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April 2, 2015

Posts by allison


Total # Posts: 478

math
write an equivalent expression using radical notation 625 3/4 would this be 1/5^4 Otherwise I am lost
November 12, 2011

math
they are squre root symbols
November 12, 2011

math
Multiply (4ã6-12ã5)(2ã6+6ã5) Would the answer be 8ã64-72ã25 I donft think I am supposed to multiply the 4 and 6 or the 2 and 6
November 12, 2011

math
multiply ã7(ã10-ã6) so would this be ã70-ã42
November 12, 2011

math
rewrite with rational exponents (9ã5x^4y)^3 would this be (15x^64y^3)1/9 help
November 12, 2011

math
So would it be 10^11 right
November 12, 2011

math
Multiply and simplify by factoring ∜10,000*∜10,000,000 I get ∜100^9 I hope this is correct
November 12, 2011

Math
so the answer is 27 Square root symbol 2x^4
November 11, 2011

Math
Simplify by factoring Assume that all expressions under radicals represents non negative numbers 3square root symbol 162x8 I end up with 3x 3squareroot symbol 2x^5 I dont think this is correct help
November 11, 2011

Math
thank you
November 9, 2011

Math
Find the length of side a in the right triangle if b=12 and c=15 I have the length as 6 but I dont think this is correct Please help
November 9, 2011

Math
So was I correcdt
November 9, 2011

Math
What does it mean to refer to a 20 inch TV or a 25 inch tv set? Such ubits are refer to the diagonal of the screen. A 25 inch TV set also has a width of 20 inch what is its height? would I multiply 20 by the height to get the diagonal? I think the answer is 15 inches Please ...
November 9, 2011

english
Do you know what this matches and why? Primate:Primeval as Coelenterate:Medieval Deliberate:Archival Ingrate:Credible Migrate:Primal Thank you!
October 25, 2011

math
When you convert 1/4, you would divide 1 by 4 and get 0.25. So when dividing .39 by 250 you get... 0.00156
October 25, 2011

Physics Honors
An egg is thrown horizontally off the roof of SI, which is 60 meters high, with an initial velocity of 6.5 m/s. How long does it take to hit the ground? How far does it go in the x direction?
October 23, 2011

Physics Honors
Jason Kendall throws a baseball with a horizontal component of velocity 25 m/s. It takes 3.0 s to come back to its original height. Calculate its horizontal range, its initial vertical component of velocity and its initial angle of projection.
October 23, 2011

Physics Honors
How long will it take a shell fired from a cliff at an initial velocity of 800 m/s at an angle 30 degrees above the horizontal to reach the ground 150 meters below?
October 23, 2011

Physics Honors
A ball is kicked horizontally at 8.0 m/s from a cliff 80 meters high. How far from the base of the cliff will the stone strike the ground?
October 23, 2011

Physics Honors
A football is kicked with an initial velocity of 25 m/s at an angle of 45 degrees with the horizontal . Determine the time of flight, the horizontal distance, and the peak height of the long jumper.
October 23, 2011

Physics Honors
A soccer ball is kicked horizontally off a 22.0 meter high hill and lands a distance of 35 meters from the edge of the hill. Determine the initial horizontal velocity of the soccer ball.
October 23, 2011

Physics Honors
A pool ball leaves a 0.60 meter high table with an initial velocity of 2.4 m/s. Predict the time required for the pool ball to fall to the ground and the horizontal distance between the table's edge and the ball's landing location.
October 23, 2011

Physics Honors
A basketball is thrown horizontally from a window that is 22 meters high. If the initial velocity of the ball 18 m/s, find how long the ball takes to reach the ground and how far the ball lands from the building?
October 23, 2011

Physics Honors
The same rock is thrown upwards at an angle of 45 degrees. It travels 10 meters up to its maximum height. How far will it travel before it lands?
October 23, 2011

Physics Honors
A rock is thrown horizontally from a cliff overlooking the ocean. If the cliff is 45 meters high and the rock is thrown at 18 m/s, what is the angle at which it strikes the ocean?
October 23, 2011

Physics Honors
A bullet is fired from a rifle, emerging at 340 m/s. It strikes a sandbag some distance away, having lost 10% of its velocity due to air resistance. if it penetrates the sandbag to a depth of 12 meters, how long did it take for the bullet to come to rest in the bag?
October 23, 2011

Physics Honors
A pitcher throws a fast ball horizontally at 42.1 m/s How far does it drop before crossing the plate, 18.3 meters away?
October 23, 2011

Physics Honors
A bullet is fired from a rifle, emerging at 340 m/s. It strikes a sandbag some distance away, having lost 10% of its velocity due to air resistance. if it penetrates the sandbag to a depth of 12 meters, how long did it take for the bullet to come to rest in the bag?
October 23, 2011

U.S History
Iroquois
October 17, 2011

language
how has workng together changed history?
October 12, 2011

OChem
john tsai you're a chink dont think that i dont know you
October 12, 2011

OChem
Typo: What intermolecular forces are important in the binding of molecules to the ADSORBENT in ADSORPTION chromatography?
October 12, 2011

OChem
What intermolecular forces are important in the binding of organic molecules to the absorbent in absorption chromatogrpahy? Select all that apply. A) London forces B) Van der Waals forces C) Covalent Bonding D) Hydrogen bonding E) Dipole-dipole interactions F) Lewis acid-base ...
October 12, 2011

chemistry
A laboratory has a 2.0-mol sample of pure selenium and a 2.0-mol sample of pure chromium. How many more grams of selenium than chromium does this represent?
October 10, 2011

Physical Science
Can someone please help me with this question Im not really sure what the question is asking, I don't understand at all. Please explain. With sound, you get harmony when the frequencies of two sounds are in the ratios of small integers - eg, two sounds with one frequency ...
October 5, 2011

science
The sun shines down on a mirror. The angle between the incident rays of sunlight and the vertical is 60o. What is the angle between the reflected rays and the vertical? I think the answer is 60 am i correct
October 4, 2011

Calculus
yes I know that but I need to steps for how you find the derivative.
October 2, 2011

Calculus
thanks allie but i need someone to show the work to how they got those answers too please :)
October 2, 2011

Calculus
Let f(x)=x^2+5x-3. Find f′(x) and find f′(1).
October 2, 2011

Calculus
Take the derivative of the following functions. You do NOT need to simplify. h(x)=(6x^3+2x)/(x^2-3x+5)= F(x)=(5x^2+1)(3x-2) =
October 2, 2011

Calculus
Suppose that f(2)=3 and f′(2)=5. Let g(x)=x^3f(x). Evaluate g′(2). Your final answer should be a single number.
October 2, 2011

Calculus
Take the derivative of f(x) = 4x^3+(7/x^2).
October 2, 2011

Calculus
Let f(x)=21−x^2 The slope of the tangent line to the graph of f(x) at the point (−4,5) is ______ . The equation of the tangent line to the graph of f(x) at (−4,5) is y=mx+b for m=______ and b=_______.
September 29, 2011

Calculus
For what values of x is the tangent line of the graph of f(x)=8x3+36x2+46x−72 parallel to the line y=−2x+1.9 ? Enter the x values in order, smallest first, to 4 places of accuracy: x1= ≤ x2=
September 29, 2011

Calculus
If f(x)=(3x)/(1+x^2) find f′(4). Use this to find the equation of the tangent line to the curve y=3x1+x2 at the point (4,0.70588). The equation of this tangent line can be written in the form y=mx+b where m is: and where b is:
September 29, 2011

Calculus
If f(x)=(3)/(x^2) find f′(4).
September 29, 2011

Calculus
Let f(x)=sqrt(3+2x) f′(5)=
September 29, 2011

help please :)
yes it is D
September 27, 2011

PHYSICS! HELP PLEASE
A shopper pushes a cart 43 m south down one aisle and then turns 90.0° west and moves 15 m. He then makes another 90.0° turn and moves 10 m. (a) What is the largest possible displacement of the shopper? ______ m _____° counterclockwise from west (b) What is the ...
September 27, 2011

Physics!
A quarterback takes the ball from the line of scrimmage, runs backward for 10 yards, and then runs sideways parallel to the line of scrimmage for 4 yards. At this point, he throws a 32 yard forward pass straight down the field. What is the magnitude of the football's ...
September 27, 2011

physics
A 50 gram ice cube is cooled to -10oC in the freezer. How many calories of heat are required to heat it until it becomes liquid water at 20oC? (The specific heat of ice is 0.5 cal/goC.) Answer A) 1250 cal. B) 4000 cal. C) 5000 cal. D) 5250 cal. Can someone please help me solve...
September 26, 2011

Science
You have two cups, one containing 100 g of ice at 0oC, the other containing 100 g of water at 80oC. You pour the hot water into the cup containing the ice. What do you wind up with? A) 100 g of 0oC water and 100 g of 80oC water. B) 50 g of 0oC ice and 50g of 0oC water. C) 200 ...
September 26, 2011

science
thrs jguyvftrd
September 23, 2011

Math
Solve by Elimination 2x+3y=2 4x+6y=4 I got the answer there are infinitely many solutions I hope this is correct? Please help
September 23, 2011

Math 116 A
9<x<14 Write an interval notation
September 23, 2011

algebra help bad!!!!
Solve 2x+9 greater or equal to 5 and 2x-13greater or equal to 9 what is the solution? I have x=-2 and x=2 how do I write this {x x> what?
September 22, 2011

math help asap
what is the solution to 2x+9greater or less then 5 and 2x-13greater or equal to -9.
September 22, 2011

Matth 116
9/10th (3+8x)+3greater or equal to 15 what is the solution to this?
September 22, 2011

Science 6th grade
with epoxy or metal rods
September 22, 2011

Math
Independent or dependent?
September 22, 2011

Algebra 116 A
So would this be Parentases? Because the 9 and 14 are not included as the solution?
September 22, 2011

Physical Science
The diving board is 3m above the floor thats all the information we were given
September 11, 2011

Physical Science
A boy with a mass of 30 kg jumps off a 3 m diving board. How much kinetic energy does he have just before he hits the water? Answer none. 90 N. 900 J. 1800 J.
September 11, 2011

physical science
A boy with a mass of 30 kg stands motionless at the end of a diving board 3 m above the floor. The boy has: Answer no energy. kinetic energy only. potential energy only. both kinetic and potential energy.
September 10, 2011

physics
If a speeding car slams into a brick wall and comes to rest, how will the impulse that acts on it compare with gradually slowing down and coming to rest?
September 5, 2011

Physics
a transport truck pulls on a trailer with a force of 600 N {E}. the trailer pulls on the transport truck with a force: a) zero b) of less than 600 N[W] if the truck is slowing down. c) equal to 600 N [W] only if the truck is moving at constant velocity d) equal to 600 N [W] no...
August 27, 2011

Physics! - PLEASE HELP
a little spider monkey (let's call her flo) has stolen a bunch of bananas from her older brother charley and is now running away from him with the bananas in hand. she sees salvation in a long vine and grabs the bottom, hoping to swing away. a) is flo, who has a mass of 5....
August 26, 2011

physics for bobpursley
a little spider monkey (let's call her flo) has stolen a bunch of bananas from her older brother charley and is now running away from him with the bananas in hand. she sees salvation in a long vine and grabs the bottom, hoping to swing away. a) is flo, who has a mass of 5....
August 26, 2011

Physics! - PLEASE HELP
for b) does that mean that even when he grabs onto the vine with her, their velocity is 4.8 m/s? I am in grade 11 and have not learned momentum.
August 26, 2011

Physics! - PLEASE HELP
a little spider monkey (let's call her flo) has stolen a bunch of bananas from her older brother charley and is now running away from him with the bananas in hand. she sees salvation in a long vine and grabs the bottom, hoping to swing away. a) is flo, who has a mass of 5....
August 26, 2011

History
they think that it doesn't matter that different stuff matters like t.v. video games
August 25, 2011

calculus!URGENT
thank you soooooo much!
August 17, 2011

calculus!URGENT
Show that the tangent line to the curve y=x^3 at the point x=a also hits the curve at the point x=-2a. Any help?! PLEASE!
August 17, 2011

Chemistry
Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary.
August 10, 2011

Calculus
THANK YOU! I get it now!
July 26, 2011

Calculus
At 2:00PM boat X is heading due west at 15mph towards a dock that is exactly 15 miles away. At the same time boat Y leaves the dock traveling due north at a speed of 20mph. At what time will the boats be closest together?
July 26, 2011

PHYSICS!!
can you tell me exactly what you did instead of just giving me the formula? please and thank you
July 13, 2011

PHYSICS!!
the answer i got is 288600W
July 13, 2011

PHYSICS!!
A car's engine can accelerate a car from rest to 30 m/s in 6 s. if the car's mass is 1300 kg, what is the power of the engine? can someone give me the answer because i just want to verify it with my own? thank you!
July 13, 2011

Physics! - PLEASE HELP
A 75 kg passenger in a van is wearing a seat belt whent he van moving at 15m/s, collides with a conrete wall. The front end of the van collapses 0.50 m as it comes to rest. a) what was the paseenger's kinetic energy before the crash b) What average force did the seat belt ...
July 12, 2011

Physics - Work
A tennis racket is in contact with a 55 kg ball for 0.0050 s changes the ball's velocity from 30 m/s [E] to 40 m/s [W] over a distance of 0.0001 m. how much work is done on the tennis ball by the racket?
July 10, 2011

Physics
consider a cart being pulled up an inclined plane by a student during a Physics lab. The applied force on the cart is 18 N is directed parallel to the incline to cause the cart to be displaced parallel to the incline for a given displacement of 0.7 m. The initial energy plus ...
July 8, 2011

Physics
consider a cart being pulled up an inclined plane by a student during a Physics lab. The applied force on the cart is 18 N is directed parallel to the incline to cause the cart to be displaced parallel to the incline for a given displacement of 0.7 m. The initial energy plus ...
July 8, 2011

how to make $60 two ways using 3 coins
You would have to use a 50 cent coin and then two nickels t equal 60 cents.
July 6, 2011

Physics - Newton's first law
A pair of fuzzy dice hang from the rear view mirror of a car. For each of the motions indicate which way the dice would move and why: a) constant velocity forward b) speeding up backward c) slowing down forward I understand that when the car's state of motion changes, in ...
July 4, 2011

Nutrition
How many grams of nitrogen are contained in a 2,500 kcal diet that provides 15% of the energy as protein? What would be the approximate weight gain of a person who consumes an excess of 500 kcal daily for one month? Which of the following is an FDA approved over-the-counter ...
July 4, 2011

nutrition
How many grams of nitrogen are contained in a 2,500 kcal diet that provides 15% of the energy as protein? What would be the approximate weight gain of a person who consumes an excess of 500 kcal daily for one month? Which of the following is an FDA approved over-the-counter ...
July 2, 2011

Physics!
I know I have to find angular speed in order to find the radius of orbit. With the radius of orbit and velocity I can find centripetal acceleration. I then apply Newton's 2nd Law to solve for the mass. I am stuck on finding angular speed...
June 3, 2011

Physics!
The two stars in a certain binary star system move in circular orbits. The first star, Alpha, has an orbital speed of 36 km/s. The second star, Beta, has an orbital speed of 12 km/s. The orbital period is 137 d. a) What is the mass of the star alpha? b) What is the mass of the...
June 3, 2011

english
Does anyone know how to write a universal theme paper?
May 16, 2011

Physics HELP!
You are at the controls of a particle accelerator, sending a beam of 3.90×10^7 m/s protons (mass m ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unknown element. All...
May 11, 2011

precalc
I am really struggling with a bunch of problems. Any help with any of the following would be greatly appreciated. Thanks 1. ln e^(ln x) - ln(x - 3) = ln 8 2.3e^(6x - 2) = 18 The word problems, especially, are killing me. 3. In the formula A = Iekt, A is the amount of ...
May 6, 2011

Math
I know that I have to use log to solve, but I am having a hard time with the word problems. Please help Coffee is best enjoyed at a temperature of 121° F. A restaurant owner wants to discover the temperature T at which he should serve his coffee so that it will have ...
May 6, 2011

physics
If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...
May 5, 2011

Physics
It is a fact.
May 4, 2011

Physics
If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...
May 4, 2011

math
10.81 yrs for the first question 9 yrs for the second
May 1, 2011

math
So I think I have got these down I just really want to double check the answers to these two word questions. Thanks How long will it take for $9500 to grow to $36,300 at an interest rate of 12.4% if the interest is compounded continuously? Round the number of years to the ...
May 1, 2011

MATH
2, -4, 8,... The first term of the sequence above is 2, and every term after he first term is -2 times the preceding term. How many of the first 50 terms of this sequence are less than 100? (A) 22 (B) 25 (C) 28 (D) 30 (E) 37
April 24, 2011

physics
The 4.00-kg block in the figure is attached to a vertical rod by means of two strings. When the system rotates about the axis of the rod, the strings are extended towards the rod and each have a length of 1.25. The length from the upper string and lower string on the rod is 2...
April 21, 2011

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