Wednesday

February 22, 2017
Total # Posts: 105,434

**Physics**

The modern boxing glove was introduced in 1743. Before then, gloves weren’t used. Let's assume that the average boxer's arm has a mass of 7 kilograms and reaches 10 m/s before hitting an opponent's face. If upon Collision the face was compressed about three ...

*December 1, 2016*

**chemistry chem check**

oooh. thank you. :-)

*December 1, 2016*

**chemistry chem check**

an ideal mixture contains 0.4 mol of nonvolatile solute and 0.8 mol of volatile solvent. the resulting vapor pressure was 60 mmHg at 300K. What vapor pressure should be reported at 300 K for pure solvent? A) 48 mmHg B) 60 mmHg C) 75 mmHg D) 90 mmHg **Would it be B) 60 mmHg ...

*December 1, 2016*

**Finite Math**

Kane Manufacturing has a division that produces two models of hibachis, model A and model B. To produce each model-A hibachi requires 3 lb of cast iron and 6 min of labor. To produce each model-B hibachi requires 4 lb of cast iron and 3 min of labor. The profit for each model-...

*December 1, 2016*

**english**

Parenthetical expression includes information that may be helpful but is not essential to the meaning of a sentence. They are de-emphasize by

*December 1, 2016*

**algebra 2**

The given series has six terms. What is the sum of the terms of the series? 10 + 25 + 40 + . . . + 85

*December 1, 2016*

**English Help ASAP**

don't worry about mr smartass anyone who looks for help.

*December 1, 2016*

**Math**

I am less than 100 and greater than 90. If you add the digits, the sum is 17. What number am I?

*December 1, 2016*

**math**

Which department has the largest difference between the highest and lowest paid employee?

*December 1, 2016*

**Henry 's weekly wage is €450. If Henry spends €90**

Henry's weekly wage is €450 . If Henry spends €90 on rent. What fraction of his wages does he spend on rent?

*December 1, 2016*

**spainsh**

adonde(va\vamos)Sandra

*December 1, 2016*

**Physics**

Are you sure you're not in an online school and that you are at a physical school?

*December 1, 2016*

**Physics**

Are you a student doing online school?

*December 1, 2016*

**Math**

Ryan left. Gabby left 3 hrs later, she drove 42mph faste. In 2 hrs she caught up. What was Ryan speed

*December 1, 2016*

**Herzing**

Sue can paint 1/4th of the wall in an hour and Joe can paint it in 1/6th of an hour.

*December 1, 2016*

**calculus**

Let g be a function that is defined for all x, x ? 2, such that g(3) = 4 and the derivative of g is g?(x)=(x^2–16)/(x?2), with x ? 2. Find all values of x where the graph of g has a critical value. For each critical value, state whether the graph of g has a local maximum...

*December 1, 2016*

**Math**

At first the ratio of the number of boys to the number of girls in a Mathematics Club was I : 2 when 5 more boys joined the club , the ratio became 3 : 4 How many members were there in the club at first?

*December 1, 2016*

**Chemistry 30**

How to find Oxidation Numbers of any component

*December 1, 2016*

**spanish 1a**

Choose the phrase that best complete the sentence _________ tenga los libros de biología a. yo creo que b. yo sé que c. Dudo que d. Have que

*December 1, 2016*

**Algebra**

The length of a rectangle is 2 ft less than three times the width. The area is 60 ft SQUARED. Find the length of the rectangle

*November 30, 2016*

**Calculus**

Find all values of c that satisfy the Mean Value Theorem for f(x) = x^3 + 1 on [2, 4].

*November 30, 2016*

**Algebra 1**

3x + y = -11 6x - 2y = -2

*November 30, 2016*

**Physics**

the theta should be 3.0 not 6.0 degree since it said on either side

*November 30, 2016*

**Math**

I can not answer this.

*November 30, 2016*

**computer programming**

Write a c++ code to vertically mirror an image.

*November 30, 2016*

**physics**

the speed of the train increased from 15 mi/hr to 25 mi/hr in distance of 500 ft. calculate the average acceleration in ft/s^2

*November 30, 2016*

**math**

1/2 of a class play soccer, 1/4 of the team are girls, what fraction represents how many girls on the team

*November 30, 2016*

**Physics**

Gas is confined in a tank at a pressure of 11.0 atm and a temperature of 25.0 degrees C. If two-thirds of the gas is withdrawn and the temperature is raised to 75.0 degrees C, what is the new pressure of the gas remaining in the tank? Please help!

*November 30, 2016*

**Physics**

A container is filled to a depth of 20cm with water. on top of the water floats a 30.0 cm thick layer of oil with specific gravity of 0.700, what is the absolute pressure at the bottom? Please help!

*November 30, 2016*

**English**

I'm sorry, I meant D

*November 30, 2016*

**English**

Which of the following is a true statement about an MLA Works Cited page? A. The Works Cited page requires no special formatting. B. The Works Cited page should immediately follow the conclusion and be on the same page. C. The Works Cited page should contain all information ...

*November 30, 2016*

**Algebra**

Suppose a parabola has an axis of symmetry at x = -2, a minimum height at -6, and passes through the point (0, 10). Write the equation of the parabola in vertex form.

*November 30, 2016*

**Algebra**

The equation h= -16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground,at t seconds after the ball is thrown upward.How many seconds after the ball is thrown will it reach its maximum height? What is its maximum height?

*November 30, 2016*

**precalculus**

When using Gaussian elimination to solve a system of linear equations, explain how you can recognize that the system has no solution.

*November 30, 2016*

**precalculus**

When using Gaussian elimination to solve a system of linear equations, explain how you can recognize that the system has no solution. Give an example that illustrates your answer.

*November 30, 2016*

**Language Arts**

Read the following lines from Sunjata. God is with the just. Everybody does what he wants, But God makes the final decision. The chick destined to be a rooster will eventually crow, No matter what is laid in its path. It will overcome. Which would BEST describes the tone ...

*November 30, 2016*

**Math**

One half of a number plus three is eighteen. Find the number

*November 30, 2016*

**English**

Prewriting can be helpful when trying to narrow a topic because it A. can reveal an interesting angle that may become your thesis. B. can usually be submitted as the final essay. C. helps you eliminate ideas that would support your thesis. D. raises a lot of issues related to ...

*November 30, 2016*

**e**

Find the area of a parallelogram with sides of length 6 and 8, and with an interior angle with measure $45^\circ$.

*November 30, 2016*

**Math**

Thank you for your help.

*November 30, 2016*

**Math**

1. Suppose y varies directly with x and, y=15 and x=5. Write a direct variation equation that relates x and y. What is the value of y when x=9? I need a little help on how to figure out how to write this out. Any help will be appreciated. Thank you

*November 30, 2016*

**world geography**

The results of the Cold War included all of the following except_

*November 30, 2016*

**precalculus**

Can you check my answer? If it is wrong can you please explain why and give the correct answer? Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6 answer:2x+4y+z=-4 8y-5z=-17 z=1

*November 30, 2016*

**pre calculus**

can you check this question? An object moving vertically is at the given heights at the specified times. Find the position equation s = at^2 + v0t + s0 for the object given the following conditions. •At t = 1 seconds, s = 48 feet •At t = 2 seconds, s = 64 feet •...

*November 30, 2016*

**math**

Find the cost of 5 banana if the rate of banana is rupee 15 a dozen

*November 30, 2016*

**Calculus**

Consider the function f(x) = {0, x = 0 and 1 - x, 0 <= x <= 1}. Which of the following statements is false? a. f is differentiable on (0, 1). b. f(0) = f(1) c. f is continuous on [0,1] d. The derivative of f is never equal to zero on the interval (0,1). B and D are true...

*November 30, 2016*

**English**

I got it...sent it in all ready.It is C....We all ready know God sees all and knows all, so that is not what is being reveled. Kugler regrets not finding the money is being reveled. Thanks for your help. :)

*November 30, 2016*

**English**

If you had read The Last Judgement could you please help me? God...."The fifth and sixth people were an old married couple;he finished them off with an axe and found practically no money, although they had more than twent thousand hidden away." Kugler jumped up: ...

*November 30, 2016*

**Math**

Find all solutions of the equation cot(theta)+1=0 through the interval [0,2pie).

*November 30, 2016*

**precalculus**

please check my answers 1.Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6 answer:2x+4y+z=-4 8y-5z=-17 z=1 2.Find the solution to the system of equations given below. x+y+z=2 -x+3y+2z=8 4x+y=4 answer: 0...

*November 30, 2016*

**Calculus**

Which of the following functions does not satisfy the conditions of the Mean Value Theorem on the interval [-1, 1]? a. 5th root of x b. 2x arccosx c. x/(x - 3) d. sqrt(x + 1)

*November 30, 2016*

**Chemistry 1**

Which shows equilibrium between solute and solvent? I'm stumped. a. 2 M CaCl2 b. 1 g Na2CO3 & 100 mL H2O c. 2 mL methanol & 4 mL hexane d. 1 mL H2O & 3 mL ethanol

*November 30, 2016*

**Chemistry**

A 26.3 gram sample of solid potassium chlorate decomposed and produced 9.45 grams of oxygen gas. What is the percent yield of oxygen?

*November 30, 2016*

**pre calculus**

Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6

*November 30, 2016*

**precalculus**

Write the form of the partial fraction decomposition of the rational expression. 1/9x^2-4

*November 30, 2016*

**michelle**

An object moving vertically is at the given heights at the specified times. Find the position equation s = at2 + v0t + s0 for the object given the following conditions. • At t = 1 seconds, s = 48 feet • At t = 2 seconds, s = 64 feet • At t = 3 seconds, s = 48 feet

*November 30, 2016*

**consumers math**

Sam Sounds received a $290 discount loan to purchase a stereo. The loan was offered at 16% for 90 days. Find the interest in dollars and the proceeds for the following problem.

*November 30, 2016*

**Math**

I am an odd number I am less than 100 The sum of my digits is 12 What am I

*November 30, 2016*

**math**

Town P is on bearing 315 degree from town Q. While town R is south of town P and west of town Q. If town R is 60km away from Q, how fara is R from P?

*November 30, 2016*

**precalculus**

write the equation of the parabola y=ax^2+bx+c that passes through the points(0,3), (1,4), and (2,3)

*November 29, 2016*

**precalculus**

write the system of equations in row-echelon form 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6

*November 29, 2016*

**precalculus**

how do you determine when a system of equations is written in row-echelon form?

*November 29, 2016*

**precalculus**

write the form of the partial fraction decomposition of the rational expresion. (x^2-x+2)/x(x-1)^2

*November 29, 2016*

**precalculus**

write the form of the partial fraction decomposition of the rational expression (2x-4)/(x^2-1)

*November 29, 2016*

**physics**

why you expect the temperature of water at the bottom of Niagara falls to be slightly higher than the temperature at the top of the falls. Why?

*November 29, 2016*

**Math**

The of stamps owned by Shirley, Mary and Daisy is in the ratio of 5: 6 7. The total number of stamps is 540. Mary gives so of her stamps to Shirley and 40 stamps to Daisy. Find the new ratio of their stamps.

*November 29, 2016*

**Math**

1. Use point-slope form to write the equation of a line that has a slope of 2/3 and passed through (-3,-1). Write your final equation in slope-intercept form. Is the answer y=2/3+-1 2. Write an equation of the line that passed through (2,-1) and is parallel to the graph of y= ...

*November 29, 2016*

**Math**

I have 2 questions that I need help with if someone could please help me step by step to figure out how to do this equation it would be very helpful. Thank you 1. Suppose y varies directly with x and, y=15 and x=5. Write a direct variation equation that relates x and y. What ...

*November 29, 2016*

**maths**

a) 11,250 mL b) $60

*November 29, 2016*

**Math**

Needs more information...

*November 29, 2016*

**Math**

1.125 hours or 9/8 hours

*November 29, 2016*

**American History**

In New England, the town is a major unit of local government. Except for a few major cities, each of the six states in the region is divided into towns. Each town generally includes all of the rural and the urban areas within its boundaries. Which best describes the ...

*November 29, 2016*

**social studies**

How were the lives of white people in the north and south alike and different? can someone help me please

*November 29, 2016*

**OPRE**

A producer is very proud of the peaches he grows. He claims that, on average, 10% or less of his peaches in a bushel are defective. You take a sample of 400 peaches and find that 50 are defective. If Î± = 0.025, what will be the decision?

*November 29, 2016*

**Math**

There are 24 students in mrs. garcia's class .she wants to divide the class evenly into groups of at least 4students .write ways in which she can divide the class

*November 29, 2016*

**pre calc**

Find all solutions to the equation 2 sin^2(?) ? sin(?) ? 1 = 0. Please explain throughly. Thank you so much :)

*November 29, 2016*

**Physics**

A 42-kg box slides down a frictionless inclined plane. The angle of the inclined plane is 34.0 degrees. The distance from the box to the bottom of the inclined plane is 3 m. Draw the free body diagram of the force vectors acting on the box. Determine: a. The weight of the box ...

*November 29, 2016*

**social studies**

At home on the hills of Vermont or in the woods of Maine or the Texan ranch comrade of Californians comrade of free north sweeteners of every hue caste am I of every rank and religion. Why did Whitman compose these lines? A. to point out the vastness of the United States B to ...

*November 29, 2016*

**Writing help**

I know how to write a thesis statement... I just need some examples of what I could use as the proposals for small businesses..

*November 29, 2016*

**Writing help**

This is a proposal also..

*November 29, 2016*

**Writing help**

I need ideas for a thesis statement with the topic of "Helping Small Businesses Succeed."

*November 29, 2016*

**social studies**

The answer for the second is d

*November 29, 2016*

**social studies**

At home on the hills of Vermont or in the woods of Maine or the Texan ranch comrade of Californians comrade of free north sweeteners of every hue caste am I of every rank and religion. Why did Whitman compose these lines? A. to point out the vastness of the United States B to ...

*November 29, 2016*

**math**

y+4=-2(x+6)

*November 29, 2016*

**social studies**

Thanks

*November 29, 2016*

**social studies**

We were worked in all weathers. It was never too hot or too cold it could never rain blow hail or snow too hard for us to work in the field. Work work work The longest days were short for him and the shortest nights too long for him. Which statements best paraphrases the view ...

*November 29, 2016*

**precalculus**

Write the form of the partial fraction decomposition of the rational expression. 2x-4/x^2-1

*November 29, 2016*

**pre calculus**

Use Gaussian elimination to write the system of equations given below in row-echelon form 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6

*November 29, 2016*

**math volume**

Tommy decided to also make a sampler can with a diameter of 2 inches and a height of 3 inches. Tommy calculated that the area of the base was es002-1.jpg, and multiplied that by the height of 3 inches for a total volume of es002-2.jpg. Explain the error Tommy made when ...

*November 29, 2016*

**Latin**

how do you say we will love in Latin?

*November 29, 2016*

**Math**

A class of 12 students has taken an exam, and the mean of their scores is 71. One student takes the exam late, and scores 92. After including the new score, what is the mean score for all 13 exams?

*November 29, 2016*

**pre calculus**

solve 2x + y = 8 4x + 2y = 16

*November 29, 2016*

**PHYSICS**

A girl on a carousel has a centripetal acceleration of 21.3 m/s2. What is the acceleration of the girl if the carousel's angular velocity is doubled?

*November 29, 2016*

**precalculus**

solve 17-9x=18y 12y=11-6x

*November 29, 2016*

**precalculus**

how do you solve 2x + y = 8 4x + 2y = 16

*November 29, 2016*

**chemistry**

Find the volume of carbondioxide produced when 25grams ofCalcium carbonate was completely burnt

*November 29, 2016*

**chemistry**

Find the volume of carbondioxide produced when 25grams ofCalcium carbonate was completely burnt

*November 29, 2016*

**pre calculus**

Create systems of equations in two variables that have (a) no solution, (b) one distinct solution, and (c) infinite solutions. Show that each system has the indicated number of solutions by using a graph or solving the system.

*November 29, 2016*