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February 8, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math
Please check 2/5 + (-7/8) = -6
Wednesday, October 15, 2014 by Joe

Math
Please check 15/16 x 2/3 = 5/8
Wednesday, October 15, 2014 by Joe

Math
3/4 of a puzzle in 7/8 hours What's the unit rate?
Wednesday, October 15, 2014 by Bree

Math
What's 4.32(3.7 + 1.65) I have 5.35 so far. And I'm just making sure what the answer is for 4.32 x 5.35
Wednesday, October 15, 2014 by Stefano

Math
Does anyone know an easy way to remember the leading coefficient test for end behavior? I cannot seem to remember how to determine the direction the graph should go on these problems.
Wednesday, October 15, 2014 by kim

math
solve this equation a divided into 7=20 the actual problem has the divide sign. I got a=20*7 so a=140
Wednesday, October 15, 2014 by Sara

Math
5.235 - 0.88
Wednesday, October 15, 2014 by Anonymous

Math
(-3) ^-4 5 ^-2 =?
Wednesday, October 15, 2014 by Anon

Math--1 question
Name the inverse operations for each of the following operations. a. addition b. division c. multiplication d. subtraction
Wednesday, October 15, 2014 by Anonymous

Math
For middle school pizzaz worksheet number 66, moving words.What's the answer? I need the answer, like, ASAP.
Wednesday, October 15, 2014 by Terra

Math
write each decimal as a percent: 1.07 35 0.003 0.0077 what do i do to convert the decimal into a percent??
Wednesday, October 15, 2014 by Stephanie

8th grade Math help
PLEASE HELP!!! Anita hikes 7 miles due east and then 3 miles due north. Rounded to the nearest mile, what is the shortest distance from the starting point to the ending point? A. 4 B. 6 C. 8 D. 10 I think it's B. am i right?
Wednesday, October 15, 2014 by haylee

Math
A basketball team won 70% of the 30 games they played. How many games did they win?
Wednesday, October 15, 2014 by Olivia

math
Find three consecutive positive even integers such that four times the first decreased by the second is 12 more than twice the third.
Wednesday, October 15, 2014 by Emily

math
To find the sum of 286+134 would you regroup once or twice explain
Wednesday, October 15, 2014 by aden

Math
Solve 4cos^2A = 3cosA for 90º≤A≤180º. (Enter only the number.) Find A when 0º≤A≤90º and 3tan^2A = 2tanA + 1. (Enter only the number.)
Wednesday, October 15, 2014 by TeeKay

Math
32x+36y+16=0 36x+32y+16=0 Find x and y
Wednesday, October 15, 2014 by Leah

Math
What are the steps to show the quotient in simplest form? Be sure to include various key words. 0.000027 divided by 0.000009 My answer 0.000027 divided by 0.000009=3 Definition of a quotient The answer after you divide one number by another. The qutient in this problem is 3. ...
Wednesday, October 15, 2014 by Anonymous

Math
1) What is the probability of winning the jackpot if you play the Florida Lotto? 2) What is the probability of winning the jackpot if you play Mega Millions? 3) What is the probability of winning the jackpot if you play Powerball? Tall versus Short All tall 787 tall 277 short...
Wednesday, October 15, 2014 by Kiara

Math
Which of the following appears to be an irrational number? A. 0.404404440... B. 0.783783783... C. -4/15 D. 6 Is the answer A?
Wednesday, October 15, 2014 by Anonymous

Math
A certain computer can perform 10^5 calculations per second. How many calculations can it perform ins 10 seconds? My answer: 10^5=100,000 Multiply by 10=10^6=1,000,000 Am I correct? Thank you
Wednesday, October 15, 2014 by Anonymous

math
in a triangle the sum of the angle is 180degrees. if angle A is three times angle B and Angle C is 10 degrees more than twice Angle A. Find the measures of the three anges to the newarest degree
Wednesday, October 15, 2014 by felesia

Math
Leah is making chocolate chip cookies and the recipe calls for 3/4 cup of chocolate chips. If she wants to make 2/3 of the recipe what fraction of the chips will she need?
Wednesday, October 15, 2014 by Anonymous

Math
Two pilots take off from the same airport. Mason heads due south. Nancy heads 23º west of south. After 400 land miles, how far is Nancy from Mason’s route? Round your answer to the nearest tenth of a mile. (Enter only the number.)
Wednesday, October 15, 2014 by TeeKay

Math
Which of the following appears to be an irrational number? A. 0.404404440... B. 0.783783783... C. -4/15 D. 6 Is the answer A?
Wednesday, October 15, 2014 by Anonymous

Math
Express 0.72 as a fraction in simplest form. A. 72/100 B. 100/72 C. 36/50 D. 18/25 Is the answer D?
Wednesday, October 15, 2014 by Anonymous

Math (Ms. Sue! Someone help)
Hi I really need help. I don't know even how to figure these two questions out so if you could help me, please. Is (–4, 10) a solution to the equation 10 – 5x = y? Explain your answer. Describe the pattern in the table using an equation. x|y 1|15 2|25 3|35 4|45 ...
Wednesday, October 15, 2014 by Emily

math
There are two simultaneous games. One game is flipping a coin. Payment of tail is $2.50 and head is $1.50. And the other game is rolling a six sided die and paying number of dollars shown on the face of the die. Both the coin and the die are determined simultaneously and are ...
Wednesday, October 15, 2014 by Samu

Math
Let sin A = 12/13 with 90º≤A≤180º and tan B = -4/3 with 270º≤B≤360º. Find tan (A + B).
Wednesday, October 15, 2014 by Molly

math
If 25 kids like chocolate cake and 25 other kids like strawberry cake how many kids like either?
Wednesday, October 15, 2014 by jimmie

Stat, Math
The image of the public library is constantly changing, and their online services continue to grow. Usage of the library's home page grew by 17% during the past 12 months. It has been estimated that the current average length of a visit to the library's homepage is ...
Wednesday, October 15, 2014 by fghd

math
The cost of 4 dozens penceles, 3 dozens pens and 2 dozens eraser is Rs.16. The cost of 2 dozens penceles, 4 dozens pens and 6 dozens erase is Rs.90 wheras the cost of 6 dozens pencils, 2 dozone pens and 3 dozens eraser is Rs.70 find the cost of each itomes per dozens by matrices
Wednesday, October 15, 2014 by tejas

math
Manuel painted 4 houses over the summer. John painted x houses. Patrick painted 2 houses. They painted 9 houses in all. How many houses did John paint? Not sure if it's x-(4+2)=9 or is it x+(4+2)=9
Wednesday, October 15, 2014 by Sara

math
The 17th hole at the famous St Andrews golf course is 420m in length. how long will it appear on a plan of course of scale 1:8000?
Wednesday, October 15, 2014 by abc

math
Max has 5 more than twice as many cookies as Chris. Write an expression that shows the number of cookies Max has if Chris has c cookies. 5+2x=c Not sure please help.
Wednesday, October 15, 2014 by Sara

math
How long will it take a car 3m long travelling at 100km/h to overtake a truck 10m long travelling at 50km/h, if the car is 10m behind the truck
Wednesday, October 15, 2014 by ben

Math
Which number will have the same result, when rounded to the nearest ten or hundred? Is it 97, 118 and 5, 179 or 5,091?
Wednesday, October 15, 2014 by Anonymous

math
What is the perimeter of a rectangle that has a area of 35 in to the square root of 2
Wednesday, October 15, 2014 by mario

6th grade math
a diver's elevation is -30 feet relative to sea level. she dives down 12 feet. what is her elevation after the dive? a. 12 feet b. 18 feet c. -30 feet d. -42 feet
Wednesday, October 15, 2014 by Alex

math college algebra
lynne is 24 years old. lynne is twice as old as jean was when lynne is as old as jean is now. how old is jean ?
Wednesday, October 15, 2014 by Justine Jay sarabosing

math
If jen can paint a room in 7 hours and jen and keith can paint the room in 4 hours. how long will it take keith to paint the room alone?
Tuesday, October 14, 2014 by kv

math
Find the general form of the equation of the plane passing through the point and perpendicular to the specified vector. [Be sure to reduce the coefficients in your answer to lowest terms by dividing out any common factor.] (8, 6, 3), n = i – 6j + k
Tuesday, October 14, 2014 by Morgan

Math Check
Are my answers right? 1.) Find the remainder (x^3+2x^2+3x+4)/(x+2) My answer: 2 2.) Find the remainder (x-1)/(x^4-3x^2+2x-1) My answer: -1
Tuesday, October 14, 2014 by Sofia

Math (Ms.Sue)
Marco ran from his house 2.67 miles to a county park. He then ran the 1.5 mile cross country loop at the park and back home. How many miles did Marco run altogether? I added and got 4.17 miles Is that correct
Tuesday, October 14, 2014 by Amy

math
Peter spent 2/5 of his pocket money on clothes and had #45 left.what was his pockey money
Tuesday, October 14, 2014 by Glo

Math
The ratio of games the Falcons won to the games they lost for the 2013 football season was 7:5. What is the ratio of games won to the total number of games played? What kind of ratio did you describe?
Tuesday, October 14, 2014 by Amy

math
sketch and label all possible rectangles with a perimeter of 30 cm and sides whose lengths are whole numbers help me tell my son what to do I don't understand
Tuesday, October 14, 2014 by Deborah

Math
without doing the computation, explain why or why not 19.7 is a reasonable value for the expression 122.14 divided by 6.2
Tuesday, October 14, 2014 by Avery

math
semir, sarah and sung so decided to raise money for a local homeless shelter by working in a local deli. the deli agreed to donate to the shelter a portion of the profits from each meal the three sold. semir sold 3 times as many meals as sarah. sung sold 2 more meals than ...
Tuesday, October 14, 2014 by harry

Math
Mrs. Daniel pays $324 for a handbag and 3 pairs of shoes. The handbag cost half as much as the 3 pairs of shoes combined. Find the cost of the hand bag.
Tuesday, October 14, 2014 by Amber

Math
Can you think of situations in which it might be preferable to compute with decimals rather than fractions or to compute with fractions rather than decimals, give examples of each situation and tell why you think that number form is preferable
Tuesday, October 14, 2014 by Avery

Math
If each of the 3,121 members in a community drank 267 glasses of water in a year, about how many glasses of water would be consumed by that community in a year? Estimate by rounding each term to the greatest place.
Tuesday, October 14, 2014 by Anonymous

Math
Gary is 61 1/8 inches tall. his friends Gino and Gilbert are 56 1/2 inches tall and 63 1/8 inches tall, what is the average heigh of the three friends
Tuesday, October 14, 2014 by Anonymous

Math
There are four brown shoes and 10 black shoes on the floor. your puppy cares away two shoes and puts one shoe in the trashcan and one in the laundry basket. a. What is the probability that there will be a black shoe in the trash and a brown shoe in the laundry basket?
Tuesday, October 14, 2014 by Abby

math
how do i work this problem 8x25x23 using subtraction in mental math
Tuesday, October 14, 2014 by john

math
the height of a ball thrown vertically upward from a rooftop is modelled by h(t)=-5t^2 +20t+50. Determine the maximum height of the ball.
Tuesday, October 14, 2014 by Robert

math
These problems I really don't understand and really need serious help :) 1.What the product of (5.1 x 10^3)x (3.2 x 10^3)?(Please express your answer in scientific notation) 16.32 x 10^6 .... 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2.What is the product of (7.28 x 10^-2)x(...
Tuesday, October 14, 2014 by somebody help i am new

math
These problems I really don't understand and really need serious help :) 1.What the product of (5.1 x 10^3)x (3.2 x 10^3)?(Please express your answer in scientific notation) 16.32 x 10^6 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2.What is the product of (7.28 x 10^-2)x(9.1 x...
Tuesday, October 14, 2014 by somebody help i am new

math
in recent year, the world production of wheat was about 5.2 *10^8 metric tons. Canada produced 1/25 of this wheat. about how much wheat did Canada produce?
Tuesday, October 14, 2014 by nemo

math
what is the quotient (2.965 x 10 ^7) divided by (5 x 10^3)?
Tuesday, October 14, 2014 by nikk

math
alyssa has saved 26 quarters from washing cars. how many cents does alyssa have?
Tuesday, October 14, 2014 by ana

Math
How to solve 2^-1/5^2 ?
Tuesday, October 14, 2014 by Anon

math
suppose 8 out of every 20 students are absent from school less than 5 days a year. Predict how many students would be absent from school less than 5 days a year out of 40,000 students.
Tuesday, October 14, 2014 by makaila

math
5 less than three times the number of chipmunks. We got 3x-5 but weren't sure.
Tuesday, October 14, 2014 by Sara

science/math
you have the same volume of two different liquids. what are two ways you can tell which has greater density? Answer: by comparing its Weight and mass
Tuesday, October 14, 2014 by need help

Math
Is this ratio in simplest form 14:12?
Tuesday, October 14, 2014 by Amy

Math
The ratio of games the Falcons won to the games they lost for the 2013 football season was 7:5. What is the ratio of games won to the total number of games played? What kind of ratio did you describe?
Tuesday, October 14, 2014 by Amy

math
1/2(x-2)<3/4(1-3x)<-2
Tuesday, October 14, 2014 by calistus

math
1/2(x-2)<3/4(1-3x)<-2
Tuesday, October 14, 2014 by calistus

math
1/2(x-2)<3/4(1-3x)<-2
Tuesday, October 14, 2014 by calistus

math
Jane is organizing her 24 dolls into equal sized piles. What is the possible number of dolls that could be in each pile?
Tuesday, October 14, 2014 by Martha

Math
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A - B).
Tuesday, October 14, 2014 by Molly

Math
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A + B).
Tuesday, October 14, 2014 by TeeKay

Physical Science- Math skills
Rachel is asked to calculate the density of a liquid. She correctly measures the mass of the liquid to be 14 grams, but she incorrectly measures the volume of the liquid to be 10 mL. The actual volume of the liquid is 9 mL. If Rachel uses the following equation to calculate ...
Tuesday, October 14, 2014 by Capri

Math
Select all the true statements about identities. A) You may use proven identities to prove other identities. B) An identity is true only for restricted values of the variables. C) You can prove an identity by graphing the side to the left of the equal sign, graphing the side ...
Tuesday, October 14, 2014 by TeeKay

Math
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A - B).
Tuesday, October 14, 2014 by TeeKay

Stasticstics/math
A teacher wants to compare the mean geology scores of two different classes. She is testing the null hypothesis that there is no difference in the population mean scores of the two classes. The difference of the sample means is 51.4. If the standard deviation of the ...
Tuesday, October 14, 2014 by Gabby

Foundations and Pre-Calculus Math 10
Find the radius of a cone with a height of 3m and a volume of 30m cubed. So far I have 90m cubed / 3m = pi(r^)3m/3m. Then I get stuck. Help! I'm really bad at math. ):
Tuesday, October 14, 2014 by Amber

Math
Hi I really need help. I don't know even how to figure these two questions out so if you could help me, please. Is (–4, 10) a solution to the equation 10 – 5x = y? Explain your answer. Describe the pattern in the table using an equation. x|y 1|15 2|25 3|35 4|45 ...
Tuesday, October 14, 2014 by Hannah

math
In a suspension bridge, the shape of the suspension cables is parabolic. The bridge shown in the figure has towers that are 400 m apart, and the lowest point of the suspension cables is 100 m below the top of the towers. Find the equation of the parabolic part of the cables, ...
Tuesday, October 14, 2014 by Morgan

Math
what is 603kg = ? g. I don't get how to do the problem
Tuesday, October 14, 2014 by Kayla

Math
A sphere has a volume of 200m3 . What is the volume of the smallest cube that this sphere would fit inside of? (Hint: try drawing a diagram of a side or top view of this situation)
Tuesday, October 14, 2014 by Bob

Math 116
If the length of a rectangle is increased by 10% and the width of the rectangle is decreased by 10%, is the area changed? If so, does it increase or decrease and by what percent? Explain your answer.
Tuesday, October 14, 2014 by Dawn

Math 130
Can i find the perimeters of the following figures Square Rectangle and Circle
Tuesday, October 14, 2014 by Enis

Math
Larry and Gary are discussing whose garden has the most area to plant flowers. Larry claims that all they have to do is walk around the two gardens to get the perimeter and the one with the greatest perimeter has the greatest area. How would you help these students?
Tuesday, October 14, 2014 by Ellie

3 grade math
How can I find the area of an angle?" How do you respond?
Tuesday, October 14, 2014 by Ellie

Math
If john makes 60 k a year , how much does he make each month?
Tuesday, October 14, 2014 by John

Math
ABCDEF is a regular hexagon. If BA and CD are extended until they intersect, what is the measure of the angle formed?
Tuesday, October 14, 2014 by Brianna

math prajishaa
if 10% is vat is charged on an article bought by sandeep for rupees 6930 what is the selling price of the article
Tuesday, October 14, 2014 by cbse 8th

math usha kk
a refrigerator is marked at rupees 14500 if 16%vat is charged find the total amount that she will have to pay to the shopkeeper
Tuesday, October 14, 2014 by cbse 8th

math prasad vk
by selling a saree for rupees 2000 the shopkeeper made a profit of 20% what was the cost price of the saree
Tuesday, October 14, 2014 by cbse 8th

math school g
salman purchased 8 wood panels for rupees 1500 each for transporting them to his shop he had spend rupees 800 he then gave the panels a veneer wich cost him rupees 8000 he sold 4 panels for rupees 3200 each calculate his total profit or loss %
Tuesday, October 14, 2014 by cbse 8th

Math
Are the statements Always, Sometimes or Never. Please explain why. Thanks. 1. An equilateral polygon is regular. 2. The greater the number of sides of a regular polygon, the smaller the measure of any of its exterior angle. 3. The sum of the measures of the interior angles of ...
Tuesday, October 14, 2014 by Brianna

Math
1. The measure of an interior angle of a regular polygon is 20 more than thrice the measure of its adjacent exterior angle. Find the number of sides of the polygon and its total number of diagonals. 2. Find the sum and difference between the sum of the measures of the interior...
Tuesday, October 14, 2014 by Brianna

math
Determine whether the fractions in each of the following pairs are equal: a: a^2/b and a^2b/b^2 b: 377/400 and 378/401 c: 0/10 and 0/-10 d: a/b and a+1/b+1, where "a" is not equal to "b" or a =/= b
Tuesday, October 14, 2014 by Anna

math
Yoon Ki drove from Phoenix to tucson in 1 1/2 hours. then she drove from tucson to el paso in 4 3/4 hours. the second part of her trip was how many times as long as the first part.
Tuesday, October 14, 2014 by diana

math
150 men live in a certain town: 85 are married 70 have a cell phone 75 own a car 55 are married and have a cell phone 35 have a cellphone and a car 40 are married and have car 30 are married, have a car and have a cellphone. How many men are single and do not have a car? How ...
Tuesday, October 14, 2014 by Nia

Math
Write a paragraph proof of this theorem: In a plane, if two lines are perpendicular to the same line, then they are parallel to each other
Tuesday, October 14, 2014 by Carrie

math
I need to know how to find a number that makes the statement true so that I can help my daughter. 1/2 < ?/8
Tuesday, October 14, 2014 by mom

math
compare and contrast: below are two equations. solve each equation and compare the two solutions. choose the statement that is true about each solution. equation #1 2x-3=-17 5x+3=12 A. equation #1 and equation #2 have the same number of solutions B. equation #1 has more ...
Monday, October 13, 2014 by HELLP PLEASE

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