Monday
January 16, 2017

Homework Help: Math

Branches of Math

Recent Math Questions

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

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 HELP

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

Machado
math
Saturday, December 17, 2016 by Benzzf

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!

Math
Find the value of n (n is an integer). (n+7)! / n!(n+6)(n+4) = 9!/3
Friday, December 16, 2016 by Diana

math
The length of a rectangle is 7 units and its width is 5 units. What is the approximate length of the diagonal of the rectangle? A. 4.9 units B. 6 units C. 8.6 units D. 9 units
Friday, December 16, 2016 by tyler

Math
7 T 200 lbs - 2 T 700 lb? I think its 2 d 6 h
Friday, December 16, 2016 by Naegirl

math
Tasha finally bought a new car. She uses it mainly to drive to work, which involves a lot of driving on gravel roads. She was concerned about damage to her windshield from flying stones. In a journal, she kept track of how many scratches she could see. Tasha plotted the number...
Friday, December 16, 2016 by rrb

math
What is the monomial if a cube of a monomial is:1/8 a^27
Friday, December 16, 2016 by maria

MATH
WHAT IS 23.25 ROUNDED TO Im confused but I think it can stay the same or to 30
Friday, December 16, 2016 by MEGAN

math
4/9 b^6 writes as a square of a monomial is it (4/9 b^6)/2
Friday, December 16, 2016 by maria

math
Zack orders a box of 80 sweaters manufactured from a factory. He needs to check the quality of 30% of the sweaters. Select all of the equations that Zack could use to find x, the number of sweaters he needs to check.
Friday, December 16, 2016 by Anonymous

math
If v=t^2-2t+1. Find s given that v=4 when t=1.
Friday, December 16, 2016 by pius

math
The faces of a green tetrahedron die are marked 10,20,30 and 40. All three die are thrown together and the scores added. Find the probability that the total is more than 30 but less than 35.
Friday, December 16, 2016 by pius

Math
If a right triangle has legs of 5 inches and 12 inches, use the Pythagorean theorem to find the length of the hypotenuse
Friday, December 16, 2016 by Ashlene

math
What number is 73% of 215? (1 point) 215 = 0.73n n = 0.73 × 215 ***** 0.73 = n × 215 215 = 73n 2. What percent of 94 is 23? (1 point) n/94 = 23/100 23/94 = n/100 94/n = 23/100 **** 23/94 = 100/n 3. 80 is 40% of what number? (1 point) 200 32 20 *** 112...
Friday, December 16, 2016 by me help

Math
If a right triangle has a leg of 13 feet and a hypotenuse of 22 feet what is the length of the other leg
Friday, December 16, 2016 by Ashlene

Algebra
Can someone help me with these two equations, I need to solve them by completing the square, I know the answers, (Number 1 is -11.56, 1.56, and number 2 is -10.35, 1.35) I just can’t remember how to get those numbers again, I have so much math on my paper I ...
Friday, December 16, 2016 by Aaron

math
A body moves in a straight line so that its distance 'x' from a fixed point after 't' seconds is given by the formula x=9t^2÷2-t^3Ã&midd​ot;2 find: a; its velocity after 2 seconds b; its velocity when the acceleration is 0???
Friday, December 16, 2016 by pius

Math (please help!!)
What information is incorrectly placed in the table? i65.tinypic(.)com/301mqo4.jpg I really don't know, can someone give me a hint?
Friday, December 16, 2016 by Ren

math
a 19 foot ladder leans against the top of a house. if the house is 15ft high how far is the foot of the ladder from the base of the building.
Friday, December 16, 2016 by grazzy

math
Part of the road is to be on a parabolic curve given by a function of the form y = ax2 + bx + c where x and y are local co-ordinates. The road alignment must pass through the following 3 points:- x = 150m y = 190.650m x = 300m y = 611.450m x = 450m y = 831.141m 5.1. Substitute...
Friday, December 16, 2016 by k

Math
a photocopier increase the sides of a square in a ratio of 5:4. what percentage has the size increased?
Friday, December 16, 2016 by Sarah

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. Please show working out, thanks.
Friday, December 16, 2016 by Anonymous

Math
By direct use of the definition of a derivative, the derivative of f(x) = 1/x ?
Friday, December 16, 2016 by Jolly

Math - Coordinate Geometry
Find the equation of the line which passes through the point (6, -4) and is parallel to to the line 2x-3y+3=0. Please show working out as well, thanks.
Friday, December 16, 2016 by Anonymous

Math
Binomial distribution if mean 10 AND VARIANCE 9 find mide
Friday, December 16, 2016 by Anonymous

math
If I drove 3078 miles on Monday an drove 582 miles on Tuesday how many miles did I drive altogether.
Friday, December 16, 2016 by nydria

Math 4th Grade
example teacher has on sheet is: 400 = 10 x h 40 =10 x 4 400 = 10 x 40 So, h = 40 so how does my grandson do this problem the same way? 280 = 2 x m This grandma has no idea. Thanks for you help.
Thursday, December 15, 2016 by Robin

Measurement/math
A wheel rotates 35 times going 100 feet. How big around is the wheel? I don't know where to start....
Thursday, December 15, 2016 by Rochelle

Math
Emily has 5u game cards. John has 8/3 fewer cards than Emily. Find the average number of game cards that Emily and John have in all in terms of u.
Thursday, December 15, 2016 by Anonymous

MATH 2
It is found that the number of raisins in a box of a popular cereal is normally distributed, with a mean of 133 raisins per box and a standard deviation of 10 raisins. My cereal box has 147 raisins. What is the z-score for this box of cereal?
Thursday, December 15, 2016 by James

Math 1
In a study of 500 men, diastolic blood pressure was found to be approximately normally distributed, with a mean of 82 millimeters (mm) of mercury and standard deviation of 10 millimeters. Use the 68-95-99.7% rule to determine what percentage of the test group had a diastolic ...
Thursday, December 15, 2016 by Amy

Math
Jason earns &10.59 per hour. He works 5.75 hours Saturday how much money does he earn Saturday? I know the answer is $60.89 but there's two answer so I don't know if you round 60.89
Thursday, December 15, 2016 by Jenny

MATH
Freddy paid w dollars for a camera and $120 for an additional camera lens. If the sales tax is 8%, how much did Freddy pay for the camera and lens, including the sales tax?
Thursday, December 15, 2016 by Anonymous

Math
In a study of 800 men,diastolic blood pressure was found to be approximately normally distributed, with a mean of 84 millimeters (mm) of mercury and standard deviation of 10 millimeters. Use the 68-95-99.7% rule to determine what percentage of the test group had a diastolic ...
Thursday, December 15, 2016 by Joe

math
Emily has 5u game cards. John has 8/13 fewer game cards than Emily. Find the average number of game cards that Emily and John have in all in terms of u.
Thursday, December 15, 2016 by Anonymous

math algebriac expressions
If 6 tablespoons are equivalent to 1 fluid ounce, how many fluid ounces are in (10t-4) tablespoons?
Thursday, December 15, 2016 by Anonymous

Business Math
3.) The demand equation for a certain product is q=500-40p+p^2 here p is the price per unit (in dollars) and q is the quantity of units demanded (in thousands). Find the point elasticity of demand when p = 15. If this price of 15 is increased by 1/2%, what is the approximate ...
Thursday, December 15, 2016 by pypski

Math
A movie theater charges $11 for each adult and $6 for each ticket. one day, they sold 163 tickets and made $1578. How many of each ticket did they sell?
Thursday, December 15, 2016 by ------------

Math
Simplify 4 (n-6)
Thursday, December 15, 2016 by Caleb

Math
A bag is full of marbles. 10 blue, 11 red, 3 green, 16 yellow. What percentage of marbles are yellow
Thursday, December 15, 2016 by Caleb

MATH :(
In one version of equations i cant get... Its really messing me up!
Thursday, December 15, 2016 by WHY

Math
Two fractions with different denominators have a sum of 11/12 what are two possible addends that result in the sum?
Thursday, December 15, 2016 by Andrea

Math
Statistical questions will have. A)Only one correct answer**** B)A variety of answers C)Fewer than three answers D)No answers
Thursday, December 15, 2016 by Anon

Math
My son has the numbers 1-12. In a square all sides must add up to 25. Each number can only be used once apart from the corners as they will be used twice to form the square pleaseee hellpppp
Thursday, December 15, 2016 by Stacy

Math
I'm really confused on how to do this, Can someone help walk me through? An object is placed in front of a concave mirror as shown in the diagram below. A. Draw at least two rays that demonstrate how this mirror produces an image. (4 points) Image B. Describe the image ...
Thursday, December 15, 2016 by Mailbox-Kun

math
Fariza gave .3 of her flowers to her sister, 4/7 of the remainder to her brother. Fariza remained with 45 flowers. a) Calculate the percentage of flowers Fariza kept for herself. b) How many flowers Fariza had at the begining? c) Calculate how many more flowers her brother ...
Thursday, December 15, 2016 by indira

math
sharon's onions cost $2.75/200g and Arnold's Onions cost $3.00/1/4kg a) Which of the vendors is selling onions more expensive/ b) How much would 1kg of onions cost?
Thursday, December 15, 2016 by indira

math
please help me im really confused i keep changing my answer and i have no clue what the answer is write a rule for the function represented by the table input (x) 0, 1, 2, 3, 4, output (y) 3, 6, 9, 12, 15,
Thursday, December 15, 2016 by depression

Math Help
Math unit test. (1) write the fraction 1/8 as a percent. round to the nearest hundredth of a percent where necessary. 12.50% 37.50%**** 62.50% 80.00%
Thursday, December 15, 2016 by Jimmy

math
46 + 2d = 10 + 5d How would i do this problem step by step. I need these notes for the future
Thursday, December 15, 2016 by edgard

math
The scatterplot shows the number of minutes spent reading (x) and the number of pages read (y) by each of seven students last night. Use the labeled points to create a linear model that predicts the number of pages that a typical student reads in x minutes. Which equation ...
Thursday, December 15, 2016 by maddie

MATH HELP PLEASE
Find the digit that makes _1,258 divisible by 9? List all the factors of the number 30? Find the prime factorization of the number 168?
Thursday, December 15, 2016 by bler

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