Monday

February 27, 2017
Total # Posts: 1,102

**calculus**

Find the points on the graph y = -x^3 + 6x^2 at which the tangent line is horizontal. I found -x^2 + 4 = 0 are the points [4,32]

*February 8, 2017*

**Mathematics **

A sheet metal fabricator makes boxes from sheets of steel. Each sheet of steel has an area of 1500 cm^2. 6 cm squares are cut from each corner and the edges are bent up to form a box with a volume of 3456 cm^2. What are the dimensions of each box?

*February 6, 2017*

**calculus**

limx--->3- 5/x-3 I think it is -inf but I don't know how to prove it

*February 2, 2017*

**calculus**

if limit x--->0(4-g(x)/x)=1

*February 2, 2017*

**AP Chemistry Help!!**

When you light a candle, the paraffin wax soon begins to melt. Paraffin wax is a covalent compound. Can you classify the melting of the wax as a chemical change or a physical change? If so, which is it? If you cannot classify it as chemical or physical, explain why not. ...

*January 22, 2017*

**Social Studies**

The free-soil party was a persecutor to which political party? A. Know Nothing Party B. Whig Party C. Republican Party •• D. Copperhead Party

*January 13, 2017*

**algebra**

Ashley is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices. Company A charges $95 and allows unlimited mileage. Company B has an initial fee of $75 and charges an additional $0.80 for every mile driven. For what...

*December 21, 2016*

**Spanish**

Could you please help proofread my paragraph for grammar and explain any issues thanks. An elementary bilingual teacher asks you to come to her class to talk to her students about how you used to celebrate the holidays with your family. First you want your Spanish teacher to ...

*November 7, 2016*

**physics**

What is true about microscopic properties of an object? 1) They are just small versions of the macroscopic properties. 2) They are the properties of particles that make up the object. 3) They are the average of many properties of individual particles. 4) They are overall large...

*October 29, 2016*

**physics**

Robin is standing terrified at the end of a diving board, which is high above the water. If Robin has a mass of 56 kg and is standing 1.5 m from the board's pivot point, what torque is Robin exerting on the board?

*October 27, 2016*

**special education**

Which children (not just gender) with ADHD are least likely to be identified as having it?

*October 22, 2016*

**geometry**

What are the lengths of the legs of a right triangle in which one acute angle measures 19° and the hypotenuse is 15 units long?

*October 19, 2016*

**FRENCH**

This is a poem I wrote called Automne. Are there any mistakes? Adieu, vive clarté de nos étés trop courts Au claire de l’automne Le bel automne est revenu Un parfum de mélancolie émouvante On sent tout le temps, en l’automne Nous ...

*October 9, 2016*

**French**

Yes.. but it's not exactly like the english way in which you'd read it.

*October 3, 2016*

**French**

This is a poem. I did include alliteration, imagery, metaphor or simile to add some fig. language. Can you fix any mistakes I have. Btw, this is a poem written from Cyrano's perspective to Roxane. (common french book :) 1. Oh mon amour, ma belle Roxane. 2. Sur mon cahier 3...

*October 3, 2016*

**English**

The essay question we had to do is to research the effects of loneliness and rejection and use references from the novel Frankenstein. How can I make my thesis or the concluding sentence of my introduction sound different from my classmates but at the same time, answer the ...

*October 2, 2016*

**English**

At this point he did not care if he had wronged others because he has been wronged by many of whom he thought he was close to. How can I reword this without using so many "he"? I used it five times & i'm not sure how to reword everything to make it make sense.

*October 2, 2016*

**Physics**

A soccer ball accelerates from rest and rolls 6.5 m down a hill in 3.1 s. It then bumps into a tree. What is the speed of the ball just before it hits the tree? A formula to answer this question would be fine; you don't have to solve the whole thing.

*September 28, 2016*

**4th grade math**

Write two 5-digit addends whose sum would give an estimate of 60,000

*September 11, 2016*

**Confidentiality and Allied Health**

When should information be entered into a medical record? A at the time the event occurs b at the time set aside at the end of the shift c while the physician is making rounds d when the patient is discharged from the hospital I think its a

*August 31, 2016*

**Maths**

Buzz is three times as heavy as Jessie. If Buzz is 450g heavier than Jessie what is the weight of Buzz in grams?

*July 26, 2016*

**Math**

Mrs. Cord's class , 11 children Owens pets. There are 23 children in the class. What is the ratio of pets owners to the whole class?

*June 26, 2016*

**Chem Please HELP**

A 15.0mL sample of an H2SO4 solution is titrated with 24.0 mL of a 0.245 Molarity NaOH solution. What is the molarity of the H2SO4 solution?

*April 21, 2016*

**Math**

The difference between two numbers is 6. Their product is 2,016. What are the two numbers.

*April 18, 2016*

**Shakespeare**

I just need help coming up with a thesis for a paper. We are writing about the different types of love portrayed in A Midsummer Night's Dream....Forced, romantic, and frienship love. Any help with a thesis for a two page paper on the different types of love portrayed?

*April 9, 2016*

**Math**

Let d(n) represent the number of diagonals of a polygon of n sides. Here is a table of values of d(n). n 3 4 5 6 7 8 9 10 11 d(n)0 2 5 9 14 20 27 35 44 Find a polynomial formula for d(n) in terms of n

*February 21, 2016*

**Physics**

In the figure, the two blocks are attached by a massless rope over a frictionless pulley, and block M1 slides on the table without friction. The masses of the blocks are: M1 = 8.10kg and M2 = 3.90kg. Calculate the tension in the rope. ( g = 9.80 m/s2)

*February 14, 2016*

**physics 2 HELP PLEASE!!**

Can someone help break this down.. Please tell me if what I identified is so far correct. Also what equations should I use??? x1= 10m x2=? v1= 1.2 m/s v2=? a= -9.8 m/s^2 t= ? 1.) a diver runs horizontally with a speed of 1.2 m/s off a platform that is 10.0 meters above the ...

*February 3, 2016*

**Physics**

Consider a plane with a velocity relative to the air of 195 m/s in a westerly direction. If the wind has a speed relative to the ground of 53 m/s (in an easterly direction), how long does it take for the plane to travel from one city to another that is due west of the first by...

*February 3, 2016*

**Algebra**

B=(1/4)m(q+k) Solve for q

*February 2, 2016*

**Chemistry**

Using calculations, determine how you would make a 525 ml pg a 0.50 M solution of Cl- ions using CaCl2. I am unsure how to do this question, I was going to use C1V1=C2V2 but with this I would be missing the first part of the equation. If that is the case, would I assume the ...

*February 2, 2016*

**Language Arts**

Thanks Ms. Sue!

*January 6, 2016*

**Language Arts**

Hmmm, no, I'm weighing in more with b.

*January 6, 2016*

**Language Arts**

Yeah, I know, it seems like an idiotic question... so sorry.

*January 6, 2016*

**Language Arts**

Choose the meaning that matches the word in quotation marks. Before the debate began, the speaker's heart "fluttered" with nervous anticipation, and he breathed deeply to steady his nerves. a. flapped quickly b. beat rapidly c. waved steadily d. moved nervously I...

*January 6, 2016*

**math**

Ronnie is thinking of a number. He says that he gets the same result when he multiplies his number by 2 as when he adds 5 to his number. What is the number?

*January 4, 2016*

**math**

8:9:18 8 = 184 what's 9 and 18?

*November 17, 2015*

**chem 130**

what mass of sodium hydroxide will be required to neutralize completely 1.60x10^23 molecules of HCl?

*November 17, 2015*

**physics**

Three people attempt to hold a heavy sign in place. Abby pulls directly upwards (in the middle) with 140 N of force. Joe is ob Abby's left and pulls at a 30.0° to Abby's rope with a force of 180 N. Henry is on Abby's right and pulls at a 30.0° to Abby's...

*November 8, 2015*

**science**

urgent

*November 4, 2015*

**science**

what are some family characteristics for Halogens

*November 4, 2015*

**Chemistry**

The question says: A sample of helium is collected by displacing 182 mL of water. The pressures of the gas and the atmosphere are equalized, using the method described in this experiment. The atmospheric pressure is 738 mmHg. The temperature of the water and that of the gas ...

*October 25, 2015*

**Chemistry**

arrange CO2, N2O2, CaO, SiO2, and Ga2O3 in order of increasing acidity

*October 18, 2015*

**Math Calculus**

Postal regulations specify that a package sent by certain shipping methods may have a combined length and girth of no more than 99 inches. Find the dimensions of a CYLINDRICAL package with the greatest volume that may be sent by this shipping method. HINT* the length plus the ...

*October 10, 2015*

**math**

(6.0 x 10^5) x (3.0 x 10^4)= A. 18 x 10^20 B. 18 x 10^9 C. 1.8 x 10^20 D. 1.8 x 10^10 2. (5 x 10^-2) divided by (2 x 10^3) = A. 2.5 x 10^-5 B. 2.5 x 10^-1 C. 25 x 10^1 D. 25 x 10^2 3. (2.56 x 10^6) times (3.56 x 10^2)= A. 9.1136 x 10^12 B. 91.138 x 10^8 C. 9.1136 x 10^8 D. 91....

*October 8, 2015*

**Chemistry**

Lets say you have 25 ml of a 3.25M copper(II) chlorate solution. How many moles of copper (II) chlorate would be in the solution and how many moles of the copper(II) ion would be in the solution?

*September 22, 2015*

**Precalculus**

A vehicle has an engine that is connected directly to a gear box. In the highest gear, a 2 inch radius gear is turning a 14 inch diameter gear. This gear is connected to the drive shaft. The drive shaft attaches to a wheel and a tire that measures 2 and 1/3 feet in diameter. ...

*September 14, 2015*

**physics**

Two students are on a balcony 21.4 m above the street. One student throws a ball ver- tically downward at 15.6 m/s. At the same instant, the other student throws a ball verti- cally upward at the same speed. The second ball just misses the balcony on the way down. What is the ...

*September 9, 2015*

**geometry**

so its 1.2?

*September 8, 2015*

**geometry**

Point Y lies on segment XZ. If XY = 2.8 and XZ = 4.0, what is the length of segment YZ?

*September 8, 2015*

**Physics**

A car starts from rest and travels for 5.0 s with a steady acceleration of magnitude 1.5 m/s2. the driver then applies the brakes for 3.0 seconds causing a steady deceleration of magnitude 2.0 m/s2. How fast is the car going at the end of the breaking period?

*August 25, 2015*

**algebra**

george drove to two town at 60 miles per hour and drove back home at 30 miles per hour. what is the distance to town if the whole trip took 9 hours hrs

*July 30, 2015*

**alg**

george drove to two town at 60 miles per hour and drove back home at 30 miles per hour. what is the distance to town if the whole trip took 9 hours hrs

*July 30, 2015*

**Geo**

Which of the following is not a valid reason in a mathematical proof?

*July 7, 2015*

**Precalc**

Find a rectangular equation for the plane curve defined by the parametric equations. x = sin(theta) y = 3cos(theta)

*June 10, 2015*

**IT**

Why can you not install the server migration tools to the server running windows server 2008 R2 using the add roles and features wizard on your server running windows server 2012 R2?

*May 30, 2015*

**IT**

Why can you not install the server migration tools to the server running windows server 2008 R2 using the add roles and features wizard on your server running windows server 2012 R2

*May 30, 2015*

**mathmatics**

that would be 70

*May 17, 2015*

**mathmatics**

how would you estimate?

*May 17, 2015*

**mathmatics**

A jacket costs $94.95. It is on sale for 30% off. Estimate the sale price.

*May 17, 2015*

**math**

is it 66.46?

*May 17, 2015*

**Math**

What is “a, b and c” in this hyperbola? (y-2)^2/5-(x-3)^2/6=1

*May 16, 2015*

**Math**

What is “a, b and c” in this ellipse? x^2/9+y^2/4=1

*May 16, 2015*

**Algebra**

bicyclist rides 30 miles against a wind and returns 30 miles with the wind. his average speed for the return trip is 5mph faster. how fast did the cyclist ride against the wind if the total time of the trip was 5 hours

*May 13, 2015*

**Calc/Precalc**

Thanks so much. Could you help me with 2 & 3?

*May 7, 2015*

**Calc/Precalc**

Find the derivatives of 1. ln[(2x^3⋅2e^x)] 2. xy = cot(xy) 3. y = cos(x^3 + 27) I don't really know where to start with these. The answer is (3+x)/(x) for the first, y/-x for the second, and 35. -3x^2 sin(x^3 + 27) but I have no idea how they got there. Thank you!

*May 7, 2015*

**Chemistry help**

1. Find the pH when there are 0.034 moles of h+ in a liter of solution 2. Find the pH when there are 1.6x10^-7 moles of h+ in 500 ml of solution Please help me on these only problems im struggling with, thank you!

*May 4, 2015*

**Dance**

Cute drill team squad names that start with H? I need help!

*May 3, 2015*

**ALGEBRA**

A service that repairs TV's and sell maintenance agreement for $9 a yr. the average cost for repairing a TV is $39 and 3 in every 100 people who purchased maintenance agreements have TV that require repair Find the services expected profit per maintenance agreement

*April 30, 2015*

**Chemistry**

What is the molality of a solution of aluminum nitrate that contains 77.0 g of Al(NO3)3 dissolved in 120.0 g of water? Use molar masses with at least as many significant figures as the data given.

*April 27, 2015*

**Precalc**

Find the derivative of: f(x) = 1/(3x)^4 + 3x^4 Determine the points, if any, at which the function has a horizontal tangent line y = 5x^3 - 15x^2 y = 2x^3 + 6x^2 thank you!

*April 15, 2015*

**criminal justice**

In 1970, the District of Columbia passed the first __________ statute which authorized denial of bail to "dangerous" persons charged with certain offenses for up to 60 days.

*April 13, 2015*

**Criminology**

One analysis of nearly 6,000 police-citizen encounters revealed that police officers were more likely to arrest when the victim was __________ and the suspect was__________. Im trying to do this study guide and I cant find these questions Can someone help!

*April 13, 2015*

**Criminal Justice**

As far back as __________, researchers began to explore possible racial / ethnic bias in sentencing.

*April 13, 2015*

**ELA**

Personification is a figure of speech in which a thing, an idea or an animal is given human attributes. The non-human objects are portrayed in such a way that we feel they have the ability to act like human beings. For example, when we say, “The sky weeps” we are ...

*April 13, 2015*

**Statistics**

The distribution of weekly salaries at a large company is reverse J-shaped with a mean of $1000 and a standard deviation of $370. What is the probability that the sampling error made in estimating the mean weekly salary for all employees of the company by the mean of a random ...

*April 13, 2015*

**statistic**

Suppose a 95% confidence interval for the mean salary of college graduates in a town in Mississippi is given by [$36,080, $43,920]. The population standard deviation used for the analysis is known to be $12,000. a. What is the point estimator of the mean salary of all college ...

*April 12, 2015*

**Math (Help please)**

Hi! I'm a little confused on what I'm suppose to do for this problem. Can someone help? Thanks! Directions: Which element would be in Row 3, Column 1? [1 5 6 -2 7 11 4 0 -1 2 9 7]

*April 9, 2015*

**Math**

Find the value of the following matrix's. 1.) [-5 2 -8 -7] 2.) [3 -4 7 9]

*March 31, 2015*

**Precalc**

I need help with logs. Thank you! Evaluate. 1. log base(3) 25 to the cubed root Condense. 2. 1/3logx + 2logy^3 -3log(z+1)

*March 25, 2015*

**last question!! Criminology**

Thanks so much for all the help! :)

*March 22, 2015*

**last question!! Criminology**

. The view that a defense attorney's main concern is looking out for the client's interest; that nothing matters more to them than securing favorable plea agreements or, ideally, acquittals, is described as characterizing the defense attorney as a: A) "jack-of-all...

*March 22, 2015*

**Criminology**

. The largest category of convictions for felonies is: A) drug offenses. B) violent crimes. C) sexual crimes. D) property crimes. I think its A Im not sure though... I tried looking it up in my notes and book. I am trying! Believe me.

*March 22, 2015*

**Criminal Justice**

I couldn't find it in my text. The ones I am asking I can't find. I have read my chapter. All 5 of them.

*March 22, 2015*

**Criminal Justice**

It could be but I hardly hear of any woman murdering.

*March 22, 2015*

**Criminal Justice**

Males are arrested at rates much higher than females for the following crimes except: A) murder. B) rape. C) fraud. D) weapon offenses. Would the answer be A?

*March 22, 2015*

**Defense**

. Which of the following is not an example of an ethical dilemma a defense attorney may face? A) the prosecutor's winning record. B) client perjury. C) defense receipt of physical evidence. D) a confession in confidence. Would it be A?

*March 22, 2015*

**Physics**

C stands for degrees Celsius

*March 22, 2015*

**Physics**

A 51 kg block of metal has specific heat of 222 j/kg c. how heat energy must be applied to the block of metal to raise its temperature from 10 c to 22 c?

*March 22, 2015*

**Math**

Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y < 6 x > 0 ...

*March 21, 2015*

**Math**

Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y < 6 x > 0 ...

*March 21, 2015*

**Spanish Homework**

Thank you so much for you help! I get it now. :)

*March 20, 2015*

**Math**

Hi! I wanted to know how you would sketch the graph of this system of inequalities. Math problem: 2x2 + y ≥ 2 x ≤ 2 y ≤ 1

*March 14, 2015*

**Math Check**

Hi! Can someone check my answers? Thanks! Directions: Solve each system by using the elimination method. Make sure to write your answer in (x,y) form. 1.) 3x-5y=2 2x+5y=13 2.) 3x+11y=4 -2x-5y=9 My answers: 1.) (3,7/5) 2.) (-17,5)

*March 4, 2015*

**Chemistry**

A 45.4 grams of a gold metal sample was heated with the amount of energy of 228 J. Which of the following would the most plausible temperature change of the gold sample? The specific heat of gold is 0.131 J/g.oC. 12.8 oC to 38.3 oC 24.4 oC to 81.6 oC 23.8 oC to 62.1 oC 38.3 oC...

*February 28, 2015*

**Math**

Look for the angle (θ) between the vectors. Remember to round your answer to the nearest tenth. a.) u=<3,2> v= <4,0> b.) u = 2i - 3j v = i - 2j

*February 24, 2015*

**Math**

Hi! So I asked about this question earlier and I've been trying to solve it with the directions I was given by someone before, but, I'm still confused and keep getting weird numbers. Can someone help me with this? Directions: Find the angle, θ, between the vectors...

*February 20, 2015*

**Math**

Hi! Can someone help me with these? Thanks a bunch! :) 1.) Find the dot product. <0, 3> ∙ <4, -2> 2.) Find the dot product of u and v. u = <-4, 1> v = <2, -3>

*February 20, 2015*

**Math**

Hi! Can someone help me with these? Thanks a bunch! :) 1.) Find the dot product. <0, 3> ∙ <4, -2> 2.) Find the dot product of u and v. u = <-4, 1> v = <2, -3>

*February 19, 2015*