Tuesday
July 28, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
If a recipe calls for 2/3 cups of sugar but I only want to make 1/4 of the recipe, how much sugar do I need?
Wednesday, July 22, 2015 by Sam

Finite Math
Can someone please help me. I am not sure to work the following matrices. If A^4 = -3 4 -4 5 and A^5= 4 -5 5 -6 What is A? Can you show me how you got this? Thank you so much ;)
Tuesday, July 21, 2015 by Katy

Math
A muffin recipe calls for 2 1/2 cups of flour for every 2/3 cups of sugar. How many cups of flour should be used when 4 cups of sugar are used?
Tuesday, July 21, 2015 by Zero

Math
Find 3 consecutive positive integers whose product is 5 more than the cube of the middle number. Tried x*(x+1)*(x+2) = (x+1)^3 + 5, but that solves to x = -6 which isn't positive.
Tuesday, July 21, 2015 by Jim

Math
A locker combination has three nonzero digits, with no repeated digits. If the first digit is a 2, what is the probability the second digit is also even?
Tuesday, July 21, 2015 by Help369

Math
Hannah rolls two number cubes. What is the probability that both numbers are greater than 3?
Tuesday, July 21, 2015 by Help369

math
If n is a positive integer, n! is the product of the first n positive integers. For example, 4! = 4 x 3 x 2 x 1 =24. If u and v are positive integers and u!=v! x 53, then v could equal A. 6 B. 8 C. 56 D. 57
Tuesday, July 21, 2015 by Ryan

math
If the lengths of the sides of a rectangle are integers, and if one side is 2 more than another, then the perimeter could equal A. 1998 B. 1999 C. 2000 D. 2002 I started this, but I'm not sure what they're asking and I don't know how to solve it.
Tuesday, July 21, 2015 by Ryan

math
Of the following, which must be true whenever x^1998 = y^1998? A. x^999=y^999 B. x^1997=y^1997 C. x^1999=y^1999 D. x^2000=y^1000 I tried plugging in 2 for x and y, but the calculator said overflow...
Tuesday, July 21, 2015 by Ryan

math
a 12 cm by 16 cm picture is mounted with border of uniform width on a rectangular frame. if the total area of the border is 288 cm2, what is the length of the side of the frame?
Tuesday, July 21, 2015 by nicole

Math
The difference between two numbers is 45. Three times the larger number less five times the smaller number equals 75. What are the two numbers?
Tuesday, July 21, 2015 by serena

Accounting,business studies,economics,math literacy
What kind of job can i get ?
Tuesday, July 21, 2015 by Sinethemba

MATH- URGENT!
the athletic department ordered a total of 29 basketballs and footballs for $1000. if the basketballs cost $30 each and the footballs cost $40 each, how many footballs were purchased?
Tuesday, July 21, 2015 by candie

math
the athletic department ordered a total of 29 basketballs and footballs for $1000. if the basketballs cost $30 each and the footballs cost $40 each, how many footballs were purchased?
Tuesday, July 21, 2015 by candie

math
2. Suppose you obtain a $3,000 T-note with a 3% annual rate, paid quarterly, with maturity in 5 years. How much interest will you earn?
Tuesday, July 21, 2015 by Pat

math
find the linear differential equation that has y=5-x+2e^xsin3x as a particular solution
Tuesday, July 21, 2015 by toby

URGENT MATH!!
Q1: Robert can paint a room in 12 hours. Dennis and Vince can paint the room in 10 hours & 9 hours respectively. If Dennis and Vince work together for 2 hours, How long will it take Robert to finish the job? I think it's 12 (because it says it, but I think the question was...
Tuesday, July 21, 2015 by Victoria

statistics in math
what is an confidence interval?
Monday, July 20, 2015 by Annie George

Math
A piece of rectangular cloth has an area of 40 square feet. Its length is 3 feet longer than its width. If the width of the rectangular cloth is represented as x, which of the following represents the length?
Monday, July 20, 2015 by kate

Math
what is an confidence interval?
Monday, July 20, 2015 by Annie George

math
At the rate of $.80 cents per $100, how much does it cost to insure a car against fire and theft for $ 1650
Monday, July 20, 2015 by Anonymous

math
A rectangular rug is 12.5 feet long and 10 feet wide. The rug needs to be reduced by a factor of es026-1.jpg to be placed near a door. What is the area of the reduced rug in square feet?
Monday, July 20, 2015 by Lenord

math
The scale model of a rectangular patio will be enlarged by a scale factor of 2.5 to create the actual patio. The actual patio will be 15 feet by 20 feet. Which is the area of the scale model? 48 square feet 60 square feet 120 square feet 300 square feet
Monday, July 20, 2015 by Luke

math
A piece of carpet is 8 feet wide and 12 feet long. The carpet needs to be reduced by a scale factor so that the reduced carpet is 2 feet wide. What is the area of the reduced carpet?
Monday, July 20, 2015 by nazir

math
A scale model of a rectangular building lot measures 7 feet by 5 feet. If the actual house will be built using a scale factor of 12, what is the area of the actual building lot?
Monday, July 20, 2015 by Jalen

math
A room is 12 feet long and 10.5 feet wide. A scale model of the room is 3.5 feet wide. What is the area of the scale model? 10.3 square feet 14 square feet 36 square feet 122.5 square feet
Monday, July 20, 2015 by Jordan

math
The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground? 18 square yards 54 square yards 108 square yards 324 square yards I got the answer of ...
Monday, July 20, 2015 by Keon

math
The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground? 18 square yards 54 square yards 108 square yards 324 square yards I got the answer of ...
Monday, July 20, 2015 by DeMarcus Smith

math
The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground? 18 square yards 54 square yards 108 square yards 324 square yards I got the answer of ...
Monday, July 20, 2015 by Keon

math
I'm trying to do number forms... can someone help me with the question what's the order form least to greatest -2,2.25,-2.75
Monday, July 20, 2015 by nazir

math
The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground? 18 square yards 54 square yards 108 square yards 324 square yards
Monday, July 20, 2015 by DeMarcus Smith

math
The scale model of a rectangular patio will be enlarged by a scale factor of 2.5 to create the actual patio. The actual patio will be 15 feet by 20 feet. Which is the area of the scale model? 48 square feet 60 square feet 120 square feet 300 square feet
Monday, July 20, 2015 by DeMarcus Smith

math
The scale model of a rectangular garden is 1.5 ft by 4 ft. The scale model is enlarged by a scale factor of 7 to create the actual garden. What is the area of the actual garden? 6 42 252 294
Monday, July 20, 2015 by DeMarcus Smith

math lictracy,life science,geography,tourism,isizulu,english,life orantation.
please tell me the job i can do while im study that subjects?
Monday, July 20, 2015 by thembekile zulu

Math
I am a five-digit number. My ten thousand digit is the highest odd number as well as my tens and ones. My thousands and hundreds digits mean nothing. What number i am?
Monday, July 20, 2015 by Maritess

Math
My thousand digit is an even number which is two more than my hundreds digit. My hundreds digit is three more than my tens digit which is three more than zero, my ones digit. My ten thousands digit is one more than my ones digit. What number am I? my ans 42473
Monday, July 20, 2015 by Maritess

Math
My tens digit is the lowest even number. My hundreds digit is six more than my tens digit and my ones digit is one more than my tens digit. My thousand digit is the second odd number. my ans: 2601
Monday, July 20, 2015 by Maritess

Math
My hundreds digit is the last odd number. Five less than my hundreds digit is my ones and my tens digit is two more than my ones digit. My thousands digit is three less than my hundreds digit. my ans: 6964
Monday, July 20, 2015 by Maritess

Math
My hundreds digit means nothing. Six more than my hundreds digit is my thousands and one less than my thousands is my ten thousands. My tens digit is four more than my hundreds and ones digit is five more than my tens digit. my ans: 5,6049
Monday, July 20, 2015 by Maritess

Math - linear programming
1)An electronic repair shop has 5 vacum cleaners, 12 tv sets, and 18 vcrs to be repaired. The store employs two part time repairmen. One repairman can repair at least one vacum cleaner, three tv sets and three vcrs in 1 week. While the second repairman can repair at least one ...
Monday, July 20, 2015 by Astro

math
A baseball pitcher can throw a base ball at 150 ft/s. Can this pitcher hit the 200-ft ceiling of its game dome, if he was capable of giving a baseball an upward velocity of 85 ft/s, from a height of 7 ft? (Assume the ball is traveling as a free-falling body, and g = 32 ft/s2...
Sunday, July 19, 2015 by Josh

MATH
48+(-2)3 but the 3 is an exponent
Sunday, July 19, 2015 by MED

math
If an equithagorean triangle is an equilateral triangle in which the sum of the cubes of two sides is equal to the square of the third side, what is the perimeter of an equithagorean triangle? A. 0.5 B. 1.5 C. 4.5 D. 6
Sunday, July 19, 2015 by Larry

math
A model rocket is launched off the top of a table. The height of the rocket is given by the function, h(t) = - 4.9t2 + 9.5t + 1.2 where h(t) is the height in metres and t is the time in seconds. How long will it take for the rocket to reach the ground?
Sunday, July 19, 2015 by algebra hard

Math (Finite)
In how many ways can a committee of 7 people be chosen from 15 married couples if 2 couples must be on the committee?
Sunday, July 19, 2015 by Stephanie

math
if tan=15/8 and cos negative then what is the value of [sin(-a)-cosa]/[tan(-a)+sec(-a)]
Sunday, July 19, 2015 by Anwar

math
Determine the trigonometric functions (sin θ, cos θ, tan θ ) of the angles (in standard positive) whose terminal side passes through the given point (x, y)=(1.2, 0.5). Give answers in exact form.
Sunday, July 19, 2015 by ashmita

Math
Farmer Brown planted corn and wheat on his 1200 acres of land. The cost of planting and harvesting corn is $275.00 per acre. The cost of planting and harvesting wheat is $125.00 per acre. If Farmer Brown's total cost was $244,500, how many acres of corn did he plant?
Sunday, July 19, 2015 by Janice

Math
In the average ball​ game, the sum of the scores of both teams is 4545​, with a standard deviation of 55. If the score of a game resulted in a​ z-score of 1.801.80 and the winning team had a score of 3333​, what was the other​ team's score?
Sunday, July 19, 2015 by Peewee

Math
A landscaper is drawing a scale model of a garden. The scale is that one half double prime 1 2 on the plan represents 1 foot in the garden. If a flower bed is 5 prime 9 double prime59 ​long, how long will it be on the​ plans?
Sunday, July 19, 2015 by Peewee

math
A lawn is 80 m long and 60 m wide. There is a swimming pool of length 20 m * 6 m in this lawn. what will be the cost of putting grass in the remaining part of field at Rs.30 per square metre?
Saturday, July 18, 2015 by uttama

math
math . please help me to answer this i really don't know what is the answer I need the answer later i have 2 more hours to finish this. please help me Find the value of x if the geometric mean of 2x and 19x-2 is 7x-2
Saturday, July 18, 2015 by april rose florida reyes

Math
A landscaper is drawing a scale model of a garden. The scale is that three eighths double prime 3 8 on the plan represents 1 foot in the garden. If a flower bed is 6 prime 3 double prime63 ​long, how long will it be on the​ plans?
Saturday, July 18, 2015 by Peewee

math
The coordinates of two of the vertices of a square are (0,0) and (0, -4). Of the following, which could not be the coordinates of the point where the diagonals of the square intersects? A. (2, -2) B. (-2, 2) C. (0, -2) D. (-2, -2)
Saturday, July 18, 2015 by Larry

math
What is the sum of the roots of (x-1)(x+2)(x-3) X ... X (x+98)(x-99)(x+100) = 0? A. -50 B. 50 C. -100 D. 100
Saturday, July 18, 2015 by Larry

math
It's 4PM. If my raft leaves for Hawaii in h hours, where h is the sum of all integers x which satisfy ≤ x^2 ≤ 81, then my raft leaves for Hawaii at A. 4 PM B. 2 PM C. noon D. 8 AM
Saturday, July 18, 2015 by Larry

Algebra
Tom took five math tests and got an integer score on each of them. He never scored higher than 90, and his lowest score was the fourth test. If his average score, rounded to the nearest integer, was 82, what is the lowest possible score he could have gotten on the fourth test?
Saturday, July 18, 2015 by Mr. Alexander

Math
20(B- 15) FOR B = 19
Saturday, July 18, 2015 by Dre

math
If j is the number of integers between 1 and 500 that are divisible by 9 and k is the number of integers between 1 and 500 that are divisible by 7 what is j+k.
Saturday, July 18, 2015 by Anonymous

Math
1/4y for y = 16
Saturday, July 18, 2015 by Ronald

Math
6x + 2 for x = 3
Saturday, July 18, 2015 by Jalen

math
6AA*8=50B4 If A and B represent distinct digits in this correctly worked multiplication problem what is the value of B.
Saturday, July 18, 2015 by Anonymous

Math
Write an equation and for each sine function described. Each cycle behind at the origin. a) amplitude=6, period=180 b) amplitude=2, period=540
Saturday, July 18, 2015 by Sarah

Math
A Ferris wheel has a radius of 35m and starts at 2m above the ground. It rotates once every 53 second. a) determine the cosine equation of the graph, if the rider gets on at the lowest point. b) what is the height of the rider at 81 seconds?
Saturday, July 18, 2015 by Sarah

Math 115 Statistics
In the game of craps, the player rolls two balanced dice, 36 equally likely outcomes, compute the probability the player looses on the first roll if the sum of the dice is 3, 4, or 6.
Saturday, July 18, 2015 by Tamiko

Math URGENT!!!
Jason bought 10 of the 30 raffle tickets for a drawing. What is the probability that Jason will win all 3 of the prizes if once a raffle ticket wins a prize it is thrown away?
Saturday, July 18, 2015 by Dude

Math
A ball is thrown, and its height is recorded a number of different times. The ball reaches a maximum height of 20 m after 1.5 s. How do you sketch this relation from just a vertex. Grade 11 functions
Saturday, July 18, 2015 by Bill

Math
A woman spent two third of her money. She lost two-third of the remainder and then had 200 pesos left. With how much money did he start?
Saturday, July 18, 2015 by Renz

MATH
Why hexagons are the most extensively found shapes in nature?what is the mathematical reason?What makes them so efficient? Why heptagon,octagon etc are not preffered over hexagon?
Saturday, July 18, 2015 by HELP !!!

math
According to Chebyshev's theorem, at least a percentage of either,56%,75%,85%,89% of the measurements lie between 119.3 mmHg and 146.9 mmHg. I really hate to ask any question of you guys I know you are busy, but I am totally lost with this statistic stuff. a little note I...
Saturday, July 18, 2015 by Mary Ann

math
Given f(x) > 0 with f ′(x) > 0, and f ′′(x) > 0 for all x in the interval [0, 3] with f(0) = 0.1 and f(3) = 1, the left, right, trapezoidal, and midpoint rule approximations were used to estimate the integral from 0 to 3 of f of x, dx
Friday, July 17, 2015 by Anonymous

Math
A carpenter is assigned the job of expanding a rectangular deck where the width is one-fourth the length. The length of the deck is to be expanded by 10 feet, and the width by 6 feet. If the area of the new rectangular deck is 128 ft^2 larger than the area of the original deck...
Friday, July 17, 2015 by Ally

Math
1÷5 (45y+20)+3÷4 (12y=24)=19 Find solution set (9y=14)+(9y=18)=19 18y = 33÷8
Friday, July 17, 2015 by Sue

math
Simon and Jimmy had 167 stamps altogether. Simon gave 4/7 of his stamps to Trina, and Jimmy gave 37 stamps to Trina. Simon and Jimmy had the same number of stamps left. How many stamps did Jimmy have in the beginning? I need you to show me how you did it because I have trouble...
Friday, July 17, 2015 by Anonymous

math
The scale drawing of a rectangular room will be enlarged by a scale factor of 4 to create the actual room. The actual area of the room will be 150 square feet. What expression finds the area of the scale drawing?
Friday, July 17, 2015 by DeMarcus Smith

math
A piece of carpet is 8 feet wide and 12 feet long. The carpet needs to be reduced by a scale factor so that the reduced carpet is 2 feet wide. What is the area of the reduced carpet? 6 square feet 12 square feet 24 square feet 48 square feet
Friday, July 17, 2015 by DeMarcus Smith

math
A scale model of a rectangular building lot measures 7 feet by 5 feet. If the actual house will be built using a scale factor of 12, what is the area of the actual building lot? 35 square feet 420 square feet 840 square feet 5,040 square feet
Friday, July 17, 2015 by DeMarcus Smith

math
The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground?
Friday, July 17, 2015 by DeMarcus Smith

math
A model of a rectangular patio at a landscaping business will be enlarged by a scale factor of 2 when it is installed in a customer’s back yard. The area of the new enlarged patio will be 160 square feet. What is the area of the landscaper’s model?
Friday, July 17, 2015 by DeMarcus Smith

math
The dimensions of a rectangle dining room are 18 feet by 16 feet.If a scale factor of 1/4 is used to make a scale model of the dining room,what is the area of the dining room in the scale model? A.18 square feet B.36 square feet C.48 square feet D.72 square feet
Friday, July 17, 2015 by DeMarcus Smith

math
Point C and point D are plotted on the graph. Plot points A and B to form rectangle ABDC with an area of 36 square units. Plot point E at (2, 4).
Friday, July 17, 2015 by Jack

math
How we can write 17 - 07-2015 in 5 letters
Friday, July 17, 2015 by pinki

math
How much is the 25 of $42,500
Friday, July 17, 2015 by Debbie

Math
You currently lease scanning equipment at a cost of $1,500 per quarter and two copy machines at $120 each per month. a. What will you need to budget annually for this leased equipment?
Friday, July 17, 2015 by Debbie

Math
Can some please explain what I have to do to get the answer? An airplane passes directly over Seneca High School. A student at Cherokee High School, which is 4.3 miles away, finds the angle of elevation of the plane to be 19°. Find the altitude of the plane.
Thursday, July 16, 2015 by Claire

Math
2x – 3y – 6 = 0 How do you change the equation to slope –intercept form?
Thursday, July 16, 2015 by Kelly Brians

Math
In Canada, the number of girls playing organized ice hockey from January 1990 to January 2010 increased by approximately 4162 girls per year. In January 2000, there were approximately 45 400 girls playing organized ice hockey. a. Write an equation in slope-point form to ...
Thursday, July 16, 2015 by Kelly Brians

Math
Find the equation of the line in general form. (1, 9) & (3, 19)
Thursday, July 16, 2015 by Kelly Brians

Math
How do you write this equation into slope intercept form 15 𝑥 − 12 𝑦 − 1 = 0
Thursday, July 16, 2015 by Kelly Brians

Math
If 5X + x squared > 100 then x is not equal to
Thursday, July 16, 2015 by Melissa

Math
During decimal multiplication, we know that the placement of the decimal point in the product is decided by the sum of number of digits after the decimal point in both the factors being multiplied. I know that's what we do but i don't understand why this rule works?...
Thursday, July 16, 2015 by HELP !!!

math
If a scale of 1-10 was in front of you based on maturity; where would you land?(Minimum 2 Sentences)
Thursday, July 16, 2015 by ...

math
In a science experiment, the temperature of a glass of water rose 18.24 degrees after six hours. If the temperature rose the same number of degrees per hour, then how many degrees did the water increase per hour?
Thursday, July 16, 2015 by veronica

math
49 students went on a trip .There are 5 more girls than boys.How many boys are there?
Thursday, July 16, 2015 by elizabeth

math
In a school with 323 students there are 15 more girls than boys.How many boys are there?
Thursday, July 16, 2015 by elizabeth

math
49 students go on a trip there are 5 more girls than boys.how many boys are there?
Thursday, July 16, 2015 by elizabeth

math
I have two kinds of candy,one which is selling at P8.00 per kilo and other at P6.00 per kilo. How many kilos of the P6.00 candy can i mix with 20 kilos of the P8.00 kilo candy to have a mixture that i can sell at P7.00 per kilo?
Thursday, July 16, 2015 by ana

Lemoyne Owen College
Math- If the gas is initially at room temperature (20celsius)and is heated in an isobaric (constant pressure) processing then what will be the temperature of gas in degree Celsius when it has expanded to a volume of 0.700 m to the third power
Wednesday, July 15, 2015 by Kimberly

Math
The graph of a linear relation goes through the point (6, 4) and is parallel to the line y = 5x + 10. Write the equation of the linear relation in slope- intercept form.
Wednesday, July 15, 2015 by Kelly Brians

math
express the repeating decimal 10.232323 as a ratio of two integers
Wednesday, July 15, 2015 by jen

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