his salary before the raise?
*Saturday, May 18, 2013 at 7:52pm*

**Math**

A letter carrier can deliver mail to 112 homes per hour by walking and 168 homes per hour by driving. By what percent is productivity increased by driving?
*Saturday, May 18, 2013 at 7:51pm*

**Math**

Convert 33/4 to a percent.
*Saturday, May 18, 2013 at 7:50pm*

**math**

If the bearing fron H to G is 098 degrees, what is the bearing of G from H
*Saturday, May 18, 2013 at 7:43pm*

**math**

Solve the equation 8 cos^2 X -2 =0 given that 180< or equal to X <or equal to 360 degrees.
*Saturday, May 18, 2013 at 7:41pm*

**math**

Triangle DEF is such that DF=8cm,EF=5.5cm and its area is 11 root2 cm^2. Find angle EFD.
*Saturday, May 18, 2013 at 7:35pm*

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