Wednesday
February 10, 2016

Posts by Emmanuel

Total # Posts: 124

maths
The position vector of m in the same plane are as the point a and b is given by m=1÷2(a+b).if the vector A(-4,-3),B(2,-1).What is the direction and the relationship of vector AM and vector BM
February 4, 2016

anty alice
graph of 5x-2y=6 value=0=2
February 4, 2016

anty alice
graph of 5x-2y=6 value 0=2
February 4, 2016

Math
Out of 300 student in final year in senior secondary school, 200 are offering biology and the150 offering chemistry how many are offering neither biology nor chemistry
January 24, 2016

Word problem algebra
Steve the builder was plastering a wall while standing on a ladder..he noticed that the number of rungs/steps below,the rung he was standing on was 1/3 of the numbers of rungs above where he was standing. Then he climed another 10 rungs/steps and he also notice that the number...
January 18, 2016

Blessed lord sir steve i don't get it
How did you come ot x/2=A?
January 18, 2016

Trigonomentry help plz!!!
Sin3A=3sinA-4sin(x/2)^3 find x interms of A? PLZ show working got no ideal at all
January 18, 2016

Calculus help
Y=|X^2+3x-4| find dy/dx?
January 15, 2016

Math
Solve 3 - x = √x2 - 5 . State any extraneous roots that you found. Identify the values of x for which the radical is defined.
January 1, 2016

Math
a)Write a function o represent the area of the rectangle. one side - 5x+15 other side - 31-2x b) Graph the function- lebel x and yint c)what dp the x-intercepts represent in this situaltion? d)Does the funtion have a maximum value in this situaltion? Does it have a minimum ...
January 1, 2016

computer simulation
A grocery store has three checkout lanes (checkout 1, 2, and 3), each with a single checker. Shoppers arrive at the checkout area with interarrival times having an exponential distribution with mean 2.4 minutes. The shoppers enter the lane that has the fewest number of other ...
December 9, 2015

phomolong secondary school
i am a grade 11 learne,i cant choose the that is good for me from the following subject history,geography,life science,sepedi,life orientation,english,math literacy.
December 1, 2015

igbo
what is adverb called in igbo
November 1, 2015

math
the electron beam in a television tube consists of electrons accelerated from rest through a potential difference of about 20000v.what is the speed of the electrons?(ignore relativistic effects).electron rest mass is 9.11 X 10^-31kg and electron charge is 1.6 x 10^-19
October 25, 2015

Math
Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 15 hours, and on the trip back averaged 40 mi/h. She returned home 41 hours after leaving. How many miles is City A from City B?
September 7, 2015

science
A body of mass 20kg moving with a velocity of 8m/s collides with a stationary body of mass 10kg and the two stick together.They then move with a common velocity V.Find the value of V.
August 26, 2015

better days
a ball thrown vertically from the ground level hits the ground after 4secs.calculatethe maximumheight it reachedduringit's journey.(g=10m/s2)
August 9, 2015

physics
a stone projected horizontally from the top of a tower with a speed of 4m/s lands on the level ground at a horizontal distance 25m from the foot of the tower. calculate the height[g=10m/s2]. is it u squared divided by 2g
August 3, 2015

Science
9. The Pleistocene Epoch, from 1.7 million years ago to 10 000 years ago, was marked by A. a lack of oxygen B. the presence of warm, tropical seas C. the southern movement of the North American continent D. the formation of glaciers that covered parts of the Northern ...
July 9, 2015

Science
A skydiver steps out of a helicopter hovering thousands of metres above ground. After 3.5 s of free fall the skydiver pulls the rip cord. What is the skydiver’s displacement during the 3.5 s of free fall?
July 4, 2015

Science
A baseball flew 19.6 m straight up into the air after being hit by a bat. How long should it take for the ball to return from its maximum height? A. 1.02 s B. 1.91 s C. 2.00 s D. 3.99 s
July 4, 2015

Science Help Not sure
A traffic-safety engineer is designing a deceleration lane. She is basing the length of this lane on the distance needed to slow down from 126 km/h to 65 km/h in 8.0 s. How long will the deceleration lane be? A. 2.1 x 10^2 m B. 3.8 x 10^2 m C. 4.2 x 10^2 m D. 7.6 x 10^2 m
July 4, 2015

Science
Starting from rest, an object rolls down a long ramp with a constant acceleration of 1.72 m/s2. After rolling for 4.75 s, what is the magnitude of the ball’s final velocity? A. 9.81 m/s B. 8.17 m/s C. 6.30 m/s D. 4.09 m/s
July 4, 2015

Science Help Not sure
Within the Gaetz Lake Sanctuary in Red Deer, Alberta, is a looped trail that is 4 km long. Suppose a person walked all the way around the looped trail in 1 h, ending where he or she started. Which statement best describes this person’s motion over this time interval? A....
July 4, 2015

science
A vehicle is travelling 1.0x10^2 km/h. what is the spped of the vehicle in metres per second? 28m/s 27.8m/s 3.6x10^2m/s 1.0x10^4m/s
July 4, 2015

Science
whats the difference between average speed and instantaneous speed?
July 4, 2015

Science
1.The sound from a bolt of lighting travelled 4.08km in 12.0s. whats was the spped of the sound in metres per second? 0.340m/s 49.0m/s 340m/s 343m/s 2.A vehicle is travelling 1.0x10^2 km/h. what is the spped of the vehicle in metres per second? 28m/s 27.8m/s 3.6x10^2m/s 1.0x10...
July 4, 2015

Science
which of the following is not scalar quantity. 0.20m 5.0m/s 10.0m/s[E] 110km/h
July 3, 2015

physics
a car travels at uniform velocity of 20m/s for 5 seconds, the breaks are then applied and the car comes to rest with uniform retardation in further 8 seconds. draw a graph of velocity against time.How far does the car travel after the breaks are applied.?
June 9, 2015

Economic
Using Simpson role to find the denvatives of x=(y²+3x+7) (x²-4)
May 29, 2015

math
ref to the question above to rewrite 2/5, 1/6 and 1/3 in ascending order : I think we first find the common denominator which is 30 then 2/5 is the simplified fraction of 12/30, 1/6 is also the simplified fraction of 5/30 and lastly10/30 has been simplified to get 1/3. from ...
April 4, 2015

Math
Show three ways to make 0.60 without using pennies
March 9, 2015

english
define literature
February 23, 2015

Statistics
For $5 you can buy a ticket for a drawing for a prize of $2,000. The probability of winning the prize is 0.001. How much money to you expect to win
February 20, 2015

Physics
The position of a point A is specified as A (5.7).the y-coordinate is ?
January 20, 2015

physics
The standard piece of apparatus used to measure distance in the laboratory is what?
January 20, 2015

physics
The S.I. Unit of displacement is what?
January 20, 2015

maths lit,geography,tourism,business studies,l.o
yes i passed them with good grades
January 4, 2015

Math Plz dont ignore Plz
what do you mean show my work. do you mean show what i have done, if i dont know the question how can i show my work? i just need to know how to do it. so i can practice on it.
December 15, 2014

Math Plz dont ignore Plz
The Eskimos are trying to generate more money because player wages are increasing. they have came up with a couple of plans: Plan 1 : they are going to open up 1850 new seats in the endzone that will be reserved for family seating. they project that they will, on average, get ...
December 15, 2014

math
The Eskimos are trying to generate more money because player wages are increasing. they have came up with a couple of plans: Plan 1 : they are going to open up 1850 new seats in the endzone that will be reserved for family seating. they project that they will, on average, get ...
December 15, 2014

astronomy
it will be less than 365 days for sure, because without the sun earth will be spinning fast
December 15, 2014

Any math tutor online? Help
ik you cant graph here, but plz can you tell me the x and y intercept so i can do the grpgh
December 15, 2014

Any math tutor online? Help
Two companies charge these rates for printing a brochure : Company A charges $175 for set up and 0.10 pet brochure Company B charges $250 for set up and 0.07 pee brochure A linear system that model this situation is C=175 + 0.10n C =250+ 0.07 Where c is the total A) graph the ...
December 15, 2014

Any Math Tutor Online? Help
thx but do you think c) is right? what about the 6
December 14, 2014

Any Math Tutor Online? Help
man on 12m tower, he observed two houses. the angle of depression to one of them was 6' and the other is 3'. how far apart the houses are. Calculate the distance between the house if: a)the houses are on the same side of the tower b)the houses are on opposite sides of ...
December 14, 2014

English Landguage
Write on the topic bogs should not help in the kitchen.help
December 1, 2014

English Landguage
Write on the topic bogs should not help in the kitchen.help
December 1, 2014

The Aim of being in the university
Educate you acdemics, morally & spritually
October 17, 2014

algebra
t=10/3+c/3
September 16, 2014

math
Add the odd numbers divisible by 3 lying between 200 and 400.is arithmetic or geometric progression.
August 26, 2014

science
rf
May 21, 2014

MATH
IF 810 BOYS WEED A PLOT OF LAND IN 4 YEARS, HOW MANY YEARS WOULD IT TAKE 1080 BOYS TO WEED THAT SAME PLOT OF LAND?
April 4, 2014

math
Bladder infections are often caused when the bacteria E. coli reach the human bladder. Suppose that 3000 of the bacteria are present at time t = 0. Then t minutes later, the number of bacteria present will be a) How many bacteria will be present after 10 minutes? 30 minutes? ...
March 24, 2014

math
The position of an object moving in a straight line is given by the function , where s(t) represents distance traveled and t represents the time the object has been in motion. How long (to the nearest tenth) will it take the object to move 17 meters?
March 24, 2014

Albegra
step by step on how to solve this problem 2420/(570+r) = 2140/(570-r)
March 8, 2014

Physics
Vector is quantity that is one which has direction as well as magnitude
February 18, 2014

MATH
HOW DO YOU SIMPLIFY SURDS WITH CUBED 98 ROOT?
February 14, 2014

English
The answer is Chicago. You basically pick the number of letters stated in the fraction. For example, 3/7 of a chicken. The word 'chicken' has 7 letters. So, you pick the first 3 as stated in the fraction. Then, you do the same for other given words too and you end up ...
January 25, 2014

Statistics
It is computed by the average distance from the average or average of all the averages for multiple sets of data. It is important because it measures the variability in the set of data. It helps in finding how close the values of data set are to the mean. We compute the z-...
January 23, 2014

math
Chad buys peanuts in 2-pound bags. He repackages them into bags that hold 5/6 pound of peanuts. How many 2-pound bags of peanuts should Chad buy so that he can fill the 5/6-pound bags without having any peanuts left over?
January 15, 2014

physics
A spiral spring of natural length of 30.0cm and a constant force of 20N/m is compressed to 20cm. Calculate the energy stored in the spring.
January 7, 2014

physics
A spiral spring of natural length of 30.0cm and a constant force of 20N/m is compressed to 20cm. Calculate the energy stored in the spring.
January 7, 2014

physics
a body of mass 25kg moving at 3m/s on a rough horizontal floor is brought to rest after sliding through a distance of 2.5m on the floor. calculate the coefficient of sliding friction.
January 7, 2014

Introduction to criminal Justice.
Topic:4th Amendment exception to searches and seizures (Terry v. Ohio) what impact did Terry v. Ohio have on law enforcement officers? Hint: what have been the benefits or hindrance of Terry as it relates to officer safety?
December 17, 2013

history,geography, agricultural science andmaths lit
which job releted with this subject
December 5, 2013

Math
Solve for x -2 + 2x = -x + 2 + x
November 5, 2013

Math
For y=2x +3 whenx=4, what does y equal?
September 11, 2013

Math
Why did Airhead eat the dollar he brought to school
May 13, 2013

Math
Jada, Nicholas, Nita, and Calvin shared $60. Jada received 1/2 of the total amount of money Nicholas, Nita, and Calvin received. Nicholas received 2/3 of the total amount of money Nita and Calvin received. Nita received 3 times as much as calvin. (a) how much money did jada ...
May 9, 2013

Chemistry: Please check answers
Name the 4 isomers of the compound with molecular formular c4h10o
April 11, 2013

Life orientation
what is meant by discrimination
March 5, 2013

chemistry
Pt, (H2) 1atm | CH3COOH 0.1 M, CH3COONa 0.15M || NaBr 0.1M, AgBr(S) | Ag write the cathodic, anodic and final reactions.
February 17, 2013

Physics
n1sinQ1 = n2sinQ2 for air/glass interface Angle = 27degrees which is sinQ2 n2sinQ2 = n3sinQ3 for glass/water interface
February 8, 2013

Math
Math Question: winning time of a marathon is 1 hour, 24 minutes and 11 seconds... How do I find the average speed?
February 5, 2013

science
Ww=75-25=50g=wt of water ww=v*D=50g V*1g/cm^3=50 v=50cm^3=vol of water 65-25=40g=wt of the liquid D=40g/50cm^3=0.80g/cm^3=density of the liquid.
January 31, 2013

Social Studies
Argument that Roger Sherman uses to convince people to ratify the constitution?
January 29, 2013

chemistry
Calculate the molarity of a solution containing 58.5mg of NaCl in 2.50mL of solution.
November 30, 2012

History
The Iroquois form of government was a democracy. They had councilmen for each tribe just like how the US have councilmen for each sate. They also had women rights.
October 17, 2012

math
math
August 2, 2012

Mathsw
A man 6 feet tall is standing 9 feet from a 18 feet tall light pole. His shadow cast 15 degree. What is the angle formed from this equation?
July 27, 2012

Math
I have trouble with math, I'm very good at science and when I grow up I want to be a zoologist, the problem is that. MATH I try to pay attention at school but the teacher is very boring and I'm one of those people that can't pay attention when bored. Any tips?
April 23, 2012

math
A warehouse having a volume of 10,000 ft3 and a floor area of 1000 ft2 is to be built. The cost of constructing the floor is $6.00/ft2, the cost of the roof is $10.00/ft2, and the cost of the walls is $20.00/ft2. If W is the width, L the length, and H the height of the ...
April 23, 2012

Embedde System and IC Design.
Write a program that will count down from the last (4) digits of the student ID 1119939 until zero. Once completed, the function will reset and count down again. Assume the last two (2) digits of the student ID is a decimal number, and crystal oscillator is 11.0592MHz.
March 22, 2012

Embedded System and IC Design.
Write a program, which writes the last two (2) digits of the student ID 1119939 into the 8051 microcontroller’s internal RAM addresses from 40h to 6Fh with the same data. Assume the last two (2) digits of the Stamford student ID(1119939) is a decimal number, and crystal ...
March 22, 2012

math
How to solve a three set problem
March 8, 2012

math
7 five-pack stickers and 3 eight-pack stickers 5x+8y=59 5(7)+8(3)=59 35+24=59 59=59
March 7, 2012

Math
7 five-pack stickers and 3 eight-pack stickers
March 7, 2012

Physics
How do i determine the mass of ice initially in the calorimeter when dry saturated steam is passed into 250g of a mixture of ice and water in a calorimeter of thermal capacity 45J/K when all the ice has just melted,and the mass of the content in the calorimeter has increased ...
March 4, 2012

algebra
a box of animal crackers measures 12 inches by 8 inches by 2 inches. what is the volume of the box?
February 7, 2012

math
ratio 1,5 hours 50 min
January 28, 2012

maths
factorise fully: 5x^2+11x+2
January 27, 2012

industrial electronics N2
Hi, i'm seriously need your help on this subject just to explain the basics, chapter by chapter. i registered a part-time Electrical Engineering and placed me in N2.
January 19, 2012

physics
A uniform rod (AB) of mass 80kg and 1.0m lenght is supported on the 2 knife edges placed 15.0cm from its ends. what will be the reactions at these support when a 20kg mass is suspend 10cm from the mid-point of the rod.(workings and diagram).
November 16, 2011

MATH
Answer
October 31, 2011

AP Physics
M1v1 +M1v1=(m1+m2)v (3*10) + (0.5*0)=(3+0.5)v 30 + 0 = 3.5v 30 =3.5v v =8.57m/s.
October 18, 2011

chemistry
B. Everyone knows that water is supposed to boil at 100° C. Why did your water sample boil at a different temperature? C. While heating two different samples of water at sealevel, one boils at 102o C and one boils at 99.2o C. Calculate the percent error for each from the ...
September 16, 2011

world issuse
The answer should be 'message'. We read it everyday, d 3rd and 4th letters are the same and d 5th 6th and 7th letter increases everyday which is 'age'
May 24, 2011

chemistry
what is the ph of a 2.0M solution of a strong acid?
April 3, 2011

Mathematics
4 and 5
February 20, 2011

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