Sunday
February 14, 2016

Posts by TAnya

Total # Posts: 303

statistics (math)
of college students 45% are women 8% have a GED. suppose a student is selected at random. Given that the selected employees is a woman. what is the probability that she has a GED
November 28, 2015

Statistic math
student is graduating from their university and has applied to jobs at company A and B. The student thinks they have a 40 % chance of a receiving an offer from company A and a 50 % chance of receiving an offer from company B. If the student receives an offer from company A, ...
November 28, 2015

statistics
In a recent​ season, the population standard deviation of the yards per carry for all running backs was 1.241.24. The yards per carry of 25 randomly selected running backs are shown below. Assume the yards per carry are normally distributed. 1.81.8 4.54.5 7.47.4 5.85.8 5...
November 22, 2015

Algebra 2
The lenths of the side of a triangle are x+4 units, x units, and x+1 units. Express the perimeter of the triangle as a polynomial in standard form.
November 12, 2015

chemistry
name three characteristics of nonmetals
November 7, 2015

math
charlene takes the bus to work in the morning, then walks home for lunch, walks back to work, and finally walks home in the evening. The distance one way is 600 meters. How far does she walk each day between home and work? 1.2 kilometers 1.8 kilometers 180 meters 12,000 ...
November 7, 2015

math
the distance between new york city and boston is 189.9 miles as the crow flies. how far is it in kilometers? 117.7 kilometers 305.7 kilometers 417.8 kilometers 1,899 kilometers
November 7, 2015

math
how do you convert miles to feet in the u.s. customary sysyem? multiply by 12 divide by 12 multiply by 5,280 divide by 5,280
November 7, 2015

Math
Shana has written a 3 digit number in which the digits are all different. The sum of the digit of her number is 14. And the product of her number is 54. The digits are in order from greatest to least. What are her numbers?
October 8, 2015

Math
Shana has written a 3 digit number in which the digits are all different. The sum of the digit of her number is 14. And the product of her number is 54. The digits are in order from greatest to least. What are her numbers?
October 8, 2015

afrikaans (AFK503/101)
Thank you for replying my question.
August 12, 2015

afrikaans (AFK503/101)
Hi there, can anyone pls help me with AFK1503/101 - 2015. I am seeking an English version of this assignment pls, is there an English one available? if there is pls provide me with a website address to get access. Thank you. Tanya
August 12, 2015

math problems
shelia works at Bills Bargin. She earns \$350 per week plus 10% of all sales. What is her commission for the week, if she sold \$2490 worth of goods?
August 2, 2015

chemistry
The edge length of face centered unit cubic cell is 508pm.if the radius of the cation is 110 pm,the radius of anion is
July 7, 2015

history
the reign of terror was a necessary evil discuss
June 22, 2015

chemistry
CHEMICAL KINETICS The rate of reaction 2N₂O5->4NO₂+O₂ can be written in three ways -d[N₂O5]/dt= k[N₂O5] d[NO₂]/dt= k'[N₂O5] d[O₂]/dt =k"[N₂O5] The relationship between k and k' and between k and k" are ?
May 28, 2015

MATH
0.4771=x/2.303*8.14[50/323*373 calc.-x?
May 28, 2015

maths
0.4771=x/2.303*8.14[50/323*373 calc.-x?
May 28, 2015

chemistry
In a zero order reaction ,20% of the reaction complete in 10s .How much time it will take to complete 50% of the reaction?
May 27, 2015

chemistry
A|A+3(0.1)||B+2(0.01m)|B GIVEN E°A|A+3=0.75v E°B|B+2=0.45v
May 27, 2015

Chemistry
Hydrazene can be used in fuel cell N2H4(aq)+o2(g)->N2(g)+2H2O(l) IfΔG°for this reaction is -600kj what will be the E°for the cell?
May 27, 2015

a) fe+fo 114 cm + 17 cm = 131 cm b) M=fo/fe 114 cm / 17 cm = 6.71 cm c) Need help with this part. Thank you!
May 2, 2015

An astronomical refracting telescope is made from two lenses. the objective lens has a focal length of 114 cm, and the eyepiece lens has a focal length of 17 cm. a) What is the total length of the telescope? b) What is the angular magnification of the telescope? c) What is the...
May 2, 2015

A thin converging lens is found to form an image of a distant building 24 cm from the lens. If an insect is now placed 16 cm from this lens, how far FROM THE INSECT will its image be formed? A) 64 cm B) 72 cm C) 32 cm D) 96 cm E) 48 cm
May 2, 2015

PHYSICS
An object of mass M is divided into two parts ,which are placed at distance d.if gravitational force of attraction is maximum between parts,then find the ratio of mass of both parts
April 3, 2015

Chemistry
the rate of diffusion of a gas having molecular weight just double of hydrogen gas is 30 ml/s.the rate of diffusion of hydrogen gas will be
April 2, 2015

CHEMISTRY
Two gases A and B having the same volume diffuse through a porous in 20 and 10 seconds respectively .The molecular mass of A is 49u.Molecular mass of B will be
March 23, 2015

Chemistry
0.24g of a volatile substance,upon vaporisation,gives 45ml vapour at NTP what will be the vapour density of the substance?
March 22, 2015

CHEMISTRY
The average kinetic energy of an ideal gas,per molecule in S.I units at 25°C will be
March 22, 2015

CHEMISTRY
At 25°C and 730 mm pressure,380 ml of dry oxygen was collected.If the temperature is constant ,what volume will the oxygen occupy at 760 mm pressure ? ANSWER- 365ml
March 22, 2015

CHEMISTRY
The pressure exerted by 6.0g of methane gas in a 0.03m3 vessel at 129degreeC is.
March 22, 2015

CHEMISTRY
A gaseous mixture was prepared by taking equal mole of CO and N2 .if the total pressure of the mixture was found 1 atmosphere ,the partial pressure of nitrogen (N2) in the mixture is.
March 22, 2015

Pre-calculus
i wanna answer this inequality of this graph f(x)= x -3 if x >= 3
February 13, 2015

math
The scale of the map is missing.The actual distance from Liberty to West Quall is 72 miles,and it is 6 inches on the map. (A)What is the scale of the map? (B)Foston is between Liberty and West Quall and is 4 inches from Liberty on the map.How far is Foston from West Quall?
January 15, 2015

AP Physics
A block of mass 80.4 kg is sliding on a ramp. The angle of elevation of the ramp is 45 degrees. The coefficient of friction is 0.43. Use g=9.8. Give your answer to at least 2 decimal places. Assume that down the ramp is the positive direction.
November 25, 2014

Physics Help Urgent
A ball is thrown straight up into the air with a velocity of 12 m/s. Draw a motion diagram for the ball and then give as much quantities information as you can about the motion. I know you guys can draw anything on this platform. But can you lead me to answer by giving ...
September 14, 2014

Organic-Chem Help
You wish to purify by distillation a material that has a boiling point of 205 C and reacts with air but this material will decompose if heated above 150 C. How would you set up the system to distill this material? Show steps Pleaseeeee!!!!!!!!!! Thank you!!!!
September 12, 2014

Life sciences
tp be protected frpm any damged environmental influences
July 31, 2014

American national government
In brown v board of education Yvette supreme court overturned purest v Ferguson because it concluded that
July 3, 2014

computers
Th e No Interest Credit Company provides zero-interest loans to customers. Design an application that gets customer account data, including an account number, customer name, and balance due. Output the account number and name, then output the customer’s projected balance ...
June 8, 2014

calculus help
I need someone to show me steps. I used wolframalpha and got 40 but dont know how to solve this Thanks!!!
May 8, 2014

calculus help
Evaluate!!!! integral -10 to 10 ((2e^x)/(sinhx+coshx))dx Thanks!
May 8, 2014

When i put this answer in it is marked wrong. Are u sure this is the right answer for this question? Thanks!
May 1, 2014

Breathing is cyclic and a full respiratory cycle from the beginning of inhalation to the end of exhalation takes about 3 s. The maximum rate of air flow into the lungs is about 0.3 L/s. This explains, in part, why the function f(t) = (3/10)sin(2πt/3) has often been used ...
May 1, 2014

CALCULUS
A plane, flying horizontally at an altitude of 1 km and a speed of 500 km/hr, passes directly over a radar station. find the rate in km/hr at which the distance from the plane to the station is changing when it is 2 km away from the radar station. Hint: this is not a max/min ...
April 24, 2014

Calculus
x = -1 to x = 2
April 23, 2014

Calculus
a) Estimate the area under the graph of f(x)=7+4x^2 from x=-1 to x=2 using three rectangles and right endpoints. R3= ???? Then improve your estimate by using six rectangles. R6= ????? Sketch the curve and the approximating rectangles for R3. Sketch the curve and the ...
April 23, 2014

CHEMISTRY HELP !!!!
NH4CL , ZNCL2 , KAL(SO4)2 FIND THE FOLLOWING NET IONIC EQUATION FOR HYDROLYSIS EXPRESSION FOR EQUILIBRIUM CONSTANT (KA OR KB) VALUE THANK YOU SO MUCH!!!
April 10, 2014

Find the equation in slope intercept form of the tangent line and the normal line to the curve x^2+4xy+y^2=13 at the point.(2,1). show steps please!!! thank you!
April 8, 2014

I've got dy/dx= x^2/y^2 but couldn't find second derivative. thanks!
April 8, 2014

If x^3 - y^3 =3 , use only implicit diff. to find d^2y/dx^2 . Express your answer in terms of x and y only and write is as a proper fraction that is completely simplified as much as possible.
April 8, 2014

Thank you so much!!!
April 4, 2014

Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answers to three decimal places.) ln(1 + x) ≈ x Y1= I ln(1+x)-x I Y2= 0.1 ...
April 4, 2014

Find the absolute maximum and absolute minimum values of f on the given interval. f(t) = (t square root of (64 − t^2)) ,[−1,8]
April 1, 2014

math
Sorry. I think I was reading too fast and missed that. Thank you.
March 31, 2014

math
I need to convert this correct. I think that's my biggest issue. Since the diameter is in inches and the distance is in miles, wouldn't I have to convert the miles into inches?
March 31, 2014

math
Dana rode her bicycle 600 miles one summer before she had to replace the tire on her front wheel. The diameter of the front wheel is 24 inches. What is the best estimate of the number of revolutions made by the tire before it had to be replaced?
March 31, 2014

In a murder investigation, the temperature of the corpse was 32.5 C at 1:30pm and 30.3 C an hour later. Normal body temperature is 37.0 C and the temperature of the surrounding was 20.0 C. When did the murder take place? PLEASE SHOW STEP BY STEP
March 27, 2014

math
A water heater has a diameter of 18 inches. It sits in a drain pan that has a diameter of 22 inches and a height of 2 inches, as modeled in the diagram below. Water that leaks out of the water heater sits in the drain pan. Which of the following is closest to the maximum ...
March 19, 2014

Calculus Help and Check
Find dy/dx by implicit differentiation. x^5(x + y) = y^2(9x − y) this is what i've got so far but I dont think it is the right answer. y'= 9y^2-6x^5-5x^3y/x^5+9y^2-18xy
March 14, 2014

Science
Intrinsic control of heartbeat rate involves what mechanism(s)? a) The AV node initiates heartbeat although the SA node can generate a slower beat rate. b) The atrioventricular bundle initiates signals that travel to the Purkinje fibers. c) The SA node initiates heartbeat ...
February 4, 2014

Physics
Two spheres with masses of 5.00 g and 10. kg respectively are .500 m apart. calculate the force of attraction between them.
January 22, 2014

Medical Billing and Coding
Had to develop a paragraph using clear, varied sentences containing concrete words and transitions or connectives to create a logical flow. Need assistance in the following paragraph that describes on particular experience I had that inspired you or guided you to chose that ...
December 10, 2013

Math
(2-4i)-(-4+i)=
November 10, 2013

finance
can someone help me with this problem for this problem you will use 0.02/365 for your interest. You deposit \$1000 at 2% for 20 years, compounded daily.
September 17, 2013

finance
You deposit \$1000 at 2% for 20 years, compounded annually. What's the future value?
September 16, 2013

finance
You deposit \$1000 at 2% for 20 years, compounded annually. What's the future value?
September 16, 2013

math
i am a 2 digit decimal , the sum of my digit is 12. if you divide me by a certain number the quotient is 37. who am i?
August 13, 2013

pre cal
Solve G(x) for the given domain. G(x) = 3x 2 - 2x - 1 G(6) =
June 19, 2013

Physics
Which of the following is the correct relationship between the electric field strength and the potential difference?
May 31, 2013

Algebra
Solve for x. Round to the nearest hundredth. ln(x) = -1.8 x =
May 3, 2013

math
Find the general solution of cos2x + 3 sin x =2
May 3, 2013

math
show that 1-sin x/cosx + cosx/1-sin x = 2 sec x
May 3, 2013

,math
show that sec theta(cosec theta) - cot theta = tan theta
May 3, 2013

Algebra
Write the logarithm in expanded form. log2(y^5)
May 3, 2013

Algebra
Solve for x. Round to the nearest hundredth. ln x = − 4/9 x =
May 3, 2013

Algebra
Evaluate the following function at the indicated values. H(x) = 2x (a) H(-3) = (b) H(0) = (c) H(5) =
May 2, 2013

Algebra
Given f(x)=x^2 + x + 4 and h(x)= 3x +2, evaluate the composite function. f [h(x)]
May 1, 2013

Algebra
Given h(x)= 2x + 2 and f(x)=1/2 x + 4, evaluate the composite function. h[f(x)]
May 1, 2013

Algebra
Given f(x) = 2x − 1 and g(x) = 4x − 4, evaluate the composite function. g[f(x)]
May 1, 2013

Algebra
Given f(x)=2x^2 + 9x − 7and g(x)=2x −6, find the following. (If an answer is undefined, enter UNDEFINED.) f(−2) − g(−2)
May 1, 2013

Algebra
Given f(x)= 2x^2 – 1 and g(x) = –2x + 1, find the following. f(3) − g(3)
May 1, 2013

English Composition
I know that mood and tone are different, but is mood considered an element of literature?
April 17, 2013

chemistry
how much heat is required to vaporize 343g of liquid ethanol at its boiling point?
March 25, 2013

science
In the laboratory small zircon crystals were separated from granite (K). Isotopic analysis of these zircon crystals gives a 207Pb/235U ratio of 0.45. the half-life of 235U (7.04 × 108 years), estimate the age of the granite in Ma to two significant figures
March 10, 2013

Chemistry
You are using concentrated hydrochloric acid solution (12.0 M)to make 445.0 ml of a 5.85 M solution. Calculate the number of milliliters of concentrated HCl required to make the solution.
March 7, 2013

math
Correct the right hand side of the following expressions. 5+ x = 5 + X 2 6 2 + 6 6x + 5 = x + 5 6 1 1 1 y + c = y + c
February 20, 2013

Math
Jake ate seven times more jelly beans as Sam. Together they ate 128 jelly beans. How many jelly beans did each person eat?
February 11, 2013

Finance
An investment pays 9 percent interest compounded semi-annually. What is the effective annual interest rate?
January 31, 2013

cccs
f/-11 < 9
January 14, 2013

physics
an elevator motor provides 45 W of power while lifting a 2000 kg elevator 35 m. if the elevator contains six passengers of the same mass and it takes 20.0 to accomplish this task, determine pass of each passenger.
January 12, 2013

american government
Which of the following is characteristic of a capitalist economic system? a. free enterprise b.self-reliance c.private property d.individualism e.all of the answers are correct
December 30, 2012

language arts
“In the snow” is repeated three times in “Scott’s Goodbye.” What meaning might the writer have hoped to convey by repeating this phrase?
December 17, 2012

Calculus!
A 16 ft. ladder leans against a wall, with the top being 12 ft. from the wall when time t=0. The top is sliding down at a constant rate of 4 ft./second. Given that the top of the ladder touches the ground at 3 seconds, what is the velocity of the bottom of the ladder when t=3?
November 23, 2012

MATH,statistics
At a recent scotch-tasting party, 20 faculty members and their (opposite sex) spouses were guzzling it back pretty well. One person quite correctly noticed that the women seemed to be drinking more than the men. If the mean number of drinks had by the men was 5, and that for ...
November 2, 2012

A ladder is 30 feet tall it is 5 times taller then Mr. Jones How tall is Mr. Jones
October 24, 2012

statistics
If other factors are held constant, how does increasing the number of scores in each sample affect the value of the independent measures t statistic and the likelihood of rejecting the null hypothesis?
October 21, 2012

U.S History
C,B,C,D,C,B,A,A,B,C,D,A,C,C,A this is for 1-15
October 17, 2012

Physics
if you were on a 22.7 degree slope and an avalanche started 425 m up the slope, how much time would you have to get out of the way, there is no friction.
October 15, 2012

physics
A box of books weighing 324 N is shoved across the floor by a force of 527 N exerted downward at an angle of 35 below the hori- zontal. The acceleration of gravity is 9.81 m/s2 . If μk between the box and the floor is 0.59, how long does it take to move the box 4.35 ...
October 15, 2012

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