Friday
September 19, 2014

Posts by Isaac


Total # Posts: 94

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

Algebra
factor 4x cubed - 32
November 5, 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

Please
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

Math ( Palette of Problem)s)
answer:3
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

6th grade credits
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

math
Ok thanks
February 24, 2012

math
Th'at didnt really help, heres the choices What is the surface area of a circle that has a diameter of 14 inches? A. 49.86 in 2 B. 153.86 in 2 C. 196.86 in 2 D. 616.86 in 2
February 24, 2012

math
What is the surface area of a circle that has a diameter of 14 inches?
February 24, 2012

math
What is the surface area of a circle that has a diameter of 14 inches?
February 24, 2012

math
Thanks
February 24, 2012

math
The surface area of any shape is expressed in:
February 24, 2012

math
10x+10y=40 dived by 10 x=4
February 20, 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

Physics
Over a time interval of 2.15 years, the velocity of a planet orbiting a distant star reverses direction, changing from +18.9 km/s to -17.3 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during this interval. ...
January 22, 2012

trig
Find the exact solutions of the equation in the interval [0,2pi). sin(x/2)+cos(x)=0
December 5, 2011

Calculus
Hello, could someone please help me with this problem? I'm a little stuck with it. Thanks, Isaac A rectangle is to be inscribed with its base on the x-axis and its other two vertices above the x-axis on the parabola y=9-x^2 (a) find the dimensions of the rectangle of ...
November 28, 2011

Home Insurance
These r question tho n i need them lol ppl kum here for answers not watever diss is ^^
October 23, 2011

Science
In what way is erosion NOT like weathering? A)It is a force that changes the earth's surface B)It is a destructive force C)It changes rocks in some way D)It breaks down rocks I think D??
October 18, 2011

liquid
Go to google and search it you will find the answer
October 18, 2011

social studies
If you go to google it says Johann Gutenberg invented the printing press
October 18, 2011

2nd grade math
2 Quarters equal 50 cents. 1 dime equals 10 cents 2 pennies equal 2... Add then all together 0.50 0.10 0.02 ____ 0. 62 Subtract 0.75 from 0.62 You get 13
October 18, 2011

English
twitch and rub its back, there are two predicates but question asks for one
October 3, 2011

English
What is the predicate in this sentence? The wiskers on my kitten twitch when I rub its back.
October 3, 2011

Calculus
A manufacturer constructs open boxes from sheets of cardboard that are 6 inches square by cutting small squares from the corners and folding up the sides. The Research and Development Department asks you to determine the size of the square that produces a box of greatest ...
August 9, 2011

Calculus
I just wasn't sure if the answer was simply a sketch, 6 - 2x each side with the cut-outs. Thanks!!
August 9, 2011

Calculus
A manufacturer constructs open boxes from sheets of cardboard that are 6 inches square by cutting small squares from the corners and folding up the sides. The Research and Development Department asks you to determine the size of the square that produces a box of greatest ...
August 9, 2011

Physics
A hang glider and its pilot have a total mass equal to 120 kg. While executing a 360 degree turn, the glider moves in a circle with an 8-m radius. The gliders mass is 10 m/s. a) what is the net force on the hang glider? b) What is the acceleration?
June 21, 2011

Math
A plane flies 150km due south and then 150km on a bearing of 45 degrees Celsius. With repeat to it initial position, find a. How far south the plane is b. how far east the plane is is c. It bearing d. How far way it is
June 7, 2011

home ec
what are both quick breads and yeast bread made from?
May 16, 2011

Logic
Using truth tree decomposition, determine the consistency of the set of propositions. Include line numbers and justifications, and recover the truth values if consistent. {A and B, ~B v C}
May 16, 2011

Math
Explain how you could estimate 22% of 78 to check if your answer is reasonable.
April 20, 2011

math
rectagle
March 22, 2011

math
same perimeter,diferent area 20 centimeters
March 22, 2011

math
There are 10 girls and 6 boys in a class. The teacher randomly draws one student's name and then draws another. What is the probability that the first name drawn will be a boy and the second will be a girl?
March 16, 2011

science
Please help what is the titration product of sodium hydrosulfite Na2S2O4 with sodium hypochlorite NaOCl?
March 3, 2011

Physics 112
(delta) V=EPE/q 400V = EPE/q 400V*q = Ekfinal (in J) 400V*3.2x10^(-19) (the charge of two protons in helium nucleus) = Ekfinal (in J) = 1.28x10^(-16) J Convert this to eV (divide by the charge on 1 electron), and you get 800
January 18, 2011

chemistry
calculate the mass that if converted to energy would be equivalent to the energy released when 1g of CH4 is burned
December 21, 2010

economics
what is taxation
May 17, 2010

physics...
Where did u get 5.84m
April 15, 2010

Algebra 2
Write this equation in standard form.. y=x2-6x+11 the x is squared
February 2, 2010

Algabra
Landscape designers often use coordinate geometry and algebra as they help their clients. In many regions, landscape design is a growing field. With the increasing popularity of do-it-yourself television shows, however, many homeowners are becoming amateur landscape artists. ...
November 25, 2009

statistics
Find the chance that if you toss a pair of dice, you get 6 for the sum.
October 4, 2009

math
$112 for 16 tickets, solve by determining the unit rate
May 6, 2009

Linear Algebra
V = Mnxn is a space vector formed by all the square matrices. Is W = {A in Mnxn : A^x = A} a subspace of V? Thanks
May 1, 2009

math
2a squared + 8a = -12
April 7, 2009

11th grade
what major problem in america did the progressives ignore?
January 6, 2009

Physics
A 3 m, 250 N/m spring is at the bottom of a 10 m, 20 degree frictionless slope with a 30 m drop off the top of the incline. If a 10 kg wight is placed at the end of the spring when it is compressed 2 m, how fast will the block be traveling just before it hits the ground?
November 5, 2008

Math
What is 25 Divided by (-5)
September 16, 2008

space
does our solar system move in the milky way galaxy?
January 27, 2008

Quick general Q:
I dont think so
November 13, 2007

Math
thank you
November 13, 2007

Math
What set of instructions would you give somebody to compare decimal numbers?
November 13, 2007

Math
How do you compare decimal numbers?
November 13, 2007

science
On a warm summer afternoon, why would cumulus clouds and thunderstorms form in one part of a town and not in another? Usually such clouds are not in towns. They are in the upper atmosphere. Please read: http://en.wikipedia.org/wiki/Cumulus_cloud THEN TRY FERRETING HERE: http...
May 30, 2007

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