Friday
August 26, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math
a girl walks 800 m on a bearing of 129 degrees.calculate how far east and south she is from her starting point.
Monday, May 16, 2016 by joseph

Math
Y^2+9=-9y
Monday, May 16, 2016 by Anonymous

Math
concrete is to be mixed using cement and sand into the ratio 2:5. how much sand will be required to mix with 96 pounds of cement? use proportion to solve
Monday, May 16, 2016 by Hailey

Math
If a room is 12ft by 16ft how many 12 inch by 12 inch tiles do I need to cover it
Monday, May 16, 2016 by Jason

Math(Reiny Could You Help?)
The graph of the function g(x) has the same shape and direction of opening as the graph of f(x)= 3(x-2)^2+9. The graph of g(x) has a vertex that is 2 units to the right and 5 units down from the vertex of the graph of f(x). A.) Determine an equation of the function g(x) B.) ...
Monday, May 16, 2016 by Heaven

math
show that the following point are the vertical of a square(-2,4) (2,0) (2,8) and (6,-4),find AB, CD, AC, BD, AD
Monday, May 16, 2016 by odukoya

Math
Is pancake + waffle = a paffle?
Monday, May 16, 2016 by Awesome

Math
Is this an example of two-variable data? Data Management Marks: 74,81,66,53,92,45,80 Grade 12 Average: 77,87,68,67,85,55,76 i think it is..
Monday, May 16, 2016 by Rose

Math
1. Use formulas to find the lateral area and surface area of the given prism. Round your nearest answer to the nearest whole number. use the large 19x6 m rectangles on the top and bottom as the bases. Left corner is 2m, bottom length is 19m, and right face is 6m. If you google...
Monday, May 16, 2016 by Tim

Math
At 2:30 p.m. the thermometer outside of sharlene's window read 44.c. it had risen 3. between noon and 2:30 p.m and 12. between 7:00 a.m and noon. What was the temperature at 7:00 a.m
Monday, May 16, 2016 by Olivia

math
a room measures 22 feet by 28 feet. They are covering the floor with square tiles that measure 1 foot on a side and cost ​$0.89 each. How much will they spend on the​ tile?
Monday, May 16, 2016 by Natalie

Math
The ratio of golf balls to tennis balls in the coach's bag is 20 to 5. If there are 100 golf balls in the bag, how many tennis balls are in the bag?
Monday, May 16, 2016 by Elisa

math
which formula should be used to find the area of the composite shape 1.a(a=lw+bh) 2.b(a=2lw) 3.c(a=1/2bh=lw) 4.d(a=1/2bh=lw)
Monday, May 16, 2016 by darkwolfy

Math
On the reality TV show Last Man Standing, a package is thrown from a plane to the ocean below. The contestants must swim to the package to receive the "free pass" located inside the package. The path that the package follows can be modelled by the quadratic function ...
Monday, May 16, 2016 by Heaven

Math (Trig)
Convert the Cartesian coordinate (-1,2) to polar coordinates, 0≤θ<2π I know r is sqrt(5) but how would I find theta between 0 and 2pi? Thanks in advance!
Monday, May 16, 2016 by Giovanni

Mech. Engr./Dynamics/Physics/Math
A ball is dropped with a velocity v0 and an angle alpha with the vertical onto the top step of a flight of stairs consisting of 10 steps. The ball rebounds and bounces down the steps where the coefficient of restitution between ball and step is e=0.6. The friction between ball...
Monday, May 16, 2016 by Jay

math
Carol wants to make a quilt using a scale of 1.5 inches = 2 feet. Her scale drawing is 7.5 inches by 10.5 inches. What is the area of the actual quilt?
Monday, May 16, 2016 by jakira

Math
A 6m ladder is leaning against a wall. The base of the ladder is 1.5m from the wall. Calculate the angle (to the nearest tenth) formed between the ladder and the ground.
Monday, May 16, 2016 by anonymous

Math
I am driving 65 miles per hour. I must drive 520 miles total. I have already driven 195 miles, how long will it take me to reach my destination. Use this equation to represent the number of hours to reach my destination? 65h + 195 = 520. A.2 hours B.5 hours C.15 hours D.22 hours
Monday, May 16, 2016 by Tonya

Math
33. A bag of marbles contains 5 red, 3 blue, 2 green, and 2 yellow marbles. What is the probability that you choose a red marble and then a green marble assuming you replace the first marble? A) 1/24 B) 5/72 C) 5/66 D) 5/6
Monday, May 16, 2016 by Kyle

Math
Harry is a dog walker and he charges 15 dollars to come to my house, 2 dollars per mile walked. He charged me 19 dollars. Which equation could I use to determine howxfar he walked my dog. A. 2m + 5 = 19 B.19 + 15 = 2m C.19 + 2m =15 D.2m + 15 =15
Monday, May 16, 2016 by Tonya

math
Find the sum of the first one thousand positive integers. Explain how you arrived at your result. Now explain how to find the sum of the first n positive integers, where n is any positive integer, without adding a long list of positive integers by hand and without using a ...
Monday, May 16, 2016 by Anonymous

math
60 months × $425.00= $2550.00 = what's my iterest rate? =
Monday, May 16, 2016 by dumb dumb

math
angle PQR and angle TQV are vertical angles. The measure of the two angles have a sum of 100*. Write and solve an equation to find x, the measure of angle TQV.
Monday, May 16, 2016 by Mary

math
Suppose 10% of the flights arriving at an airport arrive early, 60% arrive on time, and 30% arrive late. Valerie use the random number table to find the experimental probability that of 5 flights, at least 2 will arrive late. The digit 0 represents flights arriving early. The ...
Monday, May 16, 2016 by helpppppp

Math
An ant is on top of a tree 23 meters tall, directly above her home, which is 0.3 meters below the ground. What is an expression that represents the difference in elevation between the ant and her home?
Monday, May 16, 2016 by Aubrey T.

Math calculation
A stock bottle contains 2.5 L of solution. How many 2 oz bottle can be filled using the stock solution?
Monday, May 16, 2016 by Samantha

math help
In 2011 a spots club offers its members three types of activities: volleyball basketball and tennis. Each member practices only one of the three activities:30% of the members practice volleyball, 20% of the members practice basketball, the rest of the members practice tennis. ...
Monday, May 16, 2016 by angy

math
how many natural numbers have 20 as their digit's quotient and 11 as their digit's number??
Monday, May 16, 2016 by selma

Math
The number is 13 less than the other. The other number is three fourths the first. What is the smaller number?
Monday, May 16, 2016 by Anonymous

Math
2.4 (n - 1)= 12
Monday, May 16, 2016 by Mark

Math
An initial investment in an account in which interest is compounded repeatedly is $813. If the time doubles the amount in 9 1/4 years, what's the annual rate going to end up being?
Monday, May 16, 2016 by Amber

math
if a plane flies at 285/h, how long will it take to fly from morgenhof to Neenthlinghof
Monday, May 16, 2016 by nompilo

Math
the height, in metres, of a nail in a water wheel above the surface of the water , as a function of time, can be modelled by the function h(t) = -4sin pie/4 (t-1)+2.5, where t is the time in seconds. During what periods of time is the nail below the water in the first 24s that...
Monday, May 16, 2016 by ...

math
Farah, Kate and Jane have managed their savings well. The sum of Farah and Kate's savings is $1548. Farah and Jane's savings sum up to $1842. The ratio of Kate to Jane's savings is 4 : 7. How much has Farah saved?
Monday, May 16, 2016 by Anonymous

Math
Work out, give your answer as a mixed number in its lowest form 6.3 * 1.2 6.3 *1.2 75.6
Monday, May 16, 2016 by Innocent Musa

Math
If you make $18 a hour and only work 15 hours a week, how much do you make a month?
Monday, May 16, 2016 by Amy

math
Using the formula, compute the true annual interest rate. Loan amount = $9,500 Monthly payments = $227.50 Time of loan contract = 5 years True annual interest rate (to the nearest tenth) = _____.
Monday, May 16, 2016 by angel

Math Help
1.) Find the arc length y=2/3x ^3/2 + 2 over (14,16) 2.) Find the arc length y=8x^3/2+7 over (0,6)
Sunday, May 15, 2016 by Erica

Mech. Engr./Dynamics/Physics/Math
A ball is dropped with a velocity v0 and an angle alpha with the vertical onto the top step of a flight of stairs consisting of 10 steps. The ball rebounds and bounces down the steps where the coefficient of restitution between ball and step is e=0.6. The friction between ball...
Sunday, May 15, 2016 by Jay

Math
5x - 3 = 7x + 11 x=-4 3w -4 = w+8 w =6 Please check. Thanks
Sunday, May 15, 2016 by David

Math
1/3 (b-4) =1
Sunday, May 15, 2016 by Lexi

Math
I got 21 years and it was wrong. Can you help me solve this problem? sometime ago, julie purchased 11 acres of land costing $15,590. Today, that land is valued at $55,433. How long had she owned this land if the price of the land has been increased at 5% per year?
Sunday, May 15, 2016 by Anonymous

math
The circle below has a radius of 17y meters. Find the exact area and simplify the expression. Use pi for π.(A=πr^2) The area is..
Sunday, May 15, 2016 by Duran

Math
If a camera and a lock weigh 330 grams together. Also the same camera and a crown together weighs 670 grams. Also the weight of a crown and a lock is 470 grams. What is the weight of each individual object?
Sunday, May 15, 2016 by Matt

Math
At the Highland Hotel 578 of the 850 employees work directly with the guess. What percent of employees work directly with the guests? How do I figure it out?
Sunday, May 15, 2016 by Auntie

Math
Four friends went out to dinner.The total bill was 97.38 one of your friends has a coupon for 35 percent off and the group left a 18precent tip if each person payed the same amount how much did each person pay?
Sunday, May 15, 2016 by Randomkod

Math
Find the exponential function that passes through (0,5) and (4, 1/2). Formula is y=Ce^kx
Sunday, May 15, 2016 by Erica

Math
Mr.Marshal spent his salary of $8400 in the following manner: Rental.........1/5 Food...........1/10 Bank...........1/4 Miscellaneous.....the remainder. Calculate the following: (A)what fraction of the money was spent on MISCELLANEOUS. (B)How much did he spent on rental. (C)if...
Sunday, May 15, 2016 by Josiah

math
Dina and Masha start out on a bike path 10 km long at the same time. When Dina reaches the end of the 10 km, Masha still has 2 km left to bike. If Dina’s biking speed is 5 km/h, find Masha’s biking speed.
Sunday, May 15, 2016 by elizabeth

Math
Farmer Jimmy harvested rep lines.He used 1/3 of this for himself and gave one-sister of the remainder to his brother.He sold the test.calculate: (A)how many limes he kept. (B)how many limes he gave his brother. (C)how many limes he sold.
Sunday, May 15, 2016 by Josiah

Math
Jerry spent 1/5 of his allowance on a book and 3/8 of the remainder of his allowance for a pen.jerry remained with $12.00.calculate: (A)jerry's allowance. (B)the cost of the book. (C)the cost of the pen.
Sunday, May 15, 2016 by Josiah

Math
Cesar's sixth- grade class sorted books in the library. The class sorted 45 books in 90 minutes. Write an equivalent ratio to find how long it would take to sort 120 books.
Sunday, May 15, 2016 by Milo

math NEED HELP
simplify 4^3 times 4^4 divided by 4^9 help please!!
Sunday, May 15, 2016 by casdean

math
An ancient Korean drinking game involves a 14-sided die. The players roll the die in turn and must submit to whatever humiliation is written on the up-face: something like "Keep still when tickled on face." Six of the 14 faces are squares. Let's call them A, B, C...
Sunday, May 15, 2016 by AnonYmous

Math
A child's. Dose for cefadroxil is 30mg/kg body weight once a day for 14 days.what is the smallest bottle that will provide. Enough medication to last 14 days. If child weighs 44 lbs.
Sunday, May 15, 2016 by Denise

math
I am currently dealing with the Richter scale and I have this formula 200=0.02*10^1.5*6.4/0.02*10^1.5*x I just cannot get x,plz help
Sunday, May 15, 2016 by Maya

Math
How 12in patio brick will fit a 13ft long 7ft wide space
Sunday, May 15, 2016 by Mark

Math
You start a search for a buried object by marking the center of a filed as (0,0), with coordinates giving distances in yards. Coordinates to the north or east are positive and coordinates to the south or west are negative. You find nothing at (-12,8), so you try a likely-...
Sunday, May 15, 2016 by Please Help

Math
What's nine minus three divided by a third plus one
Sunday, May 15, 2016 by Joe

math
You want to cover a trapezoidal box with paper. You have a sheet of paper that is 1m by 500cm. What is the size box that can be made with minimal wastage? plz plz plz help me with this.. i don't understand how to do this
Sunday, May 15, 2016 by Emily

math
Five workers are supposed to paste expiration date on each can.A,who paste 30% of the cans,fail to paste the expiration date once in every 300cans.B,who paste 15%,fail to paste the expiration date once in every 250cans.C,who paste 35% ,fail to paste the expiration date once in...
Sunday, May 15, 2016 by koro

math
If the angles of a quadrilateral are x,x+10,x+20 and x+30 degrees find the value of each
Sunday, May 15, 2016 by mary

Math
What the relationship that happens between the increase of the length of the side and area or perimeter
Sunday, May 15, 2016 by Sandy

Math Probability problem
Tony has 3 jackets and 2 shirts and 2 pants. He wants to wear three items every day. How many outfits he can choose of the same clues and/or of different clues
Sunday, May 15, 2016 by Lara

Math
Johnie has 3 Jackets (J1, J2 and J3) and 2 shirts (S1, S2) and 2 Trousers (T1, T2). He wants to wear 3 pieces of clothes daily. what should he choose if a) same clues or b) different clues
Sunday, May 15, 2016 by Lara

math
The company will use machine A,B,C,D with probabilities 0.23,0.45,0.19 and 0.13 respectively.From past experience it is known that the probability of defective tablet produced by the machine are 0.11,0.2,0.07 and 0.05 respectively.Suppose a defective tablet is produced:...
Sunday, May 15, 2016 by koro

math
I am a two digits number.my first number is equal to 7 and than 13. The second digit is number between 1 and 9 .what is the number
Sunday, May 15, 2016 by Anonymous

math
4.1 the diagram below shows part of the graph of f where f(X)--a cos bx. 4.1.1 determine the values of a and b
Sunday, May 15, 2016 by Fortunate

Math
Tap A can fill a tank in 8 minutes while tap B empties it in 9 minutes. How long will the tank be full if the two taps are opened at the same time?
Sunday, May 15, 2016 by Titus

math
A sample poll of 100 voters chosen at random from all voters in a given district indicated that 55% of them were in favor of a particular candidate.Find confidence limits for the proportion of all the voters in favor of this candidate. a.95% b.99.73%
Sunday, May 15, 2016 by Ras

Math
4x square plus x plus 9=0
Sunday, May 15, 2016 by Shreyansh

Math
Square is 20 feet wide and 21 feet long what is the disdence from one corner to the other
Sunday, May 15, 2016 by James

Math
(2p^q3)/5p0q/q5
Sunday, May 15, 2016 by Rathogwa makondelela

Math (Statistics)
12. Clancy, Rowling, Tolstoy Readability: Pages were randomly selected by the author J.K.Rowling, Leo Tolstoy, and Tom Clancy books. Use a 0.05 significance level to test the claim that the three samples are from populations with the same mean. Do the books appear to have ...
Sunday, May 15, 2016 by Lexi

Math (Statistics)
Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. 8. Male Color Blindness: When conducting research ...
Sunday, May 15, 2016 by Lexi

math
what is the surface area of a cube with side lengths that are 2/3?
Saturday, May 14, 2016 by mhysa

math
The variables x and y vary inversely. When y is 24, x is 8. What is y when x is 4?
Saturday, May 14, 2016 by Anonymous

math
there's a circle inside of a square like this: donlehmanjrcom/Tai%20Chi/Tai%20Chi%20New​sletters/excerpts11%20images/image001.pn​g (add the period before the com) the circle has a radius of 2 in and an area of 12.56 in^2 how do i find the area of the space ...
Saturday, May 14, 2016 by vic

Advance Math,Science
The solubility of sodium chloride is 35.4g of water at room temperature. What mass of sodium chloride can be dissolved in 1kg of water at room temperature?
Saturday, May 14, 2016 by Tabbie

Math
The student mr. Davis class either walk or ride the bus to school the number of students ride the bus is a tenant in the number of students who walk is 12 is there a 450 students in the school how many students total can you expect to ride the bus
Saturday, May 14, 2016 by Danny

Math
Solve this equation. (x)/(x-2) + (x-1)/(x+2) =-1
Saturday, May 14, 2016 by Booby bob

Math
The time t required to drive a certain distance varies inversely with the speed, r. If it takes 4 hours to drive the distance at 40 miles per hour, how long will it take to drive the same distance at 55 miles per hour? a. about 2.91 hours b. about 160.0 hours c. about 22.0 ...
Saturday, May 14, 2016 by jimmy mic dimmy

Math help.
What are the solutions to the systems? y=x^2+6x+7 y=-x+13 A. (-1,14) and (6,7) B. (-1,7) and (6,14) C. (-1,13) and (6,7) D. No solution I think its D.
Saturday, May 14, 2016 by Anonymous

Math
-x(7x-8) A. 6x^2-9x B. -7x-8x C. -7x^2+8x D. 7x+8x Is the answer B Thank you
Saturday, May 14, 2016 by Wallflower

math
A pizza shop offers the toppings shown below. How many different 3-topping pizzas can you make? pepperoni mushrooms sausage onion ham 6 10 ** 4 5
Saturday, May 14, 2016 by gabby

math
What are the solutions to the systems? y=x^2+6x+7 y=-x+13 A. (-1,14) and (6,7) B. (-1,7) and (6,14) C. (-1,13) and (6,7) D. No solution
Saturday, May 14, 2016 by Help me please.

Math
Nelly spends 25% of her free time surfing the Internet. If she spends approximately 1 hour per day surfing the Internet, how many hours of free time does she have each day?
Saturday, May 14, 2016 by Elisa

Math
Brent counted 10 red cards, 10 black cards, and 20 blue cards in a deck of cards. What is the ratio of red cards to the other cards?
Saturday, May 14, 2016 by Elisa

math
If 25 dimes were moved from Box A to box B there would be an equal number of dimes in both boxes. If 100 dimes were moved from Box B to Box A, the ratio of dimes in box A to box B would be 7:2. What was the original number of dimes in Box A?
Saturday, May 14, 2016 by kkkkkkkkkkkkkkkkk

Math
1. -x(5x-4) A.4x^2-5x B. -5x-4x C. 5x+4x D. -5x^2+4x 2. 5k^2(-6k^2-2k+6) A. -30k^3+3k^2+30k B. 30k^4-10k^3+11k^2 C.-k^4+3k^3+11k^2 D. -30k^4-10k^3+30k^2. My answers. 1.c 2. a Thank you
Saturday, May 14, 2016 by Wallflower

Math
6t^3x6t^3 A. 12t^3 B. 12t^6 C. 36t^6 D. 36t^6 Is the answer C? Thank you
Saturday, May 14, 2016 by Wallflower

math (PLZ HELP ASAP)
Paula, Dianna and Annie are three friends. Paula is twice as old as Dianna, and in 2 years she will be three times as old as Annie. If Dianna is 5 years older than Annie, how old is Paula? please use algebra to justify your answer.
Saturday, May 14, 2016 by Anonymous

math
a baker bakes bread and cake.he has 150 unit of A ,90 unit of B and 150 of C. One bread requires 1 unit of A ,1 unit of B and 2 unit of C. One cake requires 5 units of A, 2 unit of B and 1 unit of C. Find his maximum income if a bread sells for Tsh.350/= and cake sells for Tsh...
Saturday, May 14, 2016 by stembrige

Math
Find g(2) – f(2) Use f( x ) = 2x – 1 and g( x ) = x + 5
Saturday, May 14, 2016 by Anonymous

Math
f( x ) = 3x + 5 and g( x ) = -x + 9 Find: f( x ) – g( x )
Saturday, May 14, 2016 by Anonymous

Math calculation
A stock bottle contains 2.5 L of solution. How many 2 oz bottle can be filled using the stock solution?
Saturday, May 14, 2016 by Samantha

math (pLZ HELP ASAP)
The units’ digit of a two-digit number is 7 more than the tens’ digit. If 26 is added to the number, the result obtained is five times the sum of the digits. Find the number.
Saturday, May 14, 2016 by Anonymous

math
Anyone please help me! Directions: Follow the instructions below to design a fair race for the new video game Animal Tracks. 1. Choose two animals with different speeds. You can choose from the chart that starts at the bottom of this page or do research to choose your own. (I ...
Saturday, May 14, 2016 by Anna

math (PLZ HELP ASAP)
The students asked their math teacher to tell them her age. She didn’t want to tell them, but she replied, “If you take two years from my present age the result will be three times my son’s age, and seven years ago my age was twice what his will be in two years...
Saturday, May 14, 2016 by Anonymous

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