Sunday
July 31, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math
1. what are the equivalent fraction and decimal for 33 1/3% ? a 1/33 and 0.3 b 1/33 and 3 c 3 1/3 and 0.00 d 1/3 and 0.33 <-- my answer 3. Estimate 78% of 20 a 14 b 16 c 19 d 2 (help??)
Monday, June 6, 2016 by anonymous

math
Approximate to the nearest metre. 1m 40cm
Monday, June 6, 2016 by Anosike

math
If it is confirmed that, two thirds of the students of a COLLEGE are female, calculate the probability that on entering the college, the first two students one meet are; (i) The same gender (ii) Different gender
Monday, June 6, 2016 by danbaba

Math :(
A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn. 1. What is the probability of selecting a purple marble and then a white marble? 2. What is the probability of selecting ...
Monday, June 6, 2016 by Music Lover 14

7th Grade Math
Use familiar figures to to find the area of the figure shown. Show all work. Since I can't provide a picture, here is the description. It looks like a rocket ship. There is a triangle with a width of 4 inches. A rectangle with a base of 3 inches and a width of 10 inches. ...
Monday, June 6, 2016 by Music Lover 14

math
Find each value if cos A=12/13 with 0 (degrees) <= A <= 90 (degrees) and if sin B=8/17 with 90 (degrees) <= B <=180 (degrees) 1. sin(A+B) 2. cos(A-B) 3. tan(A-B)
Monday, June 6, 2016 by Sarah

math
If line AB have midpoint (1,2) and gradient 0 with distance of 10 units find the coordinates of A and B
Monday, June 6, 2016 by Summit

Math
A car is stopped at a red light, and starts moving at time t = 0 when the light turns green, with an acceleration given by a(t) = √t, with t given in seconds, and distances given in metres. a) Find a formula for the velocity v(t), via integration. b) How long will it ...
Monday, June 6, 2016 by Mr Homie

Math
A car is stopped at a red light, and starts moving at time t = 0 when the light turns green, with an acceleration given by a(t) = √t, with t given in seconds, and distances given in metres. a. Find a Formul
Monday, June 6, 2016 by Mr Homie

Math
You order twelve burritos to go from a Mexican restaurant, five with hot peppers and seven without. However, the restaurant forgot to label them. You pick three burritos at random. Find the probability of the events (as a reduced fraction and as a percent rounded to the ...
Monday, June 6, 2016 by Josh

math
Order the following fractions from smallest to largest: 3/8, 1/3, 5/9, 2/5
Sunday, June 5, 2016 by renita

math
Use < , =, > to compare the following sums: 1/2 + 1/4 _______1/3 + 1/5
Sunday, June 5, 2016 by renita

math
Use < , =, > to compare the following sums: 1/2 + 1/4 _______1/3 + 1/5
Sunday, June 5, 2016 by renita

Math (Right Triangle Trig)
Suppose tan(theta)=5/7 and theta belongs to Quadrant III, find the exact value of sec(theta)? I already took the steps to solve this problem but I am confused if whether or not sec(theta)is positive or negative sqrt(74)/7 Any help is greatly appreciated!
Sunday, June 5, 2016 by Giovanni

Math
If the average speed for a trip is reduced by 20%, by what percent does the time change?
Sunday, June 5, 2016 by quick

math
The sum of three numbers is 89 . The third number is 3 times the second. The first number is 9 more than the second. What are the numbers?
Sunday, June 5, 2016 by Zoey

math
How do you change these fractions into equivalent fractions: 3/8, 1/3, 5/9, 2/5
Sunday, June 5, 2016 by renita

math
Order the following fractions from smallest to largest: 3/8, 1/3, 5/9, 2/5
Sunday, June 5, 2016 by renita

math
Ten years ago,father was twelve times as old as his son and ten years from now,he will be twice as old as his son. Find the present age
Sunday, June 5, 2016 by micheal

Math
A hat contains 3 ​marbles; one green​, one blue​, and one orange. Two marbles are selected at random without replacement from the hat. ​a) Determine the number of points in the sample space. ​b) Determine the probability of selecting exactly 1 ...
Sunday, June 5, 2016 by David

Math
Find the indicated probability. If​ P(A or ​B)equals=0.7 ​P(A)equals=0.3 and​ P(A and ​B)equals=0.15 find​ P(B). ​P(B)equals=
Sunday, June 5, 2016 by David

Math
As the earth revolves around the sun, distant objects can be seen from different locations. This idea can be used to measure the distance between earth and nearby stars and is called stellar parallax. To see how this process works, consider the simplified scenario below. A.) A...
Sunday, June 5, 2016 by Cameron

Math
Jackie earns a base pay of $3000 a month at her sales job. Jackie also gets a 15% bonus on all monthly sales. To make sure she can pay her bills for the upcoming month, Jackie needs to earn at least $4200. Write an inequality to represent this situatio
Sunday, June 5, 2016 by Anonymous

Math-SineLaw
Fire lookout towers are used to locate fires so they can be put out as soon as possible. These towers often work in networks and if two towers can see a fire at the same time, they can determine the location of the fire vey accurately. A.) Two forest rangers in towers see a ...
Sunday, June 5, 2016 by Sydney

math,algebra
As a fundraiser, Student Council sold two types of candy: lollipops for 40 cents each and chocolate bars for 75 cents each. On Monday, the students sold 150 candies and raised $74. How many lollipops did they sell?
Sunday, June 5, 2016 by Xtian Zhou

math
A triangle has a perimeter of 39 inches. If two sides are of equal length and the third side is 3 inches longer than either of the other two, how long is the longest side?
Sunday, June 5, 2016 by dickson

Math
Show that 1+((e^x-e^-x)/2)^2 = ((e^x+e^-x)/2)^2 Can someone explain how does the 1st equation is equal to the 2nd one
Sunday, June 5, 2016 by Mr Homie

Math
suppose U = {-10, -6, -2, 0, 3, 5} is the universal set and T is the set {-10, -6, 0}. what is the complement of set T?
Sunday, June 5, 2016 by Danii

math
a water pump has a capacity to fill water at 10 liters per second. How much time will it take to fill the water tank of 80cm .60cm.50cm?
Sunday, June 5, 2016 by ajAy

Math
A shopkeeper marked the price of an article a certain percent above cp and he allowed 16% discount to make 5% profit. If a customer paid rs.9492 with 13% vat to buy article by what percent is MP above CP of article?
Sunday, June 5, 2016 by Gho

MATH
THE PARALLEL CHORD OFA CIRCLE ARE OF LENGTH 6CM,RADIUS OF THE CIRCLE IS 5CM FIND THE DISTANCEBETWEEN THE CHORD
Sunday, June 5, 2016 by PROMISE

MATH
RADIUS OF A CIRCLE IS 13CM,DISTANCE OF THE CHORD FROM THE CIRCLE IS 12CM CALCULATE THE LENGTH OF THECHORD
Sunday, June 5, 2016 by PROMISE

MATH
LENGTH OF A CHORD IS 8CM,RADIUS IS 5CM CALCULATE THE DISTANCE OF THE CHORD FROM THE CENTRE OF THE CIRCLE
Sunday, June 5, 2016 by PROMISE

Math
I am asked to graph a translated parabola,ok, that's pretty easy, but, then,it says that it must be dobe with a dilatation of 2, does that mean that my axis is going to be this way:2,4,6,8,10...??
Sunday, June 5, 2016 by Paul

Math w/reply
Hey there, just need help with these two. I need someone to help explain them to me/break them down. 1. gr 1/100=_____mg Answer: 0.6 2. 0.3mg= gr_____ Answer: 1/200 3. gr iii /ss= ______mg Answer: 210 Thank you in advance! *** REPLY: I did not get these answers. These are the ...
Sunday, June 5, 2016 by Anonymous

Math
A piece of wire is 76cm long.it is cut into two unequal parts and each part is bent into a square.the sum of the areas of two squares is 205cm^2.find the length of the shorter part of the wire.
Sunday, June 5, 2016 by Lili ming

Math
The sum of the ages of mingfa and his father is 34 years.in 4 years time,the square of mingfas age will be equal to his fathers age. Find mingfas present age.
Sunday, June 5, 2016 by Lili ming

math
The Area of a square is numerically less than six times its side list some squares in which this happen
Sunday, June 5, 2016 by himanshi

math
The diagonal of a rectangle measures 7,4 m and one side is 2,4 m.calculate the length of the other side.
Sunday, June 5, 2016 by Ndiphiwe

math
A lighthouse is 10 m high and is situated on a vertical cliff which is 70 m above sea-level.The beam of light from the is 192 m from the foot of the cliff.how long is the beam of light at that instant?
Sunday, June 5, 2016 by Ndiphiwe

Math - surface area
A land scape is preparing a circular flowerbed. The bed has a 12-foot diameter. He will need 13 plants per square yard. How many plants should he buy? Thank you.
Sunday, June 5, 2016 by Jennifer

MATH
A straight pipe carried water from reservoir(R) to a tap(T) and T are 2km a part horizontally and R 500m above the level.find lenght of the pipe.
Sunday, June 5, 2016 by adebisi adewumi j

math
find the lenght of the longest straight line which can be drawn on a rectangulelar chalkboard which measure 2.2m by 1.2m PLEASE HELP ME OUT
Sunday, June 5, 2016 by adebisi adewumi j

math
The sports master explained to the headmaster that 3 baseballs and 1 cricket ball weighed the same as 14 tennis balls. He also found that 1 baseball and 6 tennis balls exactly balanced 1 cricket ball. ‘That is interesting,’ said the headmaster, ‘and how many ...
Sunday, June 5, 2016 by yato

math
At a bus stop 20 students were standing in four groups. The first group contained four students more than the second. The second group contained one student less than the third. The fourth group contained twice as many students as the second group. How many students were in ...
Sunday, June 5, 2016 by deezenut

Math
A boy is 26 years younger than his father.In 3 years time, his age will be 1/3 his father's age.find the boys present age.
Sunday, June 5, 2016 by John McCain

Math
Amy and Ashley bike along the same trail. Amy bikes the entire trail at a speed of 20 mph and Ashley bikes it at a speed of 15 mph. Amy finishes biking the entire trail 8 minutes before Ashley. How many miles long is the bike trail?
Sunday, June 5, 2016 by Anonymous

Math
Calculate the perimeter of the triangle formed by the middle points of the sides of the triangle formed by points A(-8,6) B (2,5) and C (1,7) I've already got the distance between all the points given but I do not know what to do next. Can you help me?
Saturday, June 4, 2016 by Julius

Math(Revised)
Phoebe and Tucker are 48m apart. Phoebe looks up at an angle of 43 degrees to see a hot air balloon hovering in the sky directly between her and Tucker. Tucker looks up at an angle of 31 degrees to see the hot air balloon. A.) Explain how it could be determined who is closer ...
Saturday, June 4, 2016 by Cameron

Math
Phoebe and Tucker are 48m apart. Phoebe looks up at an angle of 43 degrees to see a hot air balloon hovering in the sky directly between her and Tucker. Tucker looks up at an angle of 31 degrees to see the hot air balloon. A.) Explain how it could be determined who is closer ...
Saturday, June 4, 2016 by Cameron

math
32foot ladder at a 70degree angle. How high is top of ladder
Saturday, June 4, 2016 by Anonymous

math
car gets 19 miles to the gal at let's say $3 per gal, taking an 8.5mi trip. How much does this trip cost?
Saturday, June 4, 2016 by Lee

Math
Hey there, just need help with these two. I need someone to help explain them to me/break them down. 1. gr 1/100=_____mg Answer: 0.6 2. 0.3mg= gr_____ Answer: 1/200 3. gr iii /ss= ______mg Answer: 210 Thank you in advance!
Saturday, June 4, 2016 by Anonymous

math
find the lenght of the longest straight line which can be drawn on a rectanglelar chalkboard which measure 2.2m by 1.2m
Saturday, June 4, 2016 by adebisi adewumi j

math
Find out which of these are pythagorean tripple.a(20,21,29)b(15,22,27)c(28,45,53​)d(12,16,20)e(30,40,50)with workings.
Saturday, June 4, 2016 by adebisi adewumi j

math
a plane flies northwards for 430km.if the plane flies eastward for 380km.how far is it from its starting point(ignore its height above the ground)
Saturday, June 4, 2016 by adebisi adewumi j

Physics
This is a theoretical question, ignore the numbers. A 205-kg log is pulled up and to the right on a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0 degrees with respect to the horizontal. The coefficient of kinetic friction ...
Saturday, June 4, 2016 by Anonymous

math
To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters Not sure how to solve. I thought ...
Saturday, June 4, 2016 by mike

Math(Please Help Assignment Due Today)
Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.
Saturday, June 4, 2016 by Shayla

Math
Two boats leave the same place at the same time. The first sails in a straight line N70°W at 45 miles per hour and the second goes in a straight line S23°E at 57 miles per hour. After 1 hour, how far apart are the boats, to the nearest tenth of a mile?
Saturday, June 4, 2016 by John

math
To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters
Saturday, June 4, 2016 by mike

Math
A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816 - 1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.
Saturday, June 4, 2016 by Mike

Math
A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816 - 1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.
Saturday, June 4, 2016 by Sue

math
A tank is 5/7 full, when 440 litres are removed it goes to 2/5. How much litres does it contain in full capacity
Saturday, June 4, 2016 by Vicky

Math
Use 18 coins to make $1.75 I NEED LOTS OF HELP IM JUST IN FOURTH GRADE AND MY TEACHER NEVER TAUGHT ME THIS MY TEACHER IS MRS MCABE
Saturday, June 4, 2016 by Isabella

Math-Calc
f(r)=r/(10r^2+7) find the critical numbers. I found the derivative to be -10r^2+7/(10r^2+7)^2 and now I am stuck. What do I do next?
Saturday, June 4, 2016 by Anonymous

Math - Year 10 - Simult. Equations
Q) Mr Yang's son has a total of twenty-one $1 and $2 coins in his money box. When he counts his money, he finds that it's total value is $30. How many coins of each type does he have?
Friday, June 3, 2016 by ^ ^

Math - Year 10 - Simult. Equations
Q) one number is 9 less than three times a second number. If the first number plus twice the second number is 16, find the two numbers.
Friday, June 3, 2016 by ^ ^

math
A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816 - 1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.
Friday, June 3, 2016 by Mike

math
Toy land is having a sale. all items are 20% off how much will you save on an item that usually sells for $95? (written response)
Friday, June 3, 2016 by Larry vandermark

Math
One thousand raffle tickets are sold for 1 dollar each, one prize of 800.00 dollars is to be awarded. Rene Condos purchases one ticket a) Determine her expected value? b) Determine the fair price of a ticket?
Friday, June 3, 2016 by David

Math
Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.
Friday, June 3, 2016 by Shayla

math
A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816 - 1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.
Friday, June 3, 2016 by sue

math
Mike rides his bike 33 km south and then 56 km west. How far is the shortest distance from his starting point? 33^2 + 56^2 = C^2 1,089 + 3,136 = C^2 4,225 km = C^2 C^2 = SQRT of 4,225 km or 65 km
Friday, June 3, 2016 by sue

math
A 12ft. pole casts a shadow of 16ft. What is the distance between the end of the shadow and the top of the pole? A^2 + 12ft^2 = 16^2 A^2 + 144 = 256 A^2 + 0 = 256 - 144 A^2 = 112 A^2 = SQRT of 112 or 10.58ft.
Friday, June 3, 2016 by sue

math
A designer enlarged both the length and the width of a rectangular carpet by 60 percent. The new carpet was too large so the designer was asked to reduce its length and width by 25 percent. By what percent was the area of the final design greater than the area of the original ...
Friday, June 3, 2016 by jenny

Math
A Ferris wheel has a diameter of 60 feet. When you start at the bottom of the Ferris wheel, you are 2 feet from the ground.The Ferris wheel completes one rotation in 2 minutes. Create a graph that represents your height relative to the center of the Ferris wheel as a function ...
Friday, June 3, 2016 by Brenda

math
if 30 sixth graders own birds how many sixth graders were surveyed theirs a pie graph with 5% reptiles 5% birds 10% fish 35% cats and 45% dogs (it`s a writing response) HELP PLEASE
Friday, June 3, 2016 by Larry vandermark

Math- Geometry
Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.
Friday, June 3, 2016 by Brian

math check my answers please and thank you
select the answer that correctly orders the set of numbers from least to greatest 14% , 1/8 , 0.03 , 0.065 A. 14% 1/8 0.065 0.03 B. 0.065 0.03 1/8 14% C. 0.03 0.065 1/8 14%**** D. 0.03 0.065 14% 1/8 select the answer that correctly orders the set of numbers from greatest to ...
Friday, June 3, 2016 by Larry vandermark

math
HELP PLZ!!!!!! On Friday nights the local diner serves three main entrées, each with a choice of vegetable. The entrées are beef, chicken, and fish. The vegetables are spinach, broccoli, and carrots. How many possible dinners (entrée and vegetable ...
Friday, June 3, 2016 by HELP

math
which of the following numbers are equivalent to 35% theirs 2 answers A.7/20 B.6/20**** C.3.5 D.0.35**** HELP
Friday, June 3, 2016 by Larry vandermark

Math
5x + 2, can be expressed as:
Friday, June 3, 2016 by Danii

math
Hi, I posted a question yesterday. How do I get to see if someone answered? Thanks, John
Friday, June 3, 2016 by John

math
which of the following numbers are equivalent to 20% there are two answers. A.0.002 B.1/4 C.0.20 D.1/5
Friday, June 3, 2016 by Larry vandermark

Math (Parametrics)
Find the parametric equations of a unit circle where you start at point (0,1) at t=0 and you travel clockwise with a period of 2π? x(t)=? y(t)=?
Friday, June 3, 2016 by Ray

Math Urgent Please Help
Which coordinates could be the vertices of a triangle similar to triangle RST? {original triangle coordinates R(0,0); S(0,4); T(3,0)} a. (2,2), (2,6), and (6,0)*** b. (0,0), (0,6), and (10,0) c. (2,2), (2,10), and (6,2) d. (0,0), (0,8), and (6,0)
Friday, June 3, 2016 by Mame

math
42p=4-2p+8
Friday, June 3, 2016 by taofeeq

Temperature(Math)
At 1:00 pm the temp is 72 deg, the temp went down to 52 deg at 6:30, what is the temp at 4:00pm?
Friday, June 3, 2016 by Alicia

Math
Matthew is riding a ferris wheel at a constant speed of 2 revolutions per minute. The boarding height for the wheel is 1m, and the radius is 7m. a) What is the equation of the function that describes Matthew's Height in (m) in terms of time in minutes, assuming matthew ...
Friday, June 3, 2016 by Dyrone

math
what is the current value of a pension of $ 200.00 per month for the next 15 years?
Friday, June 3, 2016 by John

Math-Calc
limx->0 (3^x-6^x)/x please help here do not really know where to even start
Thursday, June 2, 2016 by Anonymous

Calc-Math
Evaluate the limit using l'hospitals rule. lim->0 (3^x-6^x)/x. Do not know where to even begin on this one... please help.
Thursday, June 2, 2016 by Lisa

math
find the radius the angle of regular hexagan.
Thursday, June 2, 2016 by niti.

Add Math
the variable point P(x, y) moves so that it is the same distance from the points (1,6) and (3, 2). The equation of the locus of P may be obtained by?
Thursday, June 2, 2016 by Natalie

Math(Assignment due today)
In Alberta, ramps that are designed for people using mobility devices must meet certain safety requirements. One such requirement is that the angle between the ramp and the horizontal must be less than 4.8 degrees. Explain whether or not the ramp in the picture below is ...
Thursday, June 2, 2016 by Cameron

math
there are 18 boys and 12 girls in a math class. what is the ratio of "girls" to total students.
Thursday, June 2, 2016 by zero

Math
What is the approximate volume of 175 I dont really get the question
Thursday, June 2, 2016 by Anonymous

Math
Prove that an exterior angle of a triangle is equal to the sum of the non adjacent interior angles of that triangle. Use the following variables in your proof. Exterior angle=w Interior adjacent angle= x Interior non adjacent angle1= y Interior non adjacent angle2= z
Thursday, June 2, 2016 by Brian

Math Urgent Please Help
Which construction is illustrated below? a. a perpendicular to a given line from a point not on the line b. a perpendicular to a given line from a point on the line c. perpendicular bisector of a given segment d. bisector of a line segment Please help with this. It doesn't...
Thursday, June 2, 2016 by Mame

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