# Homework Help: Math

## Branches of Math

## Recent Math Questions

**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*

**math**

A particle, which remains at rest, is acted on by three forces F, G, and H. The force F has magnitude 6N and is directed to the right and up, making an angle of 20' with the vertical. The force G has magnitude 15N and is directed to the right and down, making an angle of 55' ...

*Sunday, February 5, 2017 by s17*

**math**

If John was five years older he would be exactly one-third the age of James. If John was three years younger he would be exactly one-sixth the age of James. How old is James? Just need help with the equation, thanks.

*Sunday, February 5, 2017 by Anonymous*

**Math**

Find the area of cardboard wasted if a sector of maximum possible side is cut out from a square cardboard of size 24cm.

*Sunday, February 5, 2017 by Saran*

**Math**

The length of a picture is 15cm more than its width. The picture frame has a width of 4cm. What is the minimum length of material needed to make the frame for this picture? *I am not good a Maths at all and even though i've tried to get help, I just dont seem to get it; its ...

*Sunday, February 5, 2017 by Saphia*

**Math**

My numerator is 2 less than my denominator I am more than 1/2 what fraction can i be?

*Sunday, February 5, 2017 by Angel*

**Math**

Three boys and three girls all celebrate their birthday today, but they are each different ages. The youngest is 1 years old. The sum of the ages of the three girls is the same as the sum of the ages of the three boys. What is the smallest possible total of all six ages?

*Sunday, February 5, 2017 by Andy*

**Math**

Using suffix notation and the summation convention, prove that u.del*u= w x u+ del(1/2q^2) where w= del x u and q= /u/?

*Saturday, February 4, 2017 by Nick*

**Math**

I am struggling with how to start this problem. The following points are on the graph of: y=f(x) Use theorem to identify the corresponding points on the transformed functions. y = 2f(x-3)-2

*Saturday, February 4, 2017 by Mel*

**math**

You are going to build a glass box. The length of the box is 8 inches more than the width and the height is half the length. The length of the wire to make the frame is 108 inches. 1.What are the dimensions of the box? 2.All six faces of the box will be panes of glass. What is...

*Saturday, February 4, 2017 by maggie*

**Math - Factoring Trinomials**

I need help factoring 2y^2-2y-24. The answer I got was 2(y+3)(y+3). However the correct answer is 2(y+3)(y-4).

*Saturday, February 4, 2017 by Anonymous*

**math**

a man picks 6 pounds of pecans. he used 1/3 pecans in a pie recipe. he puts the pecans that are left in 1/4 pound bags. how many bags of pecans does he have

*Saturday, February 4, 2017 by lisa*

**math**

On December 10, 1999, Apple Computers' stock was valued at $615 billion; Microsoft's stock was valued in that quarter at $271 billion. How much more value is Apple's stock at its peak over Microsoft?

*Saturday, February 4, 2017 by Sandy*

**math**

A window in a building is 15.0m above the ground. From this window the angle of elevation to the top of the second building is 32degrees and the angle of depression to the bottom of the second building is 17degrees. What is the height of the second building? -diagram needed ...

*Saturday, February 4, 2017 by bob*

**Math**

-9 times the difference between a number and 63 is equal to the number plus -49 unknown is x . Is this write? -9(x-63)=x+(-49)

*Saturday, February 4, 2017 by Maleka*

**Math**

What number should be added to -50 to get a sum of 95?Write out the equation.X is the unknown.

*Saturday, February 4, 2017 by Maleka*

**Math**

I'm struggling with factoring these two questions. 36x^4 - 3x^3 - 18x^2 9x^2 + 3xy - 2y^2

*Saturday, February 4, 2017 by Leila*

**Math**

PLZ ANSWER: The plan of a park is at a scale of 1:5000. Calculate the actual distance between two points if the distance between two points on the map is: a)2 cm (How many meters?) b)2.8 cm (Give answer in meters) c) 7cm (Meters)

*Saturday, February 4, 2017 by Clarissa*

**MATH HELPO!!!**

Convert the map scale to a unit rate. How many inches represent one mile? Show your work. Interpret the meaning of the unit rate. 3/10 in. = 7/8 mi no map just need someone to solve this unit rate FASTLY

*Saturday, February 4, 2017 by J-kid*

**Math (Tensor Notation)**

Using suffix notation and the summation convention prove that u.del(u)= w x u + del(1/2q^2) where w= del x u and q=/u/

*Saturday, February 4, 2017 by Nick*

**math**

??point? divided by 8 equals ?point??? pls give two or three examples thank you:D

*Saturday, February 4, 2017 by everleigh*

**math**

how to change fraction 1.20/.80 into percentage?

*Saturday, February 4, 2017 by sukh*

**math**

The enrollment at a university increased from 9,000 students to 12,500 students over a period of 5 years. What is the percent increase in enrollment?

*Saturday, February 4, 2017 by sukh*

**math**

The height of a right circular cone is decreased by 6 percent. Find the percentage that the radius of the base must be decreased by so that the volume decreases by 20 percent. Recall that the formula for the volume of a right circular cone is V = πr2h 3

*Saturday, February 4, 2017 by sukh*

**math**

If the length of the base of a triangle is increased by 10 percent and the height is decreased by 20 percent, what is the percent change (increase or decrease) in the area of the triangle?

*Saturday, February 4, 2017 by sukh*

**math**

If the denominator of a fraction decreases by 20 percent, and the numerator increases by 20 percent, by what percentage does the value of the fraction change?

*Saturday, February 4, 2017 by sukh*

**math**

PQRS is a cyclic quadrilateral. Then find the value of x

*Saturday, February 4, 2017 by abcd*

**math**

what is the volume of a rectangular prism with a length of 11 meters, width of 26 meters, and height of 38

*Saturday, February 4, 2017 by Nyan*

**math**

Fido weighs 26 pounds more than Fifi. Fifi weighs 12 pounds less than Rover. If the sum of their weights is 71, how much does Fifi weigh?

*Saturday, February 4, 2017 by Dave*

**Math**

If the angle of elevation of a tower from two points at distance a and b where a is greater than b from its foot and in the same straight line from it are 30degree and 60degree ,find the height of the tower

*Saturday, February 4, 2017 by Vaibhavi singh*

**Math**

How to solve | x + 1 | << 3 graphically? Ty

*Saturday, February 4, 2017 by Susan*

**Math**

Is there a formula/method for finding a vertical line that divides a trapezoid into 2 parts with equal areas when all the vertices are known?

*Saturday, February 4, 2017 by Anonymous*

**Math**

Find 2 numbers whose arithmetic mean exceeds their geometric mean by 2and whose harmonic mean is 1/5 of the larger number

*Saturday, February 4, 2017 by Rangesh*

**Math**

Find the range of each function over the given domain. A) y=x^2 for 0 << x << 3

*Saturday, February 4, 2017 by DIg*

**Math**

Given the sequence 4;-2 ; 1 find the next two term. 4;-2;1;-3;-1

*Saturday, February 4, 2017 by Anonymous*

**math**

After a drought, the Great Salt Lake in Utah covered an area of 2450 kilometers squared or 35/64 the area of the lake under normal weather conditions. Find the area of Great Salt Lake under normal weather conditions.

*Friday, February 3, 2017 by Steven*

**Math : ratio and proportion**

if a scooter requires 2 litres of petrol to cover 80 kilometre then how many litres of petrol does it require to cover 1 kilometre?

*Friday, February 3, 2017 by Navya*

**Math**

Frank has $20 less than Tracy. John has twice as much as Frank. Patty has three times as much as John. Together they have $340. How much does each person have?

*Friday, February 3, 2017 by Mason*

**Math - fractions**

Name 4 fractions between 1/2 and 5/7

*Friday, February 3, 2017 by Nolan*

**Math**

The radius of the larger circle is 9cm. The diameter of the smaller circle is 11cm. Find the area of the shaded region The shaded area is between the larger circle and smaller circle . It is concentric The area of the larger circle is 81Ï€. The smaller circle has area 121...

*Friday, February 3, 2017 by Nicki*

**Math**

A pencil costs $3.50 and a pen costs $6.70. Jessica bought m pens. She also bought 4 fewer pencils than pens. Write an algebraic expression for the total amount she spent. The answer supposed to be 6.70m + 3.5 (m-4). I got confused of what to do

*Friday, February 3, 2017 by Bobby*

**Math**

A colony of bees doubles in population every 5 weeks.hpw long does it take for the population to triple ?

*Friday, February 3, 2017 by Mike*

**math**

Ali is planning to keep fit through practicing push-ups for 21 days. on the first day, he can only do 14 push-ups in a minute. He plans to do x more push-ups in a minute on the next day. How many push-ups can he do in a minute on 11th days? (in term of x)

*Friday, February 3, 2017 by Dina*

**math**

(3+1/2)x14 is it 49

*Friday, February 3, 2017 by jac*