Sunday
June 26, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

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

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 Timothy

math
TWO EGGS ARE SIMILAR IN SHAPE WITH MASS 50 G AND 70G THE HEIGHT OF BIGGER EGG IS 8 CM FIND THE HEIGHT OF SMALLER EGG SCALE FACTOR K=0.238
Monday, May 2, 2016 by rajeswari

Math
Mrs.thomas bought a new blanket shaped like an equilateral triangle that measures 3 feet on each edge.how long should the ribbon be?
Sunday, May 1, 2016 by Anonymous

Math
Given u = 1/SQRT(10) (-2,1,-1,2). Find a unit vector v satisfying the condition that u . v = -1.
Sunday, May 1, 2016 by Joc

math
Draw a number line to show 3/4 and 6/8 are equivalent.
Sunday, May 1, 2016 by Hallen

math
Give me steps to find log of32 in log table
Sunday, May 1, 2016 by lucifer

Math
A florist used 12 flowers to make a bouquet, including 4 daisies. What is the probability that a randomly selected flower will be a daisy?
Sunday, May 1, 2016 by Jack

Math
Compound Interest A Interest paid on the principal and the interest of a deposit or loan. B Percentage of discount on a purchase C The amount on income taxes paid by a business D Interest paid only on the principal of a deposit or loan Is it d?
Sunday, May 1, 2016 by gabby

Math
Which triangle is not possible to construct? A a right isosceles triangle B an acute equilateral triangle C an obtuse scalene triangle D a right equilateral triangle This is the second time ive posted but the last thread got confusing
Sunday, May 1, 2016 by help appreciated

Math
1 dandelion = 4 wildflowers 3 ferns = 8 wildflowers How many dandelions equal 12 ferns?
Sunday, May 1, 2016 by Sai

Math
1 Constant of Proportionality A a number that has more than two factos B The distance between the numbers on a scale of a graph C polygon that has four sides D equation to represent a proportional relationship Im pretty sure its D right?
Sunday, May 1, 2016 by gabby

MATH
Which triangle is not possible to construct? A a right isosceles triangle B an acute equilateral triangle C an obtuse scalene triangle D a right equilateral triangle Would it be A
Sunday, May 1, 2016 by help appreciated

math
how much sugar am i using if i use 3 tablespoons and want it in teaspoons? 1/2 teaspoons = 0.16 tablespoons
Sunday, May 1, 2016 by Anonymous

Math
24. A radio signal travels at 3.00 x 10^8 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 3.54 x 10^7 meters?
Sunday, May 1, 2016 by Leet Speaker

Math
A circle’s area is represented by A = π(x2 − 22x + 121). What expression represents the radius of the circle? A. x + 11 B. x − 11 C. x − 22 D. x + 22 I got d please correct if wrong thx.
Sunday, May 1, 2016 by Norman Hirani

math
It the track is 1/4 mile around and you do 3 laps in 4 and 1/2 min, how many mile per hour do you run?
Sunday, May 1, 2016 by sheryl

Math
Potatoes are sold in 2.25 pound bag. how many whole bag must tanisha buy in order to have enough potatoes?
Sunday, May 1, 2016 by Anonymous

Math
Is this answer correct? 55% of x = 2 The answer I got was 40/11.
Sunday, May 1, 2016 by Nina

MATH
The median number of goals scored by 8 players in a certain soccer season is 5. The range of the number of goals scored by those players that season is 4. Determine if the following statement is true, is false, or does not contain enough information. At least one player scored...
Sunday, May 1, 2016 by rish

Math
Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 6, Q1 at 7.5, median at 8, Q3 at 23, max at 32.5 The mean, because the data distribution is symmetrical The median, because the data distribution is symmetrical The...
Sunday, May 1, 2016 by help

Math
The function b(h) models the percent of a certain wildflower that blooms during months in which the average daily sunlight is h hours. Name the most appropriate domain for this function. A. Integers, h ≤ 24 B. Integers, 0 ≤ h ≤ 24 C. Real numbers, 0 ≤ h...
Sunday, May 1, 2016 by Sanjay Gupta

math
A draws a card from a pack of n cards marked 1,2,3,...,n. The card is replaced in the pack and B draws a card. Find the probability that A draws I)the same card as B. Ii)higher card than B.
Sunday, May 1, 2016 by please help urgently

Math
45% liked literature, 70% liked music and 15% liked none.if 60 students liked both subjects. Find the number of students participated in this survey.
Sunday, May 1, 2016 by Bhabook

math
in a series of 5 one day cricket matches between A and B, the probability of B winning or making draw are 1/3 & 1/6 respectively. If a win, loss or draw gives 2,0 or 1 points respectively, find the probability that B will score 5 points in the series.
Sunday, May 1, 2016 by please do help urgently

Math
angle theta is in standard position on a co-ordinate grid. the terminal arm of theta is in quadrent 2 on the line thats equation is 3x-4y=0. Determine the sine of this angle and then the measure of angle theta.
Sunday, May 1, 2016 by Rachel

math
a student takes up a True or false exam of 10 questions. he is completely unprepared and so he starts guessing randomly. he may toss a coin and use the outcome to determine the guess. compute the probability that he guesses correctly atleast five times.
Sunday, May 1, 2016 by Urgent help needed please

math trick question
Trick question? Suppose m<A=77 degrees. What is the measure of a complement of a complement <A? Explain. a complement of angle 77 is 13 degrees. but a complement of a complement wouldn't that be 77?? Help!!
Sunday, May 1, 2016 by Anice

math
Given one side of a golden rectangle is 3.7 inches, find the possible lengths of the other side. Notice that the other side can be either longer or shorter than 3.7 inches. Round your answers to the nearest tenth and use Greek Phi symbol=1.618.
Sunday, May 1, 2016 by Bobby Jackson

math-middle school
Kendra says that she can draw ,A and <B so that m<A is 119 degrees and <A and <B are complementary angles. Do you agree or disagree. explain. I would disagree since complementary angles equal 90 degrees.
Sunday, May 1, 2016 by Anice

math
Is it possible to have a semiregular tessellation using 2 pentagons and 4 decagons?
Sunday, May 1, 2016 by Pamela Beaty

7 th grade math
You check 20 batteries.Fourteen do not have a charge. Part a. What is the experimental probability that the next battery you check does not have a charge? Part B. Select an answer from each box to make the statement true If 300,100,240 batteries are tested I would expect 30,...
Sunday, May 1, 2016 by Phyl

MATH- HELP PLEASE. IM LOST
Given one side of a golden rectangle is 3.7 inches, find the possible lengths of the other side. Notice that the other side can be either longer or shorter than 3.7 inches. Round your answers to the nearest tenth and useGreek Phi normal.svg=1.618.
Sunday, May 1, 2016 by Bobby Jackson

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