Saturday
October 1, 2016

Posts by lin

Total # Posts: 139

math
An arithmetic progression as the same first and second terms as the geometric progression. Find the sum of the first 20 terms of the arithmetic progression. How do I do this? I tried to find the common ratio for G.P. and then substitute it to find the 20th term but, still have...
September 14, 2016

Math
List the multiples of 4 from 8010 to 8019
August 29, 2016

Discriminant
b^2-40<0 is [b+(2square root 10)][b-(2square root ten)] Could you explain how did it become like tat? Thks!
June 3, 2016

Alpha, beta
Ohhh ok, thks!
June 3, 2016

Alpha, beta
When I had to form an equation, I got x^2-2x+11/9. Do I have to get rid of the fraction and make it to be 9x^2-18x+11=0?
June 3, 2016

CHINESE
Just wanted to add a tip, you can't directly translate English to Chinese. Often, it doesn't make sense. You have to read a lot and Chinese will become very easy:)
May 25, 2016

CHINESE
No the previous answer is wrong that is direct translation which would not make sense. I assume u mean I am very happy today about everything. 我对今天所发生的一切很高兴。Which means I am very ...
May 25, 2016

Divinity
dont have an answer plizz help
May 5, 2016

Divinity
Discuss the significance of such phrases as "thus says the lord"in prophetic oracles,do they gurantee divine authority
May 5, 2016

Math
Jan is making a pencil holder out of plastic canvas. The pencil holder is 4 inches high. It will not have a top. Each edge of the square base is 3 inches long. How much plastic canvas does Jan need?
April 3, 2016

math
how to do this?? 11/15=(1/a+(b/c+(d/e+f))) find a,b,c,d,e, and f??
November 27, 2015

math
how to do this? In an island, a number of survivors have enough food to last for 5 days. After 2 days, 4 of the survivors died and the remaining food lasted for 5 more days. Find the original number of survivors...
November 27, 2015

math
what is the remainder when 2^1000 is divided by 7??
November 27, 2015

math
how to solve for x? 5^x=(25^(2x-1))(125^(4-2x))
November 27, 2015

Art
how are art and conservation science connected in this sculpture? A. The artists was repurposing materials to create art B. The artists only used brand-new materials to create art. C. the artists created a piece that could not be sen by others D.The artists used chemical ...
November 12, 2015

Science
@Ms.Sue Ive been waiting for 2 hours ):
October 28, 2015

Science
which of the following could not have happened as a pot of water boiled on the stove? A. Particle vibration increased. B. Particle vibration decreased. C. Particles moved father apart. D. Particles moved randomly. My answer is C.
October 28, 2015

physics
<Note> I find the problem from the testbook: Physical Chemistry 10th by Atkins. In this book, It gives "gas at 250 K and 15 atm has a molar volume 12 per cent smaller than that calculated from perfect gas law", so I used the condition"12%". If your ...
August 7, 2015

physics
1st think that: perfect gas law means PV = nRT, and molar volume is V/n = Vm (m is subscript actuall) so, it can be PVm = RT Z = PVm/RT = 1 for perfect gas (or ideal gas) now, we know that" molar volume smaller than calculated from perfect gas law " so Vm(gas) = (100...
August 7, 2015

MATH
TO MIX A PUNCH, LINDSAY BEGINS WITH 3 LITERS OF LEMON-LIME SODA AND ADDS 1,893 MILLILITERS OF CRANBERRY JUICE. HOW MANY 250 ML GLASSES OF PUNCH CAN BE SERVED. ROUND TO THE NEAREST TEN.
May 16, 2015

WORD PROBLEM
A roofer's 30 FOOT ladder is against the side of a house. It is 8 YARDS from the ground to the top of the house. How far away from the house must he place the foot of the ladder in order to have the top of the ladder meet the roof of the house?
May 13, 2015

Chem
How many moles of NH3 must be added to 1.00 L of solution to dissolve 0.979 g of CuCO3? For CuCO3, Ksp = 2.3 × 10-10. Ignore hydrolysis of CO32-, but consider the formation of the complex ion Cu(NH3)42+.
March 9, 2015

trig
An airplane is traveling at a speed of 724 km per hour at a bearing of N30°E. If the wind velocity is 32 km per hour from the west, find the resultant speed and direction of the plane.
February 23, 2015

nusyu
A small, spherical bead of mass 3.00 g is released from rest at t = 0 from a point under the surface of a viscous liquid. The terminal speed is observed to be £oT = 2.00 cm/s. Find (a) the value of the constant b that appears in Equation 6.2, (b) the time t at which the ...
October 17, 2014

mathematic
p=74n-850
September 30, 2014

probability
Let Y=X2. Calculate the following probabilities: P(Y=0)= P(Y=1)= P(Y=2)=
February 27, 2014

physics
This can happen if the only forces acting are internal to the system
February 4, 2014

phy
What is the distance between an object and its real image formed by a thin converging lens with focal length f = 21 cm, if the object distance is 100 cm? (b) What is the minimum object-image distance for a real image formed by that lens?
November 8, 2013

Math
a gym charges an intitL $100 membership fee and $60 each month. Write an equation that represent the total cost, C, for belonging to the club for M months
October 7, 2013

ACC
PATTYS BAKER HAS A COST OF GOODS SOLD FOR THE YEARS 2011,2010,AND 2009 RESPECTIVELY , OF $28,600,$26,900. AND $25,600. IF 2009 IS THE BASE YEAR, THE TREND PERCENTAGE FOR 2011 IS?
September 22, 2013

BUS
PROVIDED ACCOUNTING SERVICES,AND ANALYZED THE FINANCIAL STRENGTH OF HER CLIENTS BUSINESSES. CARMEN IS WORKING AS A
August 12, 2013

Math
A man bought a house for 76,000. he made a down payment of 26,000 and agreed to pay 2,500 each year with a interest of 14% on an unpaid balance. His payment at the end of the second year was?
August 8, 2013

heeeeeeelp math
For every positive integer n, consider all monic polynomials f(x) with integer coefficients, such that for some real number a x(f(x+a)−f(x))=nf(x) Find the largest possible number of such polynomials f(x) for a fixed n<1000.
July 11, 2013

heeeeeeeeelp math
A subset S of {1,2,…,n} is said to be packed if whenever i,j∈S the number ⌊(i+j)/2⌋ is also in S. Determine how many subsets of {1,2,…,25} are packed. Details and assumptions i and j need not be distinct. If i=j is in the set, then clearly so is &#...
July 10, 2013

heeeeeeelp math3
For every positive integer n consider all polynomials f(x) with integer coefficients, such that for some real number a *x(f(x+a)−f(x))=n*f(x) Find the largest possible number of such polynomials f(x) for a fixed n<1000?
July 10, 2013

heeelp math2
Find the number of polynomials f(x) that satisfy all of the following conditions: f(x) is a monic polynomial, f(x) has degree 1000, f(x) has integer coefficients, f(x) divides f(2x^3+x)
July 10, 2013

heeeeeelp math
i am Clavin
July 10, 2013

heeeeeelp math
A subset S of {1,2,…,n} is said to be packed if whenever i,j∈S the number ⌊(i+j)/2⌋ is also in S. Determine how many subsets of {1,2,…,25} are packed. Details and assumptions i and j need not be distinct. If i=j is in the set, then clearly so is &#...
July 10, 2013

cananyone solvethis math
A subset S of {1,2,…,n} is said to be packed if whenever i,j∈S the number ⌊(i+j)/2⌋ is also in S. Determine how many subsets of {1,2,…,25} are packed. Details and assumptions i and j need not be distinct. If i=j is in the set, then clearly so is &#...
July 9, 2013

heeeeeeeeelp math
For every positive integer n consider all polynomials f(x) with integer coefficients, such that for some real number a *x(f(x+a)−f(x))=n*f(x) Find the largest possible number of such polynomials f(x) for a fixed n<1000?
July 9, 2013

heeeelp math
Find the number of polynomials f(x) that satisfy all of the following conditions: f(x) is a monic polynomial, f(x) has degree 1000, f(x) has integer coefficients, f(x) divides f(2x^3+x)
July 9, 2013

heelp math
A graph is constructed iteratively according to the following algorithm. The graph starts as a single vertex. With probability p, the graph stops here. Otherwise, 3 new vertices are constructed and joined to this vertex. If we have a graph with more than one vertex, for each ...
July 8, 2013

heeeeeelp math
For every positive integer n, consider all polynomials f(x) with integer coefficients, such that for some real number a x*(f(x+a)−f(x))=n*f(x) Find the largest possible number of such polynomials f(x) for a fixed n<1000?
July 8, 2013

Computer pls help
A Harshad Number in a given number base is an integer that is divisible by the sum of its digits when written in that base. For example, the number 11 in base 5 (which is 6 in base 10) is divisible by 1 + 1 = 2 in base 5. It is therefore a Harshad number in base 5. 1 is the ...
July 7, 2013

heeeeeelp math
In a tetrahedron ABCD, the lengths of AB, AC, and BD are 6, 10, and 14 respectively. The distance between the midpoints M of AB and N of CD is 4. The line AB is perpendicular to AC, BD, and MN. The volume of ABCD can be written as a√b, where a and b are positive integers...
July 7, 2013

heeeeeelp math
x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?
July 7, 2013

heeeeeelpm math
A strip of 41 squares is numbered 0,1,2,…,40 from left to right and a token is placed on the square marked 0. Pinar rolls a pair of standard six-sided dice and moves the token right a number of squares equal to the total of the dice roll. If Pinar rolls doubles, then she ...
July 7, 2013

Math (Geometry)
150
July 7, 2013

plls help maaath
f(x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?
July 6, 2013

heeeeeeelp math
f(x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?
July 6, 2013

heeeeeelp computer
A Harshad Number in a given number base is an integer that is divisible by the sum of its digits when written in that base. For example, the number 11 in base 5 (which is 6 in base 10) is divisible by 1 + 1 = 2 in base 5. It is therefore a Harshad number in base 5. 1 is the ...
July 5, 2013

heeeeeeeelp math
In triangle ABC, ∠A=20∘ and ∠B=80∘. Let D be a point on line segment AB such that AD=BC. What is the measure (in degrees) of ∠ADC?
July 5, 2013

helllllppp math
In a tetrahedron ABCD, the lengths of AB, AC, and BD are 6, 10, and 14 respectively. The distance between the midpoints M of AB and N of CD is 4. The line AB is perpendicular to AC, BD, and MN. The volume of ABCD can be written as a√b, where a and b are positive integers...
July 5, 2013

heeeeeeeeeeelp math
A strip of 41 squares is numbered 0,1,2,…,40 from left to right and a token is placed on the square marked 0. Pinar rolls a pair of standard six-sided dice and moves the token right a number of squares equal to the total of the dice roll. If Pinar rolls doubles, then she ...
July 5, 2013

heeeeeeeelp math
Find the smallest n such that for some prime p, at least 20 of the numbers 1,2,...,n are quadratic non-residues modulo p.
July 5, 2013

physics helpdifficult
i want the answer just dont leave it upon me just giving the process..................................................................................................Two thin and identical steel rods move with equal speeds v=1 m/s in opposite directions and collide ...
June 27, 2013

math waaaaarning
Find the sum of all primes q<1000 such that for some prime p<q , both q divides p^3-1 and p divides q^3-1
June 26, 2013

heeeeeeeelp physics
Two thin and identical steel rods move with equal speeds v=1 m/s in opposite directions and collide longitudinally.The collision is perfectly elastic and the rods swap their velocities. How long does the collision last in seconds if the length of the rods is l=30 cm. Assume ...
June 26, 2013

Math (Combinatorics)
Two thin and identical steel rods move with equal speeds v=1 m/s in opposite directions and collide longitudinally.The collision is perfectly elastic and the rods swap their velocities. How long does the collision last in seconds if the length of the rods is l=30 cm. Assume ...
June 26, 2013

Math (Combinatorics)
16
June 26, 2013

help maaaaath
Find the largest possible number of distinct integer values {x_1,x_2,…,x_n}, such that for a fixed reducible degree 4 polynomial with integer coefficients, |f(x_i)| is prime for all i?
June 23, 2013

plsheeeeeeeeeeelp math
Find the largest possible number of distinct integer values {x_1,x_2,…,x_n}, such that for a fixed reducible degree 4 polynomial with integer coefficients, |f(x_i)| is prime for all i?
June 22, 2013

heeeeeeeeelp math
Optical fibers are devices used for guiding light in many applications, most notably for fast communication. A fiber consists of a glass cylinder surrounded by a wall covered in a special coating. The fibers work on a principle called total internal reflection: light enters ...
June 20, 2013

Geometry math
I have been wondering this too
April 17, 2013

geometry
sodium has a body-centered cubic structure with a unit cell that is 430 picometers wide. estimate the radius of a sodium atom. please help me, I don't know how to get the solution. THank you
January 28, 2013

math
The following numbers can be represented as 8-bit numbers in the binary representation.Which of these has a ‘1’ in the second place from the right in the binary representation? A. 171 B. 185 C. 214 D. A and C
January 15, 2013

statistics
considering that a research can test at the <p=.05(95%), p=.001 (99.9%) level for statistical significance, how would you use these 3 levels in relationship to risk to patients in implementing the decision of your research?
December 22, 2012

college biology
1/4 A 1/4 B 1/4AB 1/4 O
December 9, 2012

math
Assume the $8,000 Treasury bill, 1.75% for 50 weeks. Calculate the effective rate of interest.
October 31, 2012

physics
A certain elevator cab has a total run of 204 m and a maximum speed is 321 m/min, and it accelerates from rest and then back to rest at 1.21 m/s2. (a) How far does the cab move while accelerating to full speed from rest? (b) How long does it take to make the nonstop 204 m run...
October 16, 2012

chemistry
A 10.0 ml diluted chloride sample required 44.89 ml of 0.01982 M AgNO3 to reach the Fajans end point. how many moles of Cl- ions were present in the sample? What was the concentration of chloride in the diluted solution?
October 8, 2012

algebra
A total of $12,000 is invested in two funds paying 9% and 11% simple interest. If the yearly interest is $1,180, how much of the $12,000 is invested at each rate? We have two unknowns: the amount of money invested at 9% and the amount of money invested at 11%. Sentence (1) &#...
October 6, 2012

math
Facebook is becoming a social superpower with 126 million registered members who log in at least once daily. They share 1.6 billion photos and 10.6 million videos each month. What is the average number of photos and videos that each active member posts? Round to the nearest ...
September 5, 2012

Math
Ada has 5 pints of Apple.she need 3/2 pints to make a batch of Apple ice cream. How many batches of Apple ice cream can Ada make?
August 5, 2012

Calculus
Suppose f(x) is a differentiable function with f(-1)=2 and f(2)=-1. The differentiable function g(x) is defined by the formula g(x)=f(f(x))' A. Compute g(-1) and g(2). Explain why g(x)=0 must have at least one solution A between -1 and 2. B. Compute g'(-1) and g'(2...
April 1, 2012

math
32.5
November 23, 2011

English
Hi can you please help correct this paragraph or give me direction. Thank you, the assignment is: Your cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You know she plans to ...
September 9, 2011

English
I have posted this in 2 different places. I get confused about what corrections I submit. sorry
September 8, 2011

science
13.333333
May 19, 2011

algebra II
Find the payment necessary to amortize the loan. 11) $ 1500; 6% compounded annually; 7 annual payments 11) _____ A) $ 271.33 B) $ 241.55 C) $ 305.05 D) $ 268.70
March 27, 2011

Physics
The first one is the diagram, the image is yuer365.info/pictures/4 Diagram.jpg Sorry that I have to post image as the question is based on the diagram. Thank you!
February 27, 2011

Physics
Physics question on identify the reaction? I am having trouble with the question a, b, and c in this physics problem: One or more external forces are exerted on each object enclosed in a dashed box shown in the figure below. Identify the reaction to each of these forces. (...
February 27, 2011

algebra
on three consecutive passes a football team gains 7 yards, loses 22 yards, and gains 33 yards, what number represents total yardage?
February 9, 2011

math
log
January 31, 2011

calculus
Find the dimensions of a right circular cone, that holds one liter and is made with a minimum amount of sheet metal. It is open on the top.
December 15, 2010

Physics
If given the ratio of temperatures in Celsius to Kelvin for Gold to silver as 1.10614 to 1.08265. How can I find the temperatures of each individual element form just this information?
December 8, 2010

Chemistery
How much heat is contained in 4 liter of liquid methanol (CH2OH) when it is completely combusted (excess oxygen) to form carbon dioxide and water. the density of metanol is 0.7918 g/ml.
October 30, 2010

managerial economics
32
October 18, 2010

math
x 0 0.2 0.4 0.6 0.8 1 1.2 f(x) -2 4.16 4.32 4.48 4.64 7.8 7.96 estimate of f′′(0.6).
October 8, 2010

math
The population of bacteria in one cubic centimeter of the blood of a sick person has been modeled by the function P(t) = 115 t(0.88^t) where t is the time, in days, since the person became ill. Estimate how fast the population is changing 14 days after the onset of the illness...
October 6, 2010

Chemistry
Thank you so much. That makes more sense. I had in 85, not 15.
July 17, 2010

Chemistry
A reaction is first order and it takes 324 minutes for the reaction to be 50.0% complete. How long will it take for the reaction to be 85.0% complete at the same temperature? 2. N2O5 decomposes to N2O4 and O2 and the reaction is first order in N2O5 with a specific rate ...
July 17, 2010

accounting
1.67 is BEP CM Ratio is 0.60 £¨30-12£©/30
May 16, 2010

accounting
1.67
May 16, 2010

sociolgy
It has been said that modernization theory assomes that in backward areas modernity-inhibiting characteristics are dominant. This suggests that the effects of international factors and positive of traditional culture have no bearing on the lack of modernization. Defend or ...
December 18, 2009

Math
How do I write each of the factors as multiples of 10 or 100, group them so the multiples of 10 are together and determine the final product?
November 22, 2009

child development and human behavior
1/c 2/c 3/ab 4/a 5/c 6/d 7/d 8/a 9/b 10/a 11/a 12/b 13/c 14/d 15/a 16/b 17/a 18/c 19/a 20/a 100% Right
October 20, 2009

FINANCE II
THE EXTENT TO WHICH INVENTORY FINANCING MAY BE USED DEPENDS ON?
October 6, 2009

math word problems
A ladder is leaning against a building. The distance from the bottom of the ladder to the building is 9 ft less than the length of the ladder.how high up the side of the building is the top of the ladder if that distance is 2 ft less than the length of the ladder? the ladder ...
August 1, 2009

muet
summary about parental guidance and home enviromen are the key to a childs academic excellence
July 11, 2009

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