Sunday

August 30, 2015
Total # Posts: 195

**Math**

Thank you!!!
*August 25, 2015*

**Math**

Write the expression as a single fraction and simplify. 3/a + 3/b Is this when you cross multiply and get 3a + 3b? Except the answer has to be a fraction so I am not sure.
*August 25, 2015*

**probability **

Please help me solve this problem step by step pleaseeee! The probability that an archer hits the target is p= 0.8, so the probability that he misses the target is q = 0.2. It is known that in this situation the probability that the archer hits the target exactly r times in n ...
*August 12, 2015*

**Algebra**

Can anybody help me on this problem for my Algebra 2 class, I am having a hard time tyring to solve it step by step. The probability that an archer hits the target is p = 0.8, so the probability that he misses the target is q = 0.2. It is known that in this situation the ...
*August 12, 2015*

**Algebra**

I need help step by step please I keep getting a wrong answer of 252? Find the 24th term in the expansion of (a + b)^ 25
*August 12, 2015*

**Algebra**

I need help step by step please I keep getting a wrong answer of 252? Find the 24th term in the expansion of (a + b)^ 25
*August 11, 2015*

**Algebra**

Can anybody help me on this problem for my Algebra 2 class, I am having a hard time tyring to solve it step by step. The probability that an archer hits the target is p = 0.8, so the probability that he misses the target is q = 0.2. It is known that in this situation the ...
*August 11, 2015*

**Calculus**

A strong swimmer is one mile off shore at point P. Assume that he swims at the rate of 3 mile per hour and walk at the rate of 5 miles per hour. If he swims in a straight line from P to R and then walks from R to Q, how far should R be from Q in order that he arrives at Q in ...
*June 13, 2015*

**Calculus**

A wire 17 inches long is cut into two pieces. One piece is bent to form a square and the other is bent to form a rectangle that is twice as wide as it is high. How should the wire be cut in order to minimize the total area of the square and rectangle?
*June 13, 2015*

**Logs **

log (sqrt4(x^16 / y^4)) What is the value of the expression when logx=8 and logy=1? My work: x=10^8 y=10 I tried to plug these in but my calculator but it said "overflow." Is there an easier way to do this?
*May 31, 2015*

**Math**

(-3,5) (-2,-6) I do not understand equation of a line
*March 18, 2015*

**Math**

equation of a line (-3,5) (-2,-6) can you help with this exercise
*March 16, 2015*

**physics**

calculate the linear speed of a point on the record at the beginning and the end of the record that rotates at 33rev/min r1=7cm,r2=15cm
*March 10, 2015*

**physics**

Please answer
*March 10, 2015*

**United states history**

What similarities do you see between the United States today and the United States of the past? What issues and problems do we continue to grapple with? What successes do we share with Americans in the past? I want to find something now in united states that was similar to the...
*December 8, 2014*

**math**

what is 82 over 100 in simplest form?
*November 17, 2014*

**US Gov't**

Which Roman contribution to political theory was adapted by the Founding Fathers?
*November 5, 2014*

**Geometry**

P->P'(-8,-3) for the glide reflection where the translation is (x,y)->(x,y-5) and the line reflection is x=-5. what are the coordinates of P? (-8,-8) (-8,2) (-2,-3) (-2,2)
*October 29, 2014*

**English**

Of Mice an Men
*October 13, 2014*

**English**

1. Why does George try to prevent Lennie from playing with small animals? (1 point) He doesn't want Lennie to have a pet until he proves he can keep out of trouble. He is worried that Slim will be angry if Lennie plays with the puppies. He is embarrassed by Lennie's ...
*October 13, 2014*

**Chemistry**

Weight of the Rock Salt Sample: .343 (g) Weight of the Rock Salt Solution: 9.910 (g) Trial #1 Trial #2 Trial #3 Weight of Rock Salt Solution Delivered (g) : .89 1.17 .786 Weight of AgNO3 Solution Delivered (g) : 1.53 .548 .786 Concentration of AgNO3 : 4.70e-4 (moles of AgNO3/g...
*October 4, 2014*

**Physics**

I don't know if my answers are right. D: 1)Why is a time interval always positive? I'm not really sure but I wrote down something with vectors and scalars. 2)If the average acceleration of a car is zero in a given time interval, what can you tell about the displacement...
*October 1, 2014*

**Physics**

Thank you guys so much ! ^^
*October 1, 2014*

**Physics**

Little Timmy falls down a well and hits the water 1.5s later. Determine the distance from the top of the well to the water below. Just an equation would be fine. Thanks in advance.
*October 1, 2014*

**Algebra 2**

Nvm, I got it >u<
*October 1, 2014*

**Algebra 2**

I need to use zero product property on these equations and I just need a few examples to get myself started on the other problems since I don't understand it at all. :c Help is appreciated. Thanks in advance. f(x)=x^2+8x+12 g(x)=6x&2+20x-16
*October 1, 2014*

**Physics**

Starting from rest, Mr.M's bus achieves a velocity of 25 m/s in a distance of 1.0 km. Find the time and the acceleration. I don't know which formula to use. Delta T = Vf - Vi / Aavg ?
*September 23, 2014*

**Physics**

Thank you so much! You didn't have to solve it for me, I only needed the formula, but thanks a lot!^^
*September 23, 2014*

**Physics**

A car enters the freeway with a speed of 7.2 m/s south and accelerates uniformly for 4.2 km in 4.0 min. How fast (in m/s) is the car moving after this time? I only need the formula. My teacher gave us a list but did not tell the class which equation is for which. Help please.
*September 23, 2014*

**Chemistry**

What is the molarity of HCL if it takes 16.5 mL of 0.100 M NaOH to titrate 10.0 mL of HCl? HCl + NaOH -> H2O + NaCl molarity = moles of solute/liters of solution
*September 18, 2014*

**AP Calculus**

Find an equation of all tangent lines for the curve x^2-xy+y^2=16 x=-2 2x-(xy'+y(1))+2yy'=0 2x-xy'+y+2yy'=0 y'(-x+2y)=-2x-y y'=-2x-y/-x+2y y'=-2(0)-y/-(0)+2y y'=-y/2y Not sure what to do now?
*September 14, 2014*

**Operating Systems**

Given that main memory is composed of only three page frames for public use and that a seven-page program (with Pages a, b, c, d, e, f, g) that requests pages in the following order: a, c, a, b, a, d, a, c, b, d, e, f. Using the FIFO page removal algorithm, indicate the ...
*September 4, 2014*

**physics**

To estimate how high the cliff is you throw a rock off the edge and 7.8 s later you hear the rock hit the ground. The speed of sound is 330 m/s. Ignoring air resistance how high is the cliff?
*September 1, 2014*

**math**

why is when you equal Pythagorean Theorem the c does nt have the squard
*August 27, 2014*

**Math**

That helped a lot Steve. Thank you.
*June 11, 2014*

**Math**

The president of Texas state University makes three times as much money as one of the department heads. If the total of their salaries is 290,000, find each worker's salary.
*June 11, 2014*

**Algebra**

thanx damon :D
*June 2, 2014*

**Algebra**

Simplify: b. 4√10-√10
*June 2, 2014*

**Algebra**

thank you peeps
*June 2, 2014*

**Algebra**

What are the solutions to the system? (Hint: graphing is the easiest!) y = x2 + 2x - 45 y = -3x + 5
*June 2, 2014*

**math for me!!!!!!**

cross multiply
*June 2, 2014*

**Algebra**

lol damon answers all my question soooo thanx very much XD
*June 2, 2014*

**Algebra**

Use the Zero Product Property to solve the equation: -3m(2m – 5) = 0
*June 2, 2014*

**Algebra**

thanx both of yall XD
*June 2, 2014*

**Algebra**

A ball is thrown into the air. The height in feet of the ball can be modeled by the equation h = -16t2 + 20t + 6 where t is the time in seconds, the ball is in the air. When will the ball hit the ground? How high will the ball go?
*June 2, 2014*

**Science~!**

#1 is false
*March 4, 2014*

**Chem**

What will the products be for Ni(s) + 2Na^+(aq)? I don't think this is even possible, so will this reaction even be possible?
*March 2, 2014*

**Chem**

What is the product for the reaction of Ni(s) + 2Na^+(aq)? I don't think this is possible no?
*March 2, 2014*

**Chemistry**

3) A student mistakenly uses the cuvette containing the most dilute standard solution, rather than the cuvette containing deionized water, as the blank solution. I don't understand why there would be lower concentration of Cr(VI) ion...
*March 2, 2014*

**Algebra 1b!**

1. Find the excluded value of x for the polynomomial expression 4x/6 a. 6 b. -6 c. 1/6 d. -1/6 2. Simplifly 3-2x/7 + 4x+5/7 a. 2x+8/14 b. 2x+8/7 <--- c. x+1/7 d. 2x+2/7 3. Simplify 6ab^6/4a^7b^10 * a^3b^4/2a^7b^6 a. 7x/8 - 2x/8 b. -5x/8 c. 3a^2b^3/4a^7b^8 d. a^2b^5/2a^7b^8...
*December 9, 2013*

**Earth space science, check answers?**

A. 75 % B. 12.5% C. 25% D. 3.13% E. 9.38% 3. what percentage of land on the earths surface is inhospital lands? - B 4. what percentage of earths surface is covered by land? - C 5. what percentage of land on earth is usable, for living on, but not for agriculture/farming?-D 6. ...
*November 15, 2013*

**Check my answers?**

Earth space science.
*November 15, 2013*

**Check my answers?**

A. 75 % B. 12.5% C. 25% D. 3.13% E. 9.38% 3. what percentage of land on the earths surface is inhospital lands? - B 4. what percentage of earths surface is covered by land? - C 5. what percentage of land on earth is usable, for living on, but not for agriculture/farming?-D 6. ...
*November 15, 2013*

**Earth space science**

Well lets say For city A; 57. 156. 53 b;61. 135. 56 c; 58,136. 11 d; 67.65.198
*November 14, 2013*

**Earth space science**

I need help with this. the map doesnt show anything and idk how to post the map on here... Match the cities A,B,C, and D with the weather description of the surface model (To the right of each letter) a. city A b. City B c. City C d. City D A. Pressure of 1015.1 and south east...
*November 14, 2013*

**Algebra 1b!**

Could you guys check my answers? 1. Graph the function and identify the domaine and range. y=-1.5^2 Domain; (-,+) Range; (-,0) ( my answers.) 2.How is the graph of y=-2x^2-5 different from the graph of y=-2x^2 It is shifted units up it is shifted 5 units down <--- It is ...
*November 8, 2013*

**English!**

This is what i got so far but i need help with an opening paragraph and conclusion Mark twain used huck as narrator to see the innocent view of these difficult adult themes. in the eyes of a child, the morality of the situations he finds are much more concerning than most ...
*November 7, 2013*

**English**

For english i'm doing facts about mark twain and if i put " Around all of the facts, is it still plagiarism?
*November 7, 2013*

**Huckleberry Finn**

And i know, i just need all the notes before i write.
*November 7, 2013*

**Huckleberry Finn**

For the third; Tom sawyer and Huckleberry Finn both loved going on adventures,where it was pretend and really loyal to friends.. Tom was more imaginative but in some ways the less kind hearted of the two. Write about one of the authors we have studied. ANd last In 1846, when ...
*November 7, 2013*

**Huckleberry Finn**

Well for the first 2 i got answers. But this is an expository essay rough draft and we choose a short story and write about it with these questions. First one my answer is; He used huck as narrator to see the innocent view of these convulted adult themes. in the eyes of a ...
*November 7, 2013*

**Huckleberry Finn**

Explain how the author created the character (characterization). Explain the theme of a piece of literature. Compare and contrast two pieces of literature. Write about one of the authors we have studied.
*November 7, 2013*

**Math**

42000 and 48000 44286
*September 25, 2013*

**physical science **

I am having a little trouble with this problem. can someone please HELP! During a race, a runner runs at a speed of 6m/s. 2 seconds later, she is running at a speed of 10 m/s what is the runner's acceleration?
*August 7, 2013*

**math**

How would I solve this; John is paid at an hourly rate of $15 and over time rate of 1.5 times his hourly rate. If john puts in w regular hours and y overtime hours in a week, what is his total wage for the week? (Monday-Friday
*July 1, 2013*

**math**

1/2 + (-5/6) =?
*June 28, 2013*

**physical education**

*sure
*May 31, 2013*

**physical education**

What nutritional supplement is recommended for helping the body handle stress? A. Zinc B. Iron C. Vitamin C D. No supplements are recommended for stress management I think its a but im not sue please help
*May 31, 2013*

**english **

Which of the following is not a correct option for writing out the date in question? A. 25 January 2000 B. January 25, 2000 C. 2000, January 25 D. 01/25/00 I think this one D
*May 2, 2013*

**english**

Regarding the use of commas, which one of the following statements is accurate? A. A parenthetical use of commas is usually confusing to the reader. B. There is no need for commas that indicate added details in a sentence. C. Commas are needed to separate a list of three or ...
*May 2, 2013*

**englis**

8. Which of the following options accurately represents the steps involved in the writing process? A. Write first draft, edit, revise, write final draft B. Write first draft, revise, proofread, write final draft C. Plan, write first draft, edit, write final draft D. Plan, ...
*May 1, 2013*

**english**

3. Which one of the following sentences best describes paraphrasing? A. Janette listened to the speaker and took notes. B. Janette listened to the speaker, asked questions, and wrote a report. C. Oscar studied Dr. Frost's article and summarized it in his own words. D. ...
*May 1, 2013*

**english**

Which group of words is the complete infinitive phrase in the sentence? It is important to avoid harmful exposure to the sun’s direct rays.
*April 3, 2013*

**english**

Which word or phrase is an appositive in the sentence? When Sandy met John—a scientist and critic—she fell in love with him.
*April 3, 2013*

**Social Studies**

Which state is the least densely populated? 1. Alaska 2. Hawaii 3. Minnesota 4. New Jersey My Answer: # 2 Hawaii
*March 19, 2013*

**Math**

Thank You :-D
*March 16, 2013*

**Math**

Hello can somebody answer anybody please :( :( help !!me
*March 16, 2013*

**Math**

Find the surface area of the cone. Use 3.14 for pi 8'' in the bottom and 7'' in the right side
*March 16, 2013*

**Math**

Here is a other 1 is that OK Damon????
*March 16, 2013*

**Math**

OMG, Damon Thank You So Much!!!!! :D
*March 16, 2013*

**Math**

Find the volume of the cylinder. Use 3.14 for (π Pi) 34 m on top and 27 m down on the right. Please Help Me I try and try and nothing please please help me !!!!! :( :(
*March 16, 2013*

**Pre-Algebra**

OK, Thank You So Much For Understanding! :-)
*March 13, 2013*

**Pre-Algebra**

Why nobody wants to help me just check my answer and there if some of the answers are wrong then tell me the right ones !!! !!!!!!!!!!!! :-( :
*March 13, 2013*

**Pre-Algebra**

For numbers 1–3, find the indicated measurement of the figure described. Use 3.14 for (pi) and round to the nearest whole number. 1) Find the surface area of a sphere with a radius of 8 cm. a. 268 cm2 b. 804 cm2 c. 2,144 cm2 d. 201 cm2 2) Find the surface area of a sphere...
*March 13, 2013*

**algebra**

4y^3-4y^2+3-y
*February 24, 2013*

**social studies- check**

thats correct
*December 17, 2012*

**trig**

a ship leaves port with a bearing of S 42deg W after traveling 7 miles, the ship turns 90deg and travels on a bearing of N 52deg W for 10 miles at that time, what is the bearing of the ship to the port?
*October 29, 2012*

**Math**

120
*October 28, 2012*

**Algebra 2**

To rationalize the denominator of 4/(2+√8), Brittany multiplied by (2-√8)/(2-√8) and Justin multiplied by (1-√2)/(1-√2). Explain why both are correct.
*October 22, 2012*

*****PLEASE SCIENCE******

Well, one Kelvin is well below freezing and one Fahrenheit is a little below freezing, and one Celsius is a little above freezing, so one Kelvin must be the smallest measurement for temperature.
*October 10, 2012*

**Chemistry**

What is the temperature change in celsius when 29.5L of water absorbs 2.3 kwh of heat?
*September 26, 2012*

**physics**

What is its speed after 1.87 s if it accelerates uniformly at −4.31 m/s^2? Answer in units of m/s
*September 3, 2012*

**physics**

The initial speed of a body is 2.14 m/s. What is its speed after 1.87 s if it accelerates uniformly at 4.31 m/s^2? Answer in units of m/s
*September 3, 2012*

**physics**

A body moving with uniform acceleration has a velocity of 10.2 cm/s when its x coordinate is 3.73 cm.If its x coordinate 2.33 s later is −2.74 cm,what is the x-component of its acceleration?Answer in units of cm/s^2
*September 3, 2012*

**physics**

What is the average acceleration a between 14 s and 16 s?
*September 3, 2012*

**physics**

What is the average velocity v between 0 s and 6 s?
*September 3, 2012*

**physics**

A certain car is capable of accelerating at a rate of 0.57 m/s^2.How long does it take for this car to go from a speed of 56 mi/h to a speed of 66 mi/h? 1mi/h = 0.447 m/s.Answer in units of s
*September 3, 2012*

**physics**

A vehicle moves in a straight line with an acceleration of 5 km/h^2.By how much does the speed change each second?Answer in units of km/h
*September 3, 2012*

**physics**

Consider the expression 2π times square root of ℓ/g, where ℓ is length and g is gravitational acceleration in units of length divided by time squared.Evaluate its units.
*September 3, 2012*