Thursday
July 28, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math
1. O is the center of the given circle. the measure of angle O, is 134. The diagram is not drawn to scale. Assuming that the lines that appear to be tangent are tangent, what is the value of x? A) 67 B) 46 C) 314 D) 268 can someone please help? I saw an example with X having ...
Tuesday, June 7, 2016 by Tim

math
A grapefruit is 8% heavier than an orange, and an apple is 10% lighter than the orange. By what percent is the orange heavier than the apple?
Tuesday, June 7, 2016 by Anonymous

math
Constructing a parallelogram which size is 6cm and 9cm the angle between size being 60 degree menion the diagonal
Tuesday, June 7, 2016 by adrian jackson

Math (Polar to Cartesian Equation)
Convert the given polar equation to a Cartesian equation. r^2=4sec(theta)csc(theta)
Tuesday, June 7, 2016 by Ray

Math
Prove that the following Trigonometric Identity is valid: 1/(sin⁡(y)-1)-1/(sin⁡(y)+1)=​-2sec^2 (y) Please any help or clues on how to do this is needed. I have a sheet that tells me valid identities but nowhere on it has info on -2sec^2 (y) I am sooo ...
Tuesday, June 7, 2016 by kat

math
a piece of wood is divided into three pieces in the ratio 3 : 4: 2. the length of the longest piece is 72 cm. calculate the length of the pices of wood
Tuesday, June 7, 2016 by anaon

Math
What is the value of "x" if 25^2=x? 1.)125 2.)0 3.)625 4.)5
Tuesday, June 7, 2016 by :)

Math
1. The length of the hypotenuse of a 30-60-90 triangle is 7. Find the perimeter. A) 7/2+21/2 sqrt 3 B) 21+7 sqrt 3 C) 7+21 sqrt 3 D) 21/2 + 7/2 sqrt 3 Could someone please help me, I don't know how to do this. Thank you!
Tuesday, June 7, 2016 by Tim

Math
1. In ABC, A is a right angle, and m B=45*. Side CA also has a length of 17ft just to let everyone know. What is the length of BC? If the answer is not an integer, leave it in simplest radical form. The diagram is not shown to scale. A) 54 ft B) 17 sqrt 3 ft. C) 17 sqrt 2 ft. ...
Tuesday, June 7, 2016 by Tim

Math
1. A square is __________ a rectangle. A) always B) sometimes C) never D) inconclusive One site about rectangles said, yes. But I'm not sure that's the answer.
Tuesday, June 7, 2016 by Tim

Math
3. A quadrilateral ____________ has one pair of parallel sides. A) always B) sometimes C) never D) inconclusive Is the answer B? I kinda wanna say D, but I believe it's B.
Tuesday, June 7, 2016 by Tim

Math
1. What is the equation of the circle with center (-4,-3) that passes through the point (6,2)? A) (x-4)^2+(y-3)^2=25 B) (x-4)^2+(y-3)^2=125 C) (x-(-4))^2+(y-(-3))^2=25 D) (x-(-4))^2+(y-(-3))^2=25 I'm really not sure how to do this at all, so any help would be absolutely ...
Tuesday, June 7, 2016 by Tim

math
A park is in the form of a rectangle 100 m×80 mat. At the centre of the park there is a circular lawn. The area of the park excluding the lawn is 4150 m^2 find the radius of the circular lawn
Tuesday, June 7, 2016 by Neha

Math(DifferentQuestion,SameDescription)
Orienteering is a sport that involves navigating your way to a series of checkpoints with the aid of a map and compass. The goal is to find each point on the map as quickly as possible. A typical compass used for orienteering is divided into 360 degree where 0 degrees is north...
Tuesday, June 7, 2016 by Cameron

Math
The sum of three consecutive numbers is 66.Form an equation to represent this information and find these numbers
Tuesday, June 7, 2016 by Hazel

Math
35 1/2% to the nearest thousandth
Tuesday, June 7, 2016 by Nana

math
Lolita saved $ 5000 in a saving account which pays 12% interest compounded monthly. Eight months later she saved another $ 5000. Find the amount in the account two years after her first saving.
Tuesday, June 7, 2016 by omar

Math Help Please
What are the ratios for sin A and cos A? The diagram is not drawn to scale. Triangle Description- AB = 29 AC = 20 BC - 21 A. sin A = 20/29, cos A = 21/29 B. sin A = 21/29, cos A = 20/21 C. sin A = 21/29, cos A = 20/29****? D. sin A = 21/20, cos A = 20/21 Please help and explain!
Tuesday, June 7, 2016 by Battia Anne

Math
A pharmaceutical salesperson receives a monthly salary of $2500 plus a commission of 7 percent of sales. Write a linear equation for the salesperson monthly wage in terms of monthly sales.
Tuesday, June 7, 2016 by Dave

math
amy has60 wooden beads she has 4 times as manyas glass beads how many glass beads does amy have?
Tuesday, June 7, 2016 by Nuriffah farhana

Math (money)
After spending $200 of her money on a dress. Lily spent 20% of her remaining money on a bag. She then spent $131 on a pair of shoes. In the end, she had 20% of the original amount Lily had at first. What is the original total amount she had at first? My work so far: 1/5 saved ...
Tuesday, June 7, 2016 by user1234

MATH
In a race, a triathlete runs 1/3 of total distance, cycles 2/5 of the total diatance and swims the ramaining distance. he swim 1.200 meters. What is the total distance of the race?
Tuesday, June 7, 2016 by Martha

Math (Trig)
Suppose the point A is on a circle of radius 6 with an angle of 240 degrees. Find the value of the coordinates of this point. Round your results to 3 decimal places. So in this case, x=rcos(theta) y=rsin(theta) x=6cos(240) y=6sin(240) Rounding to 3 decimal places: x=-3 y=-5....
Tuesday, June 7, 2016 by Giovanni

math
find a number such that its two-fifth is 12.
Monday, June 6, 2016 by tushar

Math
0=1/9x+10/7y+8/7
Monday, June 6, 2016 by Anonymous

Math
Orienteering is a sport that involves navigating your way to a series of checkpoints with the aid of a map and compass. The goal is to find each point on the map as quickly as possible. A typical compass used for orienteering is divided into 360 degree where 0 degrees is north...
Monday, June 6, 2016 by Cameron

Math
Jason measured rainfall for a science project. Last week it rained 3 1/8 inches in all. This week it rained 1 7/8 inches in one day and 2 3/4 inches on another. How many more inches did it rain this week then last week? Please explain how you got your anwser
Monday, June 6, 2016 by Cindy

Math
You decide to buy a 60 in plasma TV. You borrow $4300 from the electronics store at1.8% per month simple interest, with no payments due for 2 years from the date of purchase. How much will you owe on the loan after 15 months?
Monday, June 6, 2016 by Mike

Math
Kurt cut pizzas into wedges measuring 40 degrees. If each person eats one piece of pizza, how many people could he feed with two whole pizzas?
Monday, June 6, 2016 by Lena

Math
Orienteering is a sport that involves navigating your way to a series of checkpoints with the aid of a map and compass. The goal is to find each point on the map as quickly as possible. A typical compass used for orienteering is divided into 360 degree where 0 degrees is north...
Monday, June 6, 2016 by Cameron

Math (*-*)
which is least 3/10 3/7 3/4
Monday, June 6, 2016 by Bryce

Math
Maddie's bowling score was 230 last week, but only 190 this week. What was the percent decrease in Maddie's score? A. 1.74% B. 2.11% C. 17.4% D. 21.1%
Monday, June 6, 2016 by Roman

algebra
a math exam is marked out of 120. draw a conversion graph to change the following marks to percentages. a_80 b_110 c_54 d_72
Monday, June 6, 2016 by emily

Math
I sent this in a little while back but the file got corrupted and I have to re do it and I forgot the answer please if it is not done today I fail the year. Simplify the polynomial 16x^2 + 2 + 2x - 15x^2 - 1 + 14x A:31x^2 + 16x + 1*** B:x^2 - 12x + 1 C:x^2 + 16x + 1 D:x^2 + ...
Monday, June 6, 2016 by Random

Math
On friday I'm gonna hang out with two friends. What are the chances that one of them is a guy if: A: one is a girl B: one is a girl born in december You may assume the following things: - Female and male friends are just as likely in general - All months have the same ...
Monday, June 6, 2016 by Anonymous

Please help with my grandsons math
a snail travels about 0.13 cm in one minutes.how far would it travel in 7 minutes if it keeps up the same speed?About how long would it take to go 3 m?
Monday, June 6, 2016 by Martha

Math
The farmer has chickens and rabbit and has 200 legs and 72 heads how many chickens and rabbits are there
Monday, June 6, 2016 by Anonymous

MATH
A gardener is building a raised flower bed that measures 16′ long, 5′ wide and 1′ deep. If the gardener wants to fill the flower bed 3/4 full, how many cubic feet of gardening soil does he need to buy? 60 Is this right?
Monday, June 6, 2016 by PENNI

Math
Three jackals and three coyotes are on a trek across the Mokalani Plateau when they come to a river filled with carnivorous fish. There is a rowboat in sight, and the party decides to use it. (Both species are known for their cleverness.) However, the boat is too small for any...
Monday, June 6, 2016 by Anonymous

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

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