Sunday

June 26, 2016
**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*