Tuesday
December 6, 2016

# Posts by tristan

Total # Posts: 132

Math
There are 4 sections of seat in the playhouse theatre. Each section has7 groups of seats.each group has 25 seats. How many seats are there in the theater? 25Ã—7=175 seats
October 31, 2016

math
Juanita is making necklaces to give as presents she plans to put 15 beads on each necklace beads are sold in packages of 20 what is the least number of packages she can buy to make necklaces and have no beads leftover over
September 27, 2016

Chemistry
"Calculate the enthalpy of vaporization of water given that, when 5.00 grams of steam (gaseous H2O) at 100°C was introduced into a beaker containing 500 grams of water at 20.0°C, the temperature rose to 26.2°C." q_H2O(l) + q_H2O(g)= E nΔH_vap + ...
September 6, 2016

chemistry
The gas in a fixed container was at STP before is was lifted by a balloon into the atmosphere. What would the new pressure be in kPa if the temperature at a higher altitude was 268 K? a .00138 kPa b 103 kPa c 99.4 kPa d .982 kPa
May 4, 2016

We got 5/8. Is that correct? Thank you so much...
April 20, 2016

Bryan has 3 nickels, 3 dimes, and 2 quarters. What fraction of the coins is either a dime or a quarter?
April 20, 2016

Physics
samuel drives his bicycle east at a velocity of 10.0 m/s. he then increases his speed in the same direction to 25.0 m/s in 3.50 s. what is his average speed
March 8, 2016

History
Thanks
February 4, 2016

History
Is it b?
February 4, 2016

History
I think it's d
February 4, 2016

History
Which of the following best describes why the port of New Orleans was so important to the South during the Civil War A) it was the last stronghold left in the south in 1864 when it became the capital of the Confederacy B) it was one of the largest Ports in the south and ...
February 4, 2016

algebra
Consider that the half-life of Polonium-210 is 140 days.What approximate daily percentage of decay does Polonium-210 demonstrate?% (Round to two decimals.)(Hint: use the Rule of 70 backwards by dividing by the half-life period instead of the rate.) What percentage of the ...
October 1, 2015

Algebra
There were 170 tickets sold in 1 day and amount money made \$1475.00. Adult tickets cost \$10.00 and children \$7.00. How many adult and children tickets were sold.
September 22, 2015

Geometry
The area of triangle ABC is _____. A. 60 u2004-05-02-04-00_files/i0060001.jpg B. 65 u2004-05-02-04-00_files/i0060002.jpg C. 130 u2004-05-02-04-00_files/i0060003.jpg D. 150 u2004-05-02-04-00_files/i0060004.jpg
June 22, 2015

Algerbra
y=-3x+10-x-2
April 21, 2015

FIN370
The present value of this investment is \$3.33 per year (if you are trying to pay a little each year proceeding the last) Hope this helps and if I'm not correct you should see someone correct me pretty quickly.
February 1, 2015

Algebra 1
I am fairly sure the answer would be represented by the following polynomial: -pi(24x)^2 But if anyone else comes up with something they're completely sure is correct, go with that answer instead.
January 30, 2015

grammar
Not to be a Grammar Nazi or anything, but I'm pretty sure it's spelled grammar.
January 26, 2015

Language arts check work
2 was A and 5 was A lol after rereading it I get that last one!! Why would anyone welcome dismal news dang it!
January 26, 2015

Language arts check work
1. In these lines from “Life Doesn’t Frighten Me,” which words rhyme? Panthers in the park / Strangers in the dark / No, they don’t frighten me at all. A.Panthers, park B.Strangers, dark C. park, dark <-----This one D. dark, all 2. The speaker in “...
January 26, 2015

Physics-Atwood's Machine
A 5 kg block rests on a horizontal surface. Determine the horizontal force required to accelerate the block at 3 m/s^2. The frictional coefficient is 0.5. Fnet=mass(accer.) FH=5kg (3m/s^2)= 15N I don't know what to make of the frictional coefficient
November 13, 2014

Math
At a T.I concert, the ratio of the number of girls to the number of boys is 2:7. If there are 250 more boys than girls, how many girls are at the concert?
August 10, 2014

Electro 1
Two resistors Ra= 1.95 ohms and Rb = 0.05 ohms are connected in parallel and take a total of 50A. What is the current trough each resistor.
July 7, 2014

Electro 1
A 6 ohms load is connected to a 119.6volts source through a pair of 0.25 ohms conductors. calculate a) the load current and voltage. b) the voltage drop in the wires.
July 7, 2014

Math
A tree is 18 feet tall and casts a shadow that is 22 feet long. How fat is it from the end of the shadow to the top of the tree
April 21, 2014

physics
In the Millikan experiemnt, what error might result if only a few oil drops were used, or if all the oil drops contained an even number of charges.
April 21, 2014

math
The surface area of this rectangular prism is 256 square millimeters. What is the value of l? the given numbers are h=4 w=8
April 10, 2014

physics
Two electrons start at rest with a seperation of 5e-12 metres. Once released, the electrons accerelate away from each other. Calculate the speed of each electron when they are a very large distance apart.
March 27, 2014

science- Physics
Two electrons start at rest with a seperation of 5e-12 metres. Once released, the electrons accerelate away from each other. Calculate the speed of each electron when they are a very large distance apart.
March 27, 2014

english
I have to classify this sentence: Wow!(I) I(sn)/saw(v) a(a) falling(adj) meteor(do) clearly(adv) during(p) the(a) night(op). Is this correct?
March 13, 2014

physics
A 2000 kg is released from a height 20m, and hits a 700kg car at the bottom of the swing. The car is sent horizontally 30, before coming to a stop, and the ball is going 12m/s immediately after they hit. What force of friction is acting between the car and the ground?
February 18, 2014

physics Momentum and impulse
You want to close an open door by throwing either a 400g lump of clay or a 400g rubber ball at it. You throw at the same speed, but the clay sticks to the door and the ball bounces off it. Which works bette?
February 10, 2014

Math- Vectors
Whta is the equation that has the same x-intercepts as L1:[x,y,z]= [3,5,-1] + t[4,-10,2] and is perpendicular to L2:[x,y,z]= [5,8,-2] + s[3,7,1]
January 29, 2014

Vectors
ok thx
January 28, 2014

Vectors
I think we have to assume friction is not important and the object is on earth.
January 28, 2014

Vectors
An object on a ramp is being held in place by a rope attached to the top of the ramp. If the tension in the rope is 215 N, what is the mass of the object.
January 28, 2014

The population of a small town is modeled by the function p(t)=20(4t+3)/2t+5, where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. The town will need its own transit system if the population exceeds 50,000. Will the town's ...
January 23, 2014

Vectors
Consider the lines L1: [x,y,z] = [4,-2,k] + s[1,1-3] +t[2,3,1] Determine a value of k that is 10 units away from the plane with the equation 10x-7y+Z-28=0
December 16, 2013

math
Find the equation of the plane equidistant from the points (1,8,3) and (4,10,7)
December 16, 2013

math
Find the equation of the plane equidistant from the points (1,8,3) and 94,10,7)
December 16, 2013

Physics (fix)
In a string and pulley problem, will friction increase or decrease the tension.can you please explain if you can?
December 2, 2013

physics-
Thx for Anne for this answer. Just post this here if someone wonders to here.
December 1, 2013

physics-
Adding friction to a pulley problem, regardless of if a mass in on an incline or not, will almost always increase the tension in an atwood machine- type pulley problem. This is because friction will always oppose motion, so there will be more forces working against the force ...
December 1, 2013

physics-
In a string and pulley problem, will friction increase or decrease the tension.can you please explain if you can?
December 1, 2013

science
1. B 2. C 3. C 4. A 5. D These are PROBABLY the right answers. I am 80% sure these are the right answers.
October 25, 2013

science
If you do have the same questions as me #3 would be C. Because heterozygous cow crossed with a homozygous cow the Punnett square would be 1 B at the top left, 1 b at the top right and the left would just be b and b.
October 25, 2013

Physics
A student throws a baseball at a large gong 45 m away and hears the sound of the gong 1.35258 s later. The speed of sound in air is 330 m/s.What was the average speed of the base- ball on its way to the gong? (For simplicity, assume its trajectory to be a straight line.) ...
September 29, 2013

Physic
A 61-kg skier, coasting down a hill that is an angle of 23 to the horizontal, experiences a force of kinetic friction of magnitude 72N. The skier's speed is 3.5m/s near the top of the slope. Determine the speed after the skier has travelled 62m downhill. Air resistance is ...
August 14, 2013

Algebra 2
Solve for x under the assumption that x > 0. Enter your answer in interval notation using grouping symbols. x - (10/x) < 9 I need someone to show me how to work through this type of problem, I don't understand it.
May 13, 2013

Algebra 2
Find the equation of the asymptotes for the hyperbola defined by the equation: ((y + 4)^2 / 36) - ((x - 3)^2 / 25) = 1
May 11, 2013

Algebra 2
Solve the equation |2x − 5| £ 9
May 9, 2013

Algebra 2
A 14 gram sample of a substance that's used to preserve fruit and vegetables has a k-value of 0.1092. Find the substance's half-life, in days. Round your answer to the nearest tenth.
May 7, 2013

Well I did a Pendulum lab. The length of my pendulum on a string was 95 centimeters and it took 19.15 seconds to complete the 10 cycles. Please help me to find the frequency.
May 4, 2013

math
Two angles between 0 degrees and 360 degrees have a tangent undefined. What are the angles? Why is the tangent undefined for each of those?
March 18, 2013

math
How do I do this? Without a calculator, determine two angles between 0 degrees and 360 degrees that have a cosine of negative square root 3 over 2.
March 18, 2013

Math
Solve the proportion. Where necessary, round to the nearest hundredth. 8 over 2 = x+3 over 4
February 25, 2013

math quiz tomorrow
I am having problem graphing with these two equations 2(3^x)-3 and –3(3^–x)
February 19, 2013

math
a soccer ball is kicked from the ground. after travelling horizontal distance of 35m,it just pass over a 1.5m tall fence before hitting the ground 38m from where it was kicked. Determine the equationi of a quadratic function that can be used to model the parabolic path of the ...
January 20, 2013

ratio and rate
hummingbird has a wing beat of 200 beats per second. a bout how many wing beats would it have in 3 minutes
November 24, 2012

math
A recipe for 24 cookies calls for 6 tablespoons of sugar. If you make 36 cookies and use 10 tablespoons, will the cookies taste the same? Explain
November 21, 2012

math
A package of spaghetti weighs 266 grams. How many ounces does the package weigh? 1 oz = 28 g
November 21, 2012

math help me pls
these answers are wrong 2,3,and 4 are wrong number 2. is 2x+11, number 3. is 15y+14, and number 4 is 27(3-p)
November 11, 2012

Physics
A rotating cylinder 7.95 kilometers in radius is designed to be used as a space colony. With what period must it rotate so the residents on it feel as heavy as they would on Earth?
November 11, 2012

social studies
in the mid-1990s,investers backed many ____ in hopes of making a huge profit.
October 9, 2012

math
What is 7/8 divided by 3/9?
August 28, 2012

Experimental Chemistry
(Experiments in synthetic chemistry) For heating under reflux, must the solvent level in the round bottomed flask be above the oil level (in the hot oil bath)? Why? Thanks.
July 22, 2012

sCIENCE PLZZZZZZZZ HELP
B a D D i got a 100 percent i took the same test
April 11, 2012

math
the teacher told each student to bring in 3/8 yard of string. they all brought in a total of 13 yards. how many students will be in the class
April 4, 2012

science
True or false, at 25 degrees celsius H+ ion concentration in pure water is 7 x 10^ -7 mole per liter?
March 21, 2012

Geometry
A circular flower bed is sectioned off. The arc intercepted by the 120 degree central angle is to be bordered with marigolds. The garden has a diameter of 63 inches. Circumference = Pi * diameter, Pi = 22/7. If you plant the marigolds about eight inches apart what is the least...
November 28, 2011

social studies
how to find the mummification process.
November 2, 2011

I have an input 25 and output of 15 the next set is input of 30 output of 18 how do I figure out the rule
September 15, 2011

Mediation
How does a human services worker integrate the use of mediation, or third party neutrality, when he or she also serves as an advocate for the client and is an employee of the agency
August 17, 2011

math
which is greater 1.8 or 1.08
April 28, 2011

I need to know how to solve 6- 3/4= Not sure how to get the answer??
April 11, 2011

Accounting III
What arguments can be advanced in favor of treating fixed manufacturing overhead costs as product costs? What arguments can be advanced in favor of treating fixed manufacturing overhead costs as period costs? Which arguments do you find to be the most valid? Explain.
April 5, 2011

math
Thanks.
March 28, 2011

math
Dana buys a piece of carpet that measures 20 square yards. Will she be able to completely cover a rectangular floor that measures 12 ft 6 in. by 16 ft 6 in.?
March 28, 2011

pre algebra
1/2 divided by 2/3=
February 16, 2011

American History
Cant figure this one out... How did Ferdinand and Isabella’s political strategies and religious beliefs shape the encounter between early Spanish explorers and the indigenous peoples of the Americas?
January 28, 2011

History
thanks
January 28, 2011

History
What is the significance of providing an official charter, such as was given to Sir Walter Raleigh by Queen Elizabeth?
January 28, 2011

Nico is saving money for his college education. He invest some money at 8%, and \$1300 less than that amount at 5%. the investments produced a total of \$234 intrest in 1 yr.How much did he invest at each rate?
January 26, 2011

Can somebody help me i still don't get how to do this?
January 26, 2011

would it be 23 or 2300
January 26, 2011

Nico is saving money for his college education. He invest some money at 8%, and \$1300 less than that amount at 5%. the investments produced a total of \$234 intrest in 1 yr.How much did he invest at each rate?
January 26, 2011

MATH
3040...okay thanks
January 26, 2011

MATH
I got x=330 what do i do from there. How do i get the speed of each plane from there?
January 26, 2011

Math
6<1-7m<13
January 22, 2011

chemistry
-Suppose you carry out TLC separation of acetaminophen and ibuprofen on silica ggel using a nonpolaar developing solvent. which should have a higher Rf? -Assuming that the drug components whose spots you identified dissolved completely when you stirred the tablet with 1:1 ...
November 29, 2010

Algebra 2
Drwls- Unfortunately your hints do not help as I have no clue how to even start the problem. Please do the problem and then maybe I will understand.
September 15, 2010

Algebra 2
factor each polynomial 36p^2-49q^2
September 15, 2010

math
subtract 1 from 36. You will get 35, so 7x=35 divide 7x=35 by 7 to get x by itself so your new equation will be x=35/7. So x =5
September 15, 2010

math
carlos needs to chain his dog, he attaches a 13-meter chain to the corner of a dog house that measures 9m by 5m. How much area does the dog have to run around? Round to the nearest tenth.
September 15, 2010

Simplify 8(2^x-1)=64
September 14, 2010

Simplify (10x^2-6x-x^3)+(9x+x^3+5x^2)
September 14, 2010