Thursday
May 5, 2016

# Posts by ash

Total # Posts: 509

Probability
Assume Z has a standard normal distribution. Use Appendix Table III to determine the value for z that solves each of the following: (Round your answer to 2 decimal places.) P(Z<z)=.9 P(Z<z)=.5
March 21, 2014

Probability
Suppose X has an exponential distribution with . Determine the following. Round the answers to 3 decimal places. a) P(x<=0) b) P(X>=2) c) P(X<=1) d) P(1<x<2) e) Find the value of x such that P(X<x)=.05
March 21, 2014

I believe D, because the mean of X~U(a,b) is E(x) =(a+b)/2
March 21, 2014

math
Two pairs of shoes and four pairs of socks cost \$125, and three pairs of shoes and five pairs of socks cost \$182. Find the cost of a pair of socks. \$
March 13, 2014

math
Whats the Question?
February 25, 2014

biology
how can i make my carier in torism
February 13, 2014

english
Consider the protagonist in the novel that you read this semester. In a response of no fewer than three paragraphs, explain how this character changes over the course of the novel. Include examples of these changes in your response. its over sence and senseability
December 16, 2013

math
1. Jane has a checkbook balance of \$68.00. She then writes two checks, one for \$5.00 and one for \$62.50. She also deposits \$75.00. She then uses her calculator to determine her new balance. Which of the following is the correct series of keys she should press? A. ON/C 6 8 + 7 ...
October 30, 2013

math
1. Eliza Savage received a statement from her bank showing a checking account balance of \$324.18 as of January 18. Her own checkbook shows a balance of \$487.38 as of January 29. The bank returned all of the cancelled checks but three. The amounts of these three checks are \$15....
October 16, 2013

math
My 2nd answer for 6th is C, is that correct?
October 15, 2013

math
1. The product of 7/16, 4/3, and 1/2 is A. 7/12. (B). 7/24. C. 21/32. D. 2 13/48. 2. The total of 36, 78, 198, 475, and 620 is (A). 1,407. B. 2,109. C. 1,731. D. 1,187. 3. The quotient of 794.1 divided by 7.61, expressed to two decimal places, is A. 95.83. (B). 104.35. C. 786....
October 15, 2013

Fluid Mechanics
Consider a flow whose velocity field is given by u = y, v = −x The streamlines are circles centered at the origin, and this flow is an example of a solid-body rotation. As shown in the figure, a small square fluid element is placed at the point (x,y)=(0,1) at t=0: it ...
October 11, 2013

Chemistry
Can calcium hydroxide solution be used to distinguish Co(NO3)2 and Fe(NO3)3 solutions using only the titration technique? Why or why not?
October 5, 2013

Chemistry
Will the 90-100 mL of distilled water added to the acid solution (10.00 mL) significantly change the moles of H3O+ in the 1.00 M HCl solution? Why or why not?
October 5, 2013

physics
A meteoroid is speeding through the atmosphere, traveling east at 19.5 km/s while descending at 12.7 km/s. What is its speed, in km/s?
October 2, 2013

Your velocity changes from 50 m/s to the left to 10 m/a to the right in 15s, what is your average acceleration?
September 22, 2013

english
what does "There are a lot of people in the projects who say they're not going to do drugs, that they're not going to drop out, that they won't be on the streets. But they're doing it now. Never say never" mean?
September 19, 2013

Elements of Structures MIT 2.02
July 27, 2013

Physics
July 27, 2013

Physics
July 27, 2013

math
simplify 27x^2y^6 / 3x^5y^2z^0
May 30, 2013

Math
A rectangular solid has a volume of 40 cubic centimeters. If the dimensions are all reduced to 1/2 their original size, what will be the new volume of the rectangular solid?
April 23, 2013

math
THANK YOUUU!! c:
April 10, 2013

math
so its 132.665 cm squared??
April 10, 2013

math
a square has an area of 169 square centimeters. find the area of the largest circle that could be drawn inside the square. round your answer to the nearest square centimeter.
April 10, 2013

Physics 203
A 5m long diving board of negligible mass is supported by two pillars. One pillar is at the end of left of the diving board, the other is 1.50m away. Find the forces exerted by the pillars when a 90kg diver stands at the far end of the board.
April 9, 2013

physics 203
The figure shows a 1.50kg block at rest on a ramp of height, h. When the block is released, it reaches the bottom of the ramp and moves across a surface that is frictionless except for one section of width 10cm that has a coefficient of kinetic friction uk=0.64. Find h such ...
April 9, 2013

physics 203
Water (p=1000kg/m^3) enters a pipe on the ground with an inside diameter of 2cm at a pressure of 4x10^5 Pa. Then a 1-cm diameter pipe leads the water to a height of 5m above the ground. The flow speed at the inlet is v1=1.5m/s. A) Find the flow speed at the outlet. B) Find the...
April 9, 2013

Physics 203
A block with mass of 5.0kg is suspended from an ideal spring having negligible mass and stretches the spring 0.20m to its equilibrium position. A) What is the force constant of the spring? B) The spring is then stretched 0.80m from its equilibrium position and then released ...
April 9, 2013

AP CHEMISTRY
30.0 mL of 0.10 M Ca(NO3)2 and 15.0 mL of 0.20 M Na3PO4 solutions are mixed. After the reaction is complete, which of these ions has the lowest concentration in the final solution? A) Na+ B) NO3- C) Ca+2 D) PO4-3 Answer is C.. How do you solve it though?!
April 3, 2013

AP CHEMISTRY
The molar mass of an unknows organic liquid (M~100) is determined by placing 5 mL of the liquid in a weighed 125-mL conical flask fitted with a piece of Al foil with a pin hole in it. The flask is heated in a boiling water bath until the liquid evaporates to expel the air and ...
March 29, 2013

AP CHEMISTRY
A dilute solution of which acid is most likely to produce a reduction product other than H2 when it reacts with a metal? A)HF B)HCL C)HNO3 D)H2SO4 Answer is C. I know it has something to do with it producing oxygen, but I really don't understand where that comes from. ...
March 29, 2013

AP CHEMISTRY
Determine the volume of 0.125 M NaOH required to titrate to the equivalence point 25.0 mL of a 0.175 M solution of a monoprotic weak acid that is 20% ionized. Answer is 35.0 mL. How do you find it?! It's been a really long time since we talked about titrations. Please help (:
March 29, 2013

statistics
Margin of Error=z*(s/sq.root n) 25=2.32635(80/sq.root n) n= 55.4 Round UP= 56
March 29, 2013

AP CHEMISTRY
OH, thank you soo much. I forgot about the solid thing!
March 29, 2013

AP CHEMISTRY
C(s) + H2O(g) ⇌ CO(g) + H2 ΔH>0 For the system above at equilibrium, which changes will increase the amount of H2(g)? I. Adding C(s) II. Increasing the volume of the container III. Increasing the temperature The answer is II and III. I understand everything ...
March 29, 2013

arithmetic
the sum of two distinct numbers is 20,and their G.M is 6. find the numbers
March 6, 2013

Math
Hi. please help me solve the ffg. differential equation: D^2y=3sinx-4y given y=0 and dy/dx=1 at x=pie/2 Need full solution. Tx
February 27, 2013

Math
February 27, 2013

physics 203
a projectile is thrown with initial speed v0=25.0m/2 at an initial angle with the horizontal ANGLE=45 degrees. a. find the time when the projectile is at the maximum height. b. find the position(x,y) at the maximum height. c. at time T, find the components of the acceleration ...
February 22, 2013

chemistry
Suppose you have a solution containing both an iron ii salt and an iron iii salt. how would you proceed to identify both Fe 2+ and Fe 3+ in this solution?
February 12, 2013

probability
a. E(x)=np=(10)(0.35)=3.5 b. p(x=4)=10C4(0.35)^4(1-0.35)^6 =0.2376 c.
February 8, 2013

green lawns
On reaction with BaCl2 both will form a white ppt. But in the case of H2SO3 the ppt would be soluble in HCl but not in the case of H2SO4
February 3, 2013

English
Thanks :D You're a life saver
January 30, 2013

English
1. Which of the key reading skills for reading informational articles involves looking for key words and phrases in a text before reading the text? A. identifying main idea and supporting details B. previewing C. skimming and scanning D. understanding text structures
January 30, 2013

English
Okay, thanks
January 9, 2013

English
In other places on the Internet, people have used (Walt Disney Company, Mulan) to cite. Is this acceptable too?
January 9, 2013

English
How do you cite this quote in MLA format? “The flower that blooms in adversity is the rarest and most beautiful of all.” I'm having issues because the quote is said by Mulan in Walt Disney's "Mulan". Do I say Mulan says it or the Walt Disney Company...
January 9, 2013

Biology
In a lab on lung capacity where lung volumes (Tidal Volume, Expiratory Reserve Volume, Inspiratory Capacity, Inspiratory Reserve Volume, and Vital Capacity) are measured... Why can't you measure the Inspiratory Reserve Volume (IRV) directly? (In the procedure it says to do...
January 2, 2013

Biology
In a lab on lung capacity where lung volumes (Tidal Volume, Expiratory Reserve Volume, Inspiratory Capacity, Inspiratory Reserve Volume, and Vital Capacity) are measured... Why can't you measure the Inspiratory Reserve Volume (IRV) directly? (In the procedure it says to do...
December 31, 2012

computers
coolmathgames(dot)com games(dot)com miniclipgames(dot)com (this one is my fav)
December 26, 2012

english
Odysseus was BRAVER THAN the rest of the crew [I'm assuming this is what you meant] so he led us TO FOOL Cyclops. He gave some wine to Cyclops to get him drunk. Then Odysseus, a couple of the crew, and *I* stabbed Cyclops in the eye. Also [perhaps THEN or synonyms would be...
December 9, 2012

Grammar
Can you put (grin) in a sentence where it acts as direct object?
November 20, 2012

Physics
Mary weighs 459 N and she walks down a ﬂight of stairs to a level 4.7 m below her starting point. What is the change in Mary’s potential energy?
November 12, 2012

Chemistry
what do you use for the V in PV=nRT?
November 8, 2012

Chemistry
15.8 grams of potassium chlorate is decompossed and the gas is colected over water at 29 degrees celcius when water vapor pressure is 30 mmHg. Assuming 100% yeild of products, what is the total pressure in the vessel after the reaction in complete?
November 8, 2012

Chemistry
(2*-393.5+4*-242)-(2*-293+0) Delta H+ -1169 kJ/mol
November 8, 2012

Math-Quartic Equation
Reduce this equation using the quadratic formula, factoring, or other algebraic method to determine the other zeros of the function. F(x)= 4x^4 - x^3 - 11x^2 -2x +6
October 28, 2012

world history
Which of the following provides the most significant contrast to the feelings of the detained Chinese immigrants at the Angel Island Immigration Center in California? A.The feelings of the Chinese immigrants at Ellis Island. B.The feelings of the Europeans immigrants at Ellis ...
October 26, 2012

algebra
A train leaves the station at 9:00 pm traveling east at 36 miles per hour. A second train leaves the station at 10:00 pm traveling west at 42 miles per hour. At what time will both trains have traveled the same distance? I need help solving it :)
October 4, 2012

math
A train leaves the station at 9:00 pm traveling east at 36 miles per hour. A second train leaves the station at 10:00 pm traveling west at 42 miles per hour. At what time will both trains have traveled the same distance? I need help solving it :)
October 4, 2012

science
Sediment can be directly turned into which of these types of rock? Select all that apply. A. igneous B. sedimentary C. metamorphic i think its all of them correct?
October 3, 2012

science
What is the relationship between a mineral and a rock? A.They are the exact same thing. B.A mineral is a building block of rocks. C.Minerals are only silicates while rocks are nonsilicates. D.A rock is always man-made while a mineral is naturally occurring. I think the answer...
October 3, 2012

math
An art collector buys 6 pieces a year for y years before donating 27 pieces to a museum. Which algebraic expression represents the number of pieces the collector still has in her possession? would the answer be 6y - 27?
October 2, 2012

math
A miniature-doll collector has a total of 254 unique dolls. The collector can afford to add 3 unique dolls a week to the collection. Which algebraic expression represents the number of unique pieces the collector has at the end of w weeks? would the answer be 254+3w?
October 2, 2012

math
Felipe has saved \$625. He is starting a part-time job that pays him \$150 a week, and he plans to save all of the money he earns. Which algebraic expression represents Felipe's total savings after x weeks? A.625x + 125 B.775x C.150x + 625 D.125x - 650 is it c?
October 2, 2012

math
okay. I think the answer is b?
October 2, 2012

math
A cell phone company charges each customer a base rate of \$15.00 per month for its services. The company also charges each customer \$0.02 per minute used. Which algebraic expression represents each customer's monthly charge for m minutes? A.15 (0.02m) B.15 + 0.02m C.15m...
October 2, 2012

math
I believe it is c?
October 2, 2012

math
Felipe has saved \$625. He is starting a part-time job that pays him \$150 a week, and he plans to save all of the money he earns. Which algebraic expression represents Felipe's total savings after x weeks? A.625x + 125 B.775x C.150x + 625 D.125x - 650
October 2, 2012

math
Before she went to the grocery store, Jana had 4 tomatoes in her refrigerator. For the next 3 weeks she buys n number of tomatoes each week. Which algebraic expression represents how many tomatoes she has at the end of three weeks? A. 4 − 3n B. 4 + 3n C. 3n − 4 D.
October 2, 2012

Math
According to math teachers what did the acorn say when it grew up
September 24, 2012

physics
from equation t equal to root x+3 find velocity and acceleration t equal to 1second
September 23, 2012

physics
from equation t equal to root x+3 find velocity and acceleration t equal to 1second
September 23, 2012

physics
a balloon is moving upwards with speed of 5m per second .when it is at height 98 m.a packet dropped from it .what velocity of packet when it strikes the ground
September 23, 2012

chemistry
check the mole quickly
September 23, 2012

sugarhill
i need help with this problem 6/13 devided by 4/39
September 19, 2012

I meant 18
September 19, 2012

6x10=60 78-60=18 so the answer is 19
September 19, 2012

Social Studies
women got to vote
September 18, 2012

ap stats
all students in a pe class completed a basketball free throw shooting event and the highest number of shots made was 32. the next day a student who had transferred into the school completed the event, making 35 shots. indicate whether adding the new student's score to the ...
August 29, 2012

ap stats
all students in a pe class completed a basketball free throw shooting event and the highest number of shots made was 32. the next day a student who had transferred into the school completed the event, making 35 shots. indicate whether adding the new student's score to the ...
August 28, 2012

algebra college
find the remaining zeros of f. degree 4 zeros i, -18+i enter the remaining zeros of f please help me out!
August 27, 2012

college algebra
form a polynomial f(x) with real coefficients having the given degree and zeros degree 4 zeros 5+3i;3 multiplicity 2 enter the polynomial f(x)=a?()
August 27, 2012

algebra
so i am right? x and y? x=-2.344 y=10.186 it was continuous, but they wanted it rounded to three decimal places
August 26, 2012

algebra
i changed it too f(1.9)= 10.186 f(1.5)= -2.344
August 26, 2012

algebra
use the intermediate value theorem to show the polynominal function has a zero in the given interval f(x)=x^5-x^4+3x^3-2x^2-11x+6; [1.5,1.9] x= -2.33 y=10.19 after i plugged in the 1.5 and 1.9 i just want to know if my x and y are correct
August 26, 2012

trig
given cot-A square root of 5, find cot-B at the 4th quadrant.
June 23, 2012

calculus
An airplane's velocity with respect to the air is 580 miles per hour, and its bearing is 332 degrees. The wind, at the altitude of the plane, is from the SW and has a velocity of 60 mph. What is the true direction of the plane, and what is the speed with respect to the ...
May 24, 2012

geology
during glacier ice ages, sea level rises or falls?
May 23, 2012

calculus
A plane flies 810 miles from A to B with a bearing of 75 degrees. Then it flies 648 miles from B to C with a bearing of 32 degrees. Find the straightline distance from and bearing from C to A.
May 15, 2012

calculus
A pole at a right angle to the horizontal is located on a slope that makes an angle of 12 degrees with the horizontal. The pole's shadow is 16 meters long and points up the slope. The angle of elevation from the tip of the shadow to the sun is 20 degrees. What is the ...
May 9, 2012

calculus
Verify the identity: (tanx+1)/(secx+cscx) = sinx
May 2, 2012

Chemistry
Never mind I got it, just divide by the other ml amount :)
March 18, 2012

Chemistry
Sorry the question is What is the molarity of this AgNO3(aq)?
March 18, 2012

Chemistry
A 25.00 mL sample of a clear saturated solution of PbI2 requires 14.3 mL of a certain AgNO3(aq) for its titration. I^-(from satd PbI2)+ Ag^+(from AgNO3)= AgI(s) So, this is where I am. using the Ksp equation for PbI2: 7.1*10^-9=4x^3 solving for x gives me 0.00121 Giving the ...
March 18, 2012

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