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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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.
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
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
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
Could someone help me solve this Absolute Equation? Please? I really cant 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
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; 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
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
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
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
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
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
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
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
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
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
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
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
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
- 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
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
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
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
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
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