Tuesday
October 25, 2016

# Posts by Isaac

Total # Posts: 154

Math
The Sum Of Two Consecutive Number Is 39.What Is The Smallest Number
September 27, 2016

newton
the sum of the first 12 terms of an AP is 168.if the third term is 7,find the value of common difference and first term
August 10, 2016

Budini ss chem
Describe the preparation of sodium hydroxide in the school laboratory.
August 2, 2016

Chemistry
How much heat is produced by the complete reaction of 5.29 kg of nitromethane?
July 28, 2016

Math
A watch loses five seconds every one hour How many minutes will it loss in two days
July 23, 2016

Math
Determin x if f(g(x))=0 for the following f(x) = 3x-2 g(x) =5x+5
May 14, 2016

Science
Compare a desert ecosystem and forest ecosystem.
April 29, 2016

Math
Several models of a rectangular cabin are being studied the perimeter of each model is 26 inches the length of one model is 8 inches what is the width of the model
April 18, 2016

English
African slaughter rituals should be allowed in the suburbs?
April 16, 2016

geography, math literacy, history and Business
Which career can I choose
March 19, 2016

I don't realy think i can answer dix question
March 9, 2016

Calc 12
Let f be the function defined by f(x) = (x^2 + 1)e^-x for -4≤x≤4. a. For what value of x does f reach its absolute maximum? Justify your answer. b. Find the x-coordinates of all points of inflection of f. Justify your answer.
February 15, 2016

Math
Elena jogs 7 kilometers west and then 5 kilometers down south. She stops and checks her time. How far is she from her starting point?
February 11, 2016

Math
What figure has six faces, and each face has the same surface area?
February 11, 2016

Physics
A body moving with a velocity at 10 ms collides with a stationery box of mass 100 kg.I f the body has a mass of 50 kg and the two move together after collision.Find their final velocity?
January 18, 2016

Physics
A body moving with a velocity at 10 ms collides with a stationery box of mass 100 kg.I f the body has a mass of 50 kg and the two move together after collision.Find their final velocity?
January 18, 2016

basic technology
a man 80kg carries a load of bricks of mass 20kg up a vertical ladder of length 6m what work has he done
January 11, 2016

physics, vector
three vector f1=2i-3j -4k, f2=3i+4j-0k,f3=3i-j+5k act on a body of mass 40g causing it to displace for 10sec from p1 ( 2,3,7 ) to p2 ( 3,6,7 ). (i) estimate the over all displacement vector. (ii) estimate the resultant force on the body . (iii) what is the distance from p1 to ...
December 29, 2015

math
Pls what is x i beg you
December 29, 2015

math
A square of lawn is surrounded by a path 0.5m wide,,the area of the lawn is 23m^2 bigger than that of the area of the path ,,find the side of the lawn
December 29, 2015

math
A square of lawn is surrounded by a path 0.5m wide,,the area of the lawn is 23m^2 bigger than that of the area of the path ,,find the side of the lawn.
December 29, 2015

Science
How much graphite carbon must be burned in oxygen gas to produce 2.2 grams of carbon dioxide gas
November 27, 2015

Trig
Sorry what do you mean by ^ ?
November 16, 2015

Trig
A ship leaves port at 6 am and heads due east at 20 knots. At 10 am, to avoid a storm the ship changes course to N 47° E.. (47° east of north). Find the ships distance from port at 4 pm.
November 16, 2015

A sample of 900 items is taken from a population with standard deviation 15. The mean of the sample is 25. Test whether the sample has come from a population with mean 26.8. Take a=5%
November 14, 2015

pioneer math
last year mr smith's rectangular garden has a width of 4 meters and an area of 24 square meters this year he wants to make it three times as long and twice as wide
November 10, 2015

Algebra
a car salesman works for a monthly wage of \$1000 and 10% of his cars sold. Using m for his total monthly income and c for the value of the cars he sells in a month, the equation that shows this is m=0.10c+1000 A. What would the equation be if, instead, he earned 9.5% for every...
October 7, 2015

Chemistry
If I did those two, how would I show the two ions coming to make (NH4)2SO4?
July 6, 2015

Chemistry
Give an example of one polyatomic cation and one polyatomic anion. Show how these ions combine to make a compound. My thinking: Cation-ClO Anion-K How they form, I don't know?
July 6, 2015

Chemistry
So it's used to create a mass for a molecule that doesn't exist, if what I am getting is correct. So by using the ratio between the two elements, especially those in an ionic compound such as NaCl, it's there to give a value to something that never had a value.
July 6, 2015

Chemistry
When is the term, formula unit, useful? Is it when trying to figure out the empirical formula?
July 6, 2015

mathematic
Pleasea help me out am stock
May 5, 2015

math
Roger just got a puppy for his birthday. He and his mother will build a fence around an area in the backyard for the puppy to play in. The play area will be 24 square feet. What dimensions could the play area be? Which dimensions would require the least amount of fencing?
April 7, 2015

phy 111
B a d c a a c c d b b a b a d d
March 30, 2015

mathematics
a+2d=14
March 5, 2015

AP Calc
The curve y=x^3 intersects the line y=7x-6 at three points, (-3,-27), (1,1), and (2,8). Find the total area bounded by y=x^3 and y=7x-6.
March 1, 2015

AP Calc
The curve y=x^3 intersects the line y=7x-6 at three points, (-3,-27), (1,1), and (2,8). Find the total area bounded by y=x^3 and y=7x-6.
March 1, 2015

A uniform rod AB is 2m Long. The rod, which exerts a downward force of 60N at its center, is placed on a knife edge support positioned 0.8m from A. Determine the vertical downward force required at A to prevent rotation.
February 9, 2015

Lance wants to find the total length of 3 boards. He uses the expression 3 1/2 + (2+ 4 1/2). How can Lance rewrite the expression using both the Associative and Commutative Properties of Addition?
February 4, 2015

trig
two ships p and q left a port at the same time. q sailed on a bearing of 150 while p sailed on the north side of q. after a distance of 8km and 10km by pand q respectively, their distance apart was 12km. find the bearing of p and r
February 4, 2015

math
Explain how to write 3 x 3/8 as the product of a whole number and a unit fraction.
February 2, 2015

what does the statement "the properties of salts are different from the properties of the elements"mean.
November 20, 2014

math
I spent 2/3 of my money at store A. I spent 1/3 of my money at store B. When I left store B I had \$4. How much money did I have when I entered store A?
October 29, 2014

Physics
The horizontal surface on which the block of mass 5 kg slides is frictionless. The force of 29 N acts on the block in a horizontal direction and the force of 58 N acts on the block at an angle(top Right). What is the magnitude of the resulting acceleration of the block?
October 9, 2014

chemistry
state four differences between acid-base indicators and universal indicators
October 3, 2014

Danielle received \$32 for her birthday. Three years ago, she received 1/4 as much. How much did Danielle receive three years ago?
September 30, 2014

Physics
A truck on a straight road starts from rest and accelerates at 2.8 m/s^2 until it reaches a speed of 16 m/s. Then the truck travels for 16s at constant speed until the brakes are applied,stopping the truck in a uniform manner in an additional 3.6 s. How long is the truck in ...
September 9, 2014

Physics B
A car, moving along a straight stretch of highway, begins to accelerate at 0.0261 m/s2. It takes the car 48.6 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s Couldn't find a formula for this :(
September 1, 2014

Algebra
A smart phone is on sale for 25% off its list price. The sale price is \$149.25. What expression can be used to represent the list price of the phone.
August 5, 2014

math
can u place give pointers on how to draw the graphs of y=2^ and y=-2^ on the same set of axes (4 marks) this new to me
May 16, 2014

history
augustus ruled from__ to___. Where did he rule
May 13, 2014

7. potential energy 8.reducing the friction between the wagon wheels 9.21 10.The wheelbarrow supplied 87.5 J of work.
February 5, 2014

Algebra
factor 4x cubed - 32
November 5, 2013

physics
the length of copper and iron wire is 500m at 0°c. determine the difference in their length at 30°c
September 15, 2013

vector and geometry
Given that;r-1=6i-8j=2k, r2=4i=5j=7k, r3=2i=j=6k. Find r1,r2.
August 30, 2013

Calculus
How can I prove this series alternating series converges(this is the answer)? (-1)^2*(2/3)^n I tried it this way: an = (2/3)^n, then i just broke it down. 2^n/(3^n) and i took the ratio of it and got 2/3 which does not equal to one which would mean the series diverges.. but ...
July 26, 2013

math
tap a was turned on to till a rectangular tank of 50cm by 40cm by 28cm with water at a rate of 6 liters per minute. after 2 minutes, tap b was turned on to drain water from the tank at a rate of 2 liters per minutes. 6 minutes after tap b was turned on, both taps were tuned ...
July 23, 2013

math
tap a was turned on to fill a rectangular tank of 50cm by 40cm by 28cm with water at a rate of 6 liters per minute. after 2 minutes, tap b was turned on to drain water from the tank at a rate of 2 liters per minutes. 6 minutes after tap b was turned on, both taps were tuned ...
July 22, 2013

Calculus
The question is find the area of the reagion that is bounded by the curve y=arctan x, x=0, x=1, and the x-axis. So I've drawn the enclosed region. To find the area would I use the Disc/shell method? If so the formula that I came up with looks like this: If area = pi(r)^2 ...
July 12, 2013

Calculus
= 1/(3x+5)*d/dx (3x+5) =3/(3x+5)
July 12, 2013

Calculus
There is this improper integral problem I've been given. I've completed most of it but still don't understand what I'd get, I don't quite get what it means to go from 'e' to 'infity'. What would I get? -ln(x)+1/x from 'e' to '...
July 12, 2013

physics
a particle a of mass 2kg and particle b of mass 1kg are connected by alight elastic string c, and initially held at rest 0.9m apart on a smooth horizontal table with the string in tension. they are then simultaneously released . the string releases 12j of energy as it ...
July 7, 2013

physics
s = vt s=3×15 s=45m
July 7, 2013

inorganic chemistry
silt is an example of ........ Hydride
May 20, 2013

Math
Here is the work 10/3x + 4/3 = (7+x)/2x Multiply both sides by 6x: 2*10 + 8x = 3(7+x) 20 + 8x = 21+3x 8x-3x = 21-20 = 1 5x = 1 X = 1/5.
April 22, 2013

Math
It's C
April 22, 2013

Arithmetic
three numbers in an arithmetic sequence sum up to six. if you add 1 to the first number, 2 to the second number, and 5 to the third number, what are the orginal three numbers?
February 19, 2013

English
No its C. I go to Connections academy and just did that test!
January 30, 2013

Math
When M+N=8 and 2R+N=8, what is the value of R? A.16 B.4 C.-4 D.-8 E. It cannot be determined from the information given.
January 4, 2013

math
3 not on the beach
December 18, 2012

math
At a lake, 40 people are water skiing or on the beach. Nine of the 12 people on the beach decide to swim. How many people are not on the beach?
December 18, 2012

Ratio
Ratio in simplest form
December 5, 2012

Chem 1
How can you prepare 2M of 200 ml HNO3 solution from 63% stock solution of HNO3 which has a density of 1.4 g/ml?
December 5, 2012

Chemistry
Molecules of H2: 3 molecules. Nitrogen atoms present: 3 atoms Moles of NH3 formed: 2 moles
October 7, 2012

AP Physics
v=vo +at vo=v v-at vo=9.81m/s - (6.24m/s^2(.3s)) vo=9.81m/s - 1.872m/s vo= 7.44m/s
October 3, 2012

The War of the Roses placed the __________ on the English throne. Lancasterists Tudors Sheffields Bosworths Normans
October 1, 2012

History
well he made plays on this topic so True?
October 1, 2012

Math
The temperature at the top of Mt. Washington one morning was -10 degrees Fahrenheit. With the conversion formula C=5/9(F-32). What was the temperature in degrees Celsius (to the nearest degree)?
September 10, 2012

Math
A=p+prt. Solve for p and t
September 10, 2012

Math
Solve for y and x. x(y+2)=z Please Explain for me
September 10, 2012

equations
decide whether each equation is true or false.For each true equation,write the number property shown by the equation.0+6=6
September 4, 2012

Social Studies
its A .
June 1, 2012

Math ( Palette of Problem)s)
At a lake 40 people are water skiing or on the beach. Nine of the 12 people on the beach decide to swim. How many people are not on the beach? Is it 3?
May 21, 2012

Math ( Palette of Problem)s)
At a lake 40 people are water skiing or on the beach. Nine of the 12 people on the beach decide to swim. How many people are not on the beach?
May 21, 2012

science
A relative density bottle has a mass of 40g when empty, 90g when filled with water and 80g when filled with oil. Calculate the relative density of the oil.
April 27, 2012

mathematics
A sales manbought some plates at\$50.00 each.if he sold all of them for\$600.00 and made a profit of 20% on the transaction,how many plates did he buy?
April 26, 2012

mathematics
A sales manbought some plates at\$50.00 each.if he sold all of them for\$600.00 and made a profit of 20% on the transaction,how many plates did he buy?
April 26, 2012

mathematics
A sales manbought some plates at\$50.00 each.if he sold all of them for\$600.00 and made a profit of 20% on the transaction,how many plates did he buy
April 26, 2012

Life orientation
HUMAN PROBLEM THAT AFFECT THE COMMUNITY
April 24, 2012

my mom keeps sayin i need like 100 credits to pass 6th grade,is this true?
April 12, 2012

accounting
Contribution margin = sales revenue - variable cost... So (20000*10) 200000-(20000*4)80000= 120000
March 26, 2012

physics
so n = 240 and i is 0,61?? and would the radius be 0.018/2??
March 22, 2012

Math
The inside has to equal 360 since its a 4 sided figure you know 2 sides which are 90 and the third side is 52 so 360= 52 + 90 + 90 + x solve for x 360 - 90 - 90 - 52 = x x=128
March 22, 2012

math
multiply both sides by 5 to get rid of the denominator and you get w(5)/5 = 6( 5) the 5's cancel out on the left side and you get left with w= 30 ** always remember - whatever you do to the left side you must do to the right* ( in this case we multiplied left side by 5 so ...
March 22, 2012

Physics Help!!!
A pitcher throws a 0.111-kg baseball, and it approaches the bat at a speed of 37.4 m/s. The bat does 78.6 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 30.8 m above the point of impact.
February 26, 2012

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