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March 4, 2015

March 4, 2015

**Branches of Math**

**Recent Math Questions**

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**math **

I'm doing my math hw, what does the sign ' mean for sets? Thanks
*Tuesday, February 17, 2015 at 3:38pm*

**math**

The size of an interior angle of a regular polygon is 3x° while its exterior angle is (x- 20)°. Find the number of sides of the polygon
*Tuesday, February 17, 2015 at 3:02pm*

**math**

35. Aaron wants to find an function that relates the price of a pizza to its size. He knows that this function need s to be non- linear. Which function below should he use? A. y=4piex B. y=pie(x-3) C. y=pie(x-3)^2 D. y=pie(x-3)^2+3(x+7)
*Tuesday, February 17, 2015 at 2:52pm*

**math**

A square brass plate is 2 mm thick and has a mass of 1.05 kg. The density of the brass is 8.4 g/cm3. Calculate the length of the plate in centimeters
*Tuesday, February 17, 2015 at 2:50pm*

**math**

If a city has an atmospheric pressure of 12.27 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round your answer to the nearest foot.)
*Tuesday, February 17, 2015 at 2:26pm*

**math**

how do i do this equation ? -158=-2x+ 2(7x -7) . thank you
*Tuesday, February 17, 2015 at 1:30pm*

**math**

every container of fruit salad contains 1/3 of an apple. how many whole apples are there in 6 containers or fruit salad what should i do
*Tuesday, February 17, 2015 at 10:45am*

**math**

Show that the series 1 + 2x/5 + 3x^2/25 + 4x^3/125 + ....is convergent if -5<x<5 and for no other value of x.
*Tuesday, February 17, 2015 at 2:02am*

**Math**

Frank paid very well finance rate of 1.5% on the first $500 and 1% at any amount above $500 how much did he pay at the unpaid balance was $741.23
*Tuesday, February 17, 2015 at 1:26am*

**Math**

Identify the geometric figure that each object represents. _____1. Tip of the hair _____2. Chalkboard _____3. Ceiling _____4. Grain of sand _____5. Mole _____6. Flaslight _____7.String _____8.Wall _____9.Tip of a pen _____10.Edge of a box
*Tuesday, February 17, 2015 at 1:03am*

**Math**

I am asked to graph a triangle with the vertices (-3, 2), (5, 6), and (6, -4) after performing a dilation about the origin of scale factor 4. What does "about the origin" mean? Is this the same as just multiplying the ordered pairs by 4? Are the new vertices (-12, 8...
*Tuesday, February 17, 2015 at 1:00am*

**math**

A particle moves along straight line such that its displacement S meters from a given point is S = t^3 – 5t^2 + 4 whee t is time in seconds. Find (a) The displacement of particle at t = 5 (b) The velocity of the particle when t = 5 (c) The values of t when the particle ...
*Tuesday, February 17, 2015 at 12:26am*

**Math**

Three boxes each contain a number of billiard balls. One box contains only even-numbered balls, one box contains only odd numbered billiard balls, and the third box contains a mixture of odd and even numbered balls. All the boxes are mislabeled. By selecting one ball from only...
*Tuesday, February 17, 2015 at 12:20am*

**Math**

A 6 story building has stairs between equally spaced doors. How many times higher is the climb from the first to the sixth floor than the climb from the first to the third floor?
*Monday, February 16, 2015 at 11:57pm*

**math**

The perimeter of a rectangular blanket is 18 feet.What could be it's length and width?
*Monday, February 16, 2015 at 11:43pm*

**math**

Evaluate 6log2^3 √64+ 10log3^5 √243
*Monday, February 16, 2015 at 11:35pm*

**Math**

X. 0, 1, 2, 3 Y. -6, -5, -2, 3 A. Y=x-6 B. y = x-4 C. Y =x^2-3 *********** D. Y = x^2-6 Write a quadratic function rule for the given table X. -1 0 1 2 Y. 5 4 5 8 A. Y = x+4 B. Y=x^2+4 ********* C. Y = x^2+6 D. Y = x+6 Please help I'm confused
*Monday, February 16, 2015 at 11:21pm*

**math**

When a child breaks open her piggy bank, she finds a total of 76 coins, consisting of nickels, dimes, and quarters. The total value of the coins is $9. If the nickels were dimes, and the dimes were nickels, the value of the coins would be $8. How many nickels, dimes, and ...
*Monday, February 16, 2015 at 11:14pm*

**math**

The owner of a home decorating shop wants to mix dried rose petals selling for $6 per pound, dried lavender selling for $4 per pound, and buckwheat hulls selling for $3 per pound to get 10 pounds of a mixture that would sell for $3.70 per pound. She wants to use twice as many ...
*Monday, February 16, 2015 at 11:07pm*

**math**

All prime numbers less than ten are arranged in descending order to form a Number. (a) Write down the number formed 2, 3, 5, 7 (b) State the total value of the second digit in the number formed in (a) above
*Monday, February 16, 2015 at 11:04pm*

**math**

The radius of a circular field is 31.5 meters.what is its circumference ?
*Monday, February 16, 2015 at 10:29pm*

**math**

Jamar is trying to fit his encyclopedia on a shelf. Each book is 2 1/4 inch thick. The shelf is 2 1/4 feet wide. How many books will Jamar be able to fit
*Monday, February 16, 2015 at 10:03pm*

**math**

a sample consists of the following n =6 scores: 2, 7, 4, 6, 4, and 7 compute the mean and standard deviation for the sample
*Monday, February 16, 2015 at 9:18pm*

**math**

the cost of admission for adults is $12 and children under 12 are charged $8.00. If 20% of the total ticket sales were for children how much more money could they have made if all the tickets had been sold to adults?
*Monday, February 16, 2015 at 7:35pm*

**Math**

The following set of numbers respresents the average weekly scores of 9 preschoolers on a verbal aggression scale. 19.1, 18.9, 33.5, 18.7, 28.1, 31.5, 20.3, 30.1, 17.9 Consider this to be the entire population of scores. What is the standard deviation? I already have the mean ...
*Monday, February 16, 2015 at 7:33pm*

**Business Math**

Lance Lopes went to his bank to find out how long it will take for $1,700 to amount to $2,900 at 10% simple interest. Can you solve Lance’s problem?
*Monday, February 16, 2015 at 6:53pm*

**Business Math**

He took out a $100.00 loan payable in two weeks at $105.50. What is the percent of interest paid on this loan?
*Monday, February 16, 2015 at 6:01pm*

**Math**

Lana travelled 50.40 kilometers in 84 minutes. Write an equation that can be used to express the relationship between the total kilometers travelled(t) and the minutes(m) it took. The answer I got was 1.66666... By dividing 50.4 from 84. My friend told me the answer was 0.60 ...
*Monday, February 16, 2015 at 5:39pm*

**math**

I'm just having trouble trying to see the independent and dependant variables. I have to determine whether the following are functions: The relation between distance and time if someone walks 5km/h. I think distance would be the independent variable because you can go ...
*Monday, February 16, 2015 at 4:53pm*

**math(urgent answer pls)**

Show that the series 1 + 2x/5 + 3x^2/25 + 4x^3/125 + ....is convergent if -5<x<5 and for no other value of x.
*Monday, February 16, 2015 at 3:14pm*

**math**

the track cpach records the number of laps the team runs each day fr a week in the table below. if the team rus at most 10 laps each day, then they have to practice saturday. use the inequalty l is less than of equal to where l represents the number of laps the teams run, to ...
*Monday, February 16, 2015 at 2:17pm*

**math**

the local lions club sold raffle tickets for a new golf caqrt. the sales for each week are given below. if more tha 250 tickets are sold, then the lions club raised enough for the golf cart. use the inequality t>250, where t representrs the number of tickets sold, to ...
*Monday, February 16, 2015 at 2:10pm*

**math**

Given that sin (x +30)° = cos 2x° for 0°, 0° ≤ x ≤ 90° Find the value x. Hence find the value of cos^2 3x°.
*Monday, February 16, 2015 at 1:54pm*

**math**

m-n divided by 4. use m =5 and n = 8. please help. ty
*Monday, February 16, 2015 at 11:25am*

**math**

what is 1 plus 1
*Monday, February 16, 2015 at 10:33am*

**MAth**

Jim bought a pen and a calculator. He paid the cashier $50 and received $20.45 change. If the pen cost $4.50, how much did the calculator cost?
*Monday, February 16, 2015 at 10:19am*

**math**

the length and breadth of the room were measured and area calculated as 600sq.m. (l+B=50) later found the meter rod that had used as an error 5cm i.e actual length of the rod ws 95cm instead of 100cm. find the correct area of the room
*Monday, February 16, 2015 at 9:32am*

**Math**

If someone takes out a Reverse Mortgage of $200,000 at 6.8% Interest how much will they owe in five years time and ten years time
*Monday, February 16, 2015 at 2:20am*

**math**

integrate Cos^7(2x)
*Monday, February 16, 2015 at 1:56am*

**math**

Straub's Bakery makes 200 Danish cakes that cost $2.70 each. Straub's needs a 66% markup on cost and normally discards 10% of what it makes. At what price should Straub's sell the Danish cakes?
*Monday, February 16, 2015 at 1:08am*

**Math**

a rectangular room on a blueprints is 2 inches wide and 5 inches longif the scale of the blueprints to the actual room is 1:72,what is the width of the room?
*Sunday, February 15, 2015 at 10:36pm*

**Math**

yesterday, molly lunch cost $9.80 and she left a $1.49 tip, today molly lunch cost $12.60 if she tips at the same rate that she did yesterday how much of a tip should molly leave
*Sunday, February 15, 2015 at 10:16pm*

**math**

how many inches in a foot
*Sunday, February 15, 2015 at 9:02pm*

**math analysis**

verify tan x/2=secx /secxcscx+cscx
*Sunday, February 15, 2015 at 8:38pm*

**math**

The area of a rhombus is 60cm^2. Given that one of its diagonals is 15 cm long, calculate the perimeter of the rhombus.
*Sunday, February 15, 2015 at 7:47pm*

**Math**

6^7 x 6^11 divided 6^8 x 6^2
*Sunday, February 15, 2015 at 7:31pm*

**Math**

3^12 divided 3x3^6
*Sunday, February 15, 2015 at 6:28pm*

**Math**

A rectangle wheat field is 10^5 m long as 10^5 m wide. What is the area?
*Sunday, February 15, 2015 at 6:10pm*

**math**

How do I simplify this expression -2x +11 +6x . Thank you for help
*Sunday, February 15, 2015 at 5:34pm*

**Math**

Hi, thanks for help in advance. Using the Equation: f(w) = 10/w - 0.77ln(w) – 3.2 How do i use Newton-Raphson iterative to find the required value of w correct to 3 significant figures, starting from w0 = 3. Thanks
*Sunday, February 15, 2015 at 5:32pm*

**math**

Solve the inequality = 3- 2x ˂ x ¡Ü 2x + 5 and show the solution on the number line
*Sunday, February 15, 2015 at 5:12pm*

**Math**

Daniel has 21 coins. All of them are either quarters or dimes. Altogether, he has $3.45. How many of each type of coin does he have?
*Sunday, February 15, 2015 at 4:23pm*

**MATH**

FROM NOON TO 8 PM, THE TEMERATURE DROPPED 12.8 DEGREES. WHAT WAS THE HOURLY CHANGE IN TEMERATURE DURING THIS TIME??
*Sunday, February 15, 2015 at 3:55pm*

**math(urgent)**

Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) +.... Answer this Question
*Sunday, February 15, 2015 at 3:40pm*

**Business math**

On sept 14 Jennifer went to bank to borrow 4400 at 10.25% interest Jennifer plans to repay the loan on january 27 assume the loan is on ordinary interest a. what interest will Jennifer owe on january 27?. Interest b. what is the total amount jennifer must repay at maturity? ...
*Sunday, February 15, 2015 at 3:01pm*

**math**

A rally car traveled for 2 hours 40 minutes at an average speed of 120 km/h. The car consumes an average of 1 litre of fuel for every 4 kilometers. A litre of the fuel costs $ 59. Calculate the amount of money spent on fuel
*Sunday, February 15, 2015 at 1:58pm*

**math**

given geometric series is 256+p+64-32 determine the value of p?
*Sunday, February 15, 2015 at 1:44pm*

**math**

If a United States dollar is worth $1.41 in Canadian money, how much is $100 in Canadian money worth in the united state money, to the nearest cent
*Sunday, February 15, 2015 at 12:41pm*

**math**

If a United States dollar is worth $1.41 in Canadian money, how much is $100 in Canadian money worth in the united state money, to the nearest cent
*Sunday, February 15, 2015 at 12:36pm*

**math**

21.Faith solves the equation 3(7x+4)=21x+4. How many solutions does she find? A. Infinitely many solutions B. 2 solutions C. 1 solution D. 0 solutions
*Sunday, February 15, 2015 at 12:32pm*

**math**

Joe drank 4 liters of water on Monday and 4 deciliters of water on Tuesday. How much more water did he drink on Monday than on Tuesday?
*Sunday, February 15, 2015 at 11:21am*

**math**

John was the first US astronaut to orbit Earth. His 3 orbit flight took 4 hours and 55 minutes. His spacecraft took off at 7:15 am. What time was John flight complete?
*Sunday, February 15, 2015 at 11:13am*

**Math**

A drawer contains 20 black socks and 20 white socks. If the light is off and you reach into the draw to get your socks, what is the minimum number of socks you must pull out in order to be sure that you have a matching pair?
*Sunday, February 15, 2015 at 10:28am*

**MATH**

HOW CAN I ANSWER IF THE QUESTION WAS DIFFICULTÉ
*Sunday, February 15, 2015 at 10:04am*

**math help**

The perimeter of triangle RXA is 39, PX=49 and AP=9.Find RX and RA. I think it's under triangle bisector theorem. Help me answer this guys. Thanks.
*Sunday, February 15, 2015 at 8:40am*

**Math**

Using: r(t)=15+e*0.04tsin(pi*t/3) "Explain why it takes longer to reach maximum heigh of the first ride but will exceed it." Do i have to use this equation or the previous one of: s(t) = 15+6sin(Pi*t/3). to explain why? Also, to find the distance off the ground as ...
*Sunday, February 15, 2015 at 8:12am*

**math**

The dissipation of heat through a composite material of width w centimetres can be modelled by the function f(w) = 10/w - 0.77ln(w) – 3.2 You are required to find the width of material that will prevent any heat dissipation. - I understand f(w)= 0, but I'm unsure of ...
*Sunday, February 15, 2015 at 7:27am*

**math**

The perimeter of triangle RXA is 39, PX=49 and AP=9.Find RX and RA.
*Sunday, February 15, 2015 at 6:11am*

**math**

A liquid spray of mass 384 g is packed in a cylindrical container of internal radius 3.2cm. Given that the density of the liquid is 0.6g/cm3, calculate to 2 decimal places the height of liquid in the container.
*Sunday, February 15, 2015 at 12:36am*

**math**

Given that log4 = 0.6021 and log6 = 0.7782, without using mathematical tables or calculate, evaluate log0.096.
*Sunday, February 15, 2015 at 12:06am*

**math**

A rectangular and two circular cut-outs of metal sheet of negligible thickness are used to make a closed cylinder. The rectangular cut-out ha a height of 18 cm. Each circular cut-out has a radius of 5.2 cm. Calculate in terms of area of π, the surface area of the cylinder.
*Saturday, February 14, 2015 at 11:44pm*

**Math**

So far john has run 1/4 of the way to school and walked 3/8 of the way.What fraction of the distance to school does john have left?
*Saturday, February 14, 2015 at 10:03pm*

**math**

find the dimensions of the subspaces of R^2 spanned by the vectors (1,3), (1,-1)?
*Saturday, February 14, 2015 at 9:33pm*

**math**

For his next trick, a magician will draw a “royal flush” – 10, Jack, Queen, King and Ace of the same suit – in the exact order without replacement. If there are no magic tricks and just pure randomness, what is the probability that he'll succeed?
*Saturday, February 14, 2015 at 9:18pm*

**math**

A scale drawing of a city has a scale of 3 inches : 400 feet. What is the actual length of each foot in the drawing? Show the work.
*Saturday, February 14, 2015 at 2:34pm*

**Math**

Train A leaves Tigerville at 9 am traveling east at 85 mph. Train B leaves Liontown at 9:20am travelling west at 60 mph on the exact same tracks. Tigerville and liontown are 154 miles apart. At what time will the trains meet?
*Saturday, February 14, 2015 at 1:43pm*

**Math**

The dissipation of heat through a composite material of width w centimetres can be modelled by the function f(w)=10/w-0.77ln(w)–3.2 You are required to find the width of material that will prevent any heat dissipation. State what equation you will need to solve?
*Saturday, February 14, 2015 at 9:52am*

**math**

At Sunny;s Smoothies 2/5 of the smoothies are made with citrus fruit and the rest are made with berries.1/8 of the berry smoothies contain bananas.What fraction of all the smoothies are berry banana?
*Saturday, February 14, 2015 at 9:29am*

**Math**

Find all solutions for the complex numbers: a) z^4 = 9i -46 b) 8*sqrt3 / z^4 +8 =-i
*Saturday, February 14, 2015 at 6:04am*

**Math**

Find all solutions for the complex numbers: a) z^4 = 9i -46 b) 8*sqrt3 / z^4 +8 =+i
*Saturday, February 14, 2015 at 6:04am*

**Math**

Hello, I can not solve problem from analytical geometry. If you can help me to find out what is wrong in my procedure and show me a better one I would be really gratefull. There are given 3 points A(2,2,3), B (6,3,0), C(3,-1,-1). On the x ax-axis lies point X, find coordinates...
*Saturday, February 14, 2015 at 4:25am*

**math**

on a test of 50 question jill answered 47 correctly.how many percent did she answered correctly
*Friday, February 13, 2015 at 11:00pm*

**math**

The annual interest rate for a customer’s loan of $425 is 15.75%. What is the total dollar amount to be repaid on the loan, including principle and interest, for the entire year?
*Friday, February 13, 2015 at 10:31pm*

**math calculus**

what is the difference between the function 2^x and (1/2)^x?
*Friday, February 13, 2015 at 8:49pm*

**math**

The length of a rectangle is increased by 50%. By what percent would the width be increased to keep the same area? a.43/3 b.45/4 c.33-1/3 d.31-1/3
*Friday, February 13, 2015 at 8:47pm*

**math**

Cristy’s age 15 yrs ago equals the sum of 2/9 of her age 15 yrs hence and 1/6 of her age ago. How old is she now? a.27 b.28 c.29 d.30
*Friday, February 13, 2015 at 8:45pm*

**math**

If a man was x years old y years ago, how old is z years old from now? a.35 b.36 c.38 d.None
*Friday, February 13, 2015 at 8:44pm*

**math**

A gardener is making a triangular planting, with 35 plants in the front row, 31 in the second row, 27 in the third row and so on. If the pattern is consistent how many plant are there be in the last row?
*Friday, February 13, 2015 at 8:43pm*

**math**

The area of rectangle is 192 sq. meters its diagonal is 20 in. find its width and length?
*Friday, February 13, 2015 at 8:42pm*

**math**

Find the solution set 2x + [3x-(4x-5) ]=x/4-2 a.28/3 b.-28/3 c.9 d.-9
*Friday, February 13, 2015 at 8:41pm*

**math**

Simplify [1+y/(x+y)]/ [1-3y2/(x2-y2)] a.x/y-x b.y/x-y c.x-y/2-2x d.x-y/x-2y
*Friday, February 13, 2015 at 8:40pm*

**math**

I am a positive integer less that 30, two more than my value is a mulitple of 6 the sum of my digits is a mulitple of 7 find this number
*Friday, February 13, 2015 at 8:34pm*

**Math Check**

I need someone to please check this for me. Thanks! :) Question: Tonto Pagalies (brother to vaporized racer Teento), an observer at Bindy Bend, is 14285’ from Desert Plain. He knows that there is a right angle between the lines of sight from Bindy Bend to Desert Plain and...
*Friday, February 13, 2015 at 8:33pm*

**math**

Tony is on his way home in his car. He has driven 12 miles so far, which is three-fourths of the way home. What is the total length of his drive?
*Friday, February 13, 2015 at 8:33pm*

**Math **

I am not sure how to figure out the missing lengths of a pentomino? Here are the lengths. 4cm. 3cm. 12cm and the missing one is in the middle
*Friday, February 13, 2015 at 8:20pm*

**math**

how do I translate this sentence into an equation. 51 is the product of Malik's height and 3 . Use the variable m to represent Malik's height
*Friday, February 13, 2015 at 6:29pm*

**math**

10 ft/Min = ______ mi/h
*Friday, February 13, 2015 at 6:04pm*

**math**

The distance meters from a fixed point O, covered by a particle after t seconds given by the equation; S = t3 – 6t2 + 9t + 5. (a) Calculate the gradient to the curve at t = 0.5 seconds (b) Determine the values of sat the maximum and minimum turning points of the curve
*Friday, February 13, 2015 at 3:27pm*

**math**

what is 66 2/3 of 39?
*Friday, February 13, 2015 at 1:47pm*

**math**

sales tax rate of 5%, what is the total cost if paid 456.60/
*Friday, February 13, 2015 at 1:45pm*

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