Monday
January 23, 2017

Homework Help: Math

Branches of Math

Recent Math Questions

math
determine which ordered pair is not a solution of y = -5x -4 (10, -52) (7,-39) (-7, 31) (8,-44)
Tuesday, December 20, 2016 by maria

Math
We want to construct a closed rectangular box whose base has a length three times the width. The surface area has to be 600 cm2. Determine the dimensions of the box that will produce the largest volume.
Tuesday, December 20, 2016 by R

Math
Two cars, car X and car Y , start moving from the same point P on a cross intersection. Car X is travelling east and car Y is travelling north. Some time later car X is 60 km east of point P and travelling in an easterly direction at 80 km/h and car Y is 80 km north of point P...
Tuesday, December 20, 2016 by R

Math
Is (2,12) a solution to the given system? y>2x+4 y<3x+7 Yes No What is the solution of the system of equations shown below? 2x+2y=10 5x-2y=4 (-2,7) (2,7) (2,3) (3,2) The point (-3,11) is a solution of which of the following systems? y≥x-2 2x+yâ&#...
Tuesday, December 20, 2016 by Anonymous

Math I NEEEDDDD HELP PLEASEEEEE
1. Write the ratio in the simplest form. 16:24 (1 point) 1:2 4:3 3:4 2:3 2. Solve the following proportion. (1 point) p = 2 p = 8 p = 12 p = 24 3. A recipe calls for 2 cups of sugar to make 2 dozen cookies. Use the proportion to calculate how much sugar is needed to make 6 ...
Tuesday, December 20, 2016 by Jayisbeastin

Math trig
Two towers 50 meters apart from the top of the shorter tower to the top of the taller tower 43 degree elevation, depression from the top of shorter tower to the bottom of the taller tower is 36 degrees what is the height of each tower?
Tuesday, December 20, 2016 by Shania

math
Make a list of data values thays fits this statement Half of the days of February were colder than 30 degrees fahrenheit find the mean, median, mode, and range of the data?
Tuesday, December 20, 2016 by Anonymous

math
what is the mean median mode and range of 420,450,480,440,420,490,580,590,510, 450,430,480
Tuesday, December 20, 2016 by Anonymous

Math
Data that would represent a bar gragh
Tuesday, December 20, 2016 by Anonymous

Math
The parallel sides of a trapezium are 25 cm and 13 cm.its non parallel sides are 15 cm and 10 cm. Find the area of the trapezium.
Tuesday, December 20, 2016 by Brajesh

math
Out of 14 bulbs 9 are good. Find no. Of good bulbs when total production is 35000
Tuesday, December 20, 2016 by rishu tiwari

Math
Three friends drove radio controlled cars around a track. The table below shows the number of laps completed by each person and the time it took. Latoya Mary Melissa Number of laps 9 30 20 Time (minutes) 3 6 5 Write the number of laps completed per minute for each person. Then...
Tuesday, December 20, 2016 by Rain

math
At a basketball game, a vender sold a combined total of 116 sodas and hot dogs. The number of sodas sold was three times the number of hot dogs sold. Find the number of sodas and the number of hot dogs sold
Tuesday, December 20, 2016 by john

Math (please help!!)
Which of the statements about the picture below is true? Choose 3. postimg(.)org/image/qb71bjkjh/f11870c4/ A. F is the circumcenter of the triangle<< B. F is the incenter of the triangle C. F is the point of concurrency of the perpendicular bisector of the sides of the ...
Tuesday, December 20, 2016 by Ren

math
It is known that approximately 20% of the population is colour blind. In a sample of 270 people, use the normal approximation to find probability that: a)at least 90 people are colour blind b)exactly 50 people are colour blind Thanks
Tuesday, December 20, 2016 by Jenna

math
In a bag there are 8 red jelly beans and 7 green jelly beans. The 4 jelly beans are randomly chosen from the bag without replacement. a)create a probability distribution table for choosing red jelly beans b)what is the probability that at least 2 chosen jelly beans are green ...
Tuesday, December 20, 2016 by Jenna

math
How long will it take ruppes 100 to double itself at 5% simple interest?
Tuesday, December 20, 2016 by veenu

math
a man was trying to swim to a buoy placed at a distance of 200m out in the sea. it took him 1 min to swim 20m. then a wave pushed him back 10m and he rested for about 1min before swimming again. he continued in his way for the rest of their journey. how long would it take the ...
Tuesday, December 20, 2016 by Ali

math
TWO YEARS AGO, KIM INVESTED RMP AT HER ACCOUNT WHICH EARNS r% simple interest . after eighteen months , she noticed that the amount had become rm 10450 and today amount is rm 10600 . FIND THE VALUE OF p and r
Tuesday, December 20, 2016 by jo

math
1. if one side of a square is increased by 2metres and other side is reduced by 2 metres. a rectangle is formed whose perimeter is 48.find the side of the orignal square.
Tuesday, December 20, 2016 by Aditya

math
A game isÂ​ defined by ​;the rules that&​Acirc; two diceÂ&​nbsp;are rolled ​and the  player&...
Monday, December 19, 2016 by Jenna

Math
A man standing on a window of the first floor of a building observed that the angle of depression of forest in which is 10 metre from the photo of the building is 45° claims to the window of the second floor directory above the first word and observe the end of the ...
Monday, December 19, 2016 by Shyam singh

business math
Asia Desai deposited $6,000 in a savings account that pays 5.5 percent interest compounded daily. How much interest did she earn in 21 day
Monday, December 19, 2016 by kathia

math
a car traveling at 25 miles per hour is 48 miles over the first 5 second it maintains this speed for the next 5 seconds and than slow to a stop during the next five seconds which graph below could match the situation described
Monday, December 19, 2016 by Anonymous

Math
Write the expression 6a in words?
Monday, December 19, 2016 by Ariba

math
Alka walks at the speed of 5 kmph but find that she is late to school by 7 minutes. However next day she walks at the speed of 6 kmph, and reaches school 5 minutes earlear than the usual time. Calculate the distance covered to reach the school.
Monday, December 19, 2016 by HEMENDU KUMAR

math
A man standing on a railway bridge which is 180 m long. He find that a train cross the bridge in 20 seconds but cross him in 8 seconds. Find the length of the train and its speed.
Monday, December 19, 2016 by HEMENDU KUMAR

math
A cyclist travelled at a rate of 24 mph to visit a near by town. The cyclist averaged 18 mph on the return trip. If the round trip took 4.9 hours, find the distance to the near by town.
Monday, December 19, 2016 by HEMENDU KUMAR

math
A salt solution of 15 litres contains 20%salt. How much water must you add to salt solution, in order to dilute it 15% salt?
Monday, December 19, 2016 by HEMENDU KUMAR

Math
Each week I save half my pocket money and I buy stamps for my collection with 1/3 of the pocket money. That leaves $3.21. How much do I spend on stamps?
Monday, December 19, 2016 by Anonymous

MATH
64 – [(9 ÷ 3) + 4 x 7] = ? Is it 33?
Monday, December 19, 2016 by Bonnie The Horse

Math
Aaron buys a bag of peanuts always three forths of a pound. Later that week the bag is two thirds full. How much does the bag of peanuts way now
Monday, December 19, 2016 by Makayla

math
xavier old bedroom was 8 feet by 10 feet.In his new house his bedroom is 12 feet by 16 feet. what is the percent increase in the area of his new bedroom
Monday, December 19, 2016 by et

Math
Simplify the radical. 16 ---- 49
Monday, December 19, 2016 by Lea

HELP ME PLZ MATH
Which is the best to buy???? A $10.88 for 7 can of tuna B $11.55 for 6 can of tuna C $17.25 for 9 cans of tuna D $15.31 for 8 cans of tuna PLZZ HELP ME I REALLY NEED HELP
Monday, December 19, 2016 by savepuppy

HELP ME PLZ MATH
Jake sold 28 tickets to the school fair and Jeanne sol 21 tickets. what is the ratio in simplest form of the number of tickets Jeanne sold to the number of tickets Jake sold A 3/4 B 4/3 C 28/21 D 21/28
Monday, December 19, 2016 by savepuppy

Math
The hieght,X ,of young American women is distributed normal with mean 65.5 and standard deviation 2.5 inches .find the probability of each the following events. a- X<67 b-64<X<67
Monday, December 19, 2016 by Sniper

math
there are 15 dogs and 5 cats what is the ratio for the dogs and the cats
Monday, December 19, 2016 by lela

MATH
it is found that the number of raisins in a box of a popular cereal is normally distrubuted, with a mean of 133 raisins per box and a standard deviation of 10 raisins. my cereal box has 152 raisins, what is the z-score for this box of cereal?
Monday, December 19, 2016 by JONES

math
THERE ARE ESTIMATES OF THE MARGIN OF ERROR FOR CONFIDENCE LEVELS OTHER THAN 95%. FOR A 90% CONFIDENCE LEVEL AND A SAMPLE SIZE N, THE MARGIN OF ERROR IS APPROXIMATELY 82/N%.SUPPOSE WE WISH TO HAVE A MARGIN OF ERROR OF 1% WITH A 90% CONFIDENCE LEVEL. APPROXIMATELY HOW MANY ...
Monday, December 19, 2016 by saRA

Math (1 Question)
Can someone tell me what property this is? 5(1) = 5
Monday, December 19, 2016 by Jessi

Math
An employee earns $195 for 15 hours of work. Assuming he is paid by the hour, how much will the employee earn in 8 hours?
Monday, December 19, 2016 by Anoymous

MATH
What percentage of adult males in America are under 5 feet 7 inches tall?
Monday, December 19, 2016 by saRA

MATH
5. Sales. An auto dealer’s sales numbers are shown in the table below. Find for each month the mean, median, and mode prices of the cars she sold. Round your answers to the nearest dollar. Price May June July $20,000 22 25 24 $15,000 49 24 24 $12,500 25 49 49
Monday, December 19, 2016 by Jones

Math
draw a line with a slope of 1/4 through the point (0 -4)
Monday, December 19, 2016 by Bob

connections math
solve each equation and put it in simplest form. x/5=-2 A)-45 B)35 C)-10 D)21 ???? 13x-7=136 A)11 ******* B)15 C)8 D)9 solve the following equation. 3x-3=15 A)4 B)5 C)6 ****** D)7 ernesto lost 14.5 pounds what equation can we used to find how much we was before he lost? A)x+14...
Monday, December 19, 2016 by dude

math(geometric series)
which term of the sequence 18,12,8,.... is 512/729 is ?
Monday, December 19, 2016 by Ana....

math(geometric series)
the sum of first 20 terms of a G.P is 244 times the sum of its first 10 terms. the common ration is ?
Monday, December 19, 2016 by Ana....

Math
A line PQ=11.7cm is perpendicular to line QR.By using line QR,divide line PQ into 10 equal parts
Monday, December 19, 2016 by Jada

Math
Draw lines AE=AB=BC=5cm and <BAE=<ABC=108°.Wid C and E as centres and radius 5cm,draw ares to intersect @ D and F.Join ,CD,DE,EF and FC.What type of quadrilateral is CDEF?What is the area of CDEF??Plz heeeeelp?????
Monday, December 19, 2016 by Jada

Math
12 1/2%
Monday, December 19, 2016 by Amina

math
The difference of two acute angles in a right angled triangle is 2Ï€/5.find the value of smallest angle?
Monday, December 19, 2016 by kushal

math
if the are of the circumcircle of an equilater triangle be 616 sq.m..,then hight of the triangle is.??
Monday, December 19, 2016 by abhi

math
the hour hand of a clock move from 1 to 4 0 clock. through how many degrees does it move
Sunday, December 18, 2016 by Anonymous

Math
Compare. Use <, >, or = to. Show all work -55÷(-11) ___ 45÷(-9)
Sunday, December 18, 2016 by Anthonny

Math
5. Sales. An auto dealer’s sales numbers are shown in the table below. Find for each month the mean, median, and mode prices of the cars she sold. Round your answers to the nearest dollar. Price May June July $20,000 22 25 24 $15,000 49 24 24 $12,500 25 49 49
Sunday, December 18, 2016 by Jones

math
Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the faster car. If one ...
Sunday, December 18, 2016 by Jose

Math
For the first tour on Monday, a museum sells 4 child tickets and 8 adult tickets for $128. For the second tour the museum sells 6 adult tickets for $72. Find the price of one child ticket and the price of one adult ticket
Sunday, December 18, 2016 by Alicia

Math
A rectangle's width is x and its length is 2x-1. Its area is 21. Find its dimensions. my work so far: 21 = x(2x +1) 21 = 2x^2 + x I was wondering how I would continue to solces this problem.
Sunday, December 18, 2016 by Caitlin

math
Annuities /assessment You would like to have $550,000 when you retire in 35 years. You would like to have $550,000 when you retire in 35 years. How much should you invest each quarter if you can earn a rate of 4.8% compounded quarterly? a) How much should you deposit each ...
Sunday, December 18, 2016 by McKellen

math
Solve the equation for x. For each of the following problems is it possible for x to be equal to: 1? (x+m)/(x−1)=1 If m ≠ -1, there are no solutions\ if m=1, the solution is ? Ii do not now how to find the solution for if m=1 but i got all ...
Sunday, December 18, 2016 by allie

Math
The equation of line joining the point (3,5) to the point of intersection of the lines {4x+y-1=0} and {7x-3y-35=0} is :
Sunday, December 18, 2016 by X

Math
The population of a town increases by 25% during 1991. By what percent must it decrease the following year to return to the population it was at the beginning of 1991? I thought the answer was 25% but i don't know for sure.
Sunday, December 18, 2016 by Sai

Math
As the number of units manufactured increases from 4000 to 6000 the total cost of production increases from 22000 to 30000. Assuming a linear relationship between the cost when 4500 units are produced.
Sunday, December 18, 2016 by Oo

Math
The salary of an employee in 1985 is $1200,in 1987 it will be $1350. Express salary as a linear function of time and estimate his salary in 1988.
Sunday, December 18, 2016 by Ana

Math
A rectangle's width is x and its length is 2x-1. Its area is 21. Find its dimensions. my work so far: 21 = x(2x +1) 21 = 2x^2 + x I was wondering how I would continue to solces this problem.
Sunday, December 18, 2016 by Caitlin

Math
Given that the line x/a + y/b = 1 passes through ( 0 , 3 ) and ( 5 , 1 ), find the value of a and b
Sunday, December 18, 2016 by Jake

math
The locus of a point whose distance from point (0,5) is always 3/4 of its distance from the line Y=8 is an elipse. Find the equation,centre, length of the major axis, length of the minor axis and the foci of the ellipse.
Sunday, December 18, 2016 by saud

Math
3. At the end of a dock, high tide of 14 m is recorded at 9:00 a.m. Low tide of 6 m is recorded at 3:00 p.m. A sinusoidal function can model the water depth versus time. a) Construct a model for the water depth using a cosine function, where time is measured in hours past high...
Sunday, December 18, 2016 by Peter

Math
Sammy has a 10-foot ladder, which he needs to climb to reach the roof of his house. The roof is 12 feet above the ground. The base of the ladder must be at least 1.5 feet from the base of the house. How far is it from the top of the ladder to the edge of the roof? I am ...
Sunday, December 18, 2016 by Chen

Math
A rectangle's width is x and its length is 2x-1. Its area is 21. Find its dimensions. my work so far: 21 = x(2x +1) 21 = 2x^2 + x I was wondering how I would continue to solces this problem.
Sunday, December 18, 2016 by Caitlin

MATH
Calculate the net present value (NPV) of the cash shown on the diagram at t = 0 year, if the interest rate is W % compounded annually. Initial capital is AED 300,000 [Choose any value for X,Y&Z from AED 200,000 to 900,000and W from 10% to 18%] AED 100,000 AED X AED Y AED Z 0 1...
Sunday, December 18, 2016 by ESLAM

MATH
Find the value of single perpetuity payment if the present value of the perpetuity payments at t=0 years is AED 500,000 and the interest rate is R% compound per year.[Choose R% from 8% to 12%]
Sunday, December 18, 2016 by ESLAM

Math, calculus, advanced functions, pre calculus
An investments value, V(t) is modelled by the function V(t)=2500(1.15)^2, where t is the number of years after funds are invested A) find the instantaneous rate of change in the value of the investment at t=4, what intervals would you choose? Why? My question is ... Which ...
Saturday, December 17, 2016 by Ruffin

math
AB os a diameter of a circle with centre at origin.what are the cootdinates of B if coordinate of A are(3,-5)
Saturday, December 17, 2016 by reavathysekaran

math
Write a rule for the function represented by the table x y 0 9 1 28 2 47 3 66 A.y=9+19x B.y=18+10x C.y=19+9x D.y=10+18x
Saturday, December 17, 2016 by layla

Math Homework
In a lottery game, a player picks six numbers from 1 to 48. If 4 of those 6 numbers match those drawn, the player wins third prize. What is the probability of winning this prize? (Give your answer as a fraction.) My Answer : 1/12972
Saturday, December 17, 2016 by Cathy Wilson

Math
Michael's father brought him a 16-foot board to cut into shelves for his bedroom. Michael plans to cut the board into 11 equal size lengths for his shelves. The saw blade that Michael will use to cut the board will change the length of the board by -0.125 inches for each ...
Saturday, December 17, 2016 by Maria Sanchez

English
My answers are *** The word that are supposed to be in italics are in all capitals. 1.   Choose the answer that best matches the word in italics. When London speaks of Buck METAMORPHISING, he means that Buck lost his appetite. changed into a different ...
Saturday, December 17, 2016 by G

Finite Math
A certain virus infects one in every 500 people. A test used to detect the virus in a person is positive 90% of the time if the person has the virus and 10% of the time if the person does not have the virus. Find the probability that a person does not have the virus given that...
Saturday, December 17, 2016 by Cathy Wilson

MATH
Assign variables and write equations for the following. Do not solve. The cost of a motorcycle is $200 less than 1/3 cost of a truck. If 3 motorcycles and 1 truck cost $35,400, find the cost of a motorcycle. Equations: Let __ = ___________ ____________ __ = ___________ ...
Saturday, December 17, 2016 by John Dosley

Math
Does anybody know what study island is?
Saturday, December 17, 2016 by Reeces

Math
how long does it take an investment of $8000 to double if it is invested at 7% interest compounded continuously. round to nearest year.
Saturday, December 17, 2016 by Eve

Math
Sonia draws a line between Los Angeles and San Diego on a map. Find the shortest distance between the two cities. If the scale is 1 inch = 50 miles, what is the distance in miles between the two cities. A.25, B.50, C.100, D.150? Please help me
Saturday, December 17, 2016 by Pier Smiley

math
AB is a diameter of a circle with centre at origin.what are the coordinates of B if coordinate of A are (3,-4)?
Saturday, December 17, 2016 by revathysekaran

Math
Triangle abc is right angled at a .ad is drawn perpendicular to bc .if ab=5cm and ac=12cm find the area or triangle abc. Also find the length of ad
Saturday, December 17, 2016 by Sojal

Math
The speed of a Garden snail is 50 meters per hour and that of the Cheetah is 120 kilometers per hour. Find the ratio of the speeds.
Saturday, December 17, 2016 by Anonymous

math
We know that 65% of all Americans prefer chocolate over vanilla ice cream. Suppose that 1000 people were randomly selected. The Sampling Distribution of the sample proportion is
Saturday, December 17, 2016 by Estimation

Math - Coordinate Geometry
The vertices of a quadrilateral are A(-2,3), B(5,4), C(4, -3) and D(-3, -4). Prove that ABCD is a rhombus. Find the area of ABCD. Formula to find length: d = √(x2 - x1)^2 + (y2-y1)^2 Please show working out, thanks.
Saturday, December 17, 2016 by Anonymous

Math
solution of a rectangular swimming pool 8m long and 5m wide has 0.5 m wide path around it . find area of path
Saturday, December 17, 2016 by Sapna

math
ABC is a triangle.P,Q and R ARE THE MIDPOINTS OF BC , AC AND AB RESPECTIVELY.L IS ANY POINT ON BC DRAWN THROUGH VERTEX A. PROVE THAT; RLPQ IS CYCLIC QUADRILATERAL IF AL IS PERPENDICULAR TO BC. AND QR IS JOINED
Friday, December 16, 2016 by Prakash

Math
A rectangles length and width are a ratio of 8:5. The area is 169 square millimeters. What are the length and width? Can anyone help and show how they got the answer....lost on this one.
Friday, December 16, 2016 by Shirley

math-circles
The area of two circles are in a ratio of 4:9. If both radii are integers, and r(1) - r(2) = 2, what is the radius of the larger circle?
Friday, December 16, 2016 by jose

math
In pallelogram, ABCD, E is the midpoint of DC, AE intersecs BD at point O, the area of triangle DOE is 12cm^2, what is the area of triangle AOB?
Friday, December 16, 2016 by jose

math
A basket at a baby shower contains 8 bottles of pink nail polish numbered 1 through 8, and 9 bottles of red nail polish numbered 1 through 9. One bottle is drawn from the basket at random.
Friday, December 16, 2016 by Anonymous

Math
3/4, 1/4, 1/12, 1/36 what is the next number in the sequence? I tried using 36 as common denominator but that seems wrong. Can you help me get the answer and explain how it was done. PLEASE HELP
Friday, December 16, 2016 by Makayla

Math
The second of two numbers is 5 more than the first. The sum of the numbers is 57. Find the numbers.
Friday, December 16, 2016 by John Dosley

Math 1
Martha wants to buy a new bike that costs $79, including tax. She currently has $15 saved. She began a dog walking business to earn the remaining money needed to buy the bike. She charges $5 for each dog she walks. What is the fewest number of dogs that Martha needs to walk to...
Friday, December 16, 2016 by Emmy

Math algebra
I need some help with this It is given that 2(3 + x) = 6 + 2x. This is an example of the ___________ property. A) associative B) commutative C) distributive D) identity plz type the answer asap like by 7:50 or else I'm a dead man.
Friday, December 16, 2016 by Trevor

Math
24 feet to 2 yards?
Friday, December 16, 2016 by cockroach!

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