Monday

May 25, 2015

May 25, 2015

**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**

^3ã54^5
*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*