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March 25, 2017

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Posts by Alex

Total # Posts: 3,677

Math
The x-intercept of a graph is when y is 0. 5x - 12(0) = 60 x = 12 So our point is (12, 0). Likewise, the y-intercept is when x is 0. 5(0) - 12y = 60 y = -5 So our point is (0, -5). The distance between two points is given by the formula: Dist = sqrt{(x0 - x1)^2 + (y0 - y1)^2...
November 6, 2016

communications
what is the most distorted or misinterpreted topic on the internet?
November 4, 2016

Physics
A)A 100kg person is riding a 10kg bicycle up a 25degree hill. The hill is long and the coefficient of static friction is 0.9. How much force does the person have to apply in order for her to ride 10m up the hill at constant velocity? B) If the person now starts from rest from ...
November 3, 2016

math
Given that [sin(A-B)/cos(A+B)]=1/3[tan(A-B)], find the values of cosB if sinA=1/2
November 3, 2016

social studies
1.  How did Washington handle the war between Britain and France?  (1 point) The U.S. formed an alliance with France to fight against Britain. The U.S.&...
November 1, 2016

Physics
Six dogs pull a two-person sled with a total mass of 280 kg. The coefficient of kinetic friction between the sled and the snow is 0.080. The sled accelerates at 0.65 m/s2 until it reaches a cruising speed of 15 km/h. What is the team's maximum power output during the ...
October 30, 2016

Physics
A pile driver lifts a 450 kg weight and then lets it fall onto the end of a steel pipe that needs to be driven into the ground. A fall of 1.5 m drives the pipe in 45 cm. What is the average force exerted on the pipe?
October 30, 2016

HCC
A manufacturer of hospital supplies has a uniform annual demand for 80,000 boxes of bandages. It costs $10 to store one box of bandages for one year and $160 to set up the plant for prduction. Haw many times a year should the company produce boxes of bandages in order to ...
October 30, 2016

social studies
explain how the civic virtues of the ancient romans inspired the founding fathers vision of how citizens should conduct themselves in the united states
October 27, 2016

english
Tanya's pet hamster likes sleeping behind the computer. I have to pick out the prepositional phrase and then identify its object.
October 25, 2016

history,college
What are some secondary sources and primary sources about Joan of Arc's impact on how Christianity viewed females after Joan's death?
October 24, 2016

Math
A rectangular shaped desk has a length of 36 inches and a width of 16 inches. A desk with a similar shape has a width of 24 inches. What is the length of this desk?
October 20, 2016

Math
A 6-foot person standing 15 feet from a streetlight casts a 10-foot shadow. Two similar triangles are formed. One triangle is formed by the person and the shadow that the person casts. A second triangle is formed by the streetlight and the ground from the base of the ...
October 20, 2016

Science
What was the answer???
October 19, 2016

math
the tallest woman who ever lived cast a shadow of 10 feet while a 3 foot vertical stick cast a shadow of 3' 11". how tall was the woman to the nearest inch?
October 18, 2016

Art History, college
Q: How did the Babylonians make the Ishtar Gate blue (and all its other colors)? A: The Babylonians make the Ishtar Gate blue (and all its other colors) through the use of blue glazed enameled bricks for the blue which was thought to be made of the precious stone,lapis luzli, ...
October 16, 2016

Art History, college
Q:The Old Kingdom, or Old Dynasty, of Egypt is considered the golden age of Egypt. Using specific examples, explain why. A:The Old Kingdom, or Old Dynasty, of Egypt is considered the golden age of Egypt because of the monumental building efforts such as the funerary complex of...
October 16, 2016

Art History, college
Q:The Old Kingdom, or Old Dynasty, of Egypt is considered the golden age of Egypt. Using specific examples, explain why. A:The Old Kingdom, or Old Dynasty, of Egypt is considered the golden age of Egypt because of the monumental building efforts such as the funerary complex of...
October 16, 2016

Algebra
if tickets are sold for $50, then 600 tickets are expected to be sold. For each $1 reduction in price, an additional 20 tickets will be sold. Write an equation that gives revenue R from ticket sales when the ticket prices are reduced by "x" dollars.
October 10, 2016

History
All day long and in all places I am always fastening upon you, stirring you and persuading you and reproaching you. You will not easily find another like me. Use the passage to answer the question. 1. In the passage, what Greek philosopher describes his own method of seeking ...
October 10, 2016

History, college
What are some natural events mentioned in Robert Bartlett's book "The Natural and the Supernatural in the Middle Ages"?
October 10, 2016

Science
Yes
October 9, 2016

calculus
Sorry, supposed to be from 0 to 2pi
October 6, 2016

calculus
use Simpson's with n=10 to approx. f(x)= x sin x, 0¡Ü x ¡Ü2¦Ð round to 6 decimal places I know I set up the calculation correctly like this: (pi/15)(f(0)+4f(pi/5)+2f(2pi/5)+...+2f(8pi/5)+4f(9pi/5)+f(2pi) I keep getting a negative answer but...
October 6, 2016

math
Write a compound inequality that each graph could represent
October 2, 2016

Psychology
In Schachter and Singer's experiment, participants who received epinephrine injections reported euphoria in a happy situation and anger in an insulting situation. Why were the results difficult to interpret? a) Placebo injections produced the same results as epinephrine. ...
October 1, 2016

psychology
Goals are most effective at motivating increased efforts if the goals are a) challenging (somewhat better than you have done in the past). b) flexible (such as "do your best"). c) private. d) easy. a is my answer
October 1, 2016

History
1. That is correct as the traditional range for the Sioux people was from the Dakotas to Wyoming. 2. That is correct because the Aztecs lived in a swampy and marsh filled environment which means farming in terraces would be the best option for crops surviving floods. 3. That ...
September 29, 2016

Math
There are 11 kids in your math class. 3 of them are girls and 8 of them are boys. There are 6 bananas and 12 apples in the bowl.
September 28, 2016

college, history
Yes I have but he is so vague about what he considers things being natural in the Middle Ages that I decided to ask for help and the same thing with the supernatural I've got the gist, I just need some rock-hard examples to make my essay that much better for both what he ...
September 28, 2016

college, history
What does Robert Bartlett in the "The Natural and the Supernatural in the Middle Ages" say about things about being beyond nature and what examples does he give? Also,what does Robert Bartlett in the "The Natural and the Supernatural in the Middle Ages" say...
September 28, 2016

history,college
So in my shoes, Bob, would you rewrite what I have for my answer by including what you stated above?
September 26, 2016

history,college
What was the distinction between natural and supernatural events in the medieval world? (One of the questions that I have to answer in an essay regarding Robert Bartlett's book 'The Natural and the Supernatural in the Middle Ages) My answer: Natural events can be ...
September 26, 2016

History, college
Hi, I need help with making a stronger thesis statement that I'm going to use on my midterm assignment for Pre-Modern World History. Here's the thesis statement that I've come up with: The book 'The Natural and the Supernatural in the Middle Ages' portrays ...
September 25, 2016

people
Who is Jishha?
September 22, 2016

Algebra
Thanks, but I wanted someone to show me how to FIND the answer.
September 22, 2016

Algebra
1.Use the distributive property to simplify the expression. (-1)(4-c) Can someone show me how to work this out? I'm stuck. :C
September 22, 2016

chemistry
How many mL of 0.6 M H2SO4 solution are needed to react completely with 23.62 g of Fe2O3 in the following reaction?
September 20, 2016

maths
Three boys earned a total of 235.50.What was the averge amount earned per boy
September 20, 2016

Physics
A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.70 of her regular weight. 1).Calculate the magnitude of the acceleration of the elevator. Express your answer to two significant figures and include ...
September 19, 2016

Social Studies
Thanx connection students
September 15, 2016

Social Studies
a cd b c c c b b d a
September 15, 2016

World History
hey nikki im also in connexus maybe we could sometimes help each other if u have kik or skype thatd be cool
September 14, 2016

Math, ratio, part to part ratio etc...
There were 40 students per bus for the field trip
September 12, 2016

Math
Four more than twice Jason's age is the same as his age ten years from now. How old is Jason now?
September 7, 2016

Social Studies
i need help on this to
September 6, 2016

algebra
- 1/3 chance of choosing an O, as there are 6 letters in "school" and 2 of those are O's. 2/6 = 1/3
September 4, 2016

algebra
mary had 150 buttons more than gary at first. after mary used 190 buttons gary now has twice as many buttons as mary. find the number of buttons mary had at first.
August 29, 2016

algebra
mary had 150 buttons more than gary at first. after mary used 190 buttons gary now has twice as many buttons as mary. find the number of buttons mary had at first.
August 29, 2016

PE
100% THANKS :)
August 25, 2016

algebra
You also have two options for lodging. Write an equation FOR EACH OPTION that depicts the total cost of your stay, y, based on the number of days, x. Bilton Hotel: $100/night but you must pay an additional one-time fee of $40 for parking and other fees Triple Tree: $110/night ...
August 13, 2016

statistic
A survey found that​ women's heights are normally distributed with mean 62.5 in. and standard deviation 2.7 in. The survey also found that​ men's heights are normally distributed with a mean 67.9 in. and standard deviation 2.8 . Complete parts a through c ...
July 29, 2016

Physics
htt p://i .imgur. com/mXYFaDV .png this is the link, delete the spaces. Are any of these options correct?
July 18, 2016

Physics
Ok so this is just a small understanding problem, I do not want you to actually help me solve the problem, here it goes: A cylinder with mass 3kg slides on ice with its base surface at 5m/s and collides with an identical but stationary cylinder. The collision is elastic. After...
July 18, 2016

arithmetic sequence
find the 9th term of the arithmetic sequence with Asub1=10 and =1/2
July 6, 2016

arithmetic sequence
give the sequence of 5 term if the first term is 8 and the last term is 100
July 6, 2016

Chemistry
How much energy is released when 2.50g of NH3 rxs with excess N20 given the following 2NH3+3N2O -> 4N2_3H2O; DELTA(H)=-1010KJ. Please give work and setup :)
June 26, 2016

Chemistry
a 2.00 g sample of C6H402 is burned in a calorimeter whose heat capacity is 8kj/C. The delta T is +7.13 degrees C. What is the enthalpy change per mole?
June 26, 2016

math
Add all the numbers up but pay attention you are counting 6.30 twice. then you divide by the numbers of days you have.(5) Your answer should be 5.47
June 21, 2016

math
Arley’s Bakery makes fat-free cookies that cost $1.60 each. Arley expects 40% of the cookies to fall apart and be discarded. Arley wants a 35% markup on cost and produces 200 cookies. Assume that Arley can sell the broken cookies for $1.50 each. What should Arley price ...
June 20, 2016

Pre cal
If Joe invested $7000 at x% and $13,000 at 3% more, find x if the income from both investments is $1190 I'm thinking that the equation would r something like 1,190=(13,000)(.03) but please correct me if I'm wrong. Thank you for your assistance.
June 6, 2016

MATH
Answer=EGG
June 1, 2016

MATH
THOSE WERE THE INSTRUCTION(THIS IS THIRD GRADE MATH)
June 1, 2016

MATH
EACH LETTER IN EACH ADDITION PROBLEM STANDS FOR A NUMBER BETWEEN 0 AND 9.NO TWO LETTERS STAND FOR THE SAME NUMBER IN EACH QUESTION. FIND THE VALUE FOR EACH LETTER.FOR EACH PROBLEM, USE THE NUMBERS IN THE BOX NEXT TO THE PROBLEM. T E N (5,6,1,2,7) + O N _________
June 1, 2016

Physics
H=5.09684
May 24, 2016

Algebra
For f(x) = 0.01(2)x, find the average rate of change from x = 2 to x = 10.
May 19, 2016

math
sally's cell phone company charges a flat rate of $15.00 per month and $0.12 per minute. eduardo's cell phone company charges a flat rate of $18.00 per month and $0.09 per minute. how many minutes would you have to use for the price to be the same for both plans?
May 18, 2016

Chemistry
How many grams of solute are required to make a 976 mL solution of sodium hydroxide with a concentration of 0.0783 M?
May 16, 2016

Linear Algebra - urgent!
A is a diagonalizable matrix. It has the characteristic polynomial det(lambda*I-A)=(lambda-c)^n. Prove that A=cI.
May 10, 2016

math
florence bought two bags of flour, A and B. the two bags contained different amounts of flour. the total mass was 108 kg. Gary poured 1/4 of the flour from bag A to bag B. After that, he poured 2/5 flour from bag B to bag A. he found that the both bags had the same mass now. ...
May 10, 2016

math
Distribute the 3, combine like terms, then isolate the variable. -6t + 3t - 6 + 5t = 8 2t - 6 = 8 2t = 14 t = 7
May 9, 2016

math
Sample mean and population mean are the same for normal distributions.
May 9, 2016

math
Yes.
May 9, 2016

Math
Any polygon's total angle can be found by the formula (v - 2) * 180, where v is the number of vertices. In your problem, we have a 7-sided polygon, so v = 7. The total angle is 900. The 6 interior angles of 125 sums to a total of 750, so the seventh, unknown angle is 900...
May 9, 2016

Linear Algebra
A is a diagonalizable matrix. It has the characteristic polynomial det(lambda*I-A)=(lambda-c)^n. Prove that A=cI.
May 8, 2016

Chemistry
What is the maximum mass(g) of KCL that can be added to 1.00L of a 0.0100 M lead(ii) chloride solution without causing any precipitation of PbCl2? Assume the additional KCl does not affect the volume of the solution. For, PbCl2, Ksp=1.6x10^-5 Personally I'm at a loss here...
May 5, 2016

Physics, Math
A helicopter is in a level flight with an altitude of 4000 feet and a speed of 130 feet/sec. The helicopter drop a bomb with 0 speed relative to the helicopter. How far does the bomb travel horizontally from the launch point to impact with the ground?
May 5, 2016

Calculus - urgent
A lamina. defined by y>=0 with edges y=0, y=3/2(1-x^2) and x=-y+2y^2, for which the density is given by p(x,y)=y. a) define domain as union of type 1 and type 2 region. b) Calculate mass of lamina.
May 2, 2016

Physics
A 100 kg block is hanging from a frictionless pulley with another block of unknown mass on the other side of the pulley. It is released from a height of 1 meter above the ground. It then takes 0.9 seconds to reach the ground. What is the weight of the other mass? Thanks for ...
May 1, 2016

Physics
A 100 kg block is hanging from a frictionless pulley with another block of unknown mass on the other side of the pulley. It is released from a height of 1 meter above the ground. It then takes 0.9 seconds to reach the ground. What is the weight of the other mass?
May 1, 2016

Calculus
The videos did help but i still have trouble setting up the integrals. Since this is part of double integrals section in my course... i'm trying to do it in the form of double integrals. Is this correct? Outer integral is from -pi/2 to pi/2 Inner is [r dr d(theta)] from 3*...
May 1, 2016

Calculus
A cardioid r=1+cos(theta) A circle r=3*cos(theta) a) Define the domain of the region enclosed inside both the cardioid and the circle. b) Use polar coordinates to calculate the area. (We can use symmetry about x-axis)
May 1, 2016

Physics
Three objects are connceted by a massless wires over a frictionless pulley. The right side of the pulley wire is connected to a 15kg block and right below that is a 10kg block on the bottom of the wire. The tension in the wire connecting the 10kg and 15kg objects is measured ...
April 30, 2016

Physics
A 100 kg block is hanging from a frictionless pulley with another block of unknown mass on the other side of the pulley. It is released from a height of 1 meter above the ground. It then takes 0.9 seconds to reach the ground. What is the weight of the other mass?
April 30, 2016

Physics
Thanks a bunch Bob Alex
April 30, 2016

Physics
A 50 Kg box rests on a horizontal surface. The coefficient of Static friction between the box and surface is 0.30. The coeffient of Kinetic friction is 0.20. What is the frictional force on the box if a 140 N horizontal push is applied to it. If a 175 N horizontal push is ...
April 30, 2016

Math
The rectangular backboard of a basketball court needs to be assembled. Its area is given as 18,900 cm2 and the width as 1.8 m. What is the backboard’s length in metres? m
April 30, 2016

Chemistry
A gas occupies a volume of 4.64 x 102 mL at 519.57 mm Hg pressure. What will be its volume, at constant temperature, if the pressure is changed to 764.71 mm Hg?
April 27, 2016

Math
how to find out length of a rectangle area given 18900cm'2 width 1.8 what is length in metres
April 27, 2016

Math
Its area is given as 18,900 cm2 and the width as 1.8 m. What is the backboard’s length in metres? m
April 27, 2016

Math
Our parent function for log is log (x), so how does your function differ? 1) The leading negative sign. This reflects rhe function across the x-axis. 2) The (2 - x) inside the log function. Note that this is actually two transformations because 2 - x is equivalent to -x + 2. A...
April 27, 2016

Emergency Easy QUESTION
It depends on the colleges you're looking at and the high school you are attending. Colleges like to see rigor on your transcript so, if the college is very prestigious and your HS offered a lot of rigorous classes-- AP, gifted, honors, dual enrollment, etc.-- that might ...
April 27, 2016

English Grammar
Yes, that seems right to me. "I was referred... job," is a simple subject-verb-noun construction, "by... supervisor" is an adjective prep phrase describing "job opening," "John Smith" is the essential appositive, and the rest is ...
April 27, 2016

science
What are the answer choices?
April 27, 2016

L.A.
Yes I meant L.A. I have no idea why I put Math. But thank you so much you helped me a lot!
April 27, 2016

Math
When Scrooge tells Marley that Marley was always “a good man of business,” in Act 1, Scene 3 of A Christmas Carol: Scrooge and Marley, Marley responds, “BUSINESS!!! Mankind was my business. The common welfare was my business; charity, mercy, forbearance, ...
April 27, 2016

Math
In order, these equations are: 1) .25x + 40 2) .40x + 25 Where the charge per minute is the slope, the flat rate the y-intercept. We want to know for what number of minutes these two plans cost the same, so set equations (1) and (2) equal to each other and solve for x.
April 26, 2016

algebra
Yes. A polynomial can have, at most, a number of zeroes equal to it's degree. A third degree polynomial can therefore have three zeroes, however, Ray is arguing that the polynomial has four INTERCEPTS. While the terms "zeroes" and "intercepts" are often...
April 26, 2016

Linear Algebra
Let T : Rn-->Rn be a linear transformation, whose standard matrix is invertible. Show that if B = {v1, . . . , vn} is a basis for Rn, then {T(v1), . . . ,T(vn)} is also a basis for Rn.
April 26, 2016

English
Because that's an arrogant, Anglo-centric point of view?
April 25, 2016

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