Saturday
February 25, 2017

Homework Help: Math

Branches of Math

Recent Math Questions

Math 10C
Janet needs a rectangular piece of cardboard measuring 21 ft by 24 ft for a school project. a) What is the area of the cardboard in square feet? b) What is the area of the cardboard in square yards? Show your calculations in two different ways. c) The store charges $0.35/m2 ...
Tuesday, February 7, 2017 by Kevin

math
If a basketball player missed 41 free throws out of 100, what fraction and what percentage of free throws did the player make?
Tuesday, February 7, 2017 by Sylvia

math
kitty is 4 years younger than mario three years from now she will be two thirds as older as mario .find their present ages
Tuesday, February 7, 2017 by asiana

Math
What must be added to 40 to make 10 by powers of 2 ?
Tuesday, February 7, 2017 by Ale

Math
The two triangle-shaped gardens are congruent. Find all of the missing side lengths and angle measures. Show any necessary work. (Triangle) • On the left, a triangle is shown with a lower horizontal side labeled 7.9 yards, a vertical right side labeled lower u, and a ...
Tuesday, February 7, 2017 by Agala

Math
Which ordered pair would be plotted by starting from the origin and moving 0.25 units left and then 3 units up? A) (3, -0.25) B) (0.25, -3) C) (-0.25,-3) D) (-0.25, 3)
Tuesday, February 7, 2017 by Anon

Math
A gymnasium is 50m long and 30m broad. A running track 2. 5m wide runs all around it on the inside. Find the area of the track?
Tuesday, February 7, 2017 by Aayat

math
The ratio of girls to boys in a school is 5:3. If there 60 boys, how many girls are in the school? I guessed it is 5+3=8.8/60
Tuesday, February 7, 2017 by joy

math
i have four digits i am more than 2500 i am less than 3000 my hundred digits id 6 my tens digit is one less than my hundreds digit my unit digit is 0 what number am i?
Tuesday, February 7, 2017 by jess

math
Hi can someone help me i am takeing a test i am in connexus adamaey i need help on my test
Tuesday, February 7, 2017 by joe

math
Two no which have same digit their sum is 9and difference is 27what will be the nos
Tuesday, February 7, 2017 by maths

Math
The sides of the rectangle are in the ratio of 4:7. If its length is 31.5 in., find the width, the perimeter, and the area of this rectangle.
Tuesday, February 7, 2017 by Amy

Math
How many positive integers, not having the digit 1, can be formed if the product of all its digits is 33750. With solution pls:)
Tuesday, February 7, 2017 by K

business math
A firm manufacture and markets a product that sells for Birr per unit .Fixed cost associated with activity total Birr 40,000 a month ,while variable cost per unit is Birr 10.A maximum of 10,000 units can be produced and sold
Tuesday, February 7, 2017 by bitu

math
a family has 3 children the eldest is 8 years older than the middle child and the youngest is 12 years younger than the eldest child of the total of their age is 88 how old is each child?
Tuesday, February 7, 2017 by we

Math
A tennis ball is hit into the air and can be modeled by h=16t*2++40t+3, where h is the height t is the time it takes the ball to travel. 1) At what time t does the ball reach its maximum height above the court? How high did the ball go? 2) How long did it take the ball to hit ...
Tuesday, February 7, 2017 by Harold

Math
(i) Evaluate integral [ x^3 / (x^2 + 4)^2 ] using trigonometric substitution. (ii) Evaluate integral [ x^3 / (x^2 + 4)^2 ] using regular substitution. (iii) Use a right triangle to check that indeed both answers you obtained in parts (i) and (ii) are the same. I would really ...
Tuesday, February 7, 2017 by Jack

Math
She needs to prepare 160 pounds of blended coffee beans selling for ​$3.69per pound. She plans to do this by blending together a​ high-quality bean costing ​$5.00 per pound and a cheaper bean at ​$2.00 per pound. To the nearest​ pound, find how much​ high-quality ...
Tuesday, February 7, 2017 by Brandy

Math
The result of reflecting across the line y = x and then rotating 330 degrees counterclockwise around the origin is an isometry T . Represent T by a 2 ⇥ 2 matrix. There is more than one way to do it. Use the point (1, 1) to check your answer. I know how to make the matrices ...
Tuesday, February 7, 2017 by Amy

Math
Edwin runs 1/8 around a track in 2 minutes.he runs for 4 minutes. Then he walk for another 3/8 mile.how far does Edwin go around the track?
Monday, February 6, 2017 by johntrae

Math
Mrs.Walters drove 360 miles on 25 miles of gas. Mr.Walter drove 480 miles on 32 gallons of gas. find the mileage per gallon of each car.which variable getting the better mileage per gallon. Mrs Walters 360 / 25 mpg = 14 2/5 mpg Mr Walters 480 / 32 mpg = 15 mpg Mr. Walters car ...
Monday, February 6, 2017 by Help I need somebody not just anybody

Math
1. There are 18 boys and 12 girls in a math class.what is the ratio of girls to total students? A.18:30 B.(12:30) C.30:12 D.30:18 2.which of the following ratios are equivalent to 6:9? Choose all that apply. A.3:2 B.18/27 C.(30:45) D.(24/32) 3.what is the unit price for one CD...
Monday, February 6, 2017 by Help I need somebody not just anybody

Math
Which equation(s) represents a proportional relationship? A) y=7x² B) y=2+3x C) y=1/2x D) y=5-x B, C, D Which equation(s) represents a proportional relationship? A) 5+x B) y=4x C) 7x² D) 2-x A, B, D
Monday, February 6, 2017 by Hayden

Math
Using the correct number of significant figures, calculate the perimeter and volume of a small, rectangular mirror that is 4.040 in long, 1.707 in wide, and 0.078 in thick. Make sure to calculate the the perimeter of the front of the mirror, and not the side. Dimensions are ...
Monday, February 6, 2017 by Anonymous

Math
If g(x)=x+3 h(x)=9-x^2, what is the maximum of h(g(x))?
Monday, February 6, 2017 by Rachel

Math
If cscØ = 4/3, find sinØ + sinØ cot^2 Ø
Monday, February 6, 2017 by Brian

Math
If tan(-a)=-5, find cot a
Monday, February 6, 2017 by Elise

Math
An open box is formed from a piece of cardboard 12 inches square by cutting equal squares out of the corners and turning up the sides. Find the volume of the largest box that can be made. Help!
Monday, February 6, 2017 by Tracy

Math 2
If your playing a game where you have 4 cards and you have to arrange them in to 2 digit numbers so they add up to a number near 100, and then you take the number you got and subtract it from 100, and then you play this game 7 times with 3 other people, and when you add up all...
Monday, February 6, 2017 by Andy

Math
Find the critical points, and the points of inflection y= (x+1)^2/x Help me please!!!
Monday, February 6, 2017 by Sara

math
touchdowns are six points per touchdown and an extra point can be awarded by making a field goal. Assuming that a team makes a field goal every time they score, write an equation to find "y" the total score for "x" amount of points.
Monday, February 6, 2017 by Terra

Math
The formula for the volume of a cube is V equals S3 where X represents the side length of the cube find the volume of a cube with side length of 0.5 millimeters
Monday, February 6, 2017 by James

Math
A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds. Connections answers please?
Monday, February 6, 2017 by Anonymous

Math
Translate this sentence into an equation. 56 is the sum of 13 and Vanessa's height Use the variable v to represent Vanessa's height.
Monday, February 6, 2017 by Reedus

math
You find a sales receipt from a store that shows the total price as $40, and the total amount paid including sales tax as $42. a. Write an equation you can use to find the sales tax rate which is r. what is the equation so I tried all things I could think of but it doesn't ...
Monday, February 6, 2017 by leanna

Math
The population of a city has been decreasing exponentially since 1990. In 1990, the population was 1,000,000. In 2010, the population was 560,000. If t represents time in years since 1990, which of the following equations best models the decay of the population? 1. y = 1,000,...
Monday, February 6, 2017 by Rayhan

PLLZ!PLLZ help with math quick!!!!!
6.Suppose you have a drawer full of white, black, and yellow pairs of socks. If the probability of picking a white pair of socks is 4/9, and the probability of picking a black pair of socks is 7/18, what is the probability of picking a yellow pair of socks? a. 1/6 b 5/25 c 7/...
Monday, February 6, 2017 by plz plz help, i will fail 7th grade if i fail this

Math
3' x 4.5' quilt, 24 equal squares, i need to know the side length of one square, i need to show the equation to show my work.
Monday, February 6, 2017 by Ruben

math PROBABILITY part 2
6.Suppose you have a drawer full of white, black, and yellow pairs of socks. If the probability of picking a white pair of socks is 4/9, and the probability of picking a black pair of socks is 7/18, what is the probability of picking a yellow pair of socks? a. 1/6 b 5/25 c 7/...
Monday, February 6, 2017 by plz plz help, i will fail 7th grade if i fail this

Math
Does the function represent exponential growth or exponential decay. Identify the growth or decay factor. y=9 x (1/2) I'm not sure how to make the chart to show the decay.
Monday, February 6, 2017 by Sam

Math
the speed of sound is approximately 1.2 x 10^3km/h how long does it take for sound to travel 7.2 x 10^2km. answer in minutes
Monday, February 6, 2017 by Sam

math
644 students packed a school's auditorium for a assembly. students sat in 12 rows. Rows were divided into 8 sections.
Monday, February 6, 2017 by shakeela

math help quick please
solve {y=x-7 {5x+2y=7 Use the substitution method. A.(0, −7) B.(7, 0) C.(3, −4) D.(−1, −8)
Monday, February 6, 2017 by lily

Math
alex is painting the side of his school. he paints a wall that has an area of 41 1/3 square yards. he uses 1 1/3 gallons of orange paint. what is alex's rate of paint coverage in square yards per gallon?
Monday, February 6, 2017 by Person

math
a photograph has an area of 80sq inches.the length of the photo is 1 1/4 width. what is the following dimension of the photgraph?
Monday, February 6, 2017 by lara

Math
If two fair dice are rolled, what is the probability that a total showing is either even or less than eight? Thanks for your help
Monday, February 6, 2017 by MD

Math PROBABILITY part 1
Anna mixes the letters S, E, L, E, C, T, E, and D thoroughly. Without looking, Mary draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that E will NOT be the letter Mary selects? A. 3/8, 0.375, 37.5% B. 8/5, 1.6, 16% C. 5/8, 0.625, 62.5...
Monday, February 6, 2017 by plz plz help, i will fail 7th grade if i fail this

math
Convert the scale to a unit rate. 3/8 in = 3/4 yd
Monday, February 6, 2017 by Anonymous

math plzzz help quick
What is the y-coordinate of the solution of the system of equations? {y=2x+14 {-4x-y=4 Enter your answer in the box. y =
Monday, February 6, 2017 by lily

math
three times a certain number is not greater than 54, find the range of values of the number
Monday, February 6, 2017 by olam

math
The radius of a circle is 17 feet. Using the formula A = r2, what is the area of the circle? Use 3.14 for pi.
Monday, February 6, 2017 by Lily

math plzzz help quick
What is the y-coordinate of the solution for the system of equations? {x-y=-11 {y+7=-2x Enter your answer in the box. y =
Monday, February 6, 2017 by lily

Math
How many lines of semmetry are found in the following figure The figure is a rectangle
Monday, February 6, 2017 by Lovely

More math
determine wich ration forms a proportion with 20/24 by writing the ratio in simplest form
Monday, February 6, 2017 by J-kid

Please help (MATH)
If two fair dice are rolled, what is the probability that a total showing is either even or less than eight? How would I solve this question? What are the steps? Thanks
Monday, February 6, 2017 by Maddie

MATH
The odds in favor of Carl beating his friend in a round of golf are 7 : 4. Find the probability that Carl will lose. would the answer be 7/11?
Monday, February 6, 2017 by Maddie

Math Ms. Sue
population density is the number of people per unit area what is the population density of a state that has 1329192 people in 35385 square miles round to the nearest hole number
Monday, February 6, 2017 by J-kid

Math
Decide if the following pair of functions are of the same order. The functions f(x) and g(x) are of the same order if f(x) is O(g(x)) and f(x) is Ω(g(x). (a) f(x) = x^2 - 7 and g(x) = x^2 + 7
Monday, February 6, 2017 by Winston

Math
The perimeter of an isosceles trapezium is 134 cm and the bases are 54 cm and 30 cm in length.find the length of nonparallel sides of the trapezium and its area.
Monday, February 6, 2017 by Mensuration

Veterinary Medicine Math calculations
I was so thankful to see this exact question answered in a different way but I still don't understand how I'm suppose to know how or what to do on the following question. I just seem to always forget something. Fifty milliliters of a solution of 50% dextrose is added to a ...
Monday, February 6, 2017 by Selina

Math
Suppose the P(A) = 1/6 . Find the odds in favor of A . Would you explain the step by step process? thanks!
Monday, February 6, 2017 by Lily

Math
write a ratio for both ecuations in three ways comparing the first quantity to the second quantity 1.a zoo has 17 monkeys and 12 chimpanzees 2.in greenvile about 1 in every 8 homes has three computers
Monday, February 6, 2017 by J-kid

math
6. There is an animal at the Toledo Zoo that needs to be transported to the Cincinnati Zoo. The distance between the two cities on the map is 12.2 cm. Using the scale on the map below, how many miles apart are the two cities? Make sure you label your answer. *
Monday, February 6, 2017 by Anonymous

math
5. The Wright Brothers are credited for the birth of aviation. There is a museum dedicated to them in Dayton. If you live in Mansfield, this museum is 8.1 cm away using the map. Using the scale on the map below, how many miles apart are the two cities Make sure you label your ...
Monday, February 6, 2017 by Anonymous

math
1. Did you know Chillicothe was once the capital of Ohio? The distance from Chillicothe to the current capital, Columbus, is 48 miles. Using the scale on the map below, how many centimeters apart are the two cities? Make sure you label your answer.
Monday, February 6, 2017 by Anonymous

Math
In a distribution, Q.D= 15 and co-efficient of Q.D=0.3 75% of the observation are less than? a)67 b)65 c)78 d)75
Monday, February 6, 2017 by AnnA

Math
If 6 out of 36 students were absent, what percent were present?
Monday, February 6, 2017 by Teon

MAth
A biologist wants to estimate the number of fish living in a lake. She caught 106 fish, tagged each one, and then released them back into the lake. After a few days, she caught 227 fish, and found that 11 of them were tagged. Use a proportion to estimate the number of fish ...
Monday, February 6, 2017 by Santana

Math
A jug has 400 mL of 1/2 strength orange juice. The following amounts of full-strength juice are added to the mix. Find a fraction to describe the strength of the orange drink after the full-strength juice is added a) 100 mL I don't get what this question is trying to ask for.
Monday, February 6, 2017 by Anonymous

math
Can someone help explain the sequence of this pattern? Thanks. 1/3 , 5/6 , 4/3
Monday, February 6, 2017 by Anonymous

math
by working 8 hour a day 13 farmers can plough a field in day 15 day . in how many day will 26 farmer plough the same field if they work 10 hours a day
Monday, February 6, 2017 by mohan

Math
there are 10 questions in a quiz competition 5 marks will be given for each Correct answer 3 marks will deducted for each wrong answer or no response m be the number answers and s be the obtained .write down the formula for calculating the marks obtained
Sunday, February 5, 2017 by Venus

math
What is the loop that forms after many iterations when the initial value of g is 1.7? What is the loop that forms after many iterations when the initial value of g is 1.72?
Sunday, February 5, 2017 by Nicole

Math
A frog was at the bottom of a 12-meter hole. Each day it climbed up 3 meters but always slid back 2 meters. How many days will take the frog to get out of the hole?
Sunday, February 5, 2017 by Gabby

Math:Integers
The sum of two integers is zero. the difference of the same two integers is 12. What are the two integers?
Sunday, February 5, 2017 by Gabby

math
which of the following can represent the measure of the three angles in an acute triangle A)59,61,62 B)30,25,125 C)56,72,52, D)90,45,45
Sunday, February 5, 2017 by dipper pines

Math
The mean of five numbers is 20. Four of the numbers are 24,19,25, and 22. What is the fifth number? PLZ HELP ME BEFORE SCHOOL STARTS.show me how to get the answer
Sunday, February 5, 2017 by Jechica

Math
Divide into intervals and evaluate to find the max/min. f(x)= -(x-1)^2(x+4) I pick -2 -(-2-1)^2(-2+4)=-18 Is that the correct answer
Sunday, February 5, 2017 by Aria

Math
f(x)=1/2(x^2-2x+15) I did the quadratic formula and my answer is 2 plus or minus i square root 8/2. Could someone check my answer please
Sunday, February 5, 2017 by Pam

Math
Sketch the graph of the following polynomial. (Label all x intercepts, y intercepts, maxima, minima, and identify the range and domain.) f(x)= 1/2( x^2-2x+15)
Sunday, February 5, 2017 by Pam

Math
I have worked and reworked this problem, but I cannot seem to figure it out. Can anyone help? Jeffries & Sons is borrowing $95,000 for four years at an APR of 7.05 percent. The principal is to be repaid in equal annual payments over the life of the loan with interest paid ...
Sunday, February 5, 2017 by Sam

math
In a bag there are 3 green apples,5 yellow apples,7 green pears and 2 yellow pears,Simon randomly is taking fruit out of the bag by one by one. How many fruits must he take out in order to be certain that he has at least one apple and one pear of the same color?
Sunday, February 5, 2017 by shane

math
Juanita wants to gives bags of stickers to her friends.She wants to give the same number of stickers to each friend. She is not sure if she needs 4 bags or 6 bags of stickers .How many stickers could she buy so there are no stickers left over?
Sunday, February 5, 2017 by katie

Math
A store owner bought some flower pots for $1,200.the flower pots were sold for $2,700,with a profit of $30 per pot.how many flower pots did she sell?
Sunday, February 5, 2017 by Riya

Math
The number has four digits. It is greater then 11,but less then 12. The sum of the four digits is 13. The digit in the hundreds place is 6. What is the number
Sunday, February 5, 2017 by Kevin

Math
On a rainy day,20% of the 55 pupils in a class were absent.How many pupils were present on that day?
Sunday, February 5, 2017 by Vanessa

math
Katie invested a total of ​$6000 ​, part at 3 ​% simple interest and part at 4 ​% simple interest. At the end of 1​ year, the investments had earned ​$214 interest. How much was invested at each​ rate?
Sunday, February 5, 2017 by anthony

Math
write an equivalent equation that does not contain fractions then solve the equation 2/3x + 1 = 1/2
Sunday, February 5, 2017 by Avis

math
Oceanographers use a quantity known as shoreline development to describe and categorize bodies of water. Shoreline development, D, measures how closely a body of water resembles a circle. Its formula is: where L is the shoreline length and A is the area of the body of water. ...
Sunday, February 5, 2017 by Aria

math
If A is 120% more than B, by what percentage is B less than A?
Sunday, February 5, 2017 by sukh

math (precalc)
let F(x)=x-1/3x find f(a+h)-f(a)/h sorry if this is difficult to understand.
Sunday, February 5, 2017 by Kyle

math
Laura inherits $30,000 and decides to invest part of it in an education account for her daughter and the rest in a 10-year CD. If the amount she puts in the education account is $5,000 more than twice the amount she puts in the CD, how much money does Laura invest in each ...
Sunday, February 5, 2017 by chris

Math
Prove that limit(z -> z_0) z^2 = z_0^2 I must show that for any positive number E that there exists a positive number delta so that whenever this is true: 0 < |z - z_0| < delta then this is true: |z^2 - z_0^2| < E
Sunday, February 5, 2017 by John

Math
Suppose you want to install carpet in a hexagon room whose sides are all 15 ft long. Carpet costs $48 per sq yd and comes in rectangular rolls that are 12 ft by 90 ft. (Sold by the whole sq yd) How will you lay the carpet? Where will the seams be? How many pieces will you need...
Sunday, February 5, 2017 by Tamara

Math
I have 100 bucks to buy 100 fruits. The fruits which I need to buy are- mango; which is 20 piece for 1 buck, lichi; which is 1 piece for 1 bucks and coconut; which is 1 piece for 5 bucks. How many each of those fruits do I have to buy to get this result-100 fruits for 100 bucks?
Sunday, February 5, 2017 by Amanda

Math
I have 100 bucks to buy 100 fruits. The fruits which I need to buy are- mango; which is 20 piece for 1 buck, lichi; which is 1 piece for 1 buchan and coconut; which is 1 piece for 5 bucks. How many each of6the fruits do I have to buy to get this result-100 fruits for 100 bucks?
Sunday, February 5, 2017 by Amanda

Math
Rahul spent half the money he had on a notebook and half of that amount on a pen.He is now left with RS10. How much money did he have initially?
Sunday, February 5, 2017 by Omm

Math
K: 1) simplify: 1 - 1/2 + 1/4 - 1/8 + 1/16 - 1/32 2) Simplify: (1/2 - 1) - (1/3 - 1) + (1/4 -1) 3) In the proportion x^2 : 27 = 9 : x^3, what is x? 4) Between what two consecutive integers does cube root of -100 lie? 5) What is the area of a rectangle whose sides are thrice as...
Sunday, February 5, 2017 by K

math
the diameter of a roller is 70 cm and its length 1.12m. find the area of a playground, if it takes 250 complete revolutions to move once over the playground to level it.
Sunday, February 5, 2017 by vinay

math
Let f be the invertible linear transformation represented by the matrix A = (-2 -3 2 -3) Find in terms of x and y the equation of the image f(C) and of the unit circle C
Sunday, February 5, 2017 by s17

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