Friday

September 4, 2015
Total # Posts: 819

**algebra**

simplify the expression -6+i/-5+i Could someone explain the steps?
*November 3, 2012*

**algebra**

Use the quadratic formula to solve the equation. -4x^2-3x+2=0 Can someone please explain
*November 1, 2012*

**algebra**

I got 14.86 yards not sure if right
*November 1, 2012*

**algebra**

A landscaper is designing a flower garden in the shape of a trapezoid. She wants the shorter base to be 3 yards greater than the height and the linger base to be 7 yards greater than the height. She wants the area to be 295 square yards. The situation is molded by the equation...
*November 1, 2012*

**economics**

can someone explain the relationship between consumer expectations and economic performance? Could use some help.
*October 31, 2012*

**algebra**

Thank you for explaining problems so that one can understand. Very much appreciated.
*October 31, 2012*

**algebra**

Rewrit the equation in vertex form. Name the vertex and y-intercept. y=3/5^2+30x+382 I need some help do not understand these type of problems.
*October 31, 2012*

**algebra**

Still confused, but I'll try another one and see if I get it. Thank you.
*October 31, 2012*

**algebra**

Solve the quadratic equation by completing the square. -3x^2+9x=1 Not sure how to do these, if someone could expplain.
*October 31, 2012*

**algebra**

The y=4.8x^2+25x+24 was correct answer, but I'm not sure how you got that.
*October 29, 2012*

**algebra**

You throw a rock off the balcony overlooking your backyard the table shows the height of the rock at different times use quadratic regressin to find a quadratic model for this data. time 0 1 2 3 4 5 height 24 44.2 54.8 55.8 47.2 29 would someone explain this to me had a ...
*October 29, 2012*

**algebra**

Not sure where I made my mistake.I lost myself after the 4a-2b+5=0, 16a+4b+5=-59. Could you please clarify what I need to do next.
*October 29, 2012*

**algebra**

What is the equation in standard form of a parabola that models the values in the table? x -2 0 4 f(x) 1 5 -59 Please help.I have somewhat of an idea a(-2)^2+b(-2)+c c=1 a(0)^2+b(0)+c= c=5 a(4)^2+b(4)+c c=-59 4a+2b+c=1 0a+0b+c=5 16a+4b+c=-59 4a-2b+5=0 16a+4b+5=-59 4a-2b+5-5=0-...
*October 29, 2012*

**algebra**

Thanks for helping I have posted two other questions if you might be able to help
*October 29, 2012*

**algebra**

what is the equation in standard form of a parabola that contain the following points? (-2,-20),(0,-4),(4,-20) Please Help
*October 29, 2012*

**algebra**

Okay thank you
*October 29, 2012*

**algebra**

Which steps transform the graph of y=x^2 to y=-2(x-2)^2+2. a) translate 2 units to the left translate down 2 units stretch by factor 2 b)translate 2 units to the right translate up 2 units stretch by the factor 2 c)reflect across the x-axis translate 2 units to the left ...
*October 29, 2012*

**algebra**

sorry was y we have to show our steps when figuring problems thank you
*October 29, 2012*

**algebra**

y=a(x-h)^2+k y=a(x+4)^2+7 8=a((x-3)+4)^2+7 8=a(1)^2+7 1=a 4=(x+4)^2+7 Is this right?
*October 29, 2012*

**algebra**

I'm not sure what your saying
*October 29, 2012*

**algebra**

Suppose a parabola has a vertex (-4,7) and also passes through the point (-3,8) Write the equation of the parabola in vertex form. f(x)=a(x-h)^2+k I believe h=-4 k=7 Not sure what to do from here.
*October 29, 2012*

**algebra**

A biologist took a count of the number of migrating waterfowl at a particular lake, and recounted the lakes population of waterfowl on each of the next six weeks. Find the function that models the data as a function of x, the number of weekx. Use the model to estimate the ...
*October 25, 2012*

**Chem**

What mass of lithium (in g) is required to react completely with 58.3 mL of N2 gas at STP?
*October 23, 2012*

**physics**

A child has a temperature of 101◦F. If her total skin area is 13 m2, find the en- ergy loss per second due to radiation, assum- ing the emissivity is 1. The Stefan-Boltzmann constant is 5.6696 × 10−8 W/m2 · K4 . (As- sume the room temperature is 70&#...
*October 21, 2012*

**physics**

A child has a temperature of 101◦F. If her total skin area is 13 m2, find the en- ergy loss per second due to radiation, assum- ing the emissivity is 1. The Stefan-Boltzmann
*October 21, 2012*

**algebra**

Could someone please explain this question to me.
*October 20, 2012*

**algebra**

You live near a bridge that goes over a river. The underside of the bridge is an arch that can be modeled with the function y=-0.000475x^2+0.851x, where x and y are in feet. How high above the river is the bridge(the top of the arch)? How long is the section of bridge above ...
*October 20, 2012*

**algebra**

Thank you.
*October 20, 2012*

**algebra**

what is the vertex form of the equation y=x^2+4x-3 Could someone please explain.
*October 20, 2012*

**algebra**

Identify the maximum or minimum value and the domain and range of the graph of the function y=2(x-3)^2-4 Can someone please help me.
*October 17, 2012*

**algebra**

Oh thank you for explaining
*October 17, 2012*

**algebra**

Identify the vertex and the axis of symmetry of the graph functio y=3(x+2)^2-3 Could someone please help me
*October 17, 2012*

**Physical Science**

Yes, based on Newton's Third Law, they both exert an equal and opposite force on each other.
*October 9, 2012*

**english**

How would you briefly describe Poe's requirement for the short story genre?
*October 9, 2012*

**english **

How would you briefly describe what the lerary movement Romanticism valued?
*October 9, 2012*

**Geometry**

If a regular pentagon has sides of four feet, what is the length from the vertex to the midpoint of the opposite side
*September 30, 2012*

**phy101**

make correction, The orbital radius of a satellite in a geosynchronous orbit is 4.2x10^7 m.)
*September 26, 2012*

**phy101**

Calculate the velocity needed for an object starting at the Earth's surface to just barely reach a satellite in a geosynchronous orbit. Ignore air drag and assume the object has a speed of zero when it reaches the satellite. (The orbital radius of a satellite in a ...
*September 26, 2012*

**algebra**

The office manager of a small office ordered 120 packs of printer paper. Based on average daily use, she knows that the paper will last about 40 days. What graph represents this situation? How many packs of printer paper should the manager expect to have after 10 days? Not ...
*September 18, 2012*

**algebra**

Can someone please try and see if you understand what I'm asking. Says to use vertcal line test to determine which graph represents a function. one line is straight up and down a complete circle(which i think) an complete line from an angle line from an angle half way and ...
*September 18, 2012*

**algebra**

center dot x=0 line up 1 to the left of y x=-2 line up to 2.5 to the left of y x=-3 line up to 4.5 to the right of y x=2 line up to 2.5 to the right of y x=3 line up to 4.5 Does this help?
*September 18, 2012*

**algebra**

above the x axis a dot on the -2 line up to 2.5, and another dot on -3 line up to 4.5, thats on left side, then right side a dot on 2 line up 2.5, and another on line 3 up to 4.5. Not sure how to figure this is someone is willing to help. possible answers; domain: {–3, &#...
*September 18, 2012*

**Science**

Two blocks (one 10kg; other 5 kg) are connected by a string that runs over the surface of a frictionless table. 1. Are the masses moving or stationary? 2. Whats the accelaration of the 10 kg mass 3. whats the acceleration of the 5 kg mass? if the string is cut when 5 kg mass ...
*September 17, 2012*

**math **

a cars tank can hold 17 gallons of gas on the freeway and i get 28 miles per gallon and i drive 32 miles whats the amount of gas in my tank
*September 12, 2012*

**math**

Diver jump from cliff at heights of 85 to 115 feet above the water. After t seconds, a diver has fallen 16t2 feet. Does a diver jumping from a height of 85 feet reach the surface of the water within 2 seconds?
*August 28, 2012*

**health**

You need to watch your mouth Ms sue and how you talk to these kids keyword their just kids! calm your ass down, your ass be wrong half the time anyway illiterate ass!
*August 14, 2012*

**math**

alex has twice as much money as jennifer. jennifer has $6 less than shannon. together they have $54. How much money does each have?
*August 6, 2012*

**math**

well, you can use the Excel to solve this question. first, you can calculate two FV. then using the result of fv 25404.31-23073.15=2331.16 so, he can pay the balloon payment and will spare $2331.16
*July 29, 2012*

**algebra**

WRITE THE SLOPE INTERCEPT FORM OF THE LINE SHOWN IN THE GRAPH. WHICH IS (5,-7)(4,7) PLEASE SHOW WORK
*July 15, 2012*

**ALGEBRA**

WRITE THE SLOPE INTERCEPT FO (5,-7)(4,7) AND SHOW WORK
*July 15, 2012*

**ALGEBRA**

GIVEN THE LINEAR EQUATION Y=4/3X+1 FIND THE Y COORDINATES OF THE POINTS (-6), (-3), AND(6). PLOT THOSE POINTS
*July 15, 2012*

**Chemistry**

X=\MX=\MX=\M What is this?
*July 3, 2012*

**economics**

a type of economic goods
*June 18, 2012*

**Health care**

Which has a greater influence on a person’s health: individual choices and actions (micro perspective) or community policies and resource availability (macro perspective)?
*June 7, 2012*

**Chemistry**

The rate constant of a particular reaction is halved when the temperature is decreased from 323 K to 273 K. Calculate the activation energy for the reaction.
*May 21, 2012*

**history**

my name was never hayden!!!!!
*May 16, 2012*

**history**

please please please please please help me mrs.sue!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! please
*May 16, 2012*

**history**

I am SOOOOOO STRESSED OUT
*May 16, 2012*

**history**

i am gonna pull my hair out one by one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*May 16, 2012*

**history**

i dint have any choices
*May 16, 2012*

**history**

Confucius thought that if people showed respect towards _________ they will also show respect in _________.
*May 16, 2012*

**Physics**

help!!!
*May 12, 2012*

**Physics 121**

Please do show you did it and which formula did you use. Thanks very much.
*May 5, 2012*

**Physics 121**

The pulley has an inner radius of 0.35m and an outer radius of 0.65m. It has a mass of 1.8kg. A string wrapped around the inner part of the pulley is fastened to the ceiling. A second string wrapped around the outer part of the pulley is fastened to a block. Determine the mass...
*May 5, 2012*

**language arts **

I have an assignment where it says to write a sonnet with 14 lines but they also say to have 14 syllables per line. I thought it was 10 syllables per line. Can anyone help ?
*May 3, 2012*

**Algebra**

Will you explain the concept of "i" in algebra? Problem: 4+2i/4-2i
*April 24, 2012*

**Chemistry **

Enough of a monoprotic acid is dissolved in water to produce a 0.0169 M solution. The pH of the resulting solution is 2.68. Calculate the Ka for the acid.
*April 21, 2012*

**Chemistry help**

A substance with pH of 3 is 10 times as Acidic as a substance with a pH of 4. *****or******* A substance with a pH 3 is twice as acidic as a substance with a pH of 4.
*April 14, 2012*

**Chemistry**

1. Balance the equation. 2. mols NaOH = M x L = ? 3. Convert mols NaOH to mols H2SO4. 4. M H2SO4 = moles H2SO4/L H2SO4. 5. 2 moles I believe
*April 12, 2012*

**Chemistry**

NaOH+H2SO4-> H2o+Na2SO4? How many moles of NaOH required to neutralize 1 mole H2SO4?
*April 12, 2012*

**Chemistry**

Which of the following is correct? A)A substance with pH of 3 is 10 times as Acidic as a substance with a pH of 4. B)A substance with a pH 3 is twice as acidic as a substance with a pH of 4.
*April 12, 2012*

**Science**

25 cm of 1.0 mol dm− NaOH is added to 25 cm of 1.0 mol dm− HCl. The temperature rise is 6¢XC. Which reactants will also give a temperature rise of 6¢XC? A. 25 cm of 2.0 mol dm− NaOH and 25 cm of 2.0 mol dm− HCl. B. 50 cm of 1.0 mol dm− ...
*April 9, 2012*

**Chemistry**

25 cm of 1.0 mol dm− NaOH is added to 25 cm of 1.0 mol dm− HCl. The temperature rise is 6¢XC. Which reactants will also give a temperature rise of 6¢XC? A. 25 cm of 2.0 mol dm− NaOH and 25 cm of 2.0 mol dm− HCl. B. 50 cm of 1.0 mol dm− ...
*April 9, 2012*

**Chemistry**

How do you convert Ounces to Grams longhand?
*March 22, 2012*

**Statistics**

A researcher predicts that watching a film on institutionalization will change students’ attitudes about chronically mentally ill patients. The researcher randomly selects a class of 36 students, shows them the film, and gives them a questionnaire about their attitudes. ...
*March 5, 2012*

**math**

x over 5,2x over 15,3x over 45,12 over 135 Find the value of x in the above sequence
*March 1, 2012*

**algebra**

6) Write with positive exponents: [ 3-3 a-2 b5 c-3 d-4]
*February 23, 2012*

**algebra**

6) Write with positive exponents: [ 3-3 a-2 b5 c-3 d-4]
*February 23, 2012*

**Science/geology **

Why does the Red River flow north, and the Mississippi River flow south?? I think it has something to do with elevation.. but I'm not sure.
*February 22, 2012*

**Science/geology**

@ Ms.Sue. I know the map directions have to influence on how the river flows... that's not what I'm asking.
*February 22, 2012*

**Science/geology **

Why does the Red River flow north, and the Mississippi River flow south??
*February 22, 2012*

**math**

In the annual walkathon, Lee jogs for 5 3/4 miles more than he walks. If he travelled a total of 15 miles, how many miles did he walk
*February 21, 2012*

**Math**

Find the smallest values of a and such that 32a = 23b.
*February 17, 2012*

**science**

A force of 2000N is used to push a box up an inclined plane that is 5m long. If the 100 kg box is raised to a height of 8m, how much work is done against friction? Let g equal 10 m/s2; I need to know how to set the problem up
*February 12, 2012*

**physics**

a force of 625 N is used to move an object with 1000N resistance up inclined plane of 2.0 m.What is the length of the inclined plane
*February 12, 2012*

**physics**

Calculate the height of the brain above the heart for an animal with an additional blood pressure of 498 mmHg in the heart. Use ρ = 1.057 g/cm3 for the density of blood. ???????
*February 6, 2012*

**spanish**

¡Gracias, Senora! Usted siempre es tan amable en ayudarnos.
*February 5, 2012*

**spanish**

Thank you--I am sorry for the confusion! Actually the assignment is a bit confusing as to what the end product should be. I am to summarize an actual conversation. I interviewed a friend about her plans for after she finishes school this May. Then I need to write it up but in ...
*February 5, 2012*

**spanish**

I want to write sentences about asking people questions. The questions have to do with the future, so in some sense I guess they are hypothetical. I want to know if that means that I use the (imperfect) subjunctive as hypotheticals--I think so, but I want to make sure. For ...
*February 5, 2012*

**Math**

A box contains 3 red marbles, 6 blue marbles, and 1 white marble. The marbles are selected at random, one at a time, and are not replaced. Find the probability. P(red and white) Please help me
*February 2, 2012*

**Algebra**

I know that I'm suppose to find the y, but I don't know how.
*January 29, 2012*

**Algebra **

Find the value of y so that the line passing through the two point has the given slope. (2,y) (4,5) m=5 (m=slope) how do you do this?
*January 29, 2012*

**History**

Lauren- yes she answered my first one, the questions are different if you read them carefully.
*January 18, 2012*

**History**

How did the writing/poetry influence people in the harlem renaissance?
*January 18, 2012*

**History**

Why was the harlem renaissance important for poets and writers?
*January 18, 2012*

**college algebra**

Thanks anyway, I found the answer, the -1 is to be multiplied across ALL factors including the numbers on the other side of the =. See ya
*January 18, 2012*

**college algebra**

In a radical equation if the negative symbol is in front of the radical should I use -1 to factor out the negative power? And if so do I factor across the = doing BOTH sides? Or just the side the radical is on? Thanks anyone, I've been out of school for 12 years so it is a...
*January 18, 2012*

**algebra**

WHAT COULD YOU DO TO THE EQUATION 4xY=32 TO KEEP BOTH SIDES EVEN
*January 11, 2012*

**Calculus**

Thanks
*January 7, 2012*

**Calculus**

Evaluate the indefinite integral integral sec(t/2) dt= a)ln |sec t +tan t| +C b)ln |sec (t/2) +tan (t/2)| +C c)2tan^2 (t/2)+C d)2ln cos(t/2) +C e)2ln |sec (t/2)+tan (t/2)| +C
*January 7, 2012*