Wednesday
July 27, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math
Arianna has a large piece of fabric that she wants to use to make some scarves. The number N of scarves she can make is inversely proportional to the area A of each scarf. If the area of each scarf is 3 square feet, then she can make 15 scarves. If the area of each scarf is 5 ...
Thursday, May 12, 2016 by Claire

math
What is the value of x? x over 4 equals 14 over 16 x/4 = 14/16 x=3.5 ?!??
Thursday, May 12, 2016 by anna

math
Arianna has a large piece of fabric that she wants to use to make some scarves. The number N of scarves she can make is inversely proportional to the area A of each scarf. If the area of each scarf is 3 square feet, then she can make 15 scarves. If the area of each scarf is 5 ...
Thursday, May 12, 2016 by Claire

math
check my answers pls 1. which solid has two bases that are triangles and three lateral surfaces that are rectangles a. triangular pyramid b. rectangular prism c. triangular prism *** d. rectangular pyramid 2. a solid with two parallel and congruent bases cannot be which of the...
Thursday, May 12, 2016 by 666name999

Math/Precal
How many 4 digit numbers greater than or equal to 3000 and less then 8000 can be formed with no repition in there digits??
Thursday, May 12, 2016 by Bub

Math
A group consists of 5 boys and 6 girls. How many committees of 5 can be formed that consits of 2 boys 3 girls. Multiple choice: a)150 b) 200 c) 1800 d)2400
Thursday, May 12, 2016 by Carli

Math
a geometric progression has a third term of 20 and a sum to infinity which is three times the first term. find the first term
Thursday, May 12, 2016 by Dave

Math
a sum to infinity which is three times the first term. find the first term
Thursday, May 12, 2016 by Dave

math
tow pols of haights between 6meter and 11meter stand on a plane graund .if the distanse between the feet of the poles 12 meter .the distanse their tops equal to
Thursday, May 12, 2016 by azmat

math
the price of tickets were reduced to 20%. the total number of sales of tickets increased by 60%. find the percentage increase of tickets.
Thursday, May 12, 2016 by imli

math
How many gram of sodium fluoride should be added to 100000 liter of drinking water containing 0.6 ppm of sodium fluoride to provide a recommended concentration of 1.75 ppm? Answer is 115 grams. I keep getting .115 g What am I doing wrong? Please help.
Thursday, May 12, 2016 by Jessica

Math
Matt cut a circle into 8 equal parts.He drew an angle that measures the same as the total measure of the 3 sections in the circle.What is the measure of the angle Matt drew?
Thursday, May 12, 2016 by Sakura Matsuo

math
In a class of ten pupils the grades in a spelling test were: 97 − 97 − 97 − 92 − 92 − 85 − 76 − 73 − 65 − 60. The mode ofthose scores is: Read more
Thursday, May 12, 2016 by priti shaw

Math
compare the graphs of the inverse variations by comparing asymptotes, similar points, lines of reflections and quadrants y=-0.7/x and y=-0.9/x
Thursday, May 12, 2016 by apop

math
Consider five circles with radii of 1, 2, 4, 8, and 16 inches. Complete the chart. (Answers will be in terms of Pi). One has been completed for you. |Radius|Circumference|Area| |1|2pi in.|pi in.^2| |2| |4| |8| |16| Help I have no idea what I'm supposed to do
Thursday, May 12, 2016 by Bear

Math
If a man travels at an average speed of 112 km,how far will he travel in 3 hours and 45 minutes
Thursday, May 12, 2016 by Rearabetswe

math
a line is drawn from the origin to a point on the ellipse 9x^2+25y^2=225.find the equation of the locus of midpoint of the line.
Thursday, May 12, 2016 by ekpe

Math
The LCM of two number is 40.one of the number is 5.what is the other number?
Wednesday, May 11, 2016 by Lisha

Math
What percentage of her turn around the board did Shonda land on giant Bank what is the ratio in simplest form of the number of times she landed on the giant Bank to the numbers of times she landed on the deposit on deposit.
Wednesday, May 11, 2016 by Adynn

math
Jenna baked apple pies for a family reunion. Each pie was cut into 9 pieces. Her family ate 28 pieces of pie. Write the number of pies Jenna's family ate as an improper fraction and as a mixed number.
Wednesday, May 11, 2016 by Anonymous

math
A mechanic needs a radiator to have 40% antifreeze solution. The radiator currently is filled with 5 gallons of 15% antifreeze solution. How much antifreeze mixture should be drained from the car if the mechanic replaces it with pure antifreeze. Drain__ gallons from the ...
Wednesday, May 11, 2016 by anonymous

math
lighthouse x has a radius of 18 mi lighthouse z has a radius of 28 mi lighthouse z lights up how much more area than lighthouse x? round answer to the nearest tenth.
Wednesday, May 11, 2016 by josephine

math
The Connecticut River flows at a rate of 5 km / hour for the length of a popular scenic route. If a cruiser to travels 4 hours with the current to reach a drop-off point, but the return trip against the same current took 6 hours. Find the speed of the boat without a current? ...
Wednesday, May 11, 2016 by duran

math
Roscoe must play 9 commercials during his 1-hr radio show. Each commercial is either thirty seconds or sixty seconds long. If the total commercial time during that hour is 6 minutes, how many commercials of each type does Roscoe play? Round answers to the nearest whole number...
Wednesday, May 11, 2016 by duran

Math
A car travel 300 miles on 15 gallons of gas. what is the unit rate?
Wednesday, May 11, 2016 by Briley

Math
6:50 is the hour hand closer to the 6 or the 7 hoe do you know
Wednesday, May 11, 2016 by Yen

math
A trapizoid has a area of 33.6 and a height of 4 what is the sum of the b1 and b2?
Wednesday, May 11, 2016 by kalya

math
This question involves the Richter's scale and it goes like this: According to Richter's scale magnitudes of earthquakes can be obtained from the following formula: M=logE÷1.44-3.64 . E stands for the free energy of a 6.4 earthquake ,calculate the magnitude of ...
Wednesday, May 11, 2016 by Maya

math (PLZ HELP ASAP)
A rectangular field is 240m wide. The width of the field is 3 8 the length. What is the area of the field in square kilometers, rounded to the nearest thousandth?
Wednesday, May 11, 2016 by Anonymous

math (pLZ HELP ASAP)
A train averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains. If a trip of 300 miles took 3 hour and 48 minutes, how much of it was through the mountains?
Wednesday, May 11, 2016 by Anonymous

math (PLZ HELP ASAP)
a dad has two daughters – Wendy and Julia. Wendy is twice as old as Julia. The man is now five times as old as Wendy, and in 4 years he will be six times as old as Julia. Find the present age of the father.
Wednesday, May 11, 2016 by Anonymous

MATH
A model airplane is 11 inches in length. The actual length of the airplane is 209 feet. what is the scale used to build the model?
Wednesday, May 11, 2016 by Saniah

Math/Precal
In a poker hand of 5 cards how many ways can you get a full house? (3 of a kind and a pair)
Wednesday, May 11, 2016 by Maxx

Math
The time t required to drive a certain distance varies inversely with the speed r. If it takes 4 hours to drive the distance at 35 miles per hour, how long will it take to drive the same distance at 45 miles per hour? about 3.11 hours********* 140 hours about 5.14 hours 393....
Wednesday, May 11, 2016 by Mike

Math
A model of an airplane is 11 inches in length. The actual length of the airplane is 209 feet. What is the scale used to build the model? Please Help Me!!!
Wednesday, May 11, 2016 by Saniah

math
Which equation matches the following description?James loves making smores when he goes camping with his family.He puts half a chocolate bar on every smore.The number of chocolate bars,c,James needs is dependent on the number of smores,s,he wants to make. c=2s c=1/2s S=2c s=1/2c
Wednesday, May 11, 2016 by John

math
P divided by 7 equals 15 what is p
Wednesday, May 11, 2016 by lily

Math/Precal
What are the first three terms in the expansion of (-4x-3)^5??
Wednesday, May 11, 2016 by Hurly

Math
A group consists of 5 boys and 6 girls how many committees of five can be formed that consists of 2 boys and 3 girls?
Wednesday, May 11, 2016 by Mark

Math
Of 120 owners of reptiles surveyed, 27 own snakes as pets. What percent of the reptile owners own snakes as pets? plz help me!!!!!!!!!!!!
Wednesday, May 11, 2016 by Graclynn

Math
During peak seasons, a hotel room costs $135 per night. During the off-seasons, it costs $90 per night. What is the percent of change from peak season to off-season? PLEASE HELP ME!!!
Wednesday, May 11, 2016 by Mayla

Math
An isosceles triangle has a perimeter of (9y-3)cm.what is the length of the two equal sides if its side is(3y-7)cm?
Wednesday, May 11, 2016 by Teye

Math
Paul borrows $600 at an interest rate of 8% per years for 4 years. How much interest will he have to pay?
Wednesday, May 11, 2016 by Tina

math help ASAP
A school basketball team has 3 wins and 2 loses, the school won 3 times and outscored there opponents by points by 15,10,9 the 2 losses they got outscored by 12 and 8 points, write an addition integer statement for the 3 wins, write a addition integer statement for the 2 loses.
Wednesday, May 11, 2016 by lolol

Math
How many real-number solutions does the equation have? –7x2 + 6x + 3 = 0 one solution two solutions*********** no solutions infinitely many solutions
Wednesday, May 11, 2016 by Mike

Math
a carpenter divides a board that is 3.5 inches wide into 4 pieces of equal widthby cutting 3 places. if the width of her saw blade is 1/8 inch, what is the finished width of each piece? What percent of the board length is actullay used?
Wednesday, May 11, 2016 by Alison

Math
What is 5 quarts to 5 gallons as a fraction in simplest form?
Wednesday, May 11, 2016 by Alexxa

MATH
A school basketball team has 3 wins and 2 loses, the school won and outscored there opponents by points by 15,10,9 the 2 losses they got outscored by 12 and 8 points, write an addition integer statement for the 3 wins, write a addition integer statement for the 2 loses.
Wednesday, May 11, 2016 by LOLOL

Math
Ali has 4 mangoes,Joe has 3 how many more mangoes does Ali have
Wednesday, May 11, 2016 by Prince

Math ounces to pounds
What is 3text books in pounds or ounces?
Wednesday, May 11, 2016 by Elexis

math
what is an equation for a sine curve with amplitude 2, and period 4pi radians?
Wednesday, May 11, 2016 by twiddles

Math
How many different 2 digit numbers can be formed from the digits 1-6, if repetition is not allowed?
Wednesday, May 11, 2016 by Bub

Math
What is the numerical coefficient of the term x^3 in (2+x)^5
Wednesday, May 11, 2016 by Cali

7th Math
A game requires drawing balls numbered 0 through 9 for each of four digits to determine the winning number. Describe a model that could be used to simulate the selection of the number.
Wednesday, May 11, 2016 by murph

7th Math
Ming rolls a number cube, tosses a coin and chooses a card from two cards marked A and B. If an even number and heads appear, Ming wins, no matter which card is chosen. Otherwise Lashonda wins. Find P (Ming wins)
Wednesday, May 11, 2016 by murph

Math
Write an inequality to represent the situation. The temperature stayed above -15 degrees.
Wednesday, May 11, 2016 by Math_kid

7th Math
Alana tosses 2 number cubes. She wins if she rolls double sixes Find P (Alana wins)
Wednesday, May 11, 2016 by murph

math
A bag contains 4 red, 4 blue, 4 green, and 4 yellow marbles. A marble is randomly pulled from the bag and replaced seven times. The table shows the outcome of the experiment. TRIAL - OUTCOME 1 - YELLOW 2 - BLUE 3 - YELLOW 4 - RED 5 - BLUE 6 - YELLOW 7 - YELLOW Which marble ...
Wednesday, May 11, 2016 by roma

MATH
Tony has a bucket filled with 10 green, 3 blue, 1 red, and 7 yellow tennis balls. He removes 4 tennis balls from the bucket, without replacement. Which of the following outcomes could represent this selection? A. All of the tennis balls are blue. B. There is 1 tennis ball of ...
Wednesday, May 11, 2016 by roma

MATH
A bucket contains 5 green tennis balls and 2 yellow tennis balls. Tony removes 2 tennis balls, with replacement, from the bucket shown. What is the probability that Tony will choose a yellow tennis ball and then a green tennis ball?
Wednesday, May 11, 2016 by roma

math
Julie is four times as old as her daughter.In four years time she will be three times as old. How old are they now
Wednesday, May 11, 2016 by linda

Math
What is the opposite of a professional
Wednesday, May 11, 2016 by Anyssa

Math "Need Help Asap"!
7.)Which proportion can be used to solve the following percent problem? What is 50% of 70% A.)X/70 = 50/100 B.)X/50 = 70/100*** C.)50/70 = X/100 D.)70/X = 50/100 B?
Wednesday, May 11, 2016 by #FreeGucci

MATH
A spinner is divided into equal parts 1-5. George spun the spinner 300 times. A table of outcomes is shown. Part- Times Spun 1 - 42 2 - 66 3 - 63 4 - 72 5 - 57 Based on the table, what is an estimated probability of the spinner landing on an even number?
Wednesday, May 11, 2016 by roma

Math "Need Help Asap"!
5.)Estimate 48% of $20.00 A.)About $12.00 B.)About $11.00 C.)About $15.00 D.)About $10.00*** D?
Wednesday, May 11, 2016 by #FreeGucci

Math
Find an equation in standard form for the ellipse that satisfies the given condition with major axis endpoints (1,-4) and (1,8), minor axis length 8.
Wednesday, May 11, 2016 by Akau

math
A spinner is divided into blue green and red parts. George spins the spinner 300 times. Below is the table of outcome Part Time Spun Blue 91 Green 107 Red 102 Based on the table what was George's experimental probability of spinning red
Wednesday, May 11, 2016 by roma

Math "Need Help Asap"!
3.)What % is equivalent to 2/3? A.)33 2/3% B.)150% C.)66 2/3%*** D.)65% C?
Wednesday, May 11, 2016 by #FreeGucci

math
A bag contains 3 red marbles and 6 blue marbles. What is the probability of randomly selecting a red marble from the bag
Wednesday, May 11, 2016 by roma

math
the angle of depression of a ship from a top of a tower is 46deree. a. If a ship is 126m from the foot of the tower, calculate the height of the tower. b. If the height of the tower is 72m tall, calculate the distance between the (i) ship and the foot of the tower (ii) ship ...
Wednesday, May 11, 2016 by Josehp

math
simpify 4!
Wednesday, May 11, 2016 by Anonymous

Math
Find the volume of revolution when the region enclosed by the functions f(x)= e^x , g(x)=e^-x ,and the two lines is revolved about the x-axis Solution V=intergrate e^2x-e^-2x dx From -1to1 1/2e^+e^-2x when you sub and cal. =0 why please help me
Wednesday, May 11, 2016 by Ali

Math
7 boys share 5 chocolate bars equally how much do the get?
Wednesday, May 11, 2016 by Sandra

Math
Make a table and graph each quadratic function. Use integers from -3 to 3 for inputs. #4- y= -x2 #5- y=2x squared #6- y= -8x squared #7- y= x squared + 2 Make a table and a graph for each function. Use only positive values for x. #10- y= 10/x #11- y= 8/x Write a quadratic ...
Wednesday, May 11, 2016 by Math

Math
-1/2(x-20)+2/3x=20 CAN SOMEONE SOLVE THIS FOR ME I SM STUCK IN IT I DID MY OTHERS I NEED HELO WITH THIS ONE
Wednesday, May 11, 2016 by PLEASE HELP

math
the table below shows the eye color of 30 students in Ms. Carroll's class. blue-4, green-5, brown-11, hazel-7, and other-3. what is the probability that one student, selected at random from the 30 surveyed will have hazel or green eyes.
Wednesday, May 11, 2016 by Anonymous

Math
If a substance has a half life of 600 seconds. If a scientist begins with an initial amount of 1kg complete the following problems: create an exponential equation using proper variables?
Wednesday, May 11, 2016 by Cali

Math
What is (4x^2-2x-1)-(3x^3+2)
Wednesday, May 11, 2016 by Libragirl

math
How do you write 19/2 as a percentage?
Wednesday, May 11, 2016 by ???

Math algebra
evaluate 4x^2(2x+x^3y)+x^y for x = 5 and y=0 Evaluate 4 (x/5)^2+3 when c =20
Wednesday, May 11, 2016 by PLEASE HELP

Math "Need Help Asap"!
4. Alice plays basketball. In one game she shoots 21 free throws and makes 81.25% of them. Estimate how many free throws she makes. a. about 16 b. about 2 c. about 20 d. about 14 A?
Wednesday, May 11, 2016 by #FreeGucci

math
How do you write 159% as a fraction or mixed number in simplest form?
Wednesday, May 11, 2016 by ???

math
How do you write 130% as a fraction or mixed number in simplest form?
Wednesday, May 11, 2016 by ???

math
Silas claims that the equation y = 2 + mx, where m is a real number, represents a function whose graph is a straight line
Wednesday, May 11, 2016 by tyrece

math
How do you write 84% as a fraction or mixed number in simplest form?
Wednesday, May 11, 2016 by ???

math
if out of two numbers, one number is increased by 10% and other number by 20%,find percentage increase in the product of the two numbers
Wednesday, May 11, 2016 by imli

math
8. The half-life of a certain radioactive material is 71 hours. An initial amount of the material has a mass of 722 kg. Write an exponential function that models the decay of this material. Find how much radioactive material remains after 17 hours. Round your answer to the ...
Wednesday, May 11, 2016 by emily

math
Someone help me!! square root = sqrt (5x^2-5x-10)sqrt(x+7) + (2x+6)sqrt(x+2) >= x^3+13x^2-6x-28 thank you!
Wednesday, May 11, 2016 by Athenal

Math
Please this problem to me There is a stack of 8 cards from 1-8 suppose we select a card randomly from the stack, replace it, then randomly select another card What is the probability the first card is a even number and the second card is greater than 6 write answer in simplest...
Wednesday, May 11, 2016 by Donna

math
6. The half-life of a certain radioactive material is 32 days. An initial amount of the material has a mass of 361 kg. Write an exponential function that models the decay of this material. Find how much radioactive material remains after 5 days. Round your answer to the ...
Wednesday, May 11, 2016 by emily

Math
A 10 sided dice numbered 1 to 10 rolled four times. a)Write how many outcomes will we get? b)What are the possible outcomes?
Wednesday, May 11, 2016 by Ajay

Math
You invest your $20000 savings in a term deposit for 3 years at 5.5% p.a. compounding monthly. The compound interest formula is A=P(1+r/n)(to the power of)nt Would it be - P=20000 r=5.5 n=12 (months) t=3 (years)
Wednesday, May 11, 2016 by Brodie

Math/Biology
8c) The scanning objective lens (4x) of a microscope has a diameter of field of 6.0 mm and a total magnification of 40x. The high power objective lens has a total magnification of 400x. Estimate the diameter of field of view of the high-power objective lens by using the ...
Wednesday, May 11, 2016 by Anonymous

math
A baseball diamond is actually a square with 90 feet between the bases. The pitcher's mound is 60.5 feet from home plate. How far is the pitcher's mound from the first base? Round all answers to 1 decimal place I used the Pythagorean theorem and got 66.6. Is that right?
Wednesday, May 11, 2016 by Emily J

math
Tobi is training to run a marathon. In the first week she runs 25 km and increases this distance by 10% each week. This situation may be modelled by the series 25 + 25(1.1) + 25(1.1)2 + . She wishes to continue this pattern for 14 weeks. How far will she have run in total when...
Tuesday, May 10, 2016 by Elle

Math
Why is the Cartesian System unique? The Cartesian System is unique because you can specify any point uniquely in a two or three dimensional space by using two or three Cartesian coordinates
Tuesday, May 10, 2016 by Sue

Math
36 miles per gallon to miles per quart. (1 gal=4 qt)
Tuesday, May 10, 2016 by Sandy

Math
Ed is thinking of. number. If he adds four to his number, the result is less than 6. Write and solve an inequality about Ed's number
Tuesday, May 10, 2016 by Sandy

math
a 14 foot ladder placed against a vertical wall of a building with the bottom of the ladder standing on level ground 9 feet from the base of the building. how high up the wall does the ladder reach?
Tuesday, May 10, 2016 by john

math
Describe Sam´s location relative to the theater. Ordered pairs:Sam (4,2),Theater:(-3,5)
Tuesday, May 10, 2016 by John

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