Saturday
July 23, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math
How many “words” can be formed using the letters of the word ARRANGEMENT?
Tuesday, May 3, 2016 by Anonymous

Chemistry-ish
What is the pH of a solution that has a OH- concentration equal to 1x10-5M? 14-x 14-5=9 can I use that simple of math 9?
Tuesday, May 3, 2016 by Jeremiah

math
Stock worth $60 a share dropped in value by 20% on Monday, then, again by $10 the next Tuesday and, finally, increased by 55% the following Friday. What was the final price of a share?
Tuesday, May 3, 2016 by Anonymous

math
The number a exceeds the number b by 50 percent. By what percent is the number b smaller than the number a?
Tuesday, May 3, 2016 by Anonymous

math
During last year the number of students in RSM increased by 100%. This year, the number of students increased by 150%. What percent of the number of students now was the number of students two years ago?
Tuesday, May 3, 2016 by Anonymous

math
Due to inflation there were two demand increases. After the second increase the price for a certain item became twice as big as the original. By what percent was the first increase, if the second increase was 25%? can you solve this fast
Tuesday, May 3, 2016 by Anonymous

urgent math
1. Simplify the expression 7^9/7^3 a.7^3*** b.7^6 c.7^12 d.1^6 2. Simplify the expression z^8/z^12 a.z^20 b.z^4 c.1/z^-4 d.1/z^4 3. Simplify the expression (-3^4)/(-3^4 a.(-3)^1 b.0 c.1 d.(-3)^8 4.Which expressions can be rewritten as 1 over the base raised to a positive ...
Tuesday, May 3, 2016 by Connexus

Math
Lucia is hoping that Angela will buy her a geometrically interesting piece of land on which he will build a mansion. Lucia has said that she will only buy the land if it costs less than $4.00 per square foot. The plot shown below is listed for $453,175. Is Angela going to be ...
Tuesday, May 3, 2016 by Tim

math
How do you differentiate between mutually exclusive and independent events? Please explain with examples. And why cant they happen together?
Tuesday, May 3, 2016 by urgent help please

Math
Which ordered pair is a solution of the equation y = 3x? A. (–2, –9) B. (–8, –18) C. (–8, –3) D. (–10, –30)
Tuesday, May 3, 2016 by Martin1162

Math
A square field has an area of 479 ft2. What is the approximate length of a side of the field? Give your answer to the nearest foot. A. 240 B. 23 C. 22 D. 21
Tuesday, May 3, 2016 by Martin1162

Math
There is an expression some people use that says, “What you put into it is what you get out of it.” People might use this expression to describe your skills at a sport or activity and how that relates to the amount of time and effort you spend practicing that ...
Tuesday, May 3, 2016 by Origami_Intermediate

Math
(14 - 2)2 ÷ 2 A. 30 B. 360 C. 72 D. 60
Tuesday, May 3, 2016 by Martin1162

math
Cynthia has a bag of jellybeans. There are two red jellybeans, one yellow jellybean, and two black jellybeans in her bag. Cynthia grabs two jellybeans and gives them to her friend, Pedro, and he eats them. What is the probability that she gives him two red jellybeans?
Tuesday, May 3, 2016 by joshua

Math
Simplify the expression 6ab + 3ab - 7ab. What is the coefficient of the simplified expression? A. a B. ab C. 2 D. b B
Tuesday, May 3, 2016 by Martin1162

Math
What is the simplified form of the expression? (2 – 9c)(–8) A. –16 + 72c B. 16 + 72c C. –16 – 72c D. 16 – 72c HELP PLZ!!
Tuesday, May 3, 2016 by Martin1162

Special education setting
When tutoring learning challenge students in academic subject, you should A.make sure reading materialsome are slightly above their abilities so they will be challenged. B.spend long period of time on math drills. C.disregard development level D.help the student use task ...
Tuesday, May 3, 2016 by Zenia Brent

MATH
Two cell phone companies have different rate plans. Runfast has monthly charges $25 plus $10 per gig of data. B A &D’s monthly charge is $18 plus 15 per gig of data. Your task is to determine under what circumstances each company has the better pricing. Okay I am trying ...
Tuesday, May 3, 2016 by Tamara

Math
You read 50 pages in an hour. Your sister reads 40 pages in an hour. Explain how to find out how many more pages you read than your sister reads in 1212 hour?
Tuesday, May 3, 2016 by Iris

Math
3. Which number line shows the approximate location of √56? (On number lines) 8 7.5 7 6.5
Tuesday, May 3, 2016 by A boy who just needs some homework help

Math
Kendal spent 1/3 of her money on an mp3 player. The next week, she earned 25 dollars from baby sitting and deposited it in her bank account. Her bank account is now at 115 dollars. How much did she start out with?
Tuesday, May 3, 2016 by Abbie

Math
What would be the best chart or graph to display the number of pages 15 books have? Help!
Tuesday, May 3, 2016 by Help

Math Please Help
The graph above shows the number of students receiving A's in each grade at Bridgeport Middle School. Which statement is true? A: The scale on the first graph does not distort the lengths of the bars. B: The second graph shows greater changes in the number of A's than ...
Tuesday, May 3, 2016 by #Blessed

math 1324
a natural history museum borrowed $2,000,000 at simple annual interest to purchase new exhibits. Some of the money was borowed at 7%, some at 8.5%, and some at 9.5%. Use a system of linear equations to determine how much was borrowed at each rate if the total annual interest ...
Tuesday, May 3, 2016 by Anonymous

math
Jack's credit card statement showed these items: Last Balance Payments Finance Rate New Charges $95.85 $45.00 1.5% $345.90 What is Jack's new balance?
Tuesday, May 3, 2016 by Dustin

math
If 2 circle are enclosed in a rectangle, then find the ratio of the total area of the rectangle to the total shaded area.
Tuesday, May 3, 2016 by Arick

Math
How do I solve for t with more than one t? -4.9t^2 - 28t
Tuesday, May 3, 2016 by Anonymous

Math 20-2 Proportional Reasoning Need Help Plz!
a. Calculate the total cost of moving from your current location to your new location for each of the options.? Option A: Renting a moving truck and towing vehicle. 16 ft cube truck, iHaul fee $1.13/km, Fuel consumption rating 23.5 L/100 km, the customer pays for fuel. Option ...
Tuesday, May 3, 2016 by Tala

math
if a minor league plays 123 games in a season won 15 more games than three times as many as they loss how many games did they win and lose
Tuesday, May 3, 2016 by Xavieria

math
what percent of 200 liters is 3 liters
Tuesday, May 3, 2016 by Xavieria

Math
f(x) = tan x / sin x Find the vertical asymptote. Describe its behavior to the left and right of the vertical asymptote.
Tuesday, May 3, 2016 by David

math
tanya fills the prism 110 1/2 in3 of liquid what is the height of the liquid pls help me
Tuesday, May 3, 2016 by rya

Math
how can you use the distances between each data value and the mean of the data set to measure the spread of a data set?
Tuesday, May 3, 2016 by Mariannr

math
find the area of the cone cut from its vertices to make half of it with radius 14 cm and slant height 20 cm see the figure below
Tuesday, May 3, 2016 by kelvin

data analysis- math
Question 1 Production Rates A manufacturing company wishes to find out whether the productivity of its workforce has increased now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past month. The hourly production rates for...
Tuesday, May 3, 2016 by Tia

Math
What is the unit rate of drink 4/5 L in 1/4 hour
Monday, May 2, 2016 by Ellen

Math
Maury plans to cover his floor with 1 square foot tiles. The dimensions are 8ft by 9 ft. How many times will Maury need?
Monday, May 2, 2016 by Jenny

Math
If d represents the measure of an acute angle,write an inequality to show the range of degrees. AT first I thought it was: d is less than 90 degrees, which is less than 180 degrees, but it was obviously wrong as explained by my teacher, thank you
Monday, May 2, 2016 by Hannah Moraf

math
How can i factorize this? 8x^3+1
Monday, May 2, 2016 by Maya

math
A high-speed elevator can rise 480 feet in 30 seconds. Which expression represents the rate, in feet per minute, of the elevator how do i get the answer
Monday, May 2, 2016 by may

math
A high-speed elevator can rise 480 feet in 30 seconds. Which expression represents the rate, in feet per minute, of the elevator?
Monday, May 2, 2016 by may

math
Find dy/dx and d2y/dx2. x = e^t, y = te^t
Monday, May 2, 2016 by Michael

Math
Andrea needs 3/8 ounce of vanilla for her cookie recipe. If 1 milliliter is approximately 0.03 ounce, write an expression to determine the number of millimeters of vanilla Andrea needs for her cookie recipe.
Monday, May 2, 2016 by Chrissy

Math
What is the correct unit for volume?
Monday, May 2, 2016 by Jade

7th Grade Math
Fernando is 6 1/4 feet tall. If one inch equals 2.54 centimeters, what is Fernando's height in centimeters? My answer is 15.49 centimeters. Is my answer correct? If not please show me how to work it out.
Monday, May 2, 2016 by Tim

Math
Name the coordinates of the points
Monday, May 2, 2016 by Damien

Math
One angle of a triangle is 45* greater than the smallest angle, and the third angle is 5* less than twice the smallest angle. Find the measures of the three angles.
Monday, May 2, 2016 by Renae

7th Math
If Jeremy drinks 1 1/2 quarts of coffee every 3 days, how many liters of coffee would Jeremy drink in 3 weeks? 1 quart = 0.946 liter The answer I have is 19.866 liters. 0.946*21= 19.866.
Monday, May 2, 2016 by Tim

Math
Determine whether the two figures are similar. If so, give the scale factor of the smaller figure to the larger figure. Smaller figure: Length: 11 Width: 7 Height: 7 Larger figure: Length: 33 Width: 28 Height: 14 yes; 1:2 yes; 1:7 yes; 1:3 no I see a pattern among the two ...
Monday, May 2, 2016 by SkatingDJ

math
My teacher assigned us this problem: Using the following logarithms Log2,log3 and log10 solve for the log150,log 75 incorporating the properties of logarithms ,i tried ,but failed plz help!!
Monday, May 2, 2016 by Marie

Math
Find the rotation in revolutions per minute given the angular speed and the radius given the linear speed and the rate of rotation. 1. w= 2.7 rad/s 2. v=24.8 m/s, 120 rev/min 3. w= 4/3Pi rad/hr Please help me with these problems! I am a visual learner and I learn best when ...
Monday, May 2, 2016 by Sarah

Math
Marissa bought 2 1/4 gallons of orange juice to make punch. How many qts of oj did she buy? Marissa bought 6 fewer pints of soda than oj. How many cups of soda did she buy?
Monday, May 2, 2016 by Natalie

math
ronald reads 1,000 words in 5 minutes how do i write as a unit rate? i get 200 is that right?
Monday, May 2, 2016 by may

7th Grade Math
Sam serves a tennis ball at a speed of 90 miles per hour. If 0.62 mile is equivalent to 1 kilometer, what is Sam's serve speed in kilometers per hour? Round your answer to the nearest hundredth.
Monday, May 2, 2016 by Mikey

math
a pancake recipe calls for .75 cups of flour. Linda is making 5 batches. she already has 2.5 cups of flour how many more cups does she need?
Monday, May 2, 2016 by may

Math
When looking at the problem given in the Video Example 84 –Factoring Out the Opposite of the GCF, located in the media section of Chapter 5, what GCF is first factored out of all terms in the expression
Monday, May 2, 2016 by Donald

Math
Meredith's new scale measures in both pounds and kilograms. The information on the box says the scale has a weight limit of 200 kilograms or 440 pounds. Using this information, approximate the unit rates of kilograms per pound and pounds per kilogram, to the nearest ...
Monday, May 2, 2016 by Sarah

math
a pancake reciipe calls for .75 cups of flour. Linda is making 5 batches. she already has 2.5 cups of flour how many more cups does she need?
Monday, May 2, 2016 by may

math
ronald reads 1,000 words in 5 minutes how do i write as a unit rate?
Monday, May 2, 2016 by may

Math
Use inductive reasoning to describe the pattern. Then find the next two numbers in the pattern. 3,3.04,3.08,3.12,....
Monday, May 2, 2016 by Sid.V

MATH PROBABILITY
From a group of 4 women and 8 ​men, a delegation of 3 is selected. Find the expected number of women in the delegation. Can someone please help me find this answer?
Monday, May 2, 2016 by HANDSON

Math
Can someone give me examples on how to put combinations and permutation in two different situation?
Monday, May 2, 2016 by M&M's

math
keri bought a pen she paid with a 1$ bill this is the change she got how much did the pen cost
Monday, May 2, 2016 by maya

Math
what is the least perimeter of a rectangle with an area of 32 square feet
Monday, May 2, 2016 by ???

MAth
While exploring for oil, it was necessary to carry at least 18tones of supplies and 80 people into a desert region. Two types of vehicles are available :landmaster and sandrovers. Each landmaster could carry 900kg of supplies and 6 people. Each sandrover could carry 1350kg of ...
Monday, May 2, 2016 by aerhm

Math
what is the greatest perimeter of a rectangle with an area of 39 square feet
Monday, May 2, 2016 by Mimi

MATH
what data are represented by the stem-and-leaf plot below. 3/7 8 9 4/1 3 7 5/2 4 Key:4/ 1 Means 41
Monday, May 2, 2016 by kaitland

Math
Val Measures the diameter of a ball as 12 inches. How many cubic inches of air does this ball hold, to the nearest tenth? Use 3.14 for Pi
Monday, May 2, 2016 by Anonymous

Math
A math quiz is made up of 5 multiple choice questions, each with 4 possible answers. How many possible sets of answers are there?
Monday, May 2, 2016 by Emmie

Math
What prime factorization is equivalent to 8 to power of 2 minus 8 divided by 4?
Monday, May 2, 2016 by Skylar

Math
-10(-11) Would this be -110 ? I know a negative times a negative should be a positive but does this change when the second number is inside the ( )
Monday, May 2, 2016 by Lex

Math
Steam|leaf 5 4,5 6. 0,6,9 7. 2,3,4,5,5 8. 1,2,8,9 9. 5,6 1 what is the range of data 40 42 54 96 2 what is the median of the data 64.5 72.5 74.5 75 3 what is the mode of the data 5 70 75 88 Stem|Leaf 4. 3,5 5. 0,5,6 6. 2,2,4 7. 1,3 8. 0,4 4. many students ran 6 or more miles 7...
Monday, May 2, 2016 by Vigilante

math
Sam Seller offers credit at 19% interest per year. To the nearest tenth, APR = ?
Monday, May 2, 2016 by josh

math
If 8kg of coffee costing $2000 a kg is mixed with 12kg of another kind of coffee costing $2200. What is the cost of the mixture per kg
Monday, May 2, 2016 by aerhm

math
While exploring for oil, it was necessary to carry at least 18tones of supplies and 80 people into a desert region. Two types of vehicles are available :landmaster and sandrovers. Each landmaster could carry 900kg of supplies and 6 people. Each sandrover could carry 1350kg of ...
Monday, May 2, 2016 by Anonymous

math
Eight players P1,P2,...,P8 play 3 sets of a tournament. It is known that whenever players Pi and Pj play, the player Pi wins if i<j. Assuming that the players are paired at random in each round, what is the probability that player P4 reaches the final?
Monday, May 2, 2016 by urgently help needed please please

math
x -2 -1 0 1 2 y 9 4 -1 -6 -11 find function rule
Monday, May 2, 2016 by ginger

Math
Find the Circumference. a) Give an exact answer in terms of pi. 42pi C=pi*d=pi.pi*42=42pi. Use pi~22/7,and express your answers as a fraction in lowest terms.
Monday, May 2, 2016 by Miracle

math
The decimal parts of the logarithms of two numbers taken at random are found to 6 decimal places. What is the probability that the second number can be subtracted from the first number without "borrowing" ?
Monday, May 2, 2016 by urgently help needed please

math
Lucia is hoping that Angela will buy her a geometrically interesting piece of land on which he will build a mansion. Lucia has said that she will only buy the land if it costs less than $4.00 per square foot. The plot shown below is listed for $453,175. Is Angela going to be ...
Monday, May 2, 2016 by Tim

math
Translate this sentence into an equation. The difference of Rick's age and 9 is 69 Use the variable r to represent Rick's age.
Monday, May 2, 2016 by Anonymous

math
What is y=3x-3?
Monday, May 2, 2016 by doglover

math
find the volume of the triangular prism where the area of Cross section is 20cm and the length 10cm.
Monday, May 2, 2016 by Augusta

Math
Lucia is hoping that Angela will buy her a geometrically interesting piece of land on which he will build a mansion. Lucia has said that she will only buy the land if it costs less than $4.00 per square foot. The plot shown below is listed for $453,175. Is Angela going to be ...
Monday, May 2, 2016 by Tim

math
The area of a rhombus is 139.2cm.cm.and its altitude is 9.6cm.find the perimeter of the rhombus?
Monday, May 2, 2016 by subham

Math Help
the weather forecaster says the planet temperature is 3F. He expects the temperature to fall 5 degrees during the night. How cold will it get? A) 2 F B) -2 F C) 8 F
Monday, May 2, 2016 by Donut🍩

math
Use the function rule f(x)=x^2-5x+1. Find the output of f(-5). What I did was I replaced -5 in for x...That's as far as I could go. I got confused. Thank you ~Maddie
Monday, May 2, 2016 by Maddie♥

math
Roger buys six 1.5- litre bottles of fresh juice. he distributes 20 cl of juice to each of his pupils. calculate the number of pupils in his class if 600 ml is left.
Monday, May 2, 2016 by neha

Math
A binary operation * on the set of real numbers is defined by a*b= a+b-ab for a,b, c is belongs to R. i) show that the operation is associative. That is, (a*b)*c=a*(b*c) for all a,b,c belongs to R. ii) Find the value of -5*8 and also the value of (4*6)*5/13.
Monday, May 2, 2016 by Ilukui

English
1. Can you help me with this? 1-2. Can you help me do this? (Are both the same?) 2. Can you help me with cleaning the room? 3. Can you help me about cleaning the room? 3-1. can you help me clean the room? 3-3. Can you help me on cleaning the room? (Are they the same? Can we ...
Monday, May 2, 2016 by rfvv

Math
When a telephone exchange is established, there are 10,000 new phone numbersto use(i.e. 722-0000 to 722-9999). Of these 10,000 phone numbers, how many do not contain the digit "9"? I know I can do it this long way, but how do I do it in a shorter more reliable way. ...
Monday, May 2, 2016 by Steve

Math
If two balls are selected randomly without replacement four a bag containing 4 red and 8 green balls. List the element of the sample space corresponding probabilities.
Monday, May 2, 2016 by Blessing

Math
Juan employs something called a mirror method. He places a mirror exactly 12 meters from the bottom of a maple tree and then walks backwards until he sees an image of the top of the tree . From the tree which is angle 1 and from him is angle 2 these angles are congruent. He is...
Monday, May 2, 2016 by linda

MATH
The Eiffel Tower has a surface area of approximately 76,000 square meters. A restoration company charges $80 per sq yard for re-painting. How muuch will it cost to paint the Eiffel Tower
Monday, May 2, 2016 by KAREN

Math
A marathon covers 26 miles and 385 yards. If a runner averages 1.8 meters per second, how long in hrs will it take to complete the marathon?
Monday, May 2, 2016 by Rosie

Math
At your present job, your annual salary is $76 025 Cdn. The salary for your new job is $75 000 US.? Does your new job provide an increase or decrease in salary? Explain your reasoning.
Monday, May 2, 2016 by Tala

math
A board of 4 members is going to be formed from the 30 students of a class. The board is formed of: a president a vice president a secretary and a treasurer. What is the number of possible boards knowing that each of the 30 students can occupy any post?
Monday, May 2, 2016 by angy

Math
a. Calculate the total cost of moving from your current location to your new location for each of the options.? Option A: Renting a moving truck and towing vehicle. 16 ft cube truck, iHaul fee $1.13/km, Fuel consumption rating 23.5 L/100 km, the customer pays for fuel. Option ...
Monday, May 2, 2016 by Tala

Math
The world's tallest building is the Burj Khalifa in Dubai at 828 m tall. The CN Tower in Toronto is 553 m tall. Ryan wants to compare the Burj Khalifa and the CN Tower by creating rectangular prism models on a 10 cm by 10 cm square base. He decided to represent the Burj ...
Monday, May 2, 2016 by Tala

Math
Financial Mathematics why is it that a question states that a person buys a car for R122 000 and pays 10% of the cost but then the answer to it they have multiplied the amount by 0.09 which is 9%?
Monday, May 2, 2016 by Anonymous

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