Tuesday
August 4, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
What is 21.21% rounded to two decimal places?
Wednesday, April 15, 2015 by Francis

Math
Take a four digit number (abcd) and repeat it to make an eight digit number (abcdabcd). This eight-digit number always has at least three different prime factors, unless you start with a certain four-digit number. Which number is it?
Wednesday, April 15, 2015 by Maddie

Math (ASAP)
Write out the first 4 terms of the following sequence that is define recursively. a1=32 ak+1=1/2ak
Wednesday, April 15, 2015 by Gigi

Math
Prove that 140 * 141 * 142 * ... * 159 * 160 is divisible by 4321.
Wednesday, April 15, 2015 by Peter

math word problems
Q. Mark's doctor appointment was 35 minutes after Tyson 's appointment, Tyson appointment was 20 minutes after Timothy's appointment. Timothy arrived 8 minutes before his appointment but 17 minutes after Raul's appointment which started at 9:30 am. At what time...
Wednesday, April 15, 2015 by anonymous

Math
1.Jake has 10 t-shirts and 5 collared shirts. What is his ratio of t-shirts to collared shirts? this answer is 5/ 10 what i can't figure out is the second part of this 2. If Jake buys 3 new shirts, how many of them would you expect to be to be t-shirts, and how many would ...
Wednesday, April 15, 2015 by Angelina

math
Kenji, a pet store employee, wants to fit two fish tanks on one table. One fish tank is 4 feet wide and the other fish tank is 2/5 of a foot wide. When placed next to each other, what is the total width of the two fish tanks? Simplify your answer and write it as a proper ...
Wednesday, April 15, 2015 by Ehram

math
Mark's doctors appointment was 35 minutes after Tyson 's appointment. Tysons appointment was 20 minutes after Timothy's appointment. Timothy arrived 8 minutes before his appointment. But 17 minutes after Raul's appointment. Which started at 9:30 am. At what ...
Wednesday, April 15, 2015 by amethyst

Math
Kenji, a pet store employee, wants to fit two fish tanks on one table. One fish tank is 4 feet wide and the other fish tank is 2/5 of a foot wide. When placed next to each other, what is the total width of the two fish tanks? Simplify your answer and write it as a proper ...
Wednesday, April 15, 2015 by Ehran

math plz help
A bag contains 5 green marbles,8 red marbles,11 orange marbles, 7 brown marbles, and 12 blue marbles. You choose a marble, replace it, and choose again. What is P(red, then blue)? A.20/43 B.40/43 C.20/1849 D.96/1849 Is the answer A?? Thank you in advance
Wednesday, April 15, 2015 by Pink

math
A large game die is a cube measuring 1.2” in length. The die is a solid made from liquid plastic. If a game comes with 6 such dice, how many cubic inches of liquid plastic were needed to make the 6 dice?
Wednesday, April 15, 2015 by lilly

math
Larry and Willa are each reading the same book.Larry has read 2/3 of the book.Willa read 4/6 of the book,so she read more.Is Willa correct?Explain
Wednesday, April 15, 2015 by Laura

math
area 432 square ft. width is 3/4 of length, what is length
Wednesday, April 15, 2015 by pj

Math
Ellen, Fern, and Kyle are all drinking milk from the same size cartons in the cafeteria. Ellen's carton is 3/7 full. Ferns carton is 3/10 full. Kevin's carton is 3/4 full. Who has the least milk left in their carton? Explain how you know?
Wednesday, April 15, 2015 by Amari

Math
The variable y varies inversely as x : y is 1 2/3 when x is -3/5. Find y when x is 3/7
Wednesday, April 15, 2015 by M

Math
The time it takes to clean the house varies inversely with the number of people cleaning. If it takes 1 person 4 hours to clean the house, how long will it take 3 people? 12 hours
Wednesday, April 15, 2015 by M

Math
The volume of a gas varies inversely as applied pressure if the pressure acting on a 45m^3 of gas is lowered from 3 atmospheres to 2 atmospheres what new volume does the gas occupy
Wednesday, April 15, 2015 by M

Math
A suitcase has a mass of 12,000 grams. What is the mass in kilograms? I say 12
Wednesday, April 15, 2015 by Adara

math
How many grams equal 7 kg?
Wednesday, April 15, 2015 by Adara

math
The life span of a DVD player produced by one major company is known to be normally distributed with a mean of 6.2 years. If 4.01% of these DVD players have a life span of more than 8 years, what is the standard deviation of the DVD player’s life span?  
Wednesday, April 15, 2015 by ananya

math
Test scores on a university admissions test are normally distributed, with a mean of 500 and a standard deviation of 100. a. What is the probability that a randomly selected applicant scores between 425 and 575? b. What is the probability that a randomly selected applicant ...
Wednesday, April 15, 2015 by ananya

math
What is the probability that a randomly selected applicant scores between 425 and 575? a. What is the probability that a randomly selected applicant scores between 425 and 575? b. What is the probability that a randomly selected applicant scores 625 or more?  
Wednesday, April 15, 2015 by ananya

even moar math
You own 5 pairs of jeans and want to take 2 of them with you on vacation. In how many ways can you choose 2 pairs of jeans? - 10 ways - 15 ways - 4 ways - 20 ways **
Wednesday, April 15, 2015 by guy

More math
Simplify 9C4. - 126 *** - 15,120 - 5 - 3,024
Wednesday, April 15, 2015 by guy

Math
Simplify 6P2. - 30 - 15 *** - 12 - 720
Wednesday, April 15, 2015 by guy

Simple math.
Simplify 5! -5 -15 * -120 -125
Wednesday, April 15, 2015 by guy

Math
If a man runs for an hour and a half at 8 miles an hour due south; and then he continues south on a bus traveling at 55 miles an hour, for 24 minutes. How far did he travel?
Wednesday, April 15, 2015 by Jim

Math
Without graphing, tell whether the line containing (6.-3) and (0,-8) is horizontal, vertical or neither. I believe it horizontal
Wednesday, April 15, 2015 by Lost

math
1. Name a pair of complementary angles. (1 point) angle sign1 and angle sign4 angle sign1 and angle sign2 .. angle sign3 and angle sign4 angle sign1 and angle sign6 2. If mangle sign1 = 37°, what is the measure of angle sign4? (1 point) 53° 43° 37° .. 27° 3...
Wednesday, April 15, 2015 by ollie

Math
can positive and negative X axis or positive and negative y axis have different scales? I mean that is it possible for positive and negative sides of a particular axis(X or Y) to have different scales if numbers to be plotted on one side large and small on the opposite side?...
Wednesday, April 15, 2015 by plz someone answer this

math
The value of the independent variable in a function is always __?__ the value of the independent variable A greater than B dependent on C equal to D less than
Wednesday, April 15, 2015 by Book-worm_girl

math
Renee is a sales associate at a store. She earns $80 a week plus a 15% commission on her sales. Last week, she sold $200 worth of items. What is the total amount Renee earned for the week? How much did she earn from commission?
Wednesday, April 15, 2015 by jose

math
Task is to construct two brick columns of the dimensions shown on which an iron gate will eventually be hung. Because the bricks measure 8" long by 3 1/2" wide by 2 1/2" high, you decide to build each column by laying the bottom row of bricks as shown.
Wednesday, April 15, 2015 by keana

6th Grade Math
Hi, can someone please give me a few examples of how people use functions in the real world and explain them too? Thank You :)
Wednesday, April 15, 2015 by MusicLover14

math
bruno is measuring water for an experiment. he fills a 2 litre container and a half liter container. how much water does bruno use altogether? give your answer in millilitres.
Wednesday, April 15, 2015 by walid

Math
Determine which ordered pair is a solution of y=x2 -2. (-2,6) (5,21) (-1,-1) (-5,24)
Wednesday, April 15, 2015 by Lost

math
find the length of an arc of a circle of radius 5.6 cm which subtends an angle of 60 degrees at the centre of the circle.(take pie as 22 divided by 7.)
Wednesday, April 15, 2015 by john

math
suppose a hat containing 100 balls consists of 20blue ball,30yellow balls,30red balls and 20green balls.a sample of 5 balls is drawn from the hat one by one without replacement.what is the probability that there will be 2blue balls in the sample
Wednesday, April 15, 2015 by pat

math
Given the equation - 3x +2y =4. Write another linear equation that will form a linear system with exactly one solution? I usually try to answer b4 i ask question But this time i'm really stuck. plz help ?
Wednesday, April 15, 2015 by Jay

math
Assume the brakes of an automobile produce a constant deceleration of k ft/sec^2. Determine what k must be to bring an automobile traveling 60 mph to a rest in a distance of 100 ft from the point where breaks are applied? With the same k, how far would a car traveling 30mph ...
Wednesday, April 15, 2015 by Barry

Math
Each day Julia's math Teacher gives class a warm up qs. It's true/false 20% of the times and multiple choice 80% . Julia gets 70% on true false correct and 90% on multiple choice correct. Julia answered today's question correctly. What's the probability that it...
Wednesday, April 15, 2015 by Jason

math
Elin estimates her probability of passing French 0.6, passing chemistry is 0.8, (a)determine the probability that elin will pass French but fail chemistry (b) pass chemistry but fail French (c) pass both classes (d)fail both classes
Wednesday, April 15, 2015 by sakura

algebra
I need some help with this math problem: Let n be the number of oil refineries at t years since 2005. A reasonable model of oil refineries is n= -2.23t + 210.53. What is the slope of this model? What does it mean in this situation?
Wednesday, April 15, 2015 by T

math
A rectangular pool measures 20ft by 30ft. It is bordered by a tiled walkway that is 7 ft wide. What is the area of the walkway?
Tuesday, April 14, 2015 by tajha

math
Jeff is replacing the tile on his floor. he pans to use square tiles that are 11 inches on a side. the floor is 8 feet long and 6 feet wide. cabinet in the middle of the floor that will not need tile. this space is 2 feet wide and 3 feet long. estimate how many title will be used
Tuesday, April 14, 2015 by Marty

math
Consider the equation y^2-12y=c, where c is a real constant. Assuming this equation has two distinct solutions y_1 and y_2, in terms of c, determine y_1y_2. i tried 12 and 0 they were both wrong,i have no idea what else to try
Tuesday, April 14, 2015 by Gem

Math
How would you fine the relative extrema of f(x)=x+8^-x ? I know the first step is to find the derivative, which when I did I got f'(x)=1+[(-1)(ln(8))(8^-x)] Did I find the derivative correctly? And if I did, how do I find the zeroes of that??
Tuesday, April 14, 2015 by Jackie

math
three triangles inscribed in a square. All tangents. What is the radius?
Tuesday, April 14, 2015 by Cindy

Math
6.A rectangle has a coordinate at (3,5),(3,8) and (9,5).Plot the points to determine the coordinate of the fourth point. a)(-3,5) b)(9,8) c)(8,9) d)(-9,8)*** 9.What is the length of the line segment between M(2,-9) and N(2,-14)? a)5 units*** b)6 units c)15 units d)23 units
Tuesday, April 14, 2015 by #HOMEWORK

math
Jerry is packing cylindrical cans with diameter 6 in. and height 10 in. tightly into a box that measures 3 ft by 2 ft by 1 ft. All rows must contain the same number of cans. The cans can touch each other. He then fills all the empty space in the box with packing foam. How many...
Tuesday, April 14, 2015 by Ray

6th grade math
Chris has made the following grades on five math test. 90,74,86,75,94 What score must Chris earn on the next math test to have a test average of exactly 85?
Tuesday, April 14, 2015 by Alex

6th grade math
While battling a forest fire , Samuel was only able to get three hours of sleep during the first day. What was the percent of the day was Sam awake F. 87.5% G. 37.5% H. 90% J. 10%
Tuesday, April 14, 2015 by Alex

math
20 percent of what number is 18
Tuesday, April 14, 2015 by Anonymous

math
If we say that rare events are those events that happen with a probability of less than .05, then how many observations of men taller than 71 inches tall would you have to observe when randomly sampling before concluding that you had a rare sample? mean = 69, SD = 4
Tuesday, April 14, 2015 by Anonymous

Math
The population of a small Midwestern town is 4500 The population is decreasing at a rate of 1.5% per year. Write an exponential decay function to model this situation. Then find the number of people in the town after 25 years.
Tuesday, April 14, 2015 by M

math
Given these probabilities: pr(rain) = .2 pr(snow)=.1 pr(cloudy)=.5 and pr(sun)=.2 pr(crash|rain or snow) = .2 pr(crash|cloudy or sun) = .05 what is the probability of a car crash?
Tuesday, April 14, 2015 by Anonymous

math
Numbers that are palindromes read the same forward and backward. For example, 30203 is a five digit palindrome. If a single number is chosen randomly from the set of all three-digit numbers, find the probability that it will be palindromic. Answer 1/10??
Tuesday, April 14, 2015 by timmy

math
Determine the number of odd, nonrepeating three digits numbers that can be written using digits from the set {1, 2, 3, 4}.
Tuesday, April 14, 2015 by timmy

MATH
whats the answer to this? write an equation fr an arithmetic sequence with a 1st term of 8 and 4th term of -7. im stuck.
Tuesday, April 14, 2015 by Samanta

Math
Is 12% greater than or less than 100%?Explain.
Tuesday, April 14, 2015 by Malik

Math
Farmer John (not the bacon guy) raises ducks and cows. He has 54 animals which all together have 122 feet. How many of each type of animals does Farmer John have?
Tuesday, April 14, 2015 by Erika G.

math
Marteen wants to paint 2/3 of her room today.She wants to paint 1/4 of that before lunch.How much of her room will she paint before lunch today? A.1/12 B.1/6 C.5/12 D.11/12
Tuesday, April 14, 2015 by Beth

Math
Write a compount interest function to model each situation. Then find the balance after the given number of years $27,000 invested at a rate of 3.75% compounded quarterly; 3 years
Tuesday, April 14, 2015 by M

Math
What percent is 3/8? a. 21 b. 38 c. 55 d. 68
Tuesday, April 14, 2015 by Angelina

MATH WORD PROBLEM HELP PLEASE
A water tank is in the shape of a right circular cylinder with a height of 20 feet and a volume of 320pi cubic feet. What is the diameter, in feet, of the water tank?
Tuesday, April 14, 2015 by Anonymous

math
find the first 3 term s of an arithmetic sequence in which the 21 term is -54 and the fifteenth term is -170
Tuesday, April 14, 2015 by Anonymous

Math
Neil needs to cut 3 long boards into 9 smaller boards. The first is 10 ft, the second is 16 ft, and third is 18 ft. The table lists the smaller boards Neil needs. Use a drawing to show how he can divide the 3 boards so there is no waste.
Tuesday, April 14, 2015 by Mimi

Math
Some number multiplied by -6 is 36. Multiply this number by 8. Divide the answer by 2. What is the final number?
Tuesday, April 14, 2015 by Anonymus

Math
Some number added to -12 is 45. Add this number to 30. Multiply the answer by 3. What is the final number?
Tuesday, April 14, 2015 by Sara

math
Neil needs to cut 3 long boards into 9 smaller boards. The first is 10 ft, the second is 16 ft, and the third is 18 ft. The table lists the smaller boards Neil needs. Use a drawing to show how he can divide the 3 boards so there is no waste. Length of board Number needed 4 ft ...
Tuesday, April 14, 2015 by Mimi

Math
Suppose the speedometer of your car reads 90 km/ hr. If you are driving in the united states where the maximum speed is posted as 50 mi/ hr By how much are you exceeding the speed limit.
Tuesday, April 14, 2015 by Jen

Math
Can someone do out the calculations for me on 7 yds , 1 ft,- 3 yds, 2 ft,= what in ft . Thanks
Tuesday, April 14, 2015 by Jen

math analysis
Two airplanes leave an airport at the same time. one travels in the direction of 38 degrees at 140mph and the other travels in the direction of 350 degrees at 180mph. After two hours, how far apart are they? Thanks
Tuesday, April 14, 2015 by jenas

Math
The figure below represents a garden in which a flower bed ( inner rectangle) is to be installed. The garden ( excluding the flower bed) is to be sodded. The outer is 9' ft width and 15' ft long and the inner is 3'ft wide and 7'ft long. A) Find the area of the ...
Tuesday, April 14, 2015 by Jen

math
You order sixteen burritos to go from a Mexican restaurant: seven with hot peppers and nine without. However, the restaurant forgot to label them. If you pick four burritos at random, find the probability that at least two of the burritos you pick have hot peppers.
Tuesday, April 14, 2015 by 0zz

Math
1. Simplify 6p2 a. 30*** b. 15 c. 12 d. 720 a. is my answer. is this correct?
Tuesday, April 14, 2015 by Check my answer?

math
Which number is not equal to one of the following expressions? 0.6038 x 1000 603.8 -: 10 60.38 -: 100 0.6038 603.8 60.38 6.038
Tuesday, April 14, 2015 by Anonymous

Math
You order sixteen burritos to go from a Mexican restaurant: seven with hot peppers and nine without. However, the restaurant forgot to label them. If you pick four burritos at random, find the probability that at least two of the burritos you pick have hot peppers. i can ...
Tuesday, April 14, 2015 by 0zz

Math
6.A rectangle has a coordinate at (3,5),(3,8) and (9,5).Plot the points to determine the coordinate of the fourth point. a)(-3,5) b)(9,8) c)(8,9) d)(-9,8)*** 9.What is the length of the line segment between M(2,-9) and N(2,-14)? a)5 units*** b)6 units c)15 units d)23 units
Tuesday, April 14, 2015 by #HOMEWORK

Math
Triangle S(-6,10)T(-9,3)U(-3,3) is translated right 2 units and 3 units down. What are the coordinates of the vertices of the image? s'(-9,12), t'(-12,5), u'(-6,5) s'(-4,7), t'(-7,0), u'(-1,0) s'(-8,13), t'(-11,6), u'(-5,6) s'(-4,10), t...
Tuesday, April 14, 2015 by Lost

math
You own 6 pairs of jeans and want to take 2 pairs on vacation with you. How many different ways can you take two pairs of jeans? 10 12*** 15 20
Tuesday, April 14, 2015 by Kailli

6th Grade Math Help & FAST!!!
I only have 2 questions. 1 is multiple choice and one I have to type so please help. 1. Which set of output values correctly completes the function table? This is the function table: y= 2x - 4. Input (x) 6, 2, -4. Output (y) those three slots all have question marks. A. 8, 2...
Tuesday, April 14, 2015 by MusicLover14

math
Methylpresnisolone (Solumedrol) is a glucocorticoid ordered for end-stage respiratory disease. You need to administer 125 mg IVP. It is available as 75 mg/mL. How many mL will you administer? Round to the nearest 10th mL. Write the NUMBER ONLY in the blank, not mL. I got 1.7 ml
Tuesday, April 14, 2015 by Clare

math
2x^2=64/x^2-4-x-4/x=8
Tuesday, April 14, 2015 by makayla

Math
Perform the calculations 6 ft, 5 in,-2 ft, 7 in = what in ft, and inches Thanks
Tuesday, April 14, 2015 by Michelle

Math
Perform the following calculations 7 yds , 1ft -3 yds, 2 ft= what in ft Thanks
Tuesday, April 14, 2015 by Michelle

math
Connections Academy what is 3! simplified as a 2 b 5 c 3 d 6*** simplify 10p4 a 210 b 360 c 5,040*** d 151,200 simplify 15c3 a 182 b 455*** c 2,730 d 910 my answers 1-d 2-c 3-b
Tuesday, April 14, 2015 by Kailli

Math
Find the cost of shingles for the gable roof roof below if one bundle covers approximately 33ft2 and costs $29.95.The top is both ways is 12.7 meters and down is 7.5 meters . Thanks
Tuesday, April 14, 2015 by Tina

math
A5-digit number has 7 in its place The digit in once place is 5 less than its digits at tens place The hundreds place digit is 4 times the digit at once place The digit at thousands place is the same as at hundreds place sum of all the digits is 33 write the number in standard...
Tuesday, April 14, 2015 by ayesha

math
why shud math be included in alll the streams
Tuesday, April 14, 2015 by Anonymous

math
who found a subject called math
Tuesday, April 14, 2015 by Anonymous

Math
1.Which pair of points forms a vertical line segment? a)(-3,5) and (5,-3) b)(4,-2) and (4,3)*** c)(-8,1) and (5,1) d)(2,3) and (-2,5) 2.What is the length of the line segment between A(-10,8) and B(-10,-3)? a)18 units*** b)5 units c)11 units d)12 units
Tuesday, April 14, 2015 by #HOMEWORK

Math
1.If the coordinates of a point have opposite signs, which quadrants could the point be in? a)Quadrants I and II b)Quadrants I and III*** c)Quadrants II and IV d)Quadrants II and III 2.Which ordered pair would be plotted by starting from the origin and moving 1.25 units right ...
Tuesday, April 14, 2015 by #HOMEWORK

Math
Find the cost of shingles for the gable roof below if one bundle covers approximately 33 ft to the power of two and costs $29.95. Length on top is 12.7 meters and down is 7.5 meters. Thanks
Monday, April 13, 2015 by Sharon

Math
Create two different situations: one in which you use combinations and one in which you use permutations. Include specific details and an explanation about what makes each situation either a combination or permutation. Can you give me some sites to look at? Thank you
Monday, April 13, 2015 by Dawn

Math
The voltage in an electrical circuit is multiplied by itself each time it is reduced. The voltage is 27/125 of a volt and it has been reduced three times. Write the voltage in exponential form.___________________________________​ What was the original voltage in the ...
Monday, April 13, 2015 by Rose R

math 8th grade
Face cards are removed from a standard deck of cards and the rest are set aside. two cards are drawn at random from the face cards. once a card is selected, it is not replaced. Find each possibility. P(jack and then king)? P(two black cards) answer 1/2 ?
Monday, April 13, 2015 by jill

Math
A 1965 U.S. half dollar contains 2/5 ounce of silver. How many ounces of silver do 100 of those coins contain?
Monday, April 13, 2015 by Shawn

Math
Suppose the speedometer of your car reads 90km/hr. If you are driving in the United States where the maximum speed is posted as 50 mi/hr by how much are you exceeding the speed limit.
Monday, April 13, 2015 by Sharon

Math
A flagpole is 5.4 meters high . Express this height in feet and inches.
Monday, April 13, 2015 by Tina

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