Tuesday

December 1, 2015
**Math**

A particle starts at the origin and moves along the curve 4y = x^2 to the point (4, 4). If the y-component of its acceleration is always equals 2 and the y-component of its velocity is initially zero, find the x-component of its acceleration.
*Tuesday, October 6, 2015 by cat*

**help whit math**

I need a website to study off of I have a times and fractions test help. I really need help if I don't turn it in I get an f help.
*Tuesday, October 6, 2015 by Jaylen *

**Math**

Find the lateral area of a tetrahedron. Slant height is 13in 12in for height.
*Tuesday, October 6, 2015 by Ashley*

**math**

describe a real world relationship between the area of a rectangle and its width, as the width varies and the length stays the same. Sketch a graph to show this relationship.
*Tuesday, October 6, 2015 by Robert*

**Math**

It costs $17 per square foot to buy and install a certain kind of tile on a floor. Find the cost of buying and installing that tile in a large rectangular room that measures 8.5 yards by 15 yards.
*Tuesday, October 6, 2015 by Lateashea *

**math**

If you know the rate of a water leak in gallons per hour, how can you find the number of hours it takes for 1 gallon to leak out? Justify your answer. THANK YOU!
*Tuesday, October 6, 2015 by kimie*

**Maths**

2t+8 is equal to or more than -4(t+1) Can someone walk me through this please? Math really is my worst subject....
*Tuesday, October 6, 2015 by Vae*

**math**

1. Estimate the value of the square root of 45 o the nearest integer. a. -7 b. 6 c. 7** d. -6 2. An estimate for the square root of -66 is ? a. -6 b. -7 c. -8** d. -9 3. An estimate for the square root of 3 is? A. 1 B. 1.2 C. 1.7** D. 2
*Tuesday, October 6, 2015 by kayla plz help*

**math- 165 calculas**

An open box is to be made from a eighteen-inch by eighteen-inch square piece of material by cutting equal squares from the corners and turning up the sides (see figure). Find the volume of the largest box that can be made. figure ( a box and one side is 18-2x) v= ? in^3
*Tuesday, October 6, 2015 by akash*

**Math (Algebra) **

Gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 multiple choice questions correct and received 19 points for her essay. Ezia got 15 multiple choice questions correct and received 31 points for her essay. How ...
*Tuesday, October 6, 2015 by Anonymous*

**math- 165 calculas**

Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = 5x^2 + 1/ 7x^3 − 2x^2 + 5
*Tuesday, October 6, 2015 by akash*

**math- 165 calculas**

Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = x^3 − 3x^2 + 5x + 1/ x^2 − 5x + 3
*Tuesday, October 6, 2015 by akash*

**math intercepts**

a submarine is 800 meters below the surface of the ocean and is ascending at a rate of 40 meters every minute. mathematical reasoning can be used to determine when the submarine would reach the surface which graph below most accurately communicates this reasoning?
*Tuesday, October 6, 2015 by billee*

**math**

a rectangular field is 750 m long and 450 m broad has two roads in middle of it,which are 5 m wide, running at right angles to each other. one is along the breadth and the other along the length .find the area
*Tuesday, October 6, 2015 by evin*

**MATH**

If the circumference of the circle in terms of π is: 4x + 8 _______ π cm then find its radius. 5x + 1 Thank You:))
*Tuesday, October 6, 2015 by Camz*

**MATH**

find the perimeter of a triangle whose sides are: p-24/p^2-3p-18, -3/p+3 and p/p-6 its in fraction form^ Thank You :))
*Tuesday, October 6, 2015 by Camz*

**MATH**

The side of the square is: x + 5 ______ x - 5 Find its area. Thank You :))
*Tuesday, October 6, 2015 by Camz*

**math**

Four years ago manny is 14 years old. If he is teice older than sam, how old is sam?
*Tuesday, October 6, 2015 by Anonymous*

**math**

An online retailer sells two packages of protein bars. Package A: 10-pack of 2.1 ounce bars Cost A: $15.37 Package B: 12-pack of 1.4 ounce bars Cost B: $15.35 1)Which package has the better per bar? 2)Which package has the better price per ounce? 3)Which package do you think ...
*Tuesday, October 6, 2015 by kimie*

**math**

Here is the information for two pay-as-you-go cell phone companies, On Call- 3.5 hours: $10 Talk Time- 1/2 hour: $1.25 1)What is the unit rate in dollars per hour for each company? 2)Which company offers the best deal? Explain your answer. 3)Another company offers a rate of $0...
*Tuesday, October 6, 2015 by Tim*

**Math**

I need 30 desks in a classroom I have 4 rows with 5 chairs in each how many more do I need
*Tuesday, October 6, 2015 by Eduardo*

**Calculus/Math**

lim ((1-2x)/(√1+x^2)-1) x→∞ Find the value.
*Tuesday, October 6, 2015 by Marc*

**MATH**

Please help, solution set for 7(4z-3)>59 please.?
*Tuesday, October 6, 2015 by Joyce*

**Math**

One day, a deli sold a total of 39 hamburgers and hot dogs. The revenue from these sales was $137.35. The hamburgers were $3.87 each and the hot dogs cost $2.90 each. a) Write a mathematical expression for the number of burgers, x, and the number of hot dogs, y, sold that day...
*Monday, October 5, 2015 by Dustin*

**Math**

A truck can be rented from Basic Rental for $45.00 a day plus $0.25 per mile. Continental charges $25.50 per day plus $0.40 per mile to rent the same truck. a) Write an expression to calculate the cost of renting and driving a truck from Basic Rental. Let x be the number of ...
*Monday, October 5, 2015 by Dustin*

**Math**

The equation of the line that goes through the points (0,−5) and (−9,−1) can be written in general form Ax+By+C=0 where a=?,b=? and c=?
*Monday, October 5, 2015 by Laly*

**Math **

The equation, in general form, of the line that passes through the point (−5,6) and is parallel to the line 3x−3y+2=0 is Ax+By+C=0, where A=?, B=? and C=11.
*Monday, October 5, 2015 by Laly*

**Math **

Zabato is thinking of a number. Three times the sum of the number and ten is the same as eight times the number. What is Zabatos number? Help! so confused thank you!
*Monday, October 5, 2015 by Emily*

**math**

name all of the factor and factor strings of 840
*Monday, October 5, 2015 by samantha*

**math**

geologists estimate that earths temperature rises about 10 degrees celsius for every kilometer k below earths surface. suppose it is 50 degrees celsius on the surface of the earth. What is the formula for the temperature t in degrees celsius at a dept of k km?
*Monday, October 5, 2015 by Julia*

**Math**

25 tens=_ hundreds 5 tens
*Monday, October 5, 2015 by Dennis*

**math 5th**

help I need help studying for a testing>
*Monday, October 5, 2015 by Mia*

**math**

Find the distance btw two cities. Assume that the Earth is is a sphere of the radius 4000 miles and that the cities are the on the same longitude(one city is due north of the other).
*Monday, October 5, 2015 by salma*

**math**

a small plane heads west at 320 kph. there is a north wind blowing at 24 kph. what is the velocity (2 parts!) of the plane with respect to the ground? would the answer be 320.9 kph? but there are two parts to the answer. what is the other part?
*Monday, October 5, 2015 by clarice*

**Math**

in a class, 3/5 of the girls and 1/6 of the boys wear spectacles. If 3/4 of those who are wearing spectacles are girls, what fraction of the pupils does not wear spectacles?
*Monday, October 5, 2015 by Luke*

**math**

A regular hexagon with sides of 3" is inscribed in a circle. Find the area of a segment formed by a side of the hexagon and the circle
*Monday, October 5, 2015 by gayathri*

**Math**

Q. A teacher divides 36 students into equal groups for a scavenger hunt. Each group should have at least 4 students, but no more than 8. What are the group's possible sizes?
*Monday, October 5, 2015 by Yanilda*

**Math**

What is the probability of pulling the 2 of clubs from a standard deck of playing cards (52 cards)? .25?? What is the probability of NOT rolling a 5 on a six-sided die? 3/6? or 5/6? What is the probability of pulling a diamond from a standard deck of playing cards (52 cards...
*Monday, October 5, 2015 by Gigi*

**math**

I'm having trouble just starting this problem You receive a $500 gift and decide to use it to start saving for a car. You add $50 dollars a week from your part time job. Write the recursive definition for an arithmetic sequence that models this situation. Then, find the ...
*Monday, October 5, 2015 by MathlessinCarolina*

**Math (Trig)**

A triangle ABC has a trisected angle A. The angle trisectors divide side a (opposite angle A) into three segments which are BD, DE, and DC. The lengths are 2, 3, and 6, respectively. What are the lengths of the other sides?
*Monday, October 5, 2015 by Z*

**math**

What is the probability of rolling an odd number on a six-sided die? .5??
*Monday, October 5, 2015 by Gigi*

**Math**

Find the unknown digit to make each statement true 2.48>2.4__1>2.463
*Monday, October 5, 2015 by Enjoli*

**Math**

What is 3.56 x 10^-5 in standard form? I need help, please explain so I know how to do this from now on. Thank you so much.
*Monday, October 5, 2015 by Please explain to me*

**math **

What help you. To find the product of 3-digit number and a 1-digit number you can multiply the ones multiply the tens multiply the hundreds and find the sum of each what
*Monday, October 5, 2015 by samya*

**Math**

If 10 classes in 10 schools receive 10 calculators each, which expression (10+10+10 or 10x3 or 1000 ) represent the amount of calculators the school discrit will buy.
*Monday, October 5, 2015 by A*

**Math 3rd grade**

The roadrunner bird can run 14 times miles per hour. That's 7 times faster than an ostrich can walk. How fast does an ostrich walk? 7 X ?= 14 I would write the equation like this. Not sure my 8 year old would be able to do this. She knows that 7x 2 or 7+7+14, but they want...
*Monday, October 5, 2015 by Lisa M.*

**Math**

-1.4b + 10= -18
*Monday, October 5, 2015 by Luke*

**Math**

A coin is flipped 7 times, what is the probability that the next flip will be tails How do I do this? a- 1/1 b- 1/7 c- 1/8 d- 1/2
*Monday, October 5, 2015 by Gigi*

**math algebra**

How many liters of a blue dye that cost 1.80 per liter must be mixed with 20 l of anil which costs 2.60 per liter to make a mixture that cost 2.12 per liter
*Monday, October 5, 2015 by totsy*

**math **

I know all my answers in my quiz but this one please help Order the rational numbers from least to greatest :0.42, -1/2, 11/20, -0.51 thanks again I'm not good with decimals :P
*Monday, October 5, 2015 by Deez Got Hee*

**Math in Science**

Estimate the thickness of plant matter that produced a bed of coal 0.6 m thick. About how much coal would have been produced from a layer of plant matter 0.50 m thick.
*Monday, October 5, 2015 by Zoe*

**math**

both jamie and her brother david were born on the same day but david was born three years before jamie how can you represent the relationship between james and david's ages in a table,graph, and equation
*Monday, October 5, 2015 by sophie*

**Math**

I NEED HELP WITH MATH yo 😒😒😒😒
*Monday, October 5, 2015 by Kayla*

**Math**

Write a situation for 15x -20 with a sign no greater than 130 and solve
*Monday, October 5, 2015 by Stephie*

**8th grade math**

Karen ran a 400 meter race in 60.4 seconds and Kim ran 0.3 kilometers in 65.8 seconds. Who ran faster and why
*Monday, October 5, 2015 by Anonymous*

**math **

Could someone help me solve this Absolute Equation? Please? I really can’t figure it out and I would really appreciate any help... Question~~ Evaluate the given expressions when a = 3, b = -3, c = 4, and d = -1 (a/c)|c| + b – d My answer~ (a/c)|c|+b-d (3/4)|4|+(-3...
*Monday, October 5, 2015 by Abby *

**math**

Solve the inequality W > Y plus H all divided by P for H. W divided by P – Y > H W times P divided by Y > H WP – Y > H W + P – Y > H
*Monday, October 5, 2015 by Please help, urgent*

**math**

if Lala eats 12 ounces of peanuts in 4 days how many pounds does she eat per day?
*Monday, October 5, 2015 by dude*

**math**

A length of ribbon is 3 1/2 yd long. How many pieces 1 5/9 yd long can Joy cut from the ribbon? 1 2 3 4 Which number is equivalent to 0.45? 1/45 5/11 4/5 1/4 What is 3.56 x 10 *5 in standard notation? 356,000 3,560,000 0.00356 0.0000356 Ms. Johnson's class is having a ...
*Monday, October 5, 2015 by Lola*

**Math help please?! :)**

What is the solution to (4 x 10^3) x (6 x 10^6), written in scientific notation? 24 x 10^9 2.4 x 10^9 24 x 10^18 2.4 x 10^10 Ted Andrews bought 15 shares of Clark Company stock at $14.875. He sold them a month later $20.375. What was his profit? $6.50 $49.50 $80.50 $82.50 ...
*Monday, October 5, 2015 by Mariana*

**Math**

what is the difference between |-3| and -3.
*Monday, October 5, 2015 by Selena*

**Math; PLEASE CHECK MY ANSWERS**

1.Which of the following is greater than 4.3x10^9 A)2.1x10^9 B)3.2x10^9 C)5.3x10^9 D)7.4x10^8*** 2.Which of the following are less than 6.5x10^-5? A)1.4x10^-3 B)2.5x10^-4 C)7.8x10^-5 D)4.6x10^-6*** 3.Which number is greater than 5.5x10^-7 A)1.8x10^-12 B)6.7x10^8*** C)5.2x10^3 ...
*Monday, October 5, 2015 by Anonymous*

**math, mechanics**

The energy-separation curve for two atoms, a distance, r, apart is: U(r)=−A/r^m+B/r^n Derive and expression for the stiffness of the bond at the equilibrium spacing, in terms of A, B, m, n, and r0. S=dF/dr at r=r0: This is wrong answer for S: Am/r^(m+1) - Bn/r^(n+1)
*Monday, October 5, 2015 by qw*

**math**

a sum of money is shared between to persons at the ratio 2:5 one person received $60 how much was shared
*Monday, October 5, 2015 by jason*

**Math**

How do I simplify this expression : -12 / 3 * (-8 + (-4)^2 - 6 ) + 2 the answer is -6.
*Monday, October 5, 2015 by Tay*

**Math**

give 2 examples of mixed numbers that when multiplied by 3/4 give a product between 3/4 and 1. my mom knows what numbers to use but isn't sure how to explain to me how to calculate them. Can you explain to me the way to calculate the answer? Thank you
*Monday, October 5, 2015 by Cole*

**Math help**

Formulate a linear programming problem for the following situation. Homer Simpson has created two donut assortments for the the Springfield donut shop. The bargain assortment includes 4 pink frosted and 8 glazed donuts and the deluxe assortment contains 9 pink frosted and 3 ...
*Monday, October 5, 2015 by TayB*

**math**

what is 3.9370007 in scientific notation thanks
*Monday, October 5, 2015 by Mark*

**Math**

Water is poured into a hemispherical bowl with a radius of 30cm. The water's depth is 12cm. Calculate the radius of the surface of the water
*Monday, October 5, 2015 by Lorna*

**math correction**

correction what is : 1 x 10^-14 / 2.54 x 10^-3 the x's are (times) not variables thank you.
*Monday, October 5, 2015 by patrick*

**math**

what is 1 x 10-14 / 2.54 x 10 -3 the x's are times not variables. I need the answer in scientific notation
*Monday, October 5, 2015 by patrick*

**MATH 115 PRE-ALGEBRA**

simplify expression 6(3m-7)-2(12y-5)+4(y+6)
*Monday, October 5, 2015 by TC*

**math**

A right rectangular prism is packed with cubes of side length Fraction 1 over 6 inch. If the prism is packed with 12 cubes along the length, 3 cubes along the width, and 2 cubes along the height, what is the volume of the prism?
*Monday, October 5, 2015 by jeremiah*

**Math**

Nine times twelve minus four times two to the power of two plus six equals sixty eight
*Monday, October 5, 2015 by Nick*

**Math**

In a favorable habitat and without natural predators, a population of reindeer is introduced to an island preserve. The reindeer population t years after their introduction in 1990 is given by . F(t)=-0.125t^5+3.125t^4+4000. Estimate the number of reindeer on the island in 2007.
*Monday, October 5, 2015 by Ursula*

**Math **

A home owner goes to the hardware store to purchase the letters that make up a number for a sign he is making, (e.g., F-O-U-R, N-I-N-E, etc.). When he arrives, other customers are doing the same thing. The first customer buys the letters to display ONE, and pays $40. The next ...
*Monday, October 5, 2015 by George *

**math statistic**

In Megabucks, a player who correctly chooses five out of the six winning numbers gets $400. What is the probability of winning $400? Answer is 0.0000924 in the book but I really don't know where I'm doing mistake. my work is = 6!/5!(1!) combination Thank you so so much...
*Monday, October 5, 2015 by Lucas*

**Math**

Draw the line through the point (4,5)that is parallel to the y-axis. Write the equation of this line and state its slope. Can anyone assist me. The example or instructions is not in my text.
*Monday, October 5, 2015 by April*

**Math **

Which of the following are necessary to describe a rotation of a figure on a coordinate plane ? A.the center of rotation B.the shape of the figure C.the number on of degrees of the rotation D.the direction of the rotation Is the answers A and C? thank you
*Sunday, October 4, 2015 by LoveMuffin*

**math**

A heated piece of metal cools according to the function c(x) = (.5)x − 11, where x is measured in hours. A device is added that aids in cooling according to the function h(x) = −x − 3. What will be the temperature of the metal after five hours?
*Sunday, October 4, 2015 by dalton*

**Math**

4x−y+2z=11 x+2y−z=−1 2x+2y−3z=−1 can someone help me find x,y,z, I have tried isolation but i cant seem to get it
*Sunday, October 4, 2015 by Adam*

**math**

He spent $48 on art supplies. The canvas for each of his paintings is an additional $2. He plans to sell his paintings for $10. Find the number of paintings (p) he will need to sell to break even.
*Sunday, October 4, 2015 by brandon*

**math 6th grade**

At basketball practice, Kyla made 60 free throws. this was 80% of her attempts. how many free throws did Kyla attempt?
*Sunday, October 4, 2015 by alyson*

**math**

Information:Juan plans to bulid a bookcase to store his paperback books DVDs and CDs he has lumber that he will use for the sides and back of the bookcase the bookcase will have 5 shelves in each shelf will be two and a half feet long Question: juan bought lumber that is 18 ...
*Sunday, October 4, 2015 by help*

**Math **

- 2 1/4 cups all purpose flour - 1 teaspoon of backing soda - 1 teaspoon of salt - 1 cup (2 sticks) of butter softened - 3/4 cups of sugar - 3/4 cup of packed brown sugar -1 teaspoon of vanilla extract -2 large eggs -2 cups of chocolate chips -1 cup of chopped nuts (Recipe ...
*Sunday, October 4, 2015 by Brenda *

**Math**

Find the value of an odd natural number x if LCM(x, 40)=1400
*Sunday, October 4, 2015 by Exerice 1.1*

**Math**

Find the product tell which strategy you for (4x10)x10
*Sunday, October 4, 2015 by Emmya*

**Math**

If one honeybee makes 1/12 teaspoon of honey during its lifetime. how many honey bees are needed to make 1/2 teaspoon of honey? 1/12*2/1= 2/12=1/6 ???
*Sunday, October 4, 2015 by MVN*

**math**

I need the order from least to greatest 4/9 5/6 1/2 2/3
*Sunday, October 4, 2015 by talia*

**Math**

Evaluate the following limit algebraically. lim (sqrt 4+x-2)/x x approaches 0
*Sunday, October 4, 2015 by Levi*

**math**

At a car rental agency, 0.34 of the cars are returned on time. A sample of 13 car rentals is studied. What is the probability that more than 3 of them are returned on time? Write only a number as your answer. Round to 2 decimal places ( for example: 0.24). Do not write as a ...
*Sunday, October 4, 2015 by Anonymous*

**math**

Types of bonds are divided into three categories: good risk, medium risk, and poor risk. Assume that of a total of 13,838 bonds, 7,035 are good risk, 1,388 are medium risk, and the rest are poor risk. One bond is chosen is chosen at random. what is the probability that the ...
*Sunday, October 4, 2015 by Anonymous*

**Math**

The lcm of two numbers is 40 one of the numbers is 5 what is the other numbers
*Sunday, October 4, 2015 by Angaly*

**math**

Evaluate 2x+6y when x=-4/5 and y=1/3. Write your answer as a fraction or mixed number in simplest form.
*Sunday, October 4, 2015 by Anonymous*

**math**

Evaluate -x+4y when x=-4/5 and y=1/3. Write your answer as a fraction or mixed number in simplest form.
*Sunday, October 4, 2015 by Anonymous*

**math**

7x-3y+4z=18 13x+6y+8z=30 11x-9y-12z=16 Find x,y,z please show the solution pleaseee
*Sunday, October 4, 2015 by Jean*

**math**

If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take both of them to paint the house together? > I know the answer, but I do not know what is the name of the methods. EX: 1/n= 1/4 + 1/6 1/n =5/12 n= 12/5
*Sunday, October 4, 2015 by Mohammed *

**math**

The energy-separation curve for two atoms, a distance, r, apart is: U(r)=−A/r^m+B/r^n Derive and expression for the stiffness of the bond at the equilibrium spacing, in terms of A, B, m, n, and r0. S=dF/dr at r=r0:
*Sunday, October 4, 2015 by ana*

**math**

Bacteria in a certain culture increase at a rate proportional to the number present. If the number doubles in one hour, how long does it take for the number to triple?
*Sunday, October 4, 2015 by rama krishna*

**Math(Dynamics)**

To find the time taken by a planet to describe a given arc of its elliptic orbit starting from the nearer and of the major axis.
*Saturday, October 3, 2015 by Siddhartha Sankar Roy*