Thursday

February 23, 2017
Total # Posts: 120

**Math**

A coyote can run up to 43 miles per hour while a rabbit can run up to 35 miles per hour. Write two equivalent expressions and then find how many more miles a coyote can run in six hours than a rabbit at these rates

*December 15, 2016*

**Math**

11x+55=

*December 15, 2016*

**Math**

4×5 1/8

*December 15, 2016*

**Math**

I just figured this one out actually, thanks though!

*November 17, 2016*

**Math**

m^2-3mn+n^2+1=0 3m^2-mn+3n^2=13 What are the solutions? Thanks

*November 17, 2016*

**Math**

Solve. x^2-xy+3y^2=15, x-y=2 Thanks

*November 17, 2016*

**Algebra**

The function H(t) = -16t2 + vt + s shows the height H (t), in feet, of a projectile launched vertically from s feet above the ground after t seconds. The initial speed of the projectile is v feet per second. Part A: The projectile was launched from a height of 90 feet with an ...

*April 17, 2016*

**math**

The back of Dante's property is a creek. Dante would like to enclose a rectangular area, using the creek as one side and fencing for the other three sides, to create a pasture. If there is 720 feet of fencing available, what is the maximum possible area of the pasture?

*November 13, 2015*

**Physics**

Catching a wave, a 77-kg surfer starts with a speed of 1.2 m/s , drops through a height of 1.60 m , and ends with a speed of 8.5 m/s . How much nonconservative work was done on the surfer?

*November 10, 2015*

**AP Chem**

Calculate the partial pressure of 4.0 g methane when mixed with 16.0 g oxygen. The total pressure of both gases is 600. torr.

*November 1, 2015*

**Math**

R is a 3 digit number The first digit is the answer when the third digit is divided by 5. The second and third digits add to 8. The difference of the first and second digit is 2.

*August 18, 2015*

**Chemistry**

Using a 0.20 M phosphate buffer with a pH of 6.7, you add 0.71 mL of 0.55 M HCl to 52 mL of the buffer. What is the new pH of the solution?

*February 27, 2015*

**Chemistry**

You are instructed to create 200. mL of a 0.27 M phosphate buffer with a pH of 7.8. You have phosphoric acid and the sodium salts NaH2PO4, Na2HPO4, and Na3PO4 available. (Enter all numerical answers to three significant figures.) H3PO4(s) + H2O(l) equilibrium reaction arrow ...

*February 27, 2015*

**Chemistry**

How many milliliters of 0.150M BaCl2 are needed to react completely with 40.0mL of 0.260M Na2SO4?

*December 12, 2014*

**Chemestry**

determine the volume of a sample of plastic if the mass is 3.00g and the density is 1.24g/cm^3

*December 2, 2014*

**Chemestry**

Calculate the density of an object with a mass of 2.14g and a volume of 11.40mL.

*December 1, 2014*

**Science**

105g after the bubbling stops.

*November 17, 2014*

**Physics**

PPPPPPPLLLLLEEEEEEAAAAAAASSSSSSSSEEEEEEEE HELP

*November 5, 2014*

**Physics**

someone please answer these Physics Q answers no explanation 1 What is the opposite force to gravity 2 an example of a contact force 3 an example of a non-contact force 4 What effect does ‘mass’ have on inertia 5 two examples of forces that could slow an object down ...

*November 5, 2014*

**math**

Find the solution of the linear system. x + y + z = 0 −x + 2y + 5z = 6 3x − y = 12 (x, y, z)= ???

*August 11, 2014*

**science**

A swimmer travels from the south end to the north end of a 30.0 m pool in 15.0 s and makes the return trip to the starting position in 19.0 s. What is the average velocity for the roundtrip?

*May 14, 2014*

**Math**

Well the answer is

*April 8, 2014*

**MATH**

I think the answer is very simple. In order to find the answer you have to look closely to what the answer is telling you .

*March 24, 2014*

**Math**

The actual length of the picnic table is 180 cm with legs 60 cm. What is the scale factor for this diagram?

*February 27, 2014*

**algebra**

A baseball player hits a ball toward the outfield. The height h of the ball in feet is modeled by h(t) = -16t2 + 22t + 3, where t is the time in seconds. If no one catches the ball, how long will it stay in the air? (Round to the nearest tenth of a second and enter only the ...

*February 13, 2014*

**Math**

You want to build a garden around your garden. One side borders your house so it does not need a fence. If you only have 50m of fencing what dimensions should you make your garden in order to maximize the area?

*January 26, 2014*

**Progamming**

The Banking e-Teller system allows bank customers to perform ATM transactions from their cell phone. BET will allow customers to check balances, make remote capture deposits, and perform balance transfers to their checking or savings account. Balance transfers should only be ...

*January 21, 2014*

**7th Grade**

I did Physics, Earth sciences, Natural resources and Biology

*September 16, 2013*

**Question**

Is this website safe?

*August 7, 2013*

**physics**

Two charges separated by a distance of 1 m exert a 1.0N force on each other. If the changes are pulled to a 3-m separation distance, the force on each charge will be

*April 19, 2013*

**programming logic and design**

The Daily Gazette accepts classified ads in several categories. For most ads, the newspaper charges 10 cents per word for the first 50 words, and 8 cents per word for every word after that. Design a flowchart for a program that accepts data about an ad: customer name, ad ...

*February 27, 2013*

**physics**

A 5-kg crate is resting on a horizontal plank. The coeï¬ƒ- cient of static friction is 0.5 and the coeï¬ƒcient of kinetic friction is 0.4. After one end of the plank is raised so the plank makes an angle of 25 with the horizontal, the force of ...

*January 20, 2013*

**Math**

I am the smallest fraction between 2/3 and 3/4. My numerator is 7 less than my dominator. What fraction am I?

*December 10, 2012*

**Math**

I am a fraction between 1/3 and 1/5 My dominator is 1 less than 4 times my numerator. What fraction am I?

*December 10, 2012*

**Health**

Depression is treatable in ________ of cases. A. 90% B. 20% C. 80% D. 50%

*November 30, 2012*

**chemistry**

consider the following equilibrium: Mg(OH)2(aq) <-> Mg2+ (aq) + 2OH-(aq) a) what would happen to the equilibrium if some acid is added to the soultuion? --->OH- would increase causing Mg(OH02 to dissolve b) what would happen to the solubility of Mg(OH)2? ---> it ...

*October 29, 2012*

**chemistry**

Given a saturated solution of CaF2, write the ionic equilibrium and use it to calculate the solubility of CaF2. My answers for the ionic equation and ksp values are CaF2(s)<->Ca2+(aq)+ 2F-(aq) Ksp= [Ca2+][F-]2 ksp=2.02*10^-4 it asks what will happen to the value of ksp ...

*October 29, 2012*

**Honors Geometry**

AB=3 BC=15

*September 11, 2012*

**health**

The answer is Relaxation, for anyone who wants to know.

*August 26, 2012*

**health**

omg im using this for ashworth too!!!! haha to funny!!!

*August 11, 2012*

**college math**

125x^9m+27y^6m

*July 20, 2012*

**help please :)**

its 1935

*June 20, 2012*

**physics**

The string on a violin has a fundamental frequency of 120.0 Hz. The length of the vibrating portion is 36 cm and has a mass of 0.58 g. Under what tension (in newtons) must the string be placed?

*May 7, 2012*

**physics**

A pendulum makes 23 vibrations in 36 s. What is its period in seconds?

*May 2, 2012*

**Algebra**

living in x aisle

*March 28, 2012*

**physics**

How large a force (in newtons) is needed to accelerate a 3 metric-ton vehicle from rest to a speed of 50 km/hr in 4 s?

*March 7, 2012*

**Pre algebra**

mr. and mrs.green received a discount of $87 on a new electric stove. the discount was the result of a 1/4 of sale. what was the sale price of the stove?

*February 13, 2012*

**4th grade math**

I can't understand a word.

*October 26, 2011*

**Math**

A trapezoid is formed by placing a right isosceles triangle next to a square as shown in the figure. The total area is 54 ft2. Find the length of the bases and the height.

*September 26, 2011*

**English**

Can anyone help me with this? After the sentence, identify the underlined part as a prepositional phrase used as an adjective, prepositional phrase used as an adverb, participle, participial phrase, infinitive, or infinitive phrase. Would you like to know more about ...

*September 23, 2011*

**math**

Enter the expression asin(x)+15, where asin(x)is the inverse sine function.

*September 9, 2011*

**chemistry**

WHAT WOULD HAPPEN TO THE REACTION THAT PRODUCES AMMONIA IF WATER IS PRESENT IN THE REACTION MIXTURE?

*July 12, 2011*

**Chemistry**

HCl (g) Hbr(g) HF(g) Which of these gases has the fastest average speed? The highest average kinetic energy? How do I determine this?

*May 3, 2011*

**math**

yz= 15 cm

*March 7, 2011*

**math**

my homework didn't give me one

*March 7, 2011*

**math**

if segment "LM" =12cm and "MN" =15cm, what is the length of "YZ"?????

*March 7, 2011*

**physics**

Two slits are illuminated by a 536 nm light.The angle between the zeroth-order bright band at the center of the screen and the fourth-order bright band is 16.1 degrees. If the screen is 176 cm from the double-slit, how far apart is this bright band from the central peak? ...

*February 5, 2011*

**physics**

All but two gaps within a set of venetian blinds have been blocked off to create a double-slit system. These gaps are separated by a distance of 3.1 cm. Infrared radiation is then passed through the two gaps in the blinds. The angle between the central and the second-order ...

*February 5, 2011*

**Chemistry**

methanol and aluminum are reacted. how many moles of methanol must burn to raise the temperature of 100g of aluminum by 80 degrees Celsius?

*January 13, 2011*

**Statistics**

Jamaal, a player on a college basketball team, made only 50% of his free throws last season. During the off-season, he worked on developing a softer shot in the hope of improving his free-throw accuracy. This season, Jamaal made 54 of 95 free throws. We want to test the ...

*November 3, 2010*

**phyiscs**

A stone is thrown horizontaly from the top of a 25.00-m cliff. The stone lands at a distance of 40.00 m from the edge of the cliff. What is the horizontal velocity of the stone?

*October 22, 2010*

**12th grade-chemistry**

what mass of lead (ii) iodide (pbl2, mass=461 amu)is precipitated by the addition of an excess of potassium iodide (ki, mass=166 amu)to 50.0 ml of 0.60 m lead (ii) nitrate (pb(no3)2, mass=331.2 amu)?

*October 20, 2010*

**physics**

a man has only 4 simple pulleys to lift a heavy load of 6000N. in roder to lift the load easily, he combines the pulleys (3 moveable, 1 fixed). given that the frictional forces are 300N, what force must he apply in order to lift the load?

*September 2, 2010*

**college**

Your asking for how many combinations and not the probability so ignore the answer above. First find the number of combinations if all letters and numbers can be repeated (26*26*10*10*10*10)=6760000 Then find the number of combinations if none were repeated (26*25*10*9*8*7)=...

*July 30, 2010*

**research paper on code of medical ethics opinion 5**

No one Principle of Medical Ethics can stand alone or be individually applied to a situation. In all instances, it is the overall intent and influence of the Principles of Medical Ethics which shall measure ethical behavior for the physician .Now days many copywriting services...

*June 24, 2010*

**math**

(3/5)/6=D/25

*June 22, 2010*

**chemistry**

How many mL of 0.750 M HCl are needed to neutralize 14.89 mL of 0.350 M NaOH? ____ mL

*May 5, 2010*

**chemistry**

A 3.455 g sample of vinegar is titrated. It requires 16.83 mL of 0.2145 M NaOH to get to the phenolphthalein end point. Calculate the weight percent of acetic acid in this sample of vinegar. ____ % Note: calculate the molecular weight to one decimal place, so the answer should...

*May 5, 2010*

**Chemistry**

Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body. Explain the atomic nature of one element and one compound found in human body.

*April 11, 2010*

**Science**

Explain the feedback mechanisms that maintain homeostasis.

*April 6, 2010*

**algebra**

Plane X flies 2,000 kilometers in 5 hours. Plane Y flies half as far in twice the time. What is the average speed, in kilometers per hour, of plane Y?

*March 16, 2010*

**chem**

a 22.5g sample of (NH4)2CO3 (ammonium carbonate) contains _____ moles of ammonium ions?

*November 1, 2009*

**Chemistry**

a sample of C3H8O that contains 200 molecules contain how many atoms?

*November 1, 2009*

**psychology**

ha i sure wish i could.

*September 16, 2009*

**psychology**

im a high school student and my school does not give us a book. they just give us the paper and tell us to do the best we can. i just don't understand the way the question is worded. does it want to know what kind of technology is used and how it helps or does it want to ...

*September 16, 2009*

**psychology**

help me help me help me pleaseeee!! i need to know how computer technology enchanced psychological research?

*September 16, 2009*

**psychology**

how has computer technology enhanced psychologists research?

*September 16, 2009*

**Math Functions**

If f(x)=x^2-2 and g(x)=1/(3x) (x does not equal 0), find f^-1(x) where x </ 0

*July 28, 2009*

**algebra**

Uh...that makes two of us. If I got the problem I wouldn't be asking it.

*July 27, 2009*

**algebra**

If f(x)=x^2-2 and g(x)=1/(3x) (x does not equal 0), find f^-1(x) where x </ 0

*July 27, 2009*

**English**

What is the difference between Miss and Ms.?

*April 22, 2009*

**Letter**

What do you usually write to your sponsor child? Is there a template that I can see?

*April 9, 2009*

**3rd grade-language**

Your speed will increase with each day's practice. future tense Because of snow and ice on the runway, our departure will be several hours late. present tense Could someone tell me if these two answers are correct to the sentences?

*April 2, 2009*

**5th grade math**

thanks that helps

*March 23, 2009*

**6th grade**

Why does a bouncy ball bounce in spite of gravity?

*December 11, 2008*

**math**

what is the answer to whaat kind of shoes does a frog wear? on page 165 on algebra with pizzazz

*October 20, 2008*

**science....help**

i just compared saw like whether it is 3.98

*September 21, 2008*

**science....help**

thanks ....is it like... 25g 50ml float 0.5 65g 40ml float 1.625 36g 35ml float 1.0285 and ya 1 more question what is the difference between mass and weight?

*September 21, 2008*

**science plzzz help**

and ya 1 more question what is the difference between mass and weight?

*September 21, 2008*

**science plzzz help**

thanks ....is it like... 25g 50ml float 0.5 65g 40ml float 1.625 36g 35ml float 1.0285

*September 21, 2008*

**science plzzz help**

1 what si the diference between mass and weight? 2 will the following substances float or sink in water at 3.98 degree celcius? Mass volume float & sink 25g 50ml ? 65g 40ml ? 36g 35ml ?

*September 21, 2008*

**science**

if you cut the marble into two equal pieces, what will be the density , mass and volume of one of those pieces.

*September 21, 2008*

**Mth plz...help**

is the answer no. 1?

*September 21, 2008*

**Mth plz...help**

A linear regression equation of best fit between a student's attendence and the degree of sucess in school is h = 0.5x + 68.5. the correlation coefficent, r, for these data would be (1) 0 < r < 1 (2) -1< r < 0 (3) r = 0 (4) r = -1

*September 21, 2008*

**geomatry**

Given: Isosceles trapezoid CPRQ with base R CXQ Prove: QCX is isosceles it needs to be a two column proof

*August 19, 2008*

**spanish**

hello(: ive been learning spanish; & i need some help on it.!

*August 5, 2008*

**trigonometry word problems**

2x^2-x-28=0

*May 9, 2008*

**math riddle ALGEBRA WITH PIZZAZZ**

Did you heaar about.... its the one that has cow the his who & decided in the colomn as 1 of the answers

*April 6, 2008*

**Math**

what is 3X squared minus 4X = 20 minus 15X?

*March 7, 2008*

**Math**

how do i complete 2X squared minus X minus twenty one = 0?

*March 7, 2008*