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March 5, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

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math
Your business provides a service to local residents. Your fixed costs are $2,000 per month, and you expect 40 customers per month. The variable cost associated with each service is $35. 1. Using cost-based pricing and a markup of 20%, what should the price be? Show ...
Wednesday, February 25, 2015 at 4:14pm

Math (Ratios and Similar Polygons)
a baseball team played 140 regular season games. The ratio of the number of games they won to the number of games they lost was 3 - 4 how many games did they win? how many games did they lose? I just need help on a better way of understanding it.
Wednesday, February 25, 2015 at 4:02pm

math
A number K increased by 10 is the same as 24 How would you write this as an equation
Wednesday, February 25, 2015 at 4:00pm

math
I don't get this I've been absent for 3 weeks On a math quiz Mary score 3 points for each of the 12 multiple-choice question she answered correctly and five points for each of the eight free response question she answered correctly. What was the total number of points ...
Wednesday, February 25, 2015 at 3:43pm

math
john told raquel that if he spent up to $30 from his saving account, his savings account would have 3/4 as much in it as it has now. From John's statement, raquel can deduce that the least amount of money that john could have in his savings account now is what?
Wednesday, February 25, 2015 at 3:33pm

Math
Find the sum of the interior angles of a nonagon. (1 point) 140° 1,620° 1,260°------ 1,450° My teacher showed this question and she explained the answer was the 3rd one but i just dont get it
Wednesday, February 25, 2015 at 3:16pm

math
I need a little help on my math.Lesson 5: Square Roots and Irrational Numbers Math 7 B Unit 2: Measurement. on CONNECTIONS ACADEMY. PLEASE :-(
Wednesday, February 25, 2015 at 2:31pm

math
OQRS IS A QUADRILATERAL SUCH THAT OQ= -6,3 OR= -3,7 AND OS 1,5. T IS THE POINT ON OQ SUCH THAT OT:TQ= 2:2. PROVE QRST IS A PARALLELOGRAM
Wednesday, February 25, 2015 at 2:30pm

Math
What is the approximate volume of a sphere with a radius of 7.16 cm? Use 3.14 to approximate pi and round your answer to two decimal places.
Wednesday, February 25, 2015 at 1:59pm

math
A vector can be used to represent the path of a drill tip used to bore a deep mine shaft in Sudbury one quarter of the way to the centre of the Earth. Represent the vector using a directed line segment and Cartesian co-ordinates and describe which representation may be more ...
Wednesday, February 25, 2015 at 1:46pm

Math SO HARD :C
Ah! This is so hard! From midnight to 6:00 am the temperature rose 8 degrees C. At 6:00 am the temperature was -20 degrees C. What was the temperature at midnight? It's supposed to involve integers...
Wednesday, February 25, 2015 at 12:57pm

Math
Ah! This is so hard! From midnight to 6:00 am the temperature rose 8 degrees C. At 6:00 am the temperature was -20 degrees C. What was the temperature at midnight? It's supposed to involve integers...
Wednesday, February 25, 2015 at 12:56pm

Algebra 2
D'Andre has decided that he needs to get more exercise, so he is building a running regimen for himself. He decides that, beginning on Sunday, he'll fun 10 feet. On each subseqeunt day he'll double the distance he ran the previous day. So he'll run 20 feet on ...
Wednesday, February 25, 2015 at 12:50pm

Algebra 2
D'Andre has decided that he needs to get more exercise, so he is building a running regimen for himself. He decides that, beginning on Sunday, he'll fun 10 feet. On each subsequent day he'll double the distance he ran the previous day. So he'll run 20 feet on ...
Wednesday, February 25, 2015 at 11:52am

math
Two cups, two plates, and a pot cost $10.20 at a garage sale. A cup costs twice as much as a plate. The pot costs $3 more than a cup. What is the price of the pot? Explain how you got your answer.
Wednesday, February 25, 2015 at 11:07am

College Math (Calculus)
Suppose the length of a rectangular box, with lengths x,y,z are changing at the following rates dx/dt = 2 cm /sec dy/dt = -3 cm /sec dz/dt = 1 cm/ sec when x =4, y=3 z=2, Find i) Rate at which volume is changing wrt time, ii) Rate at which the diagonal length of the box is ...
Wednesday, February 25, 2015 at 11:00am

math
Which equation is a function of x?
Wednesday, February 25, 2015 at 10:54am

Math
1. Scale is 1 in.= 3 ft. If the room is 8 inches long and 2 inches wide on a blueprint, how much will it costs to clean the carpet if the costs is $15 per square foot?
Wednesday, February 25, 2015 at 10:43am

My Grades
My math grade is an B+ should I do a retake for extra credit? This will consist of extra credit opportunity's in portfolios and test. Thank you very much! -Emolga
Wednesday, February 25, 2015 at 10:36am

math
If Lwandi got her test back and was very happy because she got 85%. To get full marks she needed to get 60 marks. How many marks did she lose?
Wednesday, February 25, 2015 at 10:31am

math
If Lwandi got her test back and was very happy because she got 85%. To get full marks she needed to get 60 marks. How many marks did she lose?
Wednesday, February 25, 2015 at 10:30am

math
what is the total investment after 2 years if 400$ at 9% is compounded semi-annually for 2 years
Wednesday, February 25, 2015 at 10:29am

Math
Two cups, two plates, and a pot cost $10.20 at a garage sale. A cup costs twice as much as a plate. The pot costs $3 more than a cup. What is the price of the pot? Explain how you got your answer.
Wednesday, February 25, 2015 at 10:22am

math
A snial crewls at 5.0 cm/min. what ia the snail's pace in feet per second
Wednesday, February 25, 2015 at 10:05am

math
Find the mean of the following set of data. Round your answer to two decimal places. 13, 11, 4, 5, 6, 9, 10, 12, 15, 16
Wednesday, February 25, 2015 at 9:32am

Math
IF A PERSON TRAVELED 4200 MILES IN 6 HOURS. HOW MANY MPH WERE THEY GOING?
Wednesday, February 25, 2015 at 9:23am

Math- Calc 1
1. At what point does the normal line to the curve x^2 - XY + Y^2 = 3 at the point (-1,1) intersect the curve again? 2. Find the constants A, B so that if Y=A*sin X + B cos X, then Y satisfies the differential equation Y" + 2Y = 0. 3. Find the points on he graph of Y = e^...
Wednesday, February 25, 2015 at 8:52am

Math
jack was one third as young as her grandmother 15 years ago if the sum of their ages is now 110 how old is jacqueline grandmother
Wednesday, February 25, 2015 at 8:41am

math
If √6 is the geometric mean between 6 and another number, then the number is: 1 2 6
Wednesday, February 25, 2015 at 8:39am

Homework (Math)
I know that I'm using the Law of Cosines, but I'm confused on how to solve. I have to also round my answers to the nearest tenth for degrees and to the nearest hundredth for sides. Given: A= 55 degrees b=3 c=10 Find: a= B= C=
Wednesday, February 25, 2015 at 7:58am

Math Check
Can someone check to see if I'm right? Thanks! Question: Determine if v and w are equal If v = Ray AB and w = Ray CD, where A (23, 11), B (10, 15), C (13, 15), and D (0, 11. (True or False) My answer: False
Wednesday, February 25, 2015 at 7:58am

Math
Which of the following correctly lists angle pairs that have the same sums of 180 degrees & 90 degrees? A. adjacent angles, congruent angles B. complementary angles, vertical angles C. supplementary angles, complementary angles*** D. vertical angles, adjacent angles Is it C?
Wednesday, February 25, 2015 at 2:41am

Math
An angle measures 47 degrees. What are the measures of the angle's complement and supplement? A. complement, 43 (degrees), supplement, 133 B. complement, 133, supplement, 43 C. complement, 53, supplement, 143 D. complement, 143, supplement, 53 I'm not sure of the ...
Wednesday, February 25, 2015 at 2:38am

math
Rodney and josiah each bought a package of the same kind of cookies at the store . Rodney ate 1/2 package of cookies on monday and 1/3 of the same package on tuesday. Josiah ate 5/12 of his packsge on monday and 1/2 of the package ontuesday. Who ate more? How much more?
Wednesday, February 25, 2015 at 1:23am

math
Beth walked 1/3 of a mile from her house to her friends house, 1/4 of a mile to the post office, and then anotjer 1/2 mile from the post office bsck home. How far did beth walk?
Wednesday, February 25, 2015 at 1:15am

Math Alg. 2
Write a recursive rule for the sequence: 1,2,12,56,272... and 2,5,11,26,59... and -3,-2,5,-3,-2... I can't find the pattern in these and am unsure on how to write the rule. Thanks
Wednesday, February 25, 2015 at 1:12am

Math Algebra
Explain why there are not a function f and an initial value x(sub)0, such that a function's first three iterates are x1=2, x2=2, and x3=8.
Wednesday, February 25, 2015 at 1:08am

Math
What is the unit rate of ounces. A hint is 48 ounces cost costs 3.00 dollars. I divided 48 by three but and got 16 cents but when I multiply by 48 it doesn't equal 3 dollars
Wednesday, February 25, 2015 at 12:27am

Math- Calc 1
1. At what point does the normal line to the curve x^2 - XY + Y^2 = 3 at the point (1,1) intersect the curve again? 2. Find the constants A, B so that if Y = Asin X = B cos X, then Y satisfies the differential equation Y" + 2Y = 0. 3. Find the points om he graph of Y - e^...
Tuesday, February 24, 2015 at 11:51pm

math 050
a piece of wire to 2/7 m long to be cut into 6 pieces of the same length what is the length of each piece
Tuesday, February 24, 2015 at 11:43pm

Math
Gordon Moore stated that the number of transistors that can be placed on an integrated circuit will double every 2 years. This trend is known as Moore's Law. In 1978, the Intel 8086 held 29,000 transistors on an integrated circuit. a. Write a function that represents Moore...
Tuesday, February 24, 2015 at 11:30pm

Homework Help (Math)
Write your answer in <x,y> for the following question: If x=<6,-21>, then 1/3x.
Tuesday, February 24, 2015 at 10:49pm

Math Check
Hi! Can someone check this for me? Thanks! Question: Determine if v and w are equal If v = Ray AB and w = Ray CD, where A (23, 11), B (10, 15), C (13, 15), and D (0, 11. (True or False) My answer: False
Tuesday, February 24, 2015 at 10:48pm

Math Work
I know that I'm using the Law of Cosines, but I'm confused on how to solve. I have to also round my answers to the nearest tenth for degrees and to the nearest hundredth for sides Given: A= 55 degrees b=3 c=10 Find: a= B= C=
Tuesday, February 24, 2015 at 10:46pm

Math - Algebra 1
The number of concert tickets sold doubles every hour. After 12 hours, all of the tickets are sold. After how many hours are about one-fourth of the tickets sold? Explain your reasoning.
Tuesday, February 24, 2015 at 10:39pm

math
3x+4=19 X=5 5+C/9=31 C=-324 11=2Y-15 Y=13
Tuesday, February 24, 2015 at 10:13pm

Math
19>-n/5+9
Tuesday, February 24, 2015 at 10:02pm

math
A coin bank contains $2.80 in dimes and quarters. The bank contains the same number of each coin. How many of each coin does the bank contain. I have to write an expression.
Tuesday, February 24, 2015 at 9:56pm

math
The ratio is 2:7>their mom gives each of them the 15 marbles and now David has twice as many marbles as Charlie.How many marbles does each boy have
Tuesday, February 24, 2015 at 9:40pm

math
A rectangle has an area of 48 square feet and a length of 10 feet. What is its width?
Tuesday, February 24, 2015 at 9:36pm

math
A length of string that is 22 feet long is being cut into piece that are 1/3 foot long. How many pieces will there be?
Tuesday, February 24, 2015 at 9:16pm

math
A computer store charges a $40 service fee plus $35 for each hour it takes to repair a computer. Write an expression that gives the total cost of a repair that takes h hours. 40+35h A fitness club charges a $100 activation fee and $33 for each month. Write an expression for ...
Tuesday, February 24, 2015 at 9:14pm

math
a box contains 3 red marbles, 4 white marbles and 5 yellow marbles.find the probability that a red marble and then a yellow marble to be pick up on two successives drawing then there is a replacement of the marbles
Tuesday, February 24, 2015 at 9:11pm

Math
6+9r-4(3r-7)
Tuesday, February 24, 2015 at 8:41pm

math
Answers (not puzzle, math answers) to what do you call it when someone pays back a quick loan. I know the answer is a sudden debt pay off i need help writing them out(math part).
Tuesday, February 24, 2015 at 8:38pm

math
-32 is less than or equal to 24-2f
Tuesday, February 24, 2015 at 8:36pm

math
A store sells one model of bicycle for $250. a. Write an expression for the amount of money the store receives if it sells b bicycles. b. How much would the store make if it sells 5 bicycles.
Tuesday, February 24, 2015 at 8:30pm

math
2y-3(-2y-4y+5)
Tuesday, February 24, 2015 at 8:23pm

math
Brian cut an extra large round pizza into 8 pieces. Seven of th pieces were eaten. What angle measures of pizza is left?
Tuesday, February 24, 2015 at 8:17pm

math
75=m/3+10
Tuesday, February 24, 2015 at 8:16pm

math
Consider the Standard Normal curve: (a) Find the area between z = -0.45 and z = 1.45 (b) Find the value of z such that the area to the right of z is 1.5%.
Tuesday, February 24, 2015 at 8:05pm

Math
Describe how to rename an improper fraction as a mixed number. Use an example to explain. I don't get the "renaming" part. Does it mean to explain how to convert it?
Tuesday, February 24, 2015 at 7:43pm

math
The perimeter of a rectangular window is 634 inches. If the length of the window is 205 inches, what is the width of the window? Is the answer 112 inches?
Tuesday, February 24, 2015 at 7:13pm

Math
Look for the angle (θ) between the vectors. Remember to round your answer to the nearest tenth. a.) u=<3,2> v= <4,0> b.) u = 2i - 3j v = i - 2j
Tuesday, February 24, 2015 at 6:43pm

math
The accompanying tree diagram represents a two-stage experiment. (Let x = 0.3, y = 0.7, r = 0.55, s = 0.45, t = 0.55, and w = 0.45.) (a) Find P(A) · P(D | A). Correct: Your answer is correct. (b) Find P(B) · P(D | B). Incorrect: Your answer is incorrect. (c) Find...
Tuesday, February 24, 2015 at 6:34pm

maths
mrs. brittle is planning a party for all students who get a level 3 or 4 on math test.using a total of $112.00 she plans to get a pizza that costs $12.00 each and drinks that $0.50 each. if she purchases four times as many as pizzas how many of each should she buy ?
Tuesday, February 24, 2015 at 6:20pm

maths
mrs. brittle is planning a party for all students who get a level 3 or 4 on math test.using a total of $112.00 she plans to get a pizza that costs $12.00 each and drinks that $0.50 each. if she purchases four times as many as pizzas how many of each should she buy ?
Tuesday, February 24, 2015 at 6:19pm

MATH I HATE problem solving~ms sue and others plz
Mateo played the same card game that Jill played. (other story problem red cards r - and yellow cards r +) He drew some cards. After he drew 7 red cards, he gave back 2 yellow cards. His final score was -3. What was his score before he drew the 7 red cards?
Tuesday, February 24, 2015 at 5:50pm

MATH
from 6:30 am to 4:30 pm on Monday, the temperature rose 12 degreesC. From 4:30 pm on Monday to 5:45 am on Tuesday, the temperature dropped 7 degreesC. The temperature at 5:45 am on Tuesday was -2 degreesC. What was the temperature at 6:30 am on Monday? plz i need ur help this ...
Tuesday, February 24, 2015 at 5:36pm

math
How would i simplify this: (x-1)(x+2)-(x-3)^2 I keel getting -3 -11, but the right answer is 7x - 11
Tuesday, February 24, 2015 at 5:22pm

math
11/21 or 9/17. which one is greater and what is the work/common denominaters
Tuesday, February 24, 2015 at 5:14pm

MATH AGAIN~Ms. Sue
from 4:00 P.M. to 3:00 A.M., the temperature dropped 6 degrees Fahrenheit. At 3:00 A.M.,the temperature was -4 degrees F. What was the temperature at 4:00 P.M.??? Ms. Sue i trust u more plz answer this thank u
Tuesday, February 24, 2015 at 5:05pm

Math - Algebra 1
You deposit $9000 in a savings account that earns 3.6% annual interest compounded monthly. You also save $40 per month in a safe at home. Write a function C(t) = b(t) + h(t) where b(t) represents the balance of your savings account and h(t) represents the amount in your safe ...
Tuesday, February 24, 2015 at 5:03pm

Math
Which of the following makes the sentence true? 7t + 26=61 (3,5,7,9)
Tuesday, February 24, 2015 at 4:46pm

MATH
What does MORE THAN mean does it mean + or */times? a. + b. */times
Tuesday, February 24, 2015 at 4:42pm

Math
Irene counted 12 brown houses in her neighborhood. The 12 houses represent 16% of her neighborhood. How many houses are in her neighborhood.
Tuesday, February 24, 2015 at 4:40pm

MATH
What does 0 plus 0.7 minus 0.1111111118 =
Tuesday, February 24, 2015 at 4:35pm

Math
A rental car company charges a fixed fee of $15.00 plus $.12 per mile. Write an equation to find the total cost, y, for any number of miles, x
Tuesday, February 24, 2015 at 4:30pm

math
what is -33 plus y equals -39 minus +87
Tuesday, February 24, 2015 at 4:19pm

Math
Hello! I need help with this question. I know that I'm using the Law of Sines, but I'm confused on how to solve. I have to also round my answers to the nearest tenth for degrees and to the nearest hundredth for sides. Thanks! Given: A = 60 degrees a = 9 c = 10 Find: b...
Tuesday, February 24, 2015 at 3:46pm

Math
So I'm just having a complete mind block. I found my answer which is 13.72. It says to round to the nearest 10th. So I have two options here I guess haha. 13.7 or 14. I can't decide which though. Could someone please help?
Tuesday, February 24, 2015 at 3:28pm

Computers
1) What is the purpose of computer simulations? A. to provide virtual hands-on experience when actual hands-on experience is not possible*** B. to provide an online version of a printed text C. to provide clip art about the subject being studied D. to provide a real life hands...
Tuesday, February 24, 2015 at 1:19pm

Math/ Compouded semiannually ?'s
Jessica plans to purchase a car in one year at a cost of $30,000. How much should be invested in an account paying 10% compounded semiannually to have the funds needed. a. $27,210.90 b. $3,512.06 c. $24,793.50 d. $27,272.70 The Lee family plans to buy a new house in 2 years ...
Tuesday, February 24, 2015 at 12:11pm

math
An airplane travels with a speed of 145 mph in calm air. the wind is blowing with a velocity of 23 mph from N72degreesE. If the plane is headed in a direction N63W, find the magnitude of the speed and the direction of the airplane with reference to the ground. In what ...
Tuesday, February 24, 2015 at 12:07pm

math
Kim and Kent are on opposite sides of a canal, pulling a barge with tow ropes. Kim exerts a force of 50N at 20 degrees to the canal and Kent pulls at an angle of 15 degrees with just enough force so that the resultant force vector is directly along the canal. Find the number ...
Tuesday, February 24, 2015 at 12:01pm

Math homework
Alex can read 8 pages in 20 minutes. How long will it take him to read 20 pages?
Tuesday, February 24, 2015 at 11:07am

math
(1,1) and (13,3) (0,4) and (14,0) What are the coordinates for the intersection of the two lines?
Tuesday, February 24, 2015 at 10:26am

math
An oval track is made by erecting semi circles on each end of a 58 m by 116 m rectangle. Find the length of the track and the area enclosed by the track.
Tuesday, February 24, 2015 at 7:57am

business math
A local Barnes and Noble paid a $79.44 net price for each calculus textbook. The publisher offered a 20% trade discount. What was the publisher’s list price?
Tuesday, February 24, 2015 at 6:43am

math
Use the information below to write and simplify an expression to find the total weight of the medals won by the top medal-winning nations in the 2012 London Olympic Games. The three types of medals have different weights. U.S.A. Gold=46 Silver=29 Bronze=29 China Gold=38 Silver...
Tuesday, February 24, 2015 at 5:56am

math
William earns $13 an hour working at a movie theater. Last week he worked h hours at the concession stand and three times as many hours at the ticket counter. Write and simplify an expression for the amount of money William earned last week. THANK YOU!
Tuesday, February 24, 2015 at 5:43am

math
Combine like terms to get equivalent expression: 0.5(x^4 - 3)+12 ...inside parenthesis is x to the power of 4 minus 3. THANK YOU!
Tuesday, February 24, 2015 at 5:30am

Math
Why is zero not in the doamin of the logarithmic functions y= log3 x and y = log5 x?
Tuesday, February 24, 2015 at 5:14am

statistics
If np is more or equal to 5 and nq is more or equal to 5, estimate P(fewer than 6) with n = 14 and p = 0.5 by using the normal distribution as an approximation to the binomial distribution; if np < 5 or nq < 5, then state that the normal approximation is not suitable. ...
Tuesday, February 24, 2015 at 4:35am

math
hakiim invested 15000 he put part of it in a term deposit that paid 4% per annum and the remainder in a treasury bill that paing 5% per annum after one year the total interest was 690 how much did hakiim invest at each rate
Tuesday, February 24, 2015 at 2:48am

math
The ratio of Juma’s and Akinyi's earnings was 5:3. Juma’s earnings rose to shilling 8400 after an increase of 12%. Calculate the percentage increase in Akinyi’s earning given that the sum of their new earnings was shilling 14100. (b) Juma and Akinyi ...
Tuesday, February 24, 2015 at 1:50am

math
Solve the equation: 2cos2θ = 1 for 0° ≤ θ ≤ 360. 2θ = cos-1(1/2) 2θ = 60° θ= 30,210 330
Tuesday, February 24, 2015 at 1:47am

math
An angle of 1.8 radians at the center of the circle subtends an arc of length 23.4cm. Find: (a) The radius of the circle (b) The area of the sector enclosed by the arc and the radii.
Tuesday, February 24, 2015 at 1:31am

math
A solid metal sphere of radius 4.2cm was melted and molten material used to make a cube. Find to 3 significant figures the length of the side of the cube.
Tuesday, February 24, 2015 at 1:29am

math
9-n/5=19
Tuesday, February 24, 2015 at 12:47am

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