Sunday

February 26, 2017
Total # Posts: 68

**Maths**

Find the number of ways of forming an executive committee of 4 in a social club consisting of 15 members, if a particular man must be in the team

*December 11, 2016*

**math**

(a) Differentiate (x^2 + 1)^4 (b) Hence find a primitive of 8x(x^2 + 1)^3 .

*November 21, 2016*

**Maths**

dx/dt = (x+2) sin^2 2t, given x=0, t=0. Solve the differential equation and calculate value x when t= pie/4, giving your answer in 3 significant figures.

*October 2, 2016*

**Math**

Th equation x^3 - x^2 - 6 = 0 has one real root, denoted by a. Find by calculation the pair of consecutive integers between a lies.

*September 29, 2016*

**Maths**

Solve the equation: sin^-1 (4x^4+x^2) = 1/6 pi

*September 28, 2016*

**Chemistry**

This is about rate of reaction btw.

*September 16, 2016*

**Chemistry**

What are the other two independent other than concentration for reaction of hydrochloric acid with calcium carbonates. And what are thier control variable?

*September 16, 2016*

**Science ~ Astronomy**

Which evidence provides support for the nebular theory: a) scientists have observed the formation of a distant solar system b) the nebular theory has been proven mathmatically c) astronomers have observed protoplanetary disks around distant newborn stars d) none of the above I...

*June 6, 2016*

**life orientation**

Help joh

*April 19, 2016*

**math**

Ball

*February 29, 2016*

**Math PLZZ**

That was totally wrong

*October 21, 2015*

**Mzamba C.H.S**

What can I be If I do pure mathematics, english Home Language, Life sciences,Agricultural technology,Life Orientation and Isixhosa FAL

*August 19, 2015*

**Physics**

A pole-vaulter just clears the bar at 4.42 m and falls back to the ground. The change in the vaulter's potential energy during the fall is -3800 J. What is his weight?

*July 26, 2015*

**ICT (Programming)**

Design program logic that receives the letter grades for 4 subjects and then based on the grades, calculate the total grade point. The program should use IF statements to determine the grade point corresponding to the letter grade (as given in the table below). Once all the ...

*April 11, 2015*

**ICT (Programming)**

Based on the table below, Based on the table below, using a CASE structure to display the type of designation when a specific code is entered. CODE TYPE OF DESIGNATION L LECTURER S SENIOR LECTURER D DEAN A ADMINISTRATION (other code) WRONG CODE ENTERED! 4. Student is required ...

*April 11, 2015*

**chemistry**

You weigh out an antacid tablet and determine the mass to be 1.1990 g. After taking a 0.2455 g sample of the antacid tablet, you dissolve it in 25.00 mL of a 0.1006 M solution of hydrochloric acid in a 250.0 mL Erlenmeyer flask. After heating the solution to get rid of carbon ...

*April 2, 2015*

**Calculus**

An observer is 36m above the ground floor of a large hotel atrium looking at a glass-enclosed elevator shaft that is 26m horizontally from the observer. The angle of elevation of the elevator is the angle of the observer's line of sight makes with the horizontal (it may be...

*March 10, 2015*

**Calculus**

An observer is 23m above the ground floor of a large hotel atrium looking at a glass-enclosed elevator shaft that is 15m horizontally from the observer. The angle of elevation of the elevator is the angle of the observer's line of sight makes with the horizontal (it may be...

*March 10, 2015*

**science**

A reflecting spherical Christmas tree ornament has a diameter of 12 cm. A child looks at the ornament from a distance of 18cm. A ... image will form at ... from the ornament

*February 25, 2015*

**calculus**

t=0 initially

*February 21, 2015*

**calculus**

A woman is attached to a bungee cord from a bridge that is 38m above a river. Her height in meters above the river t seconds after the jump is y(t)=19(1 + e^-1xcos(t)) for t>0. What is her velocity at t=1 and t=4?

*February 21, 2015*

**Math**

A(1,4), B(-3,8) and C(5,6) as vertices of triangle ABC a-find the slope of the line through A parallel to BC b-Find the slope of the altitude from c to ab

*January 19, 2015*

**Maths literacy, accounting, economics and business studies**

You can be a bookkeeper

*January 12, 2015*

**chemistry**

Find the mass of AlCl3 that is produced when 10.0 grams of Al2O3 react with 25.0 g of HCl according to the following equation. Al2O3(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2O(aq) 65.4 g help me ASAP.PLIS..

*January 5, 2015*

**calculus**

(-0.63, 0.63) - final answer

*October 10, 2014*

**Educational tech-1 question**

The answer is A, both are covered by intellectual property protection.

*April 7, 2014*

**Geometry**

127.3 90*90+90*90=16,200*16,200 Then you need to find the square root of 16,200, which would be 127.3

*March 6, 2014*

**sjc coolege**

A steel bar 10m long and 10cm ×2.5cm in section .It is subjected to an axial pull of 250KN. Determine the intensities of normal and tangential stresses on a plane.

*February 3, 2014*

**English**

How has francis ford coppola used film techinques to convey the italian mafia that existed in the 1900's? hi there i already started the essay, however, i am quite confused as to how to write it into exact essay format. i have already written all my ideas down and im in ...

*October 27, 2013*

**Physical Science ASAP**

true because oil can decrease the friction of any object

*October 23, 2013*

**physics**

A skater with 60 kg mass pushes a skater of 80 kg with a 68 N force. What will be the magnitude and direction of force and acceleration of each skater?

*September 17, 2013*

**physics**

A skater with 60 kg mass pushes a skater of 80 kg with a 68 N force. What will be the magnitude and direction of force and acceleration of each skater?

*September 17, 2013*

**Precal**

Verify the identity: sin^(1/2)x*cosx - sin^(5/2)*cosx = cos^3x sq root sin x I honestly have no clue how to approach the sin^(5/2)*cosx part of the equation

*June 24, 2013*

**maths**

Given that 1 - x2/6 smaller of same as x sin x / 2(1-cos x) smaller or same as 1. Use the Sandwich Theorem to obtain the limit of x sin x / 1 - cos x when x is 0

*February 16, 2013*

**maths**

Given that 1 - x2/6 smaller of same as x sin x / 2(1-cos x) smaller or same as 1. Use the Sandwich Theorem to obtain the limit of x sin x / 1 - cos x when x is 0

*February 16, 2013*

**maths**

Use the Sandwich Theorem to obtain the limit of 2 Sin x / x when x is 0

*February 16, 2013*

**Chemistry**

The distance between Miami and Key Largo is 70 miles. If a mile is 5280 ft and an inch is 2.54 cm, Calculate this distance in Kilometers

*January 20, 2013*

**the inspection**

need help don't know

*August 11, 2012*

**science**

Hi, I was wondering if I answered this question correctly #1-Two kinds of cell-transport are used in the process that forms ATP. Name the two types of transport and describe how they take place. Electron transport is not a form of cell transport. #1- I think the passive and ...

*August 4, 2012*

**biology**

Hi, I was wondering if I answered this question correctly #1-Two kinds of cell-transport are used in the process that forms ATP. Name the two types of transport and describe how they take place. Electron transport is not a form of cell transport. #1- I think the passive and ...

*August 3, 2012*

**biology**

Hi, I was wondering if I answered this question correctly #1-Two kinds of cell-transport are used in the process that forms ATP. Name the two types of transport and describe how they take place. Electron transport is not a form of cell transport. #1- I think the passive and ...

*August 3, 2012*

**English**

Hi, I am writing an essay about "Disneyfication" of folktales, and I searched for quotes and resources but I didn't find any useful information. I really need help in finding quotes and resources about "Disneyfication" of folktales.

*July 18, 2012*

**english**

Thank you so much and thanx for the tip I'll try it on my next essay

*July 16, 2012*

**english**

Hi, I posted my essay earlier for punctuation, corrections, and I really need help correcting the following from the essay: -I read the Quran everyday of my life to learn and get inspired from. -The book had this amazing story about a Woman that was cured from breast cancer by...

*July 16, 2012*

**english**

Hi, I Proofread for wording errors and grammar, but I need help to see if my grammar is proper now. I personally respect every religion, and I love reading holy books. Holy books inspire many people. Holy books taught me many morals and stories on our everyday life, which ...

*June 30, 2012*

**Life Or**

3.1,1What according to the basic condition of employment Act applies with regard to the contravention that you ve identified?

*March 26, 2012*

**grammar help**

heres the question tell me what you would look for to tell whether a cell was prokaryotic or eukaryotic. Be specific.

*March 17, 2012*

**grammar help**

#2The first thing I would look for to tell whether a cell is a prokaryotic or a eukaryotic is the cell size. Eukaryotes are larger and more complexing than prokaryotic cells. The second thing I would look for is the nucleus if the cell has a nucleus it is a eukaryote. And ...

*March 17, 2012*

**grammar help**

So the story began when a small aerobic prokaryote came in a large prokaryote. The large prokaryote ingested it and it turned to a mitochondrion. A small photosynthetic prokaryote came the large prokaryote ingested it and it turned to a chloroplast. The life used to consist of...

*March 17, 2012*

**grammar help**

#1- So the story began when a small aerobic prokaryote came in a large prokaryote. The large prokaryote ingests it and it turns to a mitochondrion. A small photosynthetic prokaryote comes the large prokaryote ingests it and it turned to a chloroplast. The life use to consist ...

*March 17, 2012*

**grammar help**

#1- So the story begin when a small aerobic prokaryote came in a large prokaryote. The large prokaryote ingests it and it turns to a mitochondrion. A small photosynthetic prokaryote comes the large prokaryote ingests it and it turned to a chloroplast. The life use to consist ...

*March 17, 2012*

**grammar help**

Hi, Please help me fix grammatical and any other mistakes in my writing. #1- So the story begin when a small aerobic prokaryote came in a large prokaryote the large prokaryote ingests it and it turns to a mitochondrion , then a small photosynthetic prokaryote comes the large ...

*March 17, 2012*

**physics**

1.1m/s

*February 28, 2012*

**chemistry**

At STP, when 3.75 liters of oxygen reacts with excess glucose, what volume of carbon dioxide does it produce?

*February 16, 2012*

**Physics**

Please Help. A 5 kg object is propelled from rest at time t=0 by a net force F that always acts in the same direction. The magnitude of F in newtons is given as a function of t in seconds by F= 0.5t. What is the speed of the object at t =4s?

*December 18, 2011*

**statistics**

Gallup News Service conducted a survey of 1,006 American adults aged 18 years or older, September 24-27, 2007. The respondents were asked, “What, if anything, worries you most about your personal financial situation in he long term? ‘Of the 1,006 adults surveyed , 18...

*October 29, 2011*

**Com 155**

How can you tell if a paragraph is a summary, synthesis, analysis, or evaluation

*October 21, 2011*

**math**

if a radio tower send a signal with a 12-mile radius. will a house that is 10 miles east and 5 miles north of the tower receive the signal i tried the problem, i drew a picture but im not sure of its right because i don't have a compass to make a good circle

*April 20, 2011*

**trig**

If there is anything about log, it is logarithmic So take the log of both sides, log 300 = log 8y Writing 300 as 3*100, log(3*100)=log 8y Using log(AB) = log A+log B, log 3+log100=log 8+log y Because log 100=2, log 3+2=log 8+log y Rearrange: log 8-log 3=log y-2 By log(A/B)=log...

*April 20, 2011*

**math**

Barstucks is making a new coffee blend. The company bought 50lbs. of Kona beans at $34.95 per lb. and plans to mix these beans with Columbian beans that sell for $7.99 per lb. wholesale. If Barstucks wants its cost of the blend to be $11.95 per lb., how many lbs. of Columbian ...

*April 20, 2011*

**Math/science**

describe the symmetries of a water molecule.

*April 13, 2011*

**Math**

let x and y be real numbers. find the area enclosed by the graph of the following equation: abs(2x)+abs(2y)=1

*April 13, 2011*

**Math**

Signs in a department store read, "75% off original prices when you take an extra extra 50% off already reduced prices." By what percent were original prices reduced before today's sale?

*April 13, 2011*

**History**

Fear of christianity, need for political unity and stability. They were afraid that local Chritains would help turn he country over to a foreign power, as had happened in the Philippines.

*July 26, 2009*

**History**

Identify three reasons why Japan closed its doors to the outside world.

*July 26, 2009*

**World History**

Ok read it but there is no comparison of the 2 cultures.

*July 26, 2009*

**math**

suppose x S f(t) dt= x^2 - 2x + 1. Find f(x). 1 S = integral and 1 = lower level, x = upper i don't understand what i'm supposed to find/what to do and i didn't make any typos.

*December 1, 2007*

**math**

factor x2+16x-36 factors are 18, 2

*April 17, 2007*

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