Saturday

December 10, 2016
Total # Posts: 193

**Chemistry**

Calculate partial pressure given ka1, pH and KH The equation given in the question was: HCO3-(aq)+H3O+(aq)= CO2(aq)+H2O Calculate the partial pressure of CO2. I think you use : [H3O+] = ka1x(antilog pH)/(antilog pH) Then Henrys law: Equilibrium conc.[G]=Kh(law constant) ×...

*December 10, 2016*

**Math Question **

Can anyone explain to me how to graph a circle if it has a square root radius? Example: x^2+y^2-7x=12-4y The radius is ?113/2, but I don't know how to graph it.

*November 28, 2016*

**vocab help**

1. discretion 2. scrupulous 3. dexterous 4. facetious 5. vicarious 6. detriment 7. ostentatious 8. gregarious 9. optimum 10. sensory am i correct or wrong on some?

*September 1, 2016*

**vocab help**

words - detriment, dexterous, discretion, facetious, gregarious, optimum, ostentatious, scrupulous, sensory, and vicarious. "you have to be use __ in choosing your friends," my father said."If your associates are dishonest, people will think that you yourself ...

*September 1, 2016*

**advancing vocabulary skills third edition**

i need help on sentence check 2 and final check chapter 1

*September 1, 2016*

**hhs**

Instructions:Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. Match each set of vertices with the type of quadrilateral they form. Tiles A(2, 0), B(3, 2), C(6, 3), D(5, 1) a parallelogram with nonperpendicular adjacent sides A(3, 3), B(3, 6), C(7...

*June 27, 2016*

**Math Geometry**

Polygon ABCD is similar to polygon WXYZ, and and are corresponding sides. You know the perimeter of each polygon, and you know the measure of BC. What can you find? A. Measure of all sides of both polygons B. Measure of <A and <W C. Area of each polygon D. Measure of XY

*June 21, 2016*

**Science Check answers**

they would be reverse

*April 29, 2016*

**chemistry**

at some temperature, Keq=33 for the reaction H2 + I2 -> 2HI. If initially, [H2]= .0600 M and [I2]= .0300 M, what are all three equilibrium concentrations?

*March 7, 2016*

**Pre algebra**

Sara bikes 4/5 km in 2 min. Write and simplify a unit rate that represents the distance sara bikes in 1 min.

*February 11, 2016*

**Engineering**

The density of gasoline is 0.72 grams per cubic centimeter. What is the mass in units of kilograms of a 5-gallon container filled completely with gasoline? Ignore the mass of the container.

*February 7, 2016*

**engineering**

Awesome! Thank you so much.

*January 31, 2016*

**engineering**

In many engineering uses, the value of �g�, the acceleration due to gravity, is taken as a constant. However, g is actually dependent upon the distance from the center of the Earth. A more accurate expression for g is: g=g0(Re/Re+A)^2 Here, g0 is the ...

*January 31, 2016*

**Science**

Thanks!

*January 30, 2016*

**Science**

Hypotheses can be rejected or supported by experiments, or, in some instances, new observations. i think it's true

*January 30, 2016*

**Science**

the possibilities are what they claim might have been what her main hypothesis might have been based on. Since fishes need water and their natural habitat for survival, im guessing the answer was the first option to represent her hypothesis.

*January 30, 2016*

**Science**

Consider the researcher's experiments on the mysterious die-offs of fish in North Carolina rivers. Which of the following best represents her main hypothesis? Question 8 options: Fish maintained in laboratory environments were dying when exposed to river water. Microscopic...

*January 30, 2016*

**calculas**

An unfenced rectangular plot of land with an area of 15000 square feet is to be split up into two rectangular gardens. Find the minimum amount of fencing required to define and separate these two gardens? Where do I begin? I just want to know how to set up the equation to ...

*November 30, 2015*

**Math**

A plane leaves an airport and flies South 58 Degrees East for 2 hours, then changes course to South 43 Degrees West and flies for 3 hours. How far away is the plane from the airport if it keeps a constant speed of 500km/h? Draw a diagram and solve to the nearest km. I got 1636...

*November 4, 2015*

**joint heirs college, Fola agoro, shomolu Lagos.**

Identify the solid remaining when lithium trioxonitrate v is heated

*October 15, 2015*

**Chemistry**

A goal of the acid-base titration in this scenario is to determine the concentration of sodium hydroxide solution. To do this, a 1.3000 g sample of potassium hydrogen phthalate (KHC8H4O4) is massed out. The KHP has one acid proton (H+). The solid is dissolved in a beaker and 2...

*September 26, 2015*

**History**

desert

*September 10, 2015*

**PHysics**

This is online homework. This is all the information given with Part B asking the speed of the swimmer.

*September 9, 2015*

**PHysics**

An athlete crosses a 21 m wide river by swimming perpendicular to the water current at a speed of 1.1 m/s relative to the water. How fast is the water in the river flowing with respect to the ground in m/s?

*September 9, 2015*

**Calculus**

f'(x)>0

*May 7, 2015*

**Art**

second one is B just took the test so the Answers are A,B,D

*March 9, 2015*

**Math**

Translate the sentence into an inequality. Six increased by the product of a number and 10 is at most −16 . Use the variable x for the unknown number.

*February 11, 2015*

**geometry**

Find the perimeter and area of the figure 12inches and 5inches

*January 31, 2015*

**Calculus**

1) An equation of the line contains points (7/9, 7) and (-7/9) is 2) Find the slope of the line tangent to the curve y=x^2 at the point (-0.6, 0.36) and find the corresponding equation of the tangent line

*January 28, 2015*

**Algebra**

It takes 15 men working steadily 4 days to dig the foundation for a new apartment. How many days would it have taken 25 men working at the same rate to dig the foundation? Express your answer as a decimal to the nearest tenth.

*December 31, 2014*

**Finite Math**

Let A and B be two events in a sample space S such that P(A) = 0.5, P(B) = 0.6, and P(A intersection B) = 0.15. Find the probabilities below. Hint: (A intersection Bc) union (A intersection B) = A. (a) P(A|Bc) ________ (b) P(B|Ac) ________

*November 20, 2014*

**Finite Math**

A box contains two defective Christmas tree lights that have been inadvertently mixed with eight nondefective lights. If the lights are selected one at a time without replacement and tested until both defective lights are found, what is the probability that both defective ...

*November 20, 2014*

**intermediate math**

angie and payton jog of opposite each other and angie can jog 4.5 mile faster than payton. after 1.5 hours they are 17 miles apart. how much can each person jog

*September 29, 2014*

**chemistry**

When you put it in Lon-Capa do not capitalize the first letter.

*May 10, 2014*

**Algebra**

f(t) 30000 1+20e^-1.5(t)

*April 12, 2014*

**Algebra**

F(t)= 30000/1+20e^-1.5t Describes the number of people, f(t), who have become ill with influenza t weeks after the initial outbreak in a town with 30,000 inhabitants. a.) How many people became ill with flu when the epidemic began? b.) How many people were ill by the end of ...

*April 12, 2014*

**Algebra**

Medical research indicates that the risk of having a car accident increases exponentially as the concentration of alcohol in the blood increases. The risk is modeled by R=6e^12.77x Where x is the blood alcohol concentration and R, given as a percent, is the risk of having a ...

*April 12, 2014*

**algebra**

Solve the following: 3ln(4x)=17

*April 11, 2014*

**algebra**

solve: log base of 7 (3x+2)=5

*April 11, 2014*

**Math**

How does 26.666 equal 26.2? Could you show me a model of how to do this? Thank You

*April 8, 2014*

**Mah **

what are the anwesers to 3, 4, 6 and 10? please.

*February 3, 2014*

**Math**

A shark swam 30 meters to a boat in 16 seconds. How long did it take to swim each meter? 16/30 or 8/15 seconds?

*January 14, 2014*

**Math**

Can you show me the formula used for the following question - how can 7 kids share 3 liters of soda equally?

*January 14, 2014*

**algebra**

I need help solving 8 = 3x + 6y for y. Thank you!

*November 18, 2013*

**algebra**

How do I find the perimeter of a square with one side listed as 4x + 3 and one more side listed as 3(2x - 5)? Thank you

*November 18, 2013*

**math**

On a 9-hour trip home from winter break, Mary was forced to drive on a stretch of highway that had a lot of construction. At first she had to go 55 miles per hour for a certain amount of time, but then she was able to go 65 miles per hour for the rest of the trip and in total ...

*August 19, 2013*

**C++**

what are the simplest methods to understand C++ programming language?

*June 6, 2013*

**Math**

The area of a trapezium is 360 in2. If the ratio of the bases to the height is 6:10:5, find the dimensions of the trapezium.

*June 5, 2013*

**Math**

A 20 foot ladder is leaning against a building. If the ratio of the base of the ladder's distance from the building to its top's height from the ground id 3:4, find how high the top of the ladder is from the ground.

*June 5, 2013*

**Math**

The area of a yard is 15000. If the ratio of the length to the width to the depth is 4:2:1, what are the dimensions of the pool?

*June 5, 2013*

**Physics**

A yo-yo with an axle diameter of 2.00cm has a 80.0cm length of string wrapped around it many times in such a way that the string completely covers the surface of its axle, but there are no double layers of string. The outermost portion of the yo-yo is 4.00 {\rm cm} from the ...

*May 25, 2013*

**Physics**

How much mechanical energy was lost during the ball's fall?

*May 20, 2013*

**Math~Polynomials**

Number Five is three!!

*May 13, 2013*

**Math**

John cut an apple pie into 6 equal slices. His friends ate some of the pie and now 3/5 is left. John wants to put each slice of the leftover pie on its own plate. What part of the pie will he put on each plate?

*April 17, 2013*

**Math Help please**

You complain that the hot tub in your hotel suite is not enough. The hotel tells they will increase the temperature by 10% each hour. If the current temperature of the hot tub is 75 degrees Fahrenheit, what will be the temperature of the hot tub after three hours to the ...

*April 17, 2013*

**Physics**

A heat engine does 650 J of work and dumps 1270 J of heat to its cold reservoir. What is its efficiency?

*April 16, 2013*

**Maths**

Solve for the value of x: 6log(x^2+1)-x=0

*April 14, 2013*

**Please help! Maths**

For what value of K will the equation 3x^2- 4x-(1+K)= 0 have equal roots?

*April 13, 2013*

**Please Reiny Solve it For me Again! please......**

6log(x^2+1)-x=0

*April 10, 2013*

**Please Reiny Solve it For me Again! please......**

Solve for the value of x: log5(x-2)+log8(x-4)=Log6(x-1)..For your information that 5,8 and 6 are bases not just multipliers. Thank you.

*April 10, 2013*

**Please solve**

Solve and graph: y>2x-1

*April 10, 2013*

**Please Help work it out! LOGARITHM**

log4(3x-7)^2=10. I have no idea in working it out.

*April 4, 2013*

**Please Help!!!! Maths**

X^2-6X+1=(3X+5)/2

*April 4, 2013*

**Please Help work it out! Maths**

1/(X-2)=3/(X+2)-(6X/(X^2-4)

*April 4, 2013*

**Please Help work it out! Maths**

(2x-1)/(x+1)=2X/(X-1)+ (5/X)

*April 4, 2013*

**Maths**

Find the value of x: (2x-1)/(x+1)=2x/(x-1)-(5/x)

*April 4, 2013*

**Please solve it for me!! Please...Maths**

x^2-6x+1=(3x+5)/2

*April 4, 2013*

**Please solve it for me!! Please...Maths**

Solve for the value of x: 6log(x^2+1)-x=0

*April 4, 2013*

**Please help me work it out!!! Maths**

solve for x: ln(x^2-6x-16)=5

*April 4, 2013*

**Please help me here!!! Maths**

Solve for the value of x: ln(x^2-6x-16)=5. Please help me work it out because I do not have an idea in work it out.

*April 4, 2013*

**Please help me here!!! Maths**

Isolve for x: ln(x^2-6x-16)= 0 . help me beacuse I do not have the idea to work it out.

*April 4, 2013*

**Please help me!!!! maths**

Solve for x: log5(x-2)+log8(x-4) = log6(x-1). I do not have any idea on this topic.

*April 3, 2013*

**Help!!!! math**

An hiking group wanted to travel a long chapter of the Appalachian Trail for 4 days. They planned to hike 6 hours per day and wanted to complete a trail chapter that was 60 miles long. what rate of speed would they have to average to complete the trail chapter as planned?

*April 3, 2013*

**Please solve it.Logarithm**

Please help me because I do not any idea in Logarithm topic.Solve for the value of X: 6log(x^2+1)=5

*April 2, 2013*

**maths**

For the following graph: a. Find the domain of f. b. Find the range of f. c. Find the x-intercepts. d. Find the y-intercept. e. Find the intervals over which f is increasing. f. Find the intervals over which f is decreasing. g. Find the intervals over which f is constant. h. ...

*February 18, 2013*

**economics**

The country of Arkanslavia had money supplies of 183 million arkollars in 2010 and 644 million in 2011. They have real output of 791 arkollars in both years. In Arkanslavia velocity was 7 in 2010 but changed to 5 in 2011. What is the difference in the price level between 2011 ...

*January 30, 2013*

**Physics: Buoyancy**

A crane lifts the 23000 kg steel hull of a ship out of the water. Determine the following. (a) the tension in the crane's cable when the hull is submerged in the water

*January 27, 2013*

**Physics: Buoyancy**

A crane lifts the 23000 kg steel hull of a ship out of the water. Determine the following. (a) the tension in the crane's cable when the hull is submerged in the water

*January 27, 2013*

**S.S. Check answers**

thank you

*November 9, 2012*

**Ella Minnow Pea**

Sorry im 4 years late

*September 26, 2012*

**HEALTH**

I swear every question you have on Ashworth, you come here for help Lol

*August 22, 2012*

**health**

Me too! Go Ashworth! the answer is B

*August 11, 2012*

**geometry**

LM has the endpoints L(-1,1) and M(-5,-3) find the coordinates of the midpoint of LM

*June 7, 2012*

**math**

Suppose that $200 was deposited on 1st Jan 2000 into an account that earned 5% interest compounded semiannually. Suppose further that $200 was deposited on 1st Jan 2001 into a different account that earned 6% interest compounded semiannually. In what month of what year will ...

*February 19, 2012*

**math**

Since it didn't ask for an improper fraction or mixed number and that is what we are studying I came up with 40/8 as the improper and 5 for the mixed?

*February 8, 2012*

**math**

A shipment of boxes weighs 40 pounds. There are 8 boxes and each weighs the same number of pounds. How much does each box weigh?

*February 8, 2012*

**Biology**

Explain what happens during each of the three steps of cellular respiration and explain why a lack of oxygen is such a severe problem to the process.

*December 2, 2011*

**Biology**

Using the fundamentals of thermodynamics, explain why we must continue to eat in order to maintain homeostasis?

*December 2, 2011*

**Physics**

A 400-g block of copper at a temperature of 85°C is dropped into 300 g of water at 33°C. The water is contained in a 250-g glass container. What is the final temperature of the mixture?

*November 29, 2011*

**calculus**

A force of 1300 lb compresses a spring from its natural length of 16 in to a length of 10 in. How much work is done in compressing it from 10 in to 6 in?

*November 28, 2011*

**calculus **

find the work done in winding up a 175 ft cable that weighs 4.00 lb/ft?

*November 28, 2011*

**Chemistry**

56.1%

*November 26, 2011*

**physics**

a disk has a mass of 2kg and a length of 2 meters and it oscillates about an axis that is 1.5 meters from the center of the disk. It is initially displaced at an angular displacement of 0.2 radians and released. A) What is the equation of motion? B)What is the kinetic energy ...

*November 20, 2011*

**physics**

What is the gravitational force on a bar that is 3 meters long and has a density of 3x kg/m and lies 3 meters from a 2 kg point mass

*November 19, 2011*

**Physics**

A 2 kg steel ball strikes a wall with a speed of 8.15 m/s at an angle of 54.4◦ with the normal to the wall. It bounces off with the same speed and angle, as shown in the figure. If the ball is in contact with the wall for 0.243 s, what is the magnitude of the average ...

*November 2, 2011*

**Physics**

A 0.30 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.20 kg puck that is initially moving along the x axis with a velocity of 2.8 m/s. After the collision, the 0.20 kg puck has a speed of 0.5 m/s at an angle of θ = 53° to the ...

*October 23, 2011*

**physics**

How far to the nearest tenth of a meter can a runner running at 15 m/s run in the time it takes a rock to fall from rest 68 meters?

*October 6, 2011*

**Physics**

A box of books weighing 290 N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move the box 3.80 m, ...

*October 2, 2011*

**Physics**

A train has a mass of 5.22 multiplied by 106 kg and is moving at 70.0 km/h. The engineer applies the brakes, which results in a net backward force of 1.87 multiplied by 106 N on the train. The brakes are held on for 37.0 s. (a) What is the new speed of the train? (b) How far ...

*October 2, 2011*

**science**

a mineral is organic, which means that it contains what?

*September 28, 2011*