Sunday
March 29, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Post a New Question | Current Questions

Math
Express the function in the form f o g. (Use non-identity functions for f and g.) G(x)= cube root of (x/(9+x)) {f(x),g(x)}=?
Wednesday, January 28, 2015 at 9:54pm

Math
Find f o g o h f(x)= sqrt(x-5), g(x)=x^2, h(x)=x^3+6
Wednesday, January 28, 2015 at 9:51pm

math
After Khalil gave Benjamin 3/5 of the rocks in his collection, Benjamin had 70 rocks. If Benjamin had 25 rocks in the beginning, how many rocks did Khalil have in the beginning?
Wednesday, January 28, 2015 at 9:30pm

Math
Lela and pepe are playing a video game. The game scores are a ratio of 1:5. Lela completes a quest and earns 48 points. Their score ratio is now 5:9. What is pepe's score?
Wednesday, January 28, 2015 at 9:22pm

Math
What is 4+ 1000000.
Wednesday, January 28, 2015 at 9:18pm

Math
A variable star is one whose brightness alternately increases and decreases. For one such star, the time between periods of maximum brightness is 5.6 days, the average brightness (or magnitude) of the star is 5.5, and its brightness varies by ±0.30 magnitude. Find a ...
Wednesday, January 28, 2015 at 9:16pm

math
explain the error Janine tells her friend that ordered pairs have an x coordinate of 0 lie on the x axis. She uses the origin as an example. Describe Janine's error. Use a counterexample to explain why Janine statement is false.
Wednesday, January 28, 2015 at 9:04pm

Math
X-Y=5 X-Y=11
Wednesday, January 28, 2015 at 8:54pm

math
A roll of ribbon contains 92 inches of ribbon. If you need strips of ribbon 4/5 inches long, how many strips could you cut from this roll?
Wednesday, January 28, 2015 at 8:52pm

math
You are paid $40 an hour to wash windows. If you have worked for 4 4/5 hour, how much money have you earned?
Wednesday, January 28, 2015 at 8:50pm

Math
Five sixth plus one third
Wednesday, January 28, 2015 at 8:02pm

Math
Fred, Burt, Conrad, Otto, and Hugh run a race. All the runners can be taken to have the same level of ability, so it may be assumed that all of the possible orderings of the five runners are equally likely. Express your answers to the questions to two decimals. What is the ...
Wednesday, January 28, 2015 at 7:52pm

math
If Will gives Molly $9, he will have the same amount of money as her. If Molly gives Will $9, the ratio of the money she has to the money Will has will be 1 : 2. How much money does Will have in the beginning?
Wednesday, January 28, 2015 at 7:47pm

Math
Sam painted a wall in his. On Monday, he painted half of the wall. He painted 2/3 of the other half on Tuesday, and finished painting the wall o Wednesday. How much of the wall did Sam paint on Wednesday?
Wednesday, January 28, 2015 at 7:43pm

math
Adrian jogs 3/4 mile each morning. How many days will it take him to jog 3 miles?
Wednesday, January 28, 2015 at 7:30pm

math, algebra
If Will gives Molly $9 dollars he will have the same amount of money as her. If Molly give Will $9, the ratio of money she has to the money will has will be 1:2. How much money does will have in the beginning? Can you give me an explanation of each step, please? I'm having...
Wednesday, January 28, 2015 at 7:28pm

Math
A $1,600.00 principle earns 7% interest, compounded semiannually twice per year. After 33 years, what is the balance in the account. My answer is $112,992.00
Wednesday, January 28, 2015 at 7:26pm

Math.
1. Find the area of the given circle. Round to the nearest tenth. *theres a picture of a circle and the radius is 3.5* A. 22.0 cm *squared* B.38.5 cm *squared* C. 11.0 cm *squared* D. 42.8 cm *squared* 2.Find the circumference of the given circle. Round to the nearest tenth. *...
Wednesday, January 28, 2015 at 7:15pm

Math
Jose said all of the multiples of 8 are also multiples of 2? Manila said that all the multiples of 8 are also of 4. Who is correct?
Wednesday, January 28, 2015 at 6:59pm

Math
Find the product 8 1/3 x 3/5 in simplest form Find the product 5 1/2 x 3 1/3 in simplest form Use distributive property to find the product 4 2/5 x 10
Wednesday, January 28, 2015 at 6:44pm

math
Franklin Furniture Company sells chairs for $110 each and tables for $322 each. Last month the company sold 65 items for a total of $12,450. How many chairs and how many tables did they sell?
Wednesday, January 28, 2015 at 6:39pm

math
Jessica sold 210 magazine subscriptions during a fundraiser at her school. The subscriptions either cost $23 per year or $45 for two years. Her sales totaled $6,150. How many one-year and how many two-year subscriptions did Jessica sell?
Wednesday, January 28, 2015 at 6:35pm

math
The Downtown Theater group sold 650 tickets to its latest production. They sold only regular seats and box seats. Regular seats cost $12 each and box seats cost $18 each. Altogether, the theater collected $8,550 in ticket sales. How many regular seats and how many box seats ...
Wednesday, January 28, 2015 at 6:31pm

Math
In triangle ABC, the degree measure of angle A is 20 degree greater than the degree measure of angle B. Angle C is a right angle. What is the measure of angle B? Is it 70 degrees. 90-20=70
Wednesday, January 28, 2015 at 6:30pm

Math
A bamboo plant grew 3 feet and 6 inches in 3 days. If the plant grew the same amount each day. how many inches did plant grow each? 12 x3=36 36+6=42 42*3=126 126 inches
Wednesday, January 28, 2015 at 6:01pm

math
limit of x approaches -3. (2x^2 + 4x + 1)
Wednesday, January 28, 2015 at 5:50pm

math
9 feet equal how many inches
Wednesday, January 28, 2015 at 5:30pm

math
For every cup of seltzer you use, how much orange juice do you use?
Wednesday, January 28, 2015 at 5:20pm

Math
You are buying a fence to enclose a garden that has an area of 360 square feet. x + 9 The bottom of garden x side of garden a) What is the width of the area to be enclosed? Answer in units of ft b) How much fencing do you need? Answer in units of ft
Wednesday, January 28, 2015 at 5:18pm

math
1. How many milligrams (mg) are equal to 1000 micrograms (mcg)? 2. How many pounds (lb) are in one kilogram (kg)? 3. How many milliliters (mL) are in 1/2 of a household measuring cup? 4. Which of the following is an example of a correct conversion factor? a 50 ml/1oz b 1 cup/...
Wednesday, January 28, 2015 at 5:08pm

math
how many pounds are in one kilogram round to nearest tenth
Wednesday, January 28, 2015 at 5:05pm

Math
Monica paid sales tax of $1.50 when she bought a new bike helmet. If the sales tax was 5% how much did the store charge for the helmet before tax?
Wednesday, January 28, 2015 at 4:45pm

help math algebra
How do you find the GCF (greatest common factor) of -m^8n^4 and 3m^6n?
Wednesday, January 28, 2015 at 4:33pm

math-algebra
How do you find the GCF (greatest common factor) of -m^8n^4 and 3m^6n?
Wednesday, January 28, 2015 at 4:03pm

Math
In the equation c=9h, identify which variable is the independent variable and which is the dependent variable.
Wednesday, January 28, 2015 at 4:00pm

Math
Find the exact value: cos(pi/16)cos(3pi/16)-sin(pi/16)sin(3pi/​16)
Wednesday, January 28, 2015 at 3:58pm

Math 20-1
The length of a rectangle is 5 cm more than its width. What are the possible dimensions of the rectangle if the area must be at least 84 cm^2? (2 marks)
Wednesday, January 28, 2015 at 3:55pm

Math 20-1
What is the solution for 2x^2-7x > always greater than -3 ? (2 marks) (Show your work)
Wednesday, January 28, 2015 at 3:55pm

Math
The product of 0.15 an an unknown factor is 1.38. What is the unknown factor?
Wednesday, January 28, 2015 at 3:50pm

math
Mr. Smith’s first period class had an average of 90% on the first test, and his 4th period class had an average of 82%. If there were 30 people in his first class, and 22 in his second, what is the average score of someone in his class?
Wednesday, January 28, 2015 at 3:49pm

math
AB = 8 cm, AC = 6 cm, AD = 7 cm, CD = 2.82 and CAB =50°. Find the length BC, angle ABC, angle CAD , area of triangle ACD.
Wednesday, January 28, 2015 at 1:46pm

math
11>2y-15
Wednesday, January 28, 2015 at 12:46pm

math
A circle has an area of 154cm2 what is the diameter of the circle
Wednesday, January 28, 2015 at 12:04pm

Math
A hardware store will deliver up to 6 items for a $25 delivery charge. There is a charge of $4 for each additional item to be delivered. Write a piecewise function for the cost of having x items delivered. I understand the answer is 25 for x <= 6 and 4x + 1 for x > 6. ...
Wednesday, January 28, 2015 at 11:58am

MATH
Two Trains are leaving Kansas City at noon. One is traveling northeast at 38MPH. The other is heading west at 46KPH. At what time in Los Angeles will the trains be 214 miles apart?
Wednesday, January 28, 2015 at 11:41am

math
19 > - n/5 + 9 3x + 4 < 19
Wednesday, January 28, 2015 at 11:27am

Math
What is -a^-2 if a equals -5
Wednesday, January 28, 2015 at 11:19am

Math, trignometry,Algebra
The curve y=sin(x)+pi/2 will experience which transformation from the function y=sin(x) 1)A shift pi/2units right 2)none of the above 3)A shift pi/2 united down 4)A shift pi/2 units up 5)A shift pi/2 units left
Wednesday, January 28, 2015 at 11:05am

math
A jug of milk holds 4 quarts. How many liters of milf does the jug hold. Round to the nearest hundredth of a liter. 1L= 1.06 qt A) 0.27 L B) 3.77 L C) 4.24 L D)5.06 L not sure on this one Garrett is 64 in tall. How many centimeters tall is he? Round your answer to the nearest ...
Wednesday, January 28, 2015 at 10:46am

Math
What decimal represents the probability that the spinner will stop on an orange section?
Wednesday, January 28, 2015 at 10:16am

Math
Find the equation of the line, with the given properties, in slope-intercept form. Slope=−4, through (​722;7,7) The equation of the line is . 
Wednesday, January 28, 2015 at 10:08am

Math
Hello! Can you check my answers for these 4 worksheet questions? Thank you in advance (: 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7), (14, 11), (14, 15), (8...
Wednesday, January 28, 2015 at 10:01am

math
5+c/9=31 9-n/5=19
Wednesday, January 28, 2015 at 9:53am

math
27=-2y+15
Wednesday, January 28, 2015 at 9:48am

Math
The area, A cm3 , of a circle increases at a constant rate of 2 cm2 ´ s -1 . If the initial area of A is 1 cm2 , show that the radius of the circle at time t is given by r=sqrt( 2t+1/ pi) sqrt on both denominator and numerator
Wednesday, January 28, 2015 at 8:56am

Math
The volume, V cm3 , of a cone height h is (pi)(h^3)/ 12. If h increases at a constant rate of 0.2 cm/sec and the initial height is 2 cm, express V in terms of t and find the rate of change of V at time t.
Wednesday, January 28, 2015 at 8:53am

Math
The volume, V cm3 , of a cube at time t seconds is given by V=(4 + 1/3t)^3 find the rate at which its volume is increasing at the instant when t = 2.
Wednesday, January 28, 2015 at 8:52am

Math
The amount of water,V cm3 , in a leaking tank at time t seconds is given by V = (15-t)^3 for 0<=t<=15 Find the rate at which the water leaves the tank when t = 4.
Wednesday, January 28, 2015 at 8:50am

Math
The radius, r cm , of a spherical balloon at a time t seconds is given by r = 3 + 2 / (1+t) What is the initial radius? Find the rate of change of r (w.r.t.t) when t=3
Wednesday, January 28, 2015 at 8:49am

Math
The length, l mm of an elastic string at time t seconds is given by l=t^3 / 3 - 4t +10 Find the instants (that is, the value of t ) when a) The length is increasing at a rate of 5 mm/Sec b) The length is decreasing at a rate of 4 mm/Sec
Wednesday, January 28, 2015 at 8:47am

Math
The radius r (cm) of a circle at time t seconds is given by r = 9t - t^3 . At each of the following instants, find the rate of change of the radius (w.r.t.'t') and state whether the radius is increasing or decreasing at these instants. a) t =1 b) t =2 c) t =2.5
Wednesday, January 28, 2015 at 8:44am

Math
A rectangle has sides of length x cm and 2x - 4cm and the length x cm at time t seconds is given by x = 2 + 3t, (t>=0) . Show that the area, A cm^2 , the rectangle, in terms of t is A =12t + 18t^2 . Hence find the rate of change of the area at the instant when t = 2.
Wednesday, January 28, 2015 at 8:40am

Math
The radius, r cm, of a circle at time t seconds is given by r = 2t 2 + 1. Express its area, A cm2 , in terms of t and find the rate of change of the area at the instant when t=2. (Leave your answer in terms of p )
Wednesday, January 28, 2015 at 8:38am

Math
Water is poured steadily into an empty container. If the volume of water in the container after 5 seconds is 30 cm3 , find a) The rate of change of volume b) The volume of water after 12 seconds
Wednesday, January 28, 2015 at 8:37am

math
-32 is < or = to 24 - 2f 5+c/9 is > or = to -31
Wednesday, January 28, 2015 at 7:40am

Math 6 grade
If you need to find the percent of a number, explain how you can predict whether the part will be less than, greater than, or equal to the number. HELP PLEASE
Wednesday, January 28, 2015 at 7:06am

math
Prove the identity (sinx+cosx)^2 = 1+sin2x Thank you
Wednesday, January 28, 2015 at 3:00am

math
Bronze is an alloy or mixture of the metals copper and tin. The properties of bronze depends on the percentage of copper in the mix. A chemist decides to study the properties of a given alloy of bronze as the proportion of copper is varied. She starts with 7 kg of bronze that ...
Wednesday, January 28, 2015 at 1:36am

math
B . . . . . . . . . . . . . . C A Triangle ABC is right angled at A. The area of triangle is = ½bh. The area of the triangle is 3/2x^2 + 10x + 16cm^2 where x is a positive integer. The area of the triangle ABC can be written in the form 1/2 (x+a)(bx + c) . The value of ...
Wednesday, January 28, 2015 at 12:55am

math
The scale on a map i 1cm to 4km What does 4cm on the map represent ?
Wednesday, January 28, 2015 at 12:51am

math
An open box is to be made from a flat square piece of material 20 inches in length and width by cutting equal squares of length x from the corners and folding up the sides. (a) Write the volume V of the box as a function of x. Leave it as a product of factors; you do not have...
Wednesday, January 28, 2015 at 12:33am

Math. Just checking
Just making sure because im doing h.w over scientific notations and I know how to do them.. I'm just checking if I'm right.. in scientific notations the number has to be between 1 and 10 right?
Wednesday, January 28, 2015 at 12:21am

Math
1. is line "L" parallel to line "M"? *picture of a transversal.. lines L and M don't touch and one line crosses through line L and M to create a transversal. angles 124 and 118 are on the bottom left side of the transversal* I tried my best to explain ...
Tuesday, January 27, 2015 at 11:33pm

math
Karyn cuts a length of ribbon into 4 equal pieces, each 1 1/4 feet long. How long was the ribbon?
Tuesday, January 27, 2015 at 11:17pm

Math
find the sum of the interior angles of a nonagon. I know a nonagon has 9 sides.. A. 140 degrees B. 1,620 degrees C. 1,260 degrees D. 1,450 degrees If the question is asking for each interior angle then I think the answers A but if it's asking for the sum of ALL the ...
Tuesday, January 27, 2015 at 10:44pm

Math
If you need to find the percent of a number, explain how you can predict whether the part will be less than, greater than, or equal to the number.
Tuesday, January 27, 2015 at 10:30pm

math
Barb is making a bead necklace. She strings 1 white bead, then 3 blue beads, then 1 white bead, and so on. Write the numbers for the first eight beads that are white. What is the rule for the pattern?
Tuesday, January 27, 2015 at 9:57pm

Math
The average size 8 shoe is approximately 8 1/2 inches plus or minus a quarter of an inch . Write and solve an absolute value inequality that shows the range of possible lengths of a person'a foot that would wear a size 8.
Tuesday, January 27, 2015 at 9:46pm

math
Two coworkers picked up some writing instruments at the office supply store. Shane selected 3boxes of pencils and 1box of pens, paying $8. Terrell spent $6 on 1box of pencils and 1box of pens. What's the equation for shanes total cost? Equation for Terrell total cost? Thanks
Tuesday, January 27, 2015 at 9:44pm

Math
Number of packages of red peppers to number of packages of green packages is ratio of 8:13. Peppers are sold in 2-pound packages. What is the least possible weight of red peppers in bin?
Tuesday, January 27, 2015 at 9:44pm

Math
How many feet across is a circular playground that has a fence
Tuesday, January 27, 2015 at 9:43pm

Math
Ratio of tickets Mark to Julia is 4:3. Julia has 36 tickets. How many tickets did they have together?
Tuesday, January 27, 2015 at 9:40pm

math 4th grade
llene is making smoothies. The recipe calls for1 1/4 cups of strawberries. How many cups of strawberries, written as a fraction greater than one, are used in the recipe?
Tuesday, January 27, 2015 at 9:23pm

Math
Hector gas tank was 3/4 full. What percent was emdpty
Tuesday, January 27, 2015 at 9:07pm

Math
A piece of wire 27/32 inches in length is cut into 3 equal pieces . How long is each piece 27/32 , 3/1 =81/32 =27 Is this right
Tuesday, January 27, 2015 at 8:59pm

Math
Alana spent $21 of her $300 paycheck on a gift. What percent of her paycheck was spent on the gift?
Tuesday, January 27, 2015 at 8:45pm

math
6y-15+8=2y 75=m/3+10 10x-16=14
Tuesday, January 27, 2015 at 8:39pm

math
3x + 4 < 19 5 +c/9(greater than/equal)-31
Tuesday, January 27, 2015 at 8:31pm

Calculus II (Math)
integral of 5e^(-0.7x)
Tuesday, January 27, 2015 at 8:28pm

Math
Of the coins in Tricia's bank, 5/7 are quarters. If Tricia has 95 quarters in her bank, how many coins does she have in all. Is this correct? 5/7*x = 95 (7/5)(5/7)*x = 95 x= 95*7/5 95x7 = 665 665/5=133 x=133 Thanks from a Grandma helping w/4th grade math
Tuesday, January 27, 2015 at 7:46pm

math
A store has 300 televisions on order and 80% are high definition. How many televisions on order are high definition?
Tuesday, January 27, 2015 at 7:44pm

math
Mindi planted beans in 4/10 of her garden. What fraction of the garden has beans or peas?
Tuesday, January 27, 2015 at 7:42pm

math
andrew read 24 pages of a book on Monday. He read 5/12 of the book on Monday and completed the remaining 1/4 on Tuesday. How many pages are in the book?
Tuesday, January 27, 2015 at 7:31pm

Math
The area of a parallelogram is 84 cm² the base of the figure is 12 cm what is the height?
Tuesday, January 27, 2015 at 7:18pm

Math
Will I use the distance formula for this problem. A airplane traveling at 390 km/hr in still air encounters a 65 km/hr headwind. How long will it take the plane to travel 725 km into the wind? 390=r*65
Tuesday, January 27, 2015 at 7:08pm

Math
Directions: Find the Location on Unit Circle, Period & General Solution for this problem>>>>>>> sin^2x=3cos^2x What I have so far: sin^2x=3cos^2 sin^2x/cos^2=3 tan^2x=3 tanx=+and- sqrt3
Tuesday, January 27, 2015 at 6:09pm

Math
The average size 8 shoe is approximately 8 1/2 inches plus or minus a quarter of an inch . Write and solve an absolute value inequality that shows the range of possible lengths of a person'a foot that would wear a size 8.
Tuesday, January 27, 2015 at 6:06pm

Math
At a parade 1/4 of the participants have red hair, 1/6 of them have brown hair, and the rest of the participants have black hair. What fraction of the participants have black hair?
Tuesday, January 27, 2015 at 6:02pm

Math
Madison buys 2 3/5 pounds of meat. Her neighbor buys 3/4 pound more meat than Madison. How many pounds of meat do they buy altogether?
Tuesday, January 27, 2015 at 5:57pm

Math
Leena bakes a loaf of bread. She eats 1/8 loaf of bread and give 1/6 of it each of her 3 friends. What fraction of the loaf of bread is left?
Tuesday, January 27, 2015 at 5:56pm

Pages: <<Prev | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | Next>>

Post a New Question | Current Questions

Members