Friday
May 27, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math
The ordered pairs (2 -17) and (5 -35) are solutions to which of the following equations? y=-6x+5 y=6x-5 y=6x+5 y=-6x-5
Friday, May 13, 2016 by doglover

math
show 3/8,3/4,1/4,2/4,and 5/8 from least to greatest
Friday, May 13, 2016 by pj

math
I feel dumb for not knowing how to do this, but how would these numbers be converted into cents? $.003253 per kWh. $0.00825 decrease per kilowatt hour
Friday, May 13, 2016 by Tessa

math
Video Villa rents classic video games for $2.50 for 5 days. New games rent for $3.50 for 5 days. If Rob rents c classic games and n new games, what is his cost per day, in dollars, for renting the games for 5 days? Select one: a. 0.50c+0.70n b. 0.50c+0.75n c. 0.25c+0.35n d. 0....
Friday, May 13, 2016 by Claire

BIO PLEASE HELP!
Identify the Protist and explain why you think it is what you said. We took dead leaves from outside, put them in boiling water then looked at them a week later. Link to image below! LINK: postimg. org/image/gu1201se9/ Ive attempted to look everywhere but i can't find a ...
Friday, May 13, 2016 by Jen

Math
A researcher tagged 40 giant turtles in 2008. In 2009 she returned and captured 50 turtles, 16 of which were tagged. in 2010 she returned again and captured 30 turtles 8 of which were tagged. a: Use a proportion to estimate the turtle population for 2009 b: Use a proportion to...
Friday, May 13, 2016 by Lily

Math
Divide (x^2+2x+ over x^2-8x+16) over(x+1 over x^2-16) A. (x-1) (x+4)over x+1 B.(x+1)(x+4)over (x-4) C. (x+1)(x+4)over (x-1) D.(x-1)(x-4)over (x+4)
Friday, May 13, 2016 by Anonymous

Math
A researcher tagged 40 giant turtles in 2008. In 2009 she returned and captured 50 turtles, 16 of which were tagged. in 2010 she returned again and captured 30 turtles 8 of which were tagged. a: Use a proportion to estimate the turtle population for 2009 b: Use a proportion ...
Friday, May 13, 2016 by Lol:3

Math
Find the first 4 terms in the expansion of ((3x^4)-(2/y^5))^9
Friday, May 13, 2016 by Justin

math
1. add or subtract {4x^2+15x-3}-(3x^2+5) a.7x^2+15x-8** b.x^2+12x+2 c.x^2+15x-8 d.7x^2+8 2. Simplify the polynomial -3f^2+4f-3+8f^2+7f+1 a.5f^2-11f+2 b.11f^2+11f+2** c.5f^2+11f-2 d.-5f^2+11-2 3. Add or subtract (2x^2+6x+1)+(-7x^2+2x-3) a.5x^2-4x-2 b.-5x^2+8x-2 c.5x^2-8x+2** d...
Friday, May 13, 2016 by please help

Math
There are 12 students to be seated in a row of 12 chairs. Paul and Martha have broken up and will not sit together. How many different seating arrangements are possible?
Friday, May 13, 2016 by John

Math
If x>0 and 2x^2+3x-2=0 what is the value of x?
Friday, May 13, 2016 by Josh

Math
Which of the following is a certain event? A. Rolling a composite number on a number cube B. Rolling a number greater than 1 on a number cube C. Rolling an odd or even number on a number cube D. Rolling a number greater then 7
Friday, May 13, 2016 by FartHead

Math
-3n = 10-2n
Friday, May 13, 2016 by Tristen

Math
Simplify into one fraction. 6/x+2-1/x+9
Friday, May 13, 2016 by Anonymous

Math
Simplify m - 2 - 4m - 5
Friday, May 13, 2016 by Malcolm

Math
8x - 4 - x = -5
Friday, May 13, 2016 by Kayla

Math
How many 4 digit numbers are greater then 7538 can be made using the digits, 0,3,5,7,8,9 without repetition?
Friday, May 13, 2016 by Halee

Math
-4 - x = -5
Friday, May 13, 2016 by Tanner

Math
(2/3)y + 4 = 12
Friday, May 13, 2016 by Marybeth

math
how many 12" tiles does it take to cover an area of 10 square feet?
Friday, May 13, 2016 by stew

Math
Solve the IVP: y' = y + y^3 , y(0)=1
Friday, May 13, 2016 by Anonymous

Math
2/3y+4=12
Friday, May 13, 2016 by Marybeth

Math (Trig)
A clock tower has been constructed such that the center of the clock is 40 feet above ground. The minute hand on the clock is 3 feet long. How far above the ground the end of the minute hand at 12:05? 1:00?
Friday, May 13, 2016 by Bree

math
Classify the triangle with sides of lengths 24, 24, and 4
Friday, May 13, 2016 by Anonymous

Math
Help please. .6 is 266 2/3% of what number?
Friday, May 13, 2016 by Beth

math
A friend drives 15 miles west and then 5 miles east. How far away is she from her starting point?
Friday, May 13, 2016 by Anonymous

math
Find the image of (3,6) reflected across the y-axis
Friday, May 13, 2016 by Anonymous

math
A ball is dropped from a height of 256 ft. With each bounce, the ball reaches a height that is half the height of the previous bounce. After which bounce will the ball rebound to a maximum height of 1 ft?
Friday, May 13, 2016 by rebecca

math
Five children in the Woods family have decided to purchase an anniversary gift for their parents. They estimate the price of the gift to be $170. Each person has already contributed $10. If they have eight weeks to raise the rest of the money, how much will each child have to ...
Friday, May 13, 2016 by Anonymous

Math
Tina baked a loaf of cinnamon bread and cut it into 15 equal pieces. Four people ate an equal number of pieces left. there are three pieces left. what fraction of the bread to each person eat ?
Thursday, May 12, 2016 by Karina

Math
I need help please. Add the opposite of -13 to the reciprocal of 9
Thursday, May 12, 2016 by Brenda

Math probibility
What is the probability that ma.martin will pick 2 girl names if there are 11 girls and 12 boys in her class??????
Thursday, May 12, 2016 by Helppp

Math
What are the numbers to the median of 38 and mode of 40 minimum of 9 and maximum of 85?
Thursday, May 12, 2016 by Anthony

Math
In how many ways can a team of 5 players and a coach be chosen from 10 players and 5 coaches? How many of these teams will contain Alex, one of the player?
Thursday, May 12, 2016 by Joe

Math
In how many ways can a committee of 12 people, of which 5 must be in the 21−30 age group, 4 must be in the 31−40 age group and 3 must be in the 41−50 age group, be chosen if there are 6 people of each age group?
Thursday, May 12, 2016 by Joe

Math
In a card game player get at the start 2 green cards, 3 blue cards, 4 red cards, and 3 yellow cards. In how many ways can the player get cards at the start if this card game has 7 green, 7 blue, 10 red and 10 yellow cards?
Thursday, May 12, 2016 by Joe

Math
1/2(k-5)=3
Thursday, May 12, 2016 by Marybeth

Math
5(x-1)+-3x+6=9
Thursday, May 12, 2016 by Toya

Math, Algebra
81^3(x+1)=9^2(x-1) Solve this equation by expressing both sides as powers of 3.
Thursday, May 12, 2016 by Anonymous

Math
The sum of two numbers is 15. Three times the second number minus four times the first number equals 4. What are the missing variables? Please show your work.
Thursday, May 12, 2016 by Connie

Math
If I have $135 and I put 3/8 of it away in savings, how much do I have left to spend? I tried doing division, but I got 360 and I can't think of any other equations..
Thursday, May 12, 2016 by Lex

Math, Algebra
81^3(x+1) = 9^2(x-1) Solve this equation by expressing both sides as powers of 9.
Thursday, May 12, 2016 by Anonymous

Math, Algebra
81^3(x+1)=9^2(x-1) Solve this equation by expressing both sides as powers of 3.
Thursday, May 12, 2016 by Anonymous

math
in a box plot the first quartile is x the median is y and the third quartile is 70. the median separates the box into 2 quartiles each with the same range
Thursday, May 12, 2016 by olivia

Math
7+7=
Thursday, May 12, 2016 by Varsan

Math
name two fractions that you know are equivalent to 1/2
Thursday, May 12, 2016 by Hailey

Math
John has travel 630 miles. The car does 27miles per gallon. The car has a 9 gallon tank. How many times will he have to fill up.
Thursday, May 12, 2016 by Joe

Math
1) If the Sin(70 degrees)= Cos(A), what must A be? 2) Why is the Sine of 10 degrees the same as the Cosine of 80 degrees?
Thursday, May 12, 2016 by Sammy

Math
a cake is cut into 12 equal pieces. there are 7 children and each child eats 1/3 of a piece
Thursday, May 12, 2016 by Anonymous

Math
write the function 6^x-y=4 in explicit form. Please i need an answer fast. thank you
Thursday, May 12, 2016 by teta

math
A ball is dropped from a height of 256 ft. With each bounce, the ball reaches a height that is half the height of the previous bounce. After which bounce will the ball rebound to a maximum height of 1 ft?
Thursday, May 12, 2016 by Anonymous

Math
w^-2 ____ w^0 or w^-2/w0 Simplify. Answer as a power with a positive exponent
Thursday, May 12, 2016 by Xavier Norby

math
John leaves on a 20-mile bike trip. He rides at a speed of 8 mile per hour. Ashley leaves 1 hour later. Both bikers take the same route. Ashley rides at a speed of 6 miles per hour. How many later than John will Ashley complete the trip?
Thursday, May 12, 2016 by Anonymous

math
A credit card company charges 7% simple interest. What is the total interest on a $1,900 loan at the end of two years?
Thursday, May 12, 2016 by Anonymous

math
write the function x-y=4 in explicit form. Please i need a fast answer
Thursday, May 12, 2016 by Shuki

Math
The serving size babies need to be fed is 2 fl. oz. Knowing that I can feed the baby 8 times a day & 3oz. of formula each time, How much formula will I be using daily? Answer: 24 oz. How much formula will I be using... weekly? Monthly?
Thursday, May 12, 2016 by Tae

math
a plat form and a building are on the same horizontal plane , the angle of depression of the bottom of the building from the top A of the platform is 39 degree. the angle of elevation of the top D of the building from the top of the platform is 56 degree. given that the ...
Thursday, May 12, 2016 by chris

Math/Precal
There are 12 students to be seated in a row of 12 chairs, paul and martha have broken up and will not sit together. How many different seating arrangements are possible?
Thursday, May 12, 2016 by Carli

Math
How many 4 digit numbers are greater then 7538 can be made using the digits, 0,3,5,7,8,9 without repetition?
Thursday, May 12, 2016 by shawn

Math
A student created a 6 character computer password, the password strts with 4 digits, the first of which is he number 3, followed by 2 letters, the firsr of which is a consonant. How many different passwords are possible if repetition is allowed? I know its 1x10x10x10x21x26 But...
Thursday, May 12, 2016 by Babs

math
toffees are sold in packs of 8. Tony buys 4 packs. He eats 25 toffees. How many toffees are left?
Thursday, May 12, 2016 by Anonymous

math
rajeev, who is sixteen years old, is four times as old as his sister. How old will Rony be when he is twice as old as his sister?
Thursday, May 12, 2016 by raju

Math
In mr tarkanian history class each student chooses two of the topics listed in the chart above for their papers. how many different pairs can juliana choose?
Thursday, May 12, 2016 by HELP!!

Math riddle
Why does the us need a new building riddle plz help
Thursday, May 12, 2016 by Elijah mann

Math
What is the surface area of the given figure? Side: 26 Side: 28 Height: 10 Width: 36 a) 2,564cm^2 b) 2,276cm^2 c) 2,184cm^2 d)1,160cm^2
Thursday, May 12, 2016 by Val

Math
Find the inverse function of f(x)=(x+4)/(2x-5) and then verify your result using: f(f^-1(x))=x and f^-1(f(x))=x. Please an answer fast
Thursday, May 12, 2016 by Shuki

Math
How to draw tow different parallelograms that each have an area of 4 square inches
Thursday, May 12, 2016 by Marcus

Math
Assume that y varies directly with x, then solve. If y=-18 when x=6,find x when y=6
Thursday, May 12, 2016 by Chey

6th grade math
Starlight tree farm sells Douglas firs and noble firs. One December they sold 139 more Douglas first than noble first. The total number of trees sold was 377. Which equation could be used to solve for n the number of noble of threes sold? A. N – 139 = 377 B. N + 139 = 377...
Thursday, May 12, 2016 by Lily Longoria

Math
A jug of water is 1/2 full. If 3 children equally share the water, what fraction of the full jug does each child get? A.6 B.1/6 C.2/3 D.3/2
Thursday, May 12, 2016 by Summer

6th grade math
Suppose you are driving to visit a friend in another state. You are driving 60 miles per hour. You must drive 480 miles total. If you have already driven 120 miles, how long will it take you to reach your destination? If you have already driven 120 miles, how long will it take...
Thursday, May 12, 2016 by Lily Longoria

math
HOW should i start this im confused. The theater arts committee estimated that it would sell 200 tickets for its upcoming play. The committee actually sold 224 tickets. What was the percent error in the committee’s estimate? Round your answer to the nearest tenth of a ...
Thursday, May 12, 2016 by anna

math
Laketown had 215 inches of snowfall last year, but only 155 inches this year. What was the percent decrease in snowfall for Laketown to the nearest percent? A. 28% B. 39% C. 72% D. 139%
Thursday, May 12, 2016 by anna

Math
As part of their job, meteorologists make weather predictions from data. How accurate are their predictions? What are other scenarios in which you would use data to make a prediction? How would you defend your prediction using data? I really don't get this question I'...
Thursday, May 12, 2016 by Gabby (PleaseHelp)

Math!!
Find the lateral area for the square pyramid. Height: 22 Base: 8 Side: 8 I know the answer, I just want someone to show me how to actually calculate it to find the answer. Thanks :)
Thursday, May 12, 2016 by Val

6th grade math
Write an inequality to represent the equation: The temperature stayed above - 15 degrees.
Thursday, May 12, 2016 by Lily Longoria

Math/Precal
Given the word OCTOBER, how many different 3 letter words can be created??
Thursday, May 12, 2016 by Cierra

Math
A student created a 6 character computer password, the password strts with 4 digits, the first of which is he number 3, followed by 2 letters, the firsr of which is a consonant. How many different passwords are possible if repetition is allowed?
Thursday, May 12, 2016 by Babs

Math
How do i solve algebraically for n. 9n=3(nP2)
Thursday, May 12, 2016 by Harley

6th grade math
Complete the function table. Then write a rule for the function table. Input Output -3 [missing] -2 -4 -1 [missing] 0 [missing] 1 -1 Please show step by step and explain. Thank you!
Thursday, May 12, 2016 by Lily Longoria

Math
A rectangular prism is 18 inches tall and has a square base whose length is 9 inches. Oliver plans to cover the top and bottom of the rectangular prism with material A, which costs 2 cents per square inch. He then plans to cover the other four faces of the prism with material ...
Thursday, May 12, 2016 by Steve

math
9. solve |4x + 3| = 9 + 2x and check for extraneous solutions. the first answer I got was: |4x +3| = 9 + 2x |4x| = 6 + 2x 2x = 6 x = 3 can someone help me find the other answer? thank you!
Thursday, May 12, 2016 by emily

Math
In a geography class 9 students are scheduled to give their presentations tody, one student must leave early so he will present first, how many different ways can you schedule all of todays presentations?
Thursday, May 12, 2016 by Clark

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

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