Monday
May 25, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
Sarah is lining a square tray with 1 inch square tiles. The side length of the tray is 9 inches. How many tiles does Sarah need?
Tuesday, March 31, 2015 at 8:10pm

MATH
David took a survey of 12 people to find out what their favorite animal is. Of those, ⅓ of the people said they liked dogs best. How can you find out him many people liked dogs best?
Tuesday, March 31, 2015 at 8:08pm

MATH
I'm sure what if this is the right answer that the question is looking for. since my eng. not that good i have hard time understanding. Please help me. Question: write a situation that can be modeled by the following linear system. Explain what each variable means, then ...
Tuesday, March 31, 2015 at 7:59pm

Math
Between 6 A.M and 10 A.M the temperature rose by 5F. Between 10 A.M and 2 P.M the temperature rose by 6F. Between 2 P.M and 6 P.M the temperature rose by 0C. Would you be able to tell how much the temperature rose since 6 A.M? Why or why not?
Tuesday, March 31, 2015 at 7:57pm

Math
A bathroom has a length of 10 feet and a width of 9 feet.Kade wants to put down tiles on the floor that are each 1 square foot.Then he will put a baseboard along the edges where the walls meet the floor.How many tiles does Kade need?How much baseboard does he need?
Tuesday, March 31, 2015 at 7:44pm

math - linear equation
How do I write a system of equations that is linear and graph? Thanks
Tuesday, March 31, 2015 at 6:19pm

Math
Lamar wants to slice a 35-ounce tomato and a 28-ounce tomato into pieces of the same weight. He finds the greatest common factor of the tomato weights to determine the weight of each piece. What is the greatest common factor of 35 and 28? Show your work. Use your answer to ...
Tuesday, March 31, 2015 at 6:14pm

Math
if a recipe of 2 dozen cookies calls for 3 teaspoons of vanilla how much vanillia will i need for 50 cookies ? 7.3 1.5 teaspoon vanilla= one dozen x 4 dozens = 2.00 missing cookies. 12.5 x 4 = 50 .5x4= 2.00 divided by 1.5 = 1.3 +6 (2servings of 3 teaspoons) equals 7.3
Tuesday, March 31, 2015 at 6:09pm

math help
how do i solve for x and y x+y=2 and 3x^2+4xy+y^2=6
Tuesday, March 31, 2015 at 5:18pm

Math
Can mean be found from a histogram? Explain
Tuesday, March 31, 2015 at 4:59pm

Math
4. Which explains why the sequence 81, 3, 1/9,... is arithmetic or geometric? A)The sequence is arithmetic because it decreases by a factor of 1/27 B)The sequence is geometric because it decreases by a factor of 1/27 C)The sequence is arithmetic because it decreases by a ...
Tuesday, March 31, 2015 at 4:21pm

Math
When interest is compounded once a year, the formula for compound interest is A=P(1+r)t in the formula, A represents the amount of money after t years, p represents the principal, and interest rate written as a decimal. If p=$500 r=3% and t=2 What is the amount of compound ...
Tuesday, March 31, 2015 at 4:02pm

Math
1. Write a rule for the sequence. 8, -1, -10, -19 A) Start with 8 and add -9 repeatedly. B) Start with -9 and add 8 repeatedly. C) Start with 8 and add 9 repeatedly. D) Start with 8 and subtract -9 repeatedly.
Tuesday, March 31, 2015 at 3:58pm

Math
Nina wants to buy a bicycle that costs $150.00. She had saved 6% of the total cost of the bike. How much money has Nina saved? How much does Nina have left to save before she can buy her bike?
Tuesday, March 31, 2015 at 3:49pm

math
equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long
Tuesday, March 31, 2015 at 3:38pm

math
Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long
Tuesday, March 31, 2015 at 3:33pm

math
Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long
Tuesday, March 31, 2015 at 3:16pm

Math
2. Given the data 12,39,21,18,24,17,12,25 a what is the outlier in the data? b what is the mean with the outlier? c what is the mean without the outlier A. 12;21;18.4 *** B. 12; 18.4; 21 C. 39; 21; 18.4 D. 39; 18.4; 21
Tuesday, March 31, 2015 at 2:34pm

BUS math
Bari Jay a gown manufacturer received an order for 600 prom dresses from China. Her cost is $35 a gown. If her markup based on selling price is 79%, what is the selling price of each gown? Round to the nearest cent.
Tuesday, March 31, 2015 at 2:03pm

Math
1. What are the mean, median, mode, and range of the data set given the altitude of lakes in feet: -11, -28, -17, -25, -28, -39, -6, and -46? A. Mean = -25, Median = - 26.5, Mode = -28, Range = 40*** B. mean = -25; median = -40; mode = -26.5; range = 28 C. mean = -26.5; median...
Tuesday, March 31, 2015 at 1:51pm

business math
Anny invests $8,500, at 6% interest, compounded quarterly for 12 years?
Tuesday, March 31, 2015 at 1:03pm

math
given that the rectangle above has a perimeter of 34 units, find m<klj. round the answer to the nearest hundredth
Tuesday, March 31, 2015 at 12:58pm

Math
Juanita invests $3,500, at 8% interest, compounded annually for 4 years?
Tuesday, March 31, 2015 at 12:36pm

MATH
716-{(1950/5 of 3)-(4+217/7)}
Tuesday, March 31, 2015 at 10:42am

math help
How do i solve for x (x^2-9)(2x+1)=0
Tuesday, March 31, 2015 at 9:42am

math help
how do prove that this equation has rational roots for all rational values of K 3x^2+kx-k=3x
Tuesday, March 31, 2015 at 9:39am

Math
Point M(4, 3) is translated according to the rule (x, y) (x+2,y-5). What are the coordinates of of M?
Tuesday, March 31, 2015 at 8:46am

Math, statistics
Problem 1: The PDF of exp(X) (6/6 points) Let X be a random variable with PDF fX. Find the PDF of the random variable Y=eX for each of the following cases: For general fX, when y>0, fY(y)= Solution: f_x(ln(y))/y When fX(x) = {1/3,0,if −2<x≤1,otherwise, we ...
Tuesday, March 31, 2015 at 8:34am

7th grade math (probability)- additional questions
Here are additional problems that weren't included in original post from 3/30. 4. There are 5 different color jolly ranchers in a bag - 10 cherry, 15 watermelon, 12 grape, 10 apple, and 8 raspberry. What is probability that you'll choose raspberry? Ans: 8/55 =.1454 = ...
Tuesday, March 31, 2015 at 7:25am

Math
Given an iterated map, ie. x_n+1 = 3* x_n / (x_n +1), how do we find all of its fixed points?
Tuesday, March 31, 2015 at 2:35am

math
square root of (24)(72)
Monday, March 30, 2015 at 11:27pm

5th grade (math)
The grass in Jenna's lawn has not grown in too well. She plans to throw more seed onto her lawn. A 1-lb bag of seed costs $22 and covers 60m square. A 5-lb bag of seed costs$88 and covers 300m square. how much will jenna spend on grass seed for her lawn? pls help!!
Monday, March 30, 2015 at 11:26pm

math
Five friends shared 2 packs of paper equally. What fraction of a pack of paper did each friend get? I think 2/5
Monday, March 30, 2015 at 11:10pm

math
square 0f (24)(72)
Monday, March 30, 2015 at 10:17pm

math
Vanilla Box Company is going to make open-topped boxes out of 17 × 13-inch rectangles of cardboard by cutting squares out of the corners and folding up the sides. What is the largest volume box it can make this way? (Round your answer to one decimal place.)
Monday, March 30, 2015 at 10:14pm

math
The ratio of Maya’s beads to Kayla’s beads was 12:7. After Maya bought another 28 beads and Kayla gave away 3/2 beads, 5/7 of Kayla’s beads were left. a) How many more beads did Maya have than Kayla in the beginning? b) Find the new ratio of Maya’s beads to...
Monday, March 30, 2015 at 10:07pm

math
letitia is making a pizza that needs to cover 36 square inches. give two possible sets of dimensions (length and width) that will give letitia's pizza the desired area. also give the perimeter for each set.
Monday, March 30, 2015 at 9:22pm

5th grade math
Letitia is making a pizza that needs to cover 36 square inches. give two possible sets of dimensions (length and width) that will give Letitia's pizza the desired area. also give the perimeter for each set.
Monday, March 30, 2015 at 9:18pm

math
I am having problems with this problem.In the mythical kingdom of Permutatus, wizards have special 2-digit license plats, The first digit is greater than 6, and the second digit is odd. The two digits cannot be the same, How many different license plates are possible.
Monday, March 30, 2015 at 8:47pm

Math
Find the surface area of the a square pyramid.The A = 3 m and H = 4.5 m?
Monday, March 30, 2015 at 8:43pm

5th grade math
mrs. watterson wants to fence in an area for her dog. she has 72 feet of fencing and wants to use all of it to enclose a space with the greatest possible area. which dimensions will give her a space with the greatest possible area? (1 point) 16 feet by 20 feet 18 feet by 18 ...
Monday, March 30, 2015 at 8:40pm

7th grade math (probability)
I'm not sure how to answer this: 3. THe 7th grade wants to have a back-up representative just in case the first teacher is absent. Based on the same scenario as #2, if a math teacher was chosen to be the 7th grade representative, what is the probablility that the back-up ...
Monday, March 30, 2015 at 8:09pm

Math
What percentage of the total students chose skateboarding? Skateboarding boys=2 girls=1 A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank took you
Monday, March 30, 2015 at 8:08pm

5th grade math
Meg is making ribbons for the country fair. she needs to glue edging around the outside of the circular part of the ribbon shown. about how many centimeters of edging does she need? 5 cm 7 cm 9 cm 28 cm
Monday, March 30, 2015 at 8:06pm

Math
How do I work this out? Corporate bonds issued by Johnson Corporation currently yield 11%. Municipal bonds of equal risk currently yield 6.5%. At what tax rate would an investor be indifferent between these two bonds? My answer is: 6.5%/1-11%=7.3 (7.3)(1- .11)=6.5 However, I ...
Monday, March 30, 2015 at 7:57pm

Math
The demand for a commodity generally decreases as the price is raised. Suppose that the demand for oil (per capita per year) is D(p)=800/p barrels, where p is the price per barrel in dollars. Find the demand when p=55. Estimate the decrease in demand if p rises to 56 and the ...
Monday, March 30, 2015 at 7:55pm

5th grade math
The circumference of a circular trampoline is 44 feet. Estimate the radius of the trampoline
Monday, March 30, 2015 at 7:53pm

Math
Not sure on a reasonable estimate for the weight of a pencil. Out of the choices given I have it narrowed down to 1x10^-2 lbs or 1 x 10^-20 lbs. I know it is not the other 2 choices because they are positive exponents and would be too heavy. Thanks.
Monday, March 30, 2015 at 7:39pm

math
What is the simplest form of the expression below? (4a+2b) + (6a+5b) F. 6a+11b G. 10a+7 H. 10a + 7b J. 17ab i think the answer is either h or j
Monday, March 30, 2015 at 7:09pm

Math
Tyler earns 7$ an hour mowing lawns. Write and solve an inequality that he can use to find at least how many hours he has to work to earn 100$
Monday, March 30, 2015 at 7:08pm

Math
5/6 + 1/12 I want to make sure that i'm doing it correct.
Monday, March 30, 2015 at 7:03pm

math
three more pancakes than his brother ate
Monday, March 30, 2015 at 6:43pm

Middle Math
My math calculator prompted me with this question 6E-7. My answer to this question is 0.00000007
Monday, March 30, 2015 at 6:39pm

math
how can you use a right angle to decide how to name another fraction
Monday, March 30, 2015 at 6:26pm

math
x: -2,-1, 0, 1, 2 ------------------- y: 9, 4,-1,-6,-11 find the function rule. please??
Monday, March 30, 2015 at 6:13pm

math
A gallon of unleaded gasoline weighs about 6 pounds. About how many ounces does ounces does 1 quart of unleaded gasoline weigh?
Monday, March 30, 2015 at 5:34pm

math help
how do solve for x 2.3^x=81-3^x
Monday, March 30, 2015 at 5:22pm

math
An office supply company is shipping a case of wooden pencils to a store. there are 64 boxes of pencils in the case. If each of pencils weighs 2.5 ounces, what is the weight, in pounds, of the case of wooden pencils?
Monday, March 30, 2015 at 5:21pm

Pre Algebra
My math question showed me a scientific notation on the calculator which represents (6E-7). My answer to this question is (-6,000,000) am I correct.
Monday, March 30, 2015 at 5:12pm

math
A male African elephant weighs 7 tons. If a male African lion at the local zoo weighs 1/40 of the weight of the male African elephant, how many pounds does the lion weigh?
Monday, March 30, 2015 at 5:10pm

Math
A retangular prism has a base that measures 9cm by 8cm and a height of 5cm. How many cubes will Joan use to fill the retangular prism?
Monday, March 30, 2015 at 5:07pm

math
A string of decorative lights is 28 feet long. The first light on the string is 16 inches from the plug. If the lights on the string are spaced 4 inches apart, how many lights are there on the string?
Monday, March 30, 2015 at 4:59pm

math
Is a rectangle a square?
Monday, March 30, 2015 at 4:51pm

Math
Write an expression for the total of movie tickets and popcorn for a group of friends attending a movie. Movie tickets cost $8.50 each and each friend will have a box of popcorn that cost $2.25.
Monday, March 30, 2015 at 4:38pm

Math
Determine the equation of a parabola with x-intercepts +- 4 and passing through (3,6)
Monday, March 30, 2015 at 4:20pm

Math
Richie says the least common multiple of a pair of prime numbers is the product of the 2 numbers. Is he right or wrong? Explain your reasoning.
Monday, March 30, 2015 at 4:14pm

Math
if one container of applesauce contains 3 3/4 ounces, how much applesauce is in a 6-pack of applesauce
Monday, March 30, 2015 at 4:12pm

math
^3ã54^5
Monday, March 30, 2015 at 4:09pm

math
For what values of k does the line y=x + k pass through the circle defined by x^2 + y^2 = 25 at: 2 points, 1 point, and 0 points i found the discriminant which is 100 - 4k^2 but im not sure how to find the values for each point
Monday, March 30, 2015 at 3:49pm

Math
the number cube shown is rolled and the spinner shown is spun. find P(5 and blue). A. 4/6 B. 1/24*** C. 1/9 D. 1/16 *Btw the cube (or dice) has 6 sides and the numbers 1-6 and the spinner has 4 sides aka squares.. 2 yellow sqaures, 1 blue, and 1 green) The question is asking P...
Monday, March 30, 2015 at 3:30pm

Math
Use logarithmic differentiation to find the derivative of y: y=x^(e^x)
Monday, March 30, 2015 at 1:00pm

math
PQRS IS A QUAD. IN WHICH DIAGONALS PR AND QS INTERSECT AT O.PROVE THAT PQ+QR+RS+SP>2(PR+QS).
Monday, March 30, 2015 at 12:39pm

math help
thanks which term of the pattern is equal to 2549
Monday, March 30, 2015 at 12:11pm

math help
pattern 1,5,11,19 1.how do i find the next two patterns 2.how do i calculate the n^th term of the pattern
Monday, March 30, 2015 at 10:32am

math 7
Describe an example of an event that has a probability of zero and an event that has a probability of 100
Monday, March 30, 2015 at 10:11am

math help
can u solve x and y simalteneously for me thanks in advance x-3+2y=0 2y^2+3x^2+4xy=9
Monday, March 30, 2015 at 8:36am

Math Help
Hi! I need help with this question. Thanks! Directions: To solve these problems, you need to find the inverses of these 2x2 matrices. a.) D= [-3 -6 6 12] b.) C= [2 1 7 3]
Monday, March 30, 2015 at 7:59am

Math
In a deck of 52 cards, 3 cards are chosen. What is the probability that all three card are picture cards? (king, queen, jack) By the way, we are learning combinations and permutations. Help would be greatly appreciated!
Monday, March 30, 2015 at 12:58am

Math
3 animals need to be chosen. There are 3 tigers, 6 bears, and 4 dogs. Find the probability that: a) 1 tiger, 1 bear, and 1 dog are chosen b) 3 bears are chosen c) no tigers are chosen by the way, we are learning combinations and permutations. Thank you for your help!!!
Monday, March 30, 2015 at 12:57am

Math
There is a test with 10 questions. Each question has a choice of three answers, but only one answer is correct. How many ways are there to fill out the test? By the way, we are learning combinations and permutations
Monday, March 30, 2015 at 12:54am

Math
there are 3 sizes of pizza, 4 types of crust, and 4 types of toppings. how many one topping pizzas can be made?
Monday, March 30, 2015 at 12:16am

COMMON CORE MATH
What does method mean in math?
Sunday, March 29, 2015 at 11:02pm

basic math
I have 14 minutes left to complete this test. use the net decima equivilant to find thr net price. List price is $700 and the trade discount rate ie 10/8/6
Sunday, March 29, 2015 at 9:21pm

Math
If the flight of a rocket can be modelled by the function h=-4.9t^2+49t+2.5. Where h is height in meters and t is time in seconds. How long was the rocket above 100m? I know that you have to find the two times when the rocket hits 100m. And then subtract them. But how do you ...
Sunday, March 29, 2015 at 9:20pm

basic math
find the total debt to total assetss for the bakery for 2012. totl liabilities-5342 total assests-8754 owners capital-3412 total liabilities and owners equity-8754
Sunday, March 29, 2015 at 8:51pm

basic math
use the appropriate form of the percentage formula. findP if R=66and 2 thirds and B=150. Sorry, can't state as a fraction
Sunday, March 29, 2015 at 8:39pm

Math
The rainbow bridge of Utah is a natural arch that is approximately parabolic in shape. The arch is about 88m high. It is 84m across the base. Determine a quadratic relation, in standard form, that models the shape of the arch My answer was y=-22/441x^2+88 But the textbook said...
Sunday, March 29, 2015 at 8:32pm

math
a number increased from 460 to 621. find the percent of increase
Sunday, March 29, 2015 at 8:24pm

math
last week at a festival, a man sold 3 times as many tie-dyed shirts as silk-screened shirts. He sold 148 shirts altoether. How many tie-dyed shirts did he sell?
Sunday, March 29, 2015 at 8:18pm

math
the fany budget is: food $450, housing $300, insurance $122, personal $80, misc. $80, clothing $160, savings $150, transportation $178. what percent of take home pay is spent for education if education, savings, and misc. funds are used for education?
Sunday, March 29, 2015 at 8:08pm

math
solve for the unknown equation. 7A=14
Sunday, March 29, 2015 at 8:02pm

math
Ruth's brother just went away to college this fall and had to buy his own laundry soap and fabric softener.The laundry soap was twice the cost of the fabric softener. the total of the two items was $7.47. how much did the laundry soap and the fabric softener cost ...
Sunday, March 29, 2015 at 7:55pm

math
a large piece of cadboard, 5cm by 8cm to be made by cutting out sqaures in each corner. find dimensions that will maximize the volume? vol= (8-2w)(5-2w) (w) answer= 1cm and 10/3 cm is this correct?
Sunday, March 29, 2015 at 7:52pm

Math
Fifteen smart cars were randomly selected and the highway mileage of each was noted. The analysis yielded a mean of 47 miles per gallon and a standard deviation of 5 miles per galon. Which of the following would represent a 90% confidence interval for the average highway ...
Sunday, March 29, 2015 at 7:34pm

Math
does the series (1-(2/k))^k from k=1 to infinity converge?
Sunday, March 29, 2015 at 7:28pm

basic math
find the net price of a computer that lists for$220 if a discount rate of 10% is offered
Sunday, March 29, 2015 at 7:18pm

math
The ratio of Maya’s beads to Kayla’s beads was 12:7. After Maya bought another 28 beads and Kayla gave away 32 beads, 57of Kayla’s beads were left. a) How many more beads did Maya have than Kayla in the beginning? b) Find the new ratio of Maya’s beads to ...
Sunday, March 29, 2015 at 7:09pm

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?
Sunday, March 29, 2015 at 7:08pm

Math
A new fence is constructed on three sides of a housing block with area 240 m2. The fourth side facing the road is left open. If 52 m of fencing is used, what are the dimensions of the block?
Sunday, March 29, 2015 at 6:53pm

physics
Part 2: Complete the following math problems by using the Law of Momentum Conservation. Formulas: i. Momentum = (mass) * (velocity) ii. Impulse = (Applied force) * (time) and Impulse = Change in Momentum iii. Applied Force = (Change in Momentum) / (time) iv. For multiple ...
Sunday, March 29, 2015 at 6:27pm

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