Tuesday
July 29, 2014

Posts by John


Total # Posts: 6,199

Algebra
The percent decrease from 5 to 4 is how much less than the percent increase from 4 to 5? A. 0% B. 5% C. 15% D. 20% E. 25%

Pre-Calc
Vector v is (4√3,√3). Find the angle between v and i.

Math
No, again 168 is the total. So if you take 168-117(Which is the odds for winning) you get 51. So your odds against winning are 51/168

Math
17 out of 214. 79%. 17:214 is read like a fraction again. So if you divide 17/214 you get 79%. Not sure what exact answer you're looking for. But hopefully this can get you started.

Math
Again write it as a fraction... The total is 1 because you are looking at the chances of seeing 1 moose. Therefore to find the probability of not seeing a moose you need to take 1-.37 which is .63 so your probability of not seeing a moose is: .63/1

Math
You write it as a fraction. (How many students preferred supreme)/(Total college sophomores) 7/23 and that is already reduced.

introduction to computers
Which of the following search terms would direct terms would direct search engine to find pages about the windows vista operating system? 1"windows vista"2windows vista 3"windows""vista"4 "windows" vista

criminal similation
what is criminal similation

math
Given the funtion G(t) = t2 - 7t + 5, evaluate G(-1+h)-G(-1)/h

Math: Parabola, Vertex
Find the vertex of the parabola associated with the quadratic function. f(x)= -1/7x^2 - 2/11x + 1/121 (h,k)= What is the vertex of this quadratic function?

statistics
A bus company official wanted to estimate the mean time for the trip between two cities. A random sample of such trips gave a mean of 152 minutes and a standard deviation of 12 minutes. Construct a 98% confidence interval for the population mean time.

Tamucc
A 51kg object connected to a spring of 31N/m spring constant oscillates on a horizontal, frictionless surface with amplitude of 5cm. Find the speed of the object when when its position is 3cm.

physics
the acceleration is not right. you need to use this equation: Xf=Xi+Vi*t+(1/2)a*t^2 Xi=0,Vi=0,t=1.4,Xf=1,a=? 1=0+0(1.4)+(1/2)a(1.4^2) 1(2)= a(1.96) 2/1.96= a 1.0204 = a Then you follow the rest of the equation T = m(g+a)

physics
A block of mass 35 kg moves on the horizontal surface. If initially at rest whwat is the speed of the block after moving a distance of 6m when G=32?

Trigonometric Substitution
Trigonometric Substitution a. Explain why the substitution x = asin(Theta) guarantees that cos(Theta) is greater than or equal to 0 . b. What sort of restriction must we put on x and a so that the substitution x = asec(Theta)will guarantee that tan(Theta) is greater than or eq...

algebra
Describe in your own words how to solve a linear equation using the equality properties. Demonstrate the process with an example. Next, replace the equal sign in your example with an inequality by using the less than or greater than sign. Then solve the inequality.

Spainish
What is the correct answer to the question: ¿Qué haces los sábados?

geometry
Solve the following equation for x 3x + 23 = 7

calculus ( related rates )
a paper cup in the shape of a cone has a diameter of 10cm across the top, and is 8cm deep. if the cup is leaking out the bottom at 2pi cm^3/min, at what rate is thet area of the water surface ( only the top surface of the water) changing, when the cup has a the water depth of...

Physical Science 2
Given that iron has a density of 7.87 g/cm3, calculate the volumeof 100 g of iron and 50 g of iron

Chemistry
The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.500. If a trial's absorbance is measured to be 0.310 and its initial concentration of SCN– was 0.0010 M, the equilibrium concentratio...

CIS 115
There are three seating categories at a stadium. For a softball game, Class A # seats cost $15, Class B cost $12. and Class C seats cost $9. Design a modular # program that asks how many tickets for each class of seats were sold, and then # displays the amount of income genera...

English
Can you identify key qualities of drama and poetry which emphasize their performative qualities.

Physics
Two 0.33 kg blocks are attached to a 1.62m long string such that the lengths of the three string segments are equal. The ends of the string are attached to the ceiling at points separated by 1m. Each segment is 0.54m long. What is the tension in the horizontal segment. Answer ...

financial management
The HighT Company is a manufacturer of electronic products. The company is preparing a financial plan for the coming year and has the following independent projects under consideration: Project Initial investment ($ millions) Internal rate of return (%) A 220 20 B 380 11 C 300...

English
Can you help me summarize the major similarities and differences between the forms of the drama " Riders to The Sea",The poem " We Real Cool",and the short story "The Secret Life of Walter Mitty" and help me with at least one textual example of ea...

English
How is the more direct performative aspect of drama and/or poetry reflected in these forms? structure, language, technique, and style

science
Is an icing propane regulator concidered an endothermic reaction?

algebra
find the equation of the perpendicular line to y=1/2x+4 and passing through the point (1,-2) PLEASE HELP :)

Physics
A concave mirror is constructed so that a man at a distance of 26 from the mirror sees his image magnified 1.5 times. What is the radius of curvature of the mirror?

Physics
In the photoelectric effect, what happens to the stopping voltage when the light frequency is decreased?

Chemestry
Also please i'd really appreciate if someone could explain me also how to do it.. like from step 1 to end ~ Thanks.. @@..

Chemestry
The solubility product of copper(II) iodate, Cu(IO3)2, is 4 x 10-9 mol3 dm-9 at 25 °C. What is the solubility of copper(II) iodate in g dm-3? A 1.85 × 10-2 B 4.14 × 10-1 C 5.21 × 10-1 D 6.56 × 10

physics (simple question...need help pls!)
I Know, I did read it...But i am not provided with an answer choice of both. I am wondering, must the electron be moving in a straight line?

physics (simple question...need help pls!)
The magnetic field is generated by: A) an electron moving at constant speed in a straight line B) a proton moving in a circle C)a neutron moving in a circle D) none

Physics
Use Kirchhoff's junction theorem to explain why the total equivalent resistance of a circuit is reduced, not increased, by connecting a second resistor in parallel to another resistor.

Physics
By our sign conventions, if a battery is traversed in the actual direction of the current in it, what can you say about the sign of the change in electric potential (the battery’s terminal voltage)?

Physics
A platinum wire is connected to a battery.If the temperature increases, will the current in the wire increase, remain the same, or decrease?

Physics
To move 8.0 of charge from one electrode to the other, a 12- battery must do how much work?

propability
In basketball, Nicole makes 4 baskets for every 10 shots. If she takes 3 shots, what is the probability that exactly 2 of them will be baskets?

Political Science
Can anyone help me connect how the movie Robocop connects to Fascism?

Geometry
The surface area of acone with height 15 cm is 500π square cm. Find the radius of the cone. Round your answer to two decimal places.

Socials Studies (URGENT)
What does it mean by "influenced international relations"

Socials Studies (URGENT)
1. Why did Canada go to war in Korea and why was this war significant for Canada and the UN? Went to Korea to aid the south against the north from communism. (Don't know why it was significant. Any help?) 2. Describe two instances which Canada influenced international rela...

GMAT Algebra (NO CALC)
Thank you, my mistake on mixing up the answers when typing. I get number two now. But on number one, how do you get to =√(64*5+64*4) and then do you combine 64s for =√(64*(5+4)) thank you so much

GMAT Algebra (NO CALC)
It's been a few years since I've done algebra, and many more since we've been expected to do it without a calculator like the GMAT rules state. Please help me figure out these two problems without the use of a calculator. 1. __________________ √(16)(20) + (8)...

science
so it would most definitely have to be 5. microorganisms. final answer! lol

science
if removed from the life cycle, which of the following would have the greatest impact on the productivity of lawns. 1. robins 2. moles 3. toadstools 4. dandelions 5. microrganisms i think 4 b/c of the seedd that are easily blown away in the wind to regerminate

Math 100p
78 students 10 of them are freshmen what fraction of the class are freshman

maths
the price of meat increase from 110 to159 what percentage increase

trig
sec(90degrees -theta)

Science
A researcher is gathering data from four geographical areas designated: South=1;North=2; East=3; West=4. The geographical regions represents a. categorical data b. quantitative data c. directional data d. either quantitative or categorical data

business
180 Flip - a 180 degree boardslide varial kickflip 360 Flip – A 360 degree boardslide varial kickflip 50-50 – both trucks grinding on an object 5-0 – only the back truck grinding on an object Backside – turns or rotations in the direction your toes point t...

chemistry
A furnace that provides heat by burning methane gas must have the correct mixture of air and fuel to operate efficiently. What is the mole ratio of air to methane gas in the combustion of methane? Hint: Air is 20% oxygen.

chemistry
If the gas could took a hemispherical shape, what circular surface area would the gas cover? chemistry

Chemistry
phosgene an equilibrium reaction is the formation of phosgene an equilibrium reaction? how can you tell

Pre-algebra
Yes

science
IN SOLID LIQUID WHAT DO NOT MATTER

science
IN SOLID LIQUID WHAT DO NOT MATTER

math
factor the following trinomail w^18-9w^9y^5+14y^10

physics
A particle moves along the x axis. It is initially at the position 0.280 m, moving with velocity 0.080 m/s and acceleration -0.240 m/s2. Suppose it moves with constant acceleration for 3.10 s. (a) Find the position of the particle after this time. (b) Find its velocity at the ...

geometry
please help me?

geometry
how long are the congruent legs of isosceles triangle if its base and altitude to the base are 12cm and 8 cm respectively?

math
thanks

math
square root of 80?

Calculus
An isosceles triangle has perimeter 64m. Find the dimensions of this triangle that make its area a maximum

chem
what is the total mass of rn-222 remaining in an original 160g sample after 19.1 days? 1 2.5g 2 5.0 g 3 10g 4 20g how do you do this ?

math
Explain why the equation y=x squared can have two possible values of x for every value of y.

math
What would the future value of $6.5million dollars be after 5 years at 1.2% interest?

Cost Analysis
Does indirect costs often depend on some or all of the direct costs? How do we make that call.

Physics
i . imgur . com/Ki7wM.jpg

Physics
That's still not right but hopefully you can understand it. I wish it would just let me post a link to an image.

Physics
Figure: ---------______ -----___|------| F-->|-m-|--M---| ----|___|------| --------|______|

Physics
The two blocks in the figure, of mass m and M respectively, are not attached, but there is a coefficient of static friction u between them. The surface below the heavier block M is frictionless. What is the minimum force magnitude F required to keep the smaller block m from sl...

Body Structure and Function
The change in the number of olfactory neurons as we age increase the detection of warning smells

physic
A Carnot engine takes an amount of heat QH = 113 J from a high-temperature reservoir at temperature TH = 1170°C, and exhausts the remaining heat into a low-temperature reservoir at TL = 13.3°C. Find the amount of work that is obtained from this process

physic
Find the net change in entropy when 259 g of water at 0.0°C is added to 259 g of water at 97.5°C.

Astronomy
Which of the following developments was most directly responsible for the creation of rockets that were capable of going to the moon? A. gunpowder B. explosives C. single-stage rockets D. multistage rockets

Physics
I've tried a bunch, have no idea. Got the first part, no idea on the second one. A basketball, of mass m = 0.45 kg is dropped, from rest, from a stationary hellicopter at a high altitude. Use g = 9.81 N/kg. (a) If air resistance is negligible, using energy considerations a...

CALCULUS HELP PLEASE!!
Intergral from -2 to 2 (-2 is at the bottom of the integral sign and 2 is at the top) x^-2dx = -x^-1] (the bracket has a 2 at the top and -2 at the bottom) = -(2)^-1-(-(-2)^-1) = (-1/2)-(1/2) = -1 Is this true or false. I think it's false, but can someone explain to me why...

Calculus
Intergral from -2 to 2 (-2 is at the bottom of the integral sign and 2 is at the top) x^-2dx = -x^-1] (the bracket has a 2 at the top and -2 at the bottom) = -(2)^-1-(-(-2)^-1) = (-1/2)-(1/2 = -1 Is this true or false. I think it's false, but can someone explain to me why ...

MATH
How do you factor (x^2)+x+7?

keyboarding and word processing
When creating a 20-page newsletter in which you want different margin settings and other page formats within the multipage document, which one of the following Word features should you use?

Chemistry
The smaller molecules that make up complex carbohydrates are called A. sugars B. amino acids C. fatty acids D. nucleotides

statistics
A consumer group is testing a manufacturer’s claim that a new car model will travel at least 30 miles per gallon of gasoline. Assume that ��0:��=30 and ����:��<30, and that the population standard de...

statistics
what the error is: a) Grade Percent Frequency A 20% B 45% C 30% D 10% F 5% (b) The following table summarizes the grade breakdown on an exam in a small statistics class with 10 students. Grade Percent Frequency A 30% B 35% C 15% D 20% F 0%

statistics
Washington University banned smoking on the Hilltop campus starting in 2010. The student paper decides to do an opinion poll to see if current campus students/faculty/staff support the ban. Reporters are about to start asking a sample of 250 Hilltop people for their opinions. ...

engineering
How is bacteria used in genetic engineering?

physics-nuclear reactors
this sso guy is nuts if he thinks we should be able to do this...

math
according to what rule are the numbers arrange 8-9-7-10-12-20-28-29?

logos
Search "amazing logos" in a search engine like Google.

Math
Integrate[[E^(y/x),{y,0,1},{x,y,1}] Solution:0.859141 or .5*(e-1) I can't figure out what to do,and I tried substitution.

Chemistry
A quantity of sulfuric acid is added to 100. mL of water. The final volume of the solution is 111 mL and has a density of 1.14 g/mL. What mass of acid was added? Assume the density of the water is 1.00 g/mL.

Poetry
No thats my sister...we both suck at poety:( we are in the same class

Poetry
I need a seven long line iambic pentameter poem describing something. It can be anything. PLEASE HELP...I have no idea how to do this and my teacher will fail me. please please help

Poetry
Hang out with friends. I think I want my poem describing love. I came up with this one but its not in iambic pentameter form what so ever. and I have no clue how to change it Love, unconditional, unbreakable, unmistakable . A beating within your heart unstoppable. The realisti...

chemistry
Oh yeah! Thanks, so you would substitute: (10)(100) = (3)(x) to get: x = 333.33 mL, right?

chemistry
I need help with this problem: if you want to reduce the strength of 100 mL of 10 N NaOH to 3N, how much water would you need to add? Thanks in advance.

Physics
m = .150kg v = 40m/s Theta = 30 degrees Vh = 40*cos(30)>>>>Vh = 34.64m/s KE = (1/2)(.150kg)(34.64)^2>>>>KE = 90J

Physics
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