Sunday
February 14, 2016

Posts by Ben

Total # Posts: 888

Algebra
(60/x)x66=400
February 11, 2016

Science (Physics)
A ball is projected horizontally from the top a hill with a velocity f 30mls. If it reaches the ground 5seconds later, the height of the hill is?
February 11, 2016

Science (Physics)
A ball is projected horizontally from the top a hill with a velocity of 30mls. If it reaches the ground 5seconds later, the height of the hill is?
February 11, 2016

STAT
0.2
January 6, 2016

College physics
a person drives northward (90 degrees) at 15m/s in a truck that weighs 2500kg. a second person driving a car that weighs 1600 kg drives southwest (225 degrees) at 16 m/s. They have a perfectly inelastic collision. What is the direction and speed of the two vehicles immediately...
November 22, 2015

science
a horizontal beam 6.8m long of mass 15kg is supported by pillars of 0.2 of each end. There is a man of mass 85 kg standing 1.7kg from one end of the beam .draw a diagram showing the forces acting on the beam in this equilibrium condition .calculate the magnitudes of the loads...
November 14, 2015

World history
Thank you
November 10, 2015

World history
What influenced the scientific revolution?
November 10, 2015

math
THANK YOU!!
November 2, 2015

math
The discounted price of a book is 85% of the original price. This is a savings of $3. A sales tax of 8% will be added to the discounted price. What is the original price? the discounted price? and the tax?
November 2, 2015

Math
4x(x-2)=(2x+1)(2x-3) need help to solve
October 13, 2015

prasanna high school
Maths quection inam A.P. The sum of first six terms is 6an the product of second term and fifth term is -80. Find the terms of A.P.
October 8, 2015

4
Bobby has 230 marbles to put in jars. He wants the jars to hold either 100 marbles or 10 marbles. Which is a way he can arrange the marbles?
October 4, 2015

Math Help- Test Tomorrow!
We were doing review in class today and I remembered this one question I never got(though I don't have the specific question with me anymore). 1. It was a composite function question that asked for 'a' when f(g(a))=1. We were provided with the graphs of f(x) and g(...
September 22, 2015

Math
The function f(x)=x^2+5x+6 has zeros at -2 and -3. What are the zeros of the function y=-2f(x/11) ? Do you just plug x/11 into each x value in f(x)? Like f(x)= (x/11)^2+5(x/11)+6 (I exclueded the -2 because if I divide 0 by -2, it's still zero)? But then how can you find ...
September 21, 2015

discrete math
sorry its proof by cases
September 12, 2015

discrete math
4m+5n^2=20 (proof by cares)
September 12, 2015

Science
On a 120 km trip a motorist travels 60 km at 60 km/h. How fast must the motorist go for the next 60km in order to average 120km/h for the whole trip? i have attempted this question, yet the answers say it is impossible.
September 12, 2015

Physics
At a carnival, you can try to ring a bell by striking a target with a 8.46-kg hammer. In response, a 0.411-kg metal piece is sent upward toward the bell, which is 5.22 m above. Suppose that 34.4 percent of the hammer's kinetic energy is used to do the work of sending the ...
August 27, 2015

Physics
A skier slides horizontally along the snow for a distance of 12.1 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is 0.0343. Initially, how fast was the skier going?
August 27, 2015

physics
The person in the drawing is standing on crutches. Assume that the force exerted on each crutch by the ground is directed along the crutch, as the force vectors in the drawing indicate. If the coefficient of static friction between a crutch and the ground is 0.793, determine ...
August 12, 2015

physics
The drawing shows a wire tooth brace used by orthodontists. The top-most tooth is protruding slightly, and the tension in the wire exerts two forces, and , on this tooth in order to bring it back into alignment. If the forces have the same magnitude of 19.4 N, what is the ...
August 12, 2015

physics
A 72.2-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.53 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.44 m/s2?
August 12, 2015

Physics
helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 108-kg laser sensor which measures the thickness of the ice (see the drawing). The helicopter and the sensor move only in the horizontal direction and have a horizontal acceleration of ...
August 12, 2015

Physics
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 6.54 m/s. The car is a distance d away. The bear is 26.0 m behind the tourist and running at 10.4 m/s. The tourist reaches the car safely. What is the maximum possible value for d?
August 11, 2015

math algebra
oh ok thanks!
July 29, 2015

math algebra
Jo needs to know which of the following cannot be a prime number whenever p is a prime number greater than 2001. A. p-2 B. p+2 C. p+999 D. p+9990 Im stuck
July 29, 2015

math
Jo needs to know which of the following cannot be a prime number whenever p is a prime number greater than 2001. A. p-2 B. p+2 C. p+999 D. p+9990
July 29, 2015

Math
The roots of x^2-999999x-9999=0 and ? are additive intergers A. x^2+999999x-9999=0 B. x^2-999999x+9999=0 C. x^2+999999x+9999=0 D. x^2-9999x-999999=0
July 28, 2015

math
The roots of x^2-999999x-9999=0 and ? are additive intergers A. x^2+999999x-9999=0 B. x^2-999999x+9999=0 C. x^2+999999x+9999=0 D. x^2-9999x-999999=0
July 28, 2015

math
When n= ?, one term in the expansion of (2x^2+3x+2)^n is 1024. A. 4 B. 8 C. 9 D. 10
July 28, 2015

Math
One solution contains 25% as much water as alcohol and another solution contains 5 times as much water as alcohol. How many gallons of each solution must be mixed in order to obtain 7 gallons of the new solution which contains as much water as alcohol? Please help. I don't...
July 27, 2015

physics(kinematics)
Thanks guys, I really appreciate your effort.
July 19, 2015

physics(kinematics)
The acceleration of a particle is defined by the relation a=-8m/s2. Knowing that x=20m when t=4 and that x=4m when v=16m/s. Determine. A)the time when the velocity is zero. B)the velocity and total distance traveled when t=11s.
July 19, 2015

Biology
1 bacteria 2 I don't know 3 cells?
July 15, 2015

Biology
1) Mucus traps __________. 2) The windpipe is lined with sticky __________ and microscopic __________. 3) Tiny microscopic __________ are called cilia.
July 15, 2015

Chemistry Please Help Thanks!
Calculate the volume of solution that has a vapour pressure of 25.8 mbar and contains 200.3 g of galactose, C6H12O6, at a temperature of 22.0 °C. The vapour pressure of pure water at 22 °C is 26.40 mbar, the density of water is 1.00 g mL-1, and assume no change in ...
June 4, 2015

Physics
Two ropes are attached to a wagon, one horizontal to the west with a tension force of 40 N and the other east at an angle of 23° northward and a tension force of 50 N. Find the components of the net force on the cart
May 18, 2015

math
The ratio of girls to boys in Liza’s classroom is 5 to 4. How many girls are in her classroom if there is a total of 27 students?
May 14, 2015

calculus
Please do,I'm waiting...
May 8, 2015

calculus
Integral of 1/[x^2(1+x^2)]
May 8, 2015

math stuck please help!!!
A private plane traveled from Seattle to a rugged wilderness , at an average speed of 252 mph . on the return trip , the average speed was 180 mph . if the total time was 9 hours how far is Seattle from the wildness
May 8, 2015

calculus(urgent pls)
Integral of 1/[x^2(1+x^2)]
May 8, 2015

chemistry
Higher signal to noise signal ratios can be achieved in FTIR spectra compared to spectra from dispersive ir instrument. how is such a useful feat achieved in ftir
May 8, 2015

Calculus(URGENT PLS!!!)
Find the integral of (e^cosx)sinx
May 8, 2015

Maths(URGENT ANSWER please )
Find the sum to infinity of the series 1 + 4/3! + 6/4! + 8/5!
May 2, 2015

Maths(URGENT ANSWER please :
The book says the a answer is 2
May 2, 2015

Maths(URGENT ANSWER please :
Find the sum to infinity of the series 1 + 4/3! + 6/4! + 8/5!
May 2, 2015

Chemistry
I just need help with these three 1.Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water how many liters of carbon dioxide would be produced if 90.0 g of glucose completely reacts with oxygen C6H12O6(s)+ 6O2(g) -> 6H2O(g) + 6CO2 (g) 2. ...
April 22, 2015

If you answer these questions I will pass this cla
1.Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water how many liters of carbon dioxide would be produced if 90.0 g of glucose completely reacts with oxygen C6H12O6(s)+ 6O2(g) -> 6H2O(g) + 6CO2 (g) How many liters of carbon dioxide ...
April 22, 2015

Chemistry
Can I call someone and talk to them
April 22, 2015

Math
Will a cylinder always have a larger volume than a rectangular prism?
April 22, 2015

Math
The triangular prism has a height of 17.5 in and a base area of 14.5 in. The rectangular prism has dimensions of 10 x 5 x 6, and the cylinder has a height of 6 in and a dimater of 8 in.
April 22, 2015

Math
A cylinder fish tank has a volume of 301.44, a rectangular fish tank as a volume of 300, and a triangular prism tank has a volume of 253.75. Obviously the cylinder tank holds more water, but is there a mathematical reason why other than its bigger?
April 22, 2015

english
Thanks!
April 20, 2015

english
We have to find the right linking verb. 1.) It was she/her who was the director. She 2.) The owner of the recording equipment was me/I. I 3.) The engineer helping with the recording was her/she. She 4.) The person testing how the microphone sounded was I/me. I 5.) The ...
April 20, 2015

math
show that : cos(360*+x)-tan(180*-x)sin(360*-2x)cos(-x) divided by sin(90*+x)=cos2x
April 16, 2015

math
show that : cos(360*+x)-tan(150*-x)sin(360*-2x)cos(-x)/ sin(90*+x)=cos2x
April 16, 2015

Maths(URGENT pls!!!)
Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6)
April 10, 2015

Mathw(URGENT pls)
Yes,your answer is correct. Can you please show your workings?
April 9, 2015

Mathw(URGENT pls)
Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6)
April 9, 2015

Maths (URGENT!!!)
2).Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6)
April 9, 2015

math
now that we know its a typo can we just try and solve it?
April 9, 2015

math
im sick at home so i can't ask her
April 9, 2015

math
i know. That is how the problem was written
April 9, 2015

math
Bobby has been driving at a constant speed for the last 30 minutes. If Bobby is traveling at a speed of 70 miles per hour, which equation best represents the relationship between time in hours(c) and distance in miles (d). A. d = 70t B. t = 70d C. d = t + 70 D. t = d + 70 ...
April 9, 2015

Algebra
How much metal is need to build a trough 6 ft long and 2 feet wide?
March 30, 2015

Algebra
How much metal is need to build a trough 6 ft long and 2 feet wide?
March 29, 2015

physics
a force of 150N does 3.40kj of work over a displacement of 25.0m. what is the angle between the force vector and the displacement vector?
March 26, 2015

Physics
It takes a force of 53kN on the lead car of a 16-car passenger train with mass 9.1x 10^5 kg to pull it atconstant 45 m/s on level tracks. (a) What power must the locomotive provide to the lead car? (b) How much more power to the lead car than calculated in pan (c) Would be ...
March 23, 2015

Vector
A boy can swim with a speed of 26metre per minute in still water. Be wants to swim across a 150metere wide river from point A to point B directly opposite on the other side of the River.The river flows at 10metre per minute (a)if he always swims in the direction parallel toAB,...
March 22, 2015

statistics
There is a multiple choice exam with 24 questions, and five options each. If i guess every question, what is the probability that i will get exactly 15 correct.
March 17, 2015

Integration
I got stuck here,can you please proceed/complete it
March 12, 2015

Integration
Integral of XarcsinX dx. ii)X^2.arcsinX dx
March 12, 2015

L.A
Thank you!
March 10, 2015

L.A
is 10 b? 11, b? 12, c?
March 10, 2015

L.A
1. I sit on the bank in my special place 2. feel the breeze that life my hair 3. and watch the ripples run across the river 4. it is so peaceful here 5. deep enough to justify a fishing pole 6. quiet enough for my every thought 7. the perfect place to contemplate 8. the world ...
March 10, 2015

language arts
Be still, sad heart! and cease repining; Behind the clouds is the sun still shinning; thy fate is the common fate of all, into each life some rain must fall some days must be dark and dreary 1. from the context, what do you conclude is the probable meaning of repining in the ...
March 10, 2015

physics
A constant torque of 200Nm turns a wheel about its centre. The moment of inertia about this axis is 100kgm^2
March 3, 2015

physics(urgent answer pls)
A projectile is launched with 30m/s at an angle of 60degree with d horizontal (a) find d position of the projectile,and d magnitude and direction of its velocity at t=2s (b) find d time when d ball reaches the highest point (c) find d horizontal range
March 1, 2015

art
A conservator is working to restore a large marble statue from a Greek temple by scrubbing it with water and soap. What is a likely drawback to this preservation? A. Breaking of large sections of marble during scrubbing. B. Removing the aged look of the statue during scrubbing...
February 24, 2015

Physics
Thank you
February 18, 2015

Physics
A box slides down a 27.7° ramp with an acceleration of 1.25 m/s². The acceleration of gravity is 9.8 m/s². Determine the coefficient of kinetic friction between the box and the ramp.
February 18, 2015

maths(urgent answer pls)
1).Find the sum of the n terms of the series Sn=1^2 + 3^2 +5^2+...+(2n-1)^2 2).Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) +.... 3) Sum to n terms,the series 1.3.5 + 2.4.6 + 3.5.7 +.
February 15, 2015

MATHS(sum of series)
Finding the sum of the first 2 terms of the series with the above formula won't get you the right answer
February 15, 2015

MATHS(sum of series)
1).Find the sum of the n terms of the series Sn=1^2 + 3^2 +5^2+...+(2n-1)^2 2).Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) +.... 3) Sum to n terms,the series 1.3.5 + 2.4.6 + 3.5.7 +..
February 15, 2015

trig
I am currently taking a trig class. I need help understanding how to solve for sin,cos, and tan in problems which give an angle and a side length or the hypotenus. Any help would be muchly appreciated
February 11, 2015

LAnguage arts
Which sentence correctly uses a predicate pronoun as a subject complement? a. The last arrivals were Joe and I b. this year's soccer champions were lana and me c. the tribute deeply touched my brother and i d. my boyfriend became my best friend is it a?
February 10, 2015

language arts
I'm sorry I copied d wrong. It's "the weather today seems very humid today" is d still right?
February 10, 2015

language arts
is it d?
February 10, 2015

language arts
Which sentence contains a predicate adjective? a.The singers latest hit is a beautiful song b. The bus has arrived at last c. We bought four juicy apples at the farmers market d. the weather seemed nice today is it a or d?
February 10, 2015

language arts
1. Which sentence contains a predicate adjective? a. The singer's latest hit is a beautiful song b. The bus has arrived at last c. We bought four juicy apples at the farmers market d. the weather today seems very humid to me 2. which sentence correctly uses a predicate ...
February 10, 2015

English
Thanks!
February 9, 2015

English
Do you have anything?
February 9, 2015

English
No... She said to choose anything to write about. I love writing but I can never think of any good ideas. I want to have a really good paper. My problem is thinking of ideas. I wish I had a really imaginative mind.
February 9, 2015

English
I have to write a poem or a story for my English class. Do you have any ideas?
February 9, 2015

stats
If Gallup has used an sis of size n=1021 and obtained the sample proportion p= 0.52 ,you can calculate that the margin of error for 95% confidence would be
February 9, 2015

stats
470
February 8, 2015

stats
Joes test score was 450(1 standard deviation below the population mean550) A good guess for Joes test score is
February 8, 2015

Math
A=2600e^0.08^t % increase each year
January 28, 2015

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