Questions Asked on
June 14, 2017

Inorganic Chemistry
Can Cu2+ oxidize 1) SO2 2) C2O4(2) Does this happens also when the solution is basic? Cu2+ + H2S > CuS + H2
asked by Shenaya 
Algebra 2
A sine function has the following key features: Frequency = 14π Amplitude = 2 Midline: y = 2 yintercept: (0, 2) how would i graph this?
asked by sammiexo 
Math
What number is 1 ten thousand greater than 70,000?
asked by Izza 
maths
The 8th term of an ap is 5times the 3rd while the 7th term is 9 greater than the 4th term.write the first 5 terms.
asked by agm 
geometry
The image of trapezoid PQRS after a reflection across is trapezoid P'Q'R'S'
asked by Madhellyn 
Chemistry
Find the ratio of rate diffusion of SO2,O2, CH4?
asked by ABC 
Math
The third term of a geometric progression of positive terms is 18 and the fifth term is 162 Find the common ration and the first term? Write an expression for the Nth term of the progression? Find the sum of the first 8 terms of the progression??
asked by Emma 
MATH
A theater has a seating capacity of 1050 and charges $5 for children, $7 for students, and $9 for adults. At a certain screening with full attendance, there were half as many adults as children and students combined. The receipts totaled $7650. How many
asked by Anonymous 
Physics
Find the unit vector parallel to the vector : C=12i+24j8k. A.9/7i+5/7j+1/7k B.3/7i+6/7j2/7k. I think B is correct. Please tell me correct option and method of finding.
asked by ABC 
chemistry
Use the heat of fusion of water, 79.7 cal/g. to answer the following question. How much energy in calories is released when 30.0g of water freezes?
asked by k. corbett 
Math
One hundred meters of fencing is available to enclose a rectangular area next to river give a function A that can represent the area that can be enclosed, in terms of X?
asked by Kenneth 
accounting
examples of relevant economic events
asked by len 
Aptitude
A rectangular lawn is 50 m long and 30 m wide it has roads 2 m wide joining the mid points of opposite sides and also a path of same breadth is running along inside the lawn what is the total area of roads and paths
asked by Shivangi 
Physics
Find the angle between the vectors A=6i+8j+10k B=6i+8j10k
asked by ABC 
physics
A person standing on a vertical cliff a height h above the lake wants to jump into the lake but notices a rock just at the surface level with its furthest edge a distance s from the shore .The person realizes that with a running start it will be possible
asked by jenna 
math
A 128lb person burns 320 calories per hour riding an exercise bicycle at a rate of 10 mi/hr. a) Write a function rule to represent the total calories burned over time by that person. b) Explain how the information in the problem relates to the function.
asked by Valerie 
maths
anushka scored the following marks in five test 87,75,79,68,84. what should she score in the next test so that her average is higher than 80 marks
asked by mouparna 
chemistry
need help with a question calculate the concentration of grams of sodium stearate per milliliter of diluted solution. To do this, multiply the concentration of sodium stearate in the dishwashing liquid by the dilution of the solution(1.50 ml dishwashing
asked by Lacy 
Physics
A spring 20 cm long, is stretched to 25 cm by a load of 50N.What will be it's length when stretched by 100N assuming that the elastic limit is not reached F=ke
asked by Debright 
math
massimo has $90 in the bank. Every time he rides the buss he spends $2.50. write and solve an equation that massimo can use to see how many times he can ride the bus.
asked by nathan 
Physics
The maximum and minimum magnitudes of the resultant of two given vectors are 17N and 7N respectively. If two vectors are at right angles to each other, then find the magnitude of their resultant?
asked by ABC 
Algebra
What is the distinct letter in the word algebra?
asked by John alvin aranzado 
physics
A person standing on a vertical cliff a height h above the lake wants to jump into the lake but notices a rock just at the surface level with its furthest edge a distance s from the shore .The person realizes that with a running start it will be possible
asked by Anonymous 
physics
A wire of 10 ohm resistance is stretched to transform its original length what will be its new Resistivity and new resistance
asked by Anjuman ara 
US Government
The President can choose to get rid of democracy. A) True B) False (the correct answer?)
asked by Jake 
physics
Three cities X,Y, and Z are connected by straight highways. City X is 6 km from city Y, city Y is 4 km from city Z, and city X is 5 km from city Z. Find the angle made by the highways XY and YZ?
asked by Gigz 
MATHS
CALCULATE A PERIMETER OF A SECTOR OF A CIRCLE OF RADIUS 7CM WHICH SUBTENDS ANGLE 6ODEGREE AT A CENTRE.
asked by AKWACHA SIMON 
Combinatorics
The game is euchre which uses a 24 card deck (Ace through 9). The dealer picks up the King of diamonds, names diamonds trump, and discards the King of hearts. Dealer holds the K109 diamonds, Ace spades, and 9 of clubs. Q1. What is the probability that
asked by Eric 
Algebra 2
The graph of f(x)=cos(x) is transformed to a new function, g(x) , by stretching it horizontally by a factor of 4 and shifting it 1 unit up. What is the equation of the new function g(x) ? im so confused :/ please help
asked by sammiexo 
Math
A hockey team is lining up in a row for a group photo there team has one goalie four defence and seven forwards the photographer wants the defence on one side of the goalie and the forwards on the other side how many ways can the team stand in a row for
asked by Bailey 
Math
In fig AB=AC NB and angle ACD= 110 find angle A
asked by Anonymous 
Physics
A load of mass 80kg is placed in a lift. Calculate the reaction between the floor of the lift and the load when the lift moves upwards: (i) at constant velocity, (ii) with an acceleration 2ms 2 [Take g 9.8ms 2].
asked by Moks Amechi 
maths
The sum of the first two terms of a gp is 28, but the sum of the 3rd and 4th terms is 252. find the 2nd term of the GP if the 7th term is 5103.
asked by agm 
math
A bank offers a 7.75% annual interest rate compounded daily. The periodic interest rate is
asked by qq 
Physics 11
The diagram shows a collision between a 4.0 kg toy car and a stationary 8.0 kg toy truck. After the collision, the car bounces back at 1.0 m/s while the truck goes forward at 2.0 m/s. Based on these values, are momentum and kinetic energy conserved? Image
asked by Ryan 
Chemistry
Choose and best oxidizing agent and the best reducing agent: Ni2+, Al, H+, and I ??? I'm so confused, please help! I know the oxidizing agent is being reduced and the reducing agent is getting oxidized. But how do I use the standard reduction potential
asked by Jason 
Calc
Find dy/dx by implicit differentiation and simplify the result 1. x=sec(1/y) 2. 4xy+ln(x^2y)=7 Hello I sort of know how to do these problems but not really. :( Can someone show all the work to solving them it would help me greatly. Thank you a lot.
asked by Dora 
algebra
During a hurricane evacuation from the east coast of Georgia, a family traveled 450 miles west. For the first part of the trip, they averaged 25 mph less than the second part, where their average speed was 62mph. If the total time of travel was 9 hours,
asked by sarah 
Physics
"Two blocks lie on a triangle as shown in the figure. Block m has a mass of 8 kg and block P has a mass of 21 kg. Assume the inclines and pulleys are frictionless find the tension in the string." The two blocks are on opposite side of an isosceles triangle
asked by Courtney 
College Chemistry
A 86.3mL sample of water is initially at 17.4 degC. How many kilojoules (kJ) of heat must be added to raise the temperature of the water to 31.8? The specific heat capacity of water is 4.184 J/g.degC. How do I set this up to find the answer. Really
asked by Matthew 
Math
Find the ratio of rate dffusion of So2 ,O2,CH4?
asked by ABC 
Physics
If the vectors A and B are such that A+B=AB, then find the angle between vectors A and B?
asked by ABC 
algebra
back from break, need help again The height , h, in feet, of a bottle rocket is modeled by: where t is the time in seconds. A. Factor the expression. H = 16t^2 + 60t = 4t(4t + 15) B. What is the height of the rocket after 2 seconds? When t = 2 H = 4t(4
asked by Anonymous 
math
allison bought some shirts for her clothing store for $15 each. she recived $50 off her entire purchase and spent a total of 400 how many shirts did allison purchase for her store?
asked by nathan 
Algebra
(need help with checking answers) The height , h, in feet, of a bottle rocket is modeled by: h = 16t^2 + 60t where t is the time in seconds. A. Factor the expression. H = 16t^2 +60 = 4(4t^2 + 15) B. What is the height of the rocket after 2 seconds? H =
asked by Anonymous 
Physics
Two blocks of identical mass are placed in water. One is made of aluminum, the other of wood. The wood block is noted and therefore floating. Upon which is the buoyant force greater? 1) on the aluminum block, 2) on the wood block or 3) they both experience
asked by Sarah 
Math
I am an even number less than 100.One of my factors is 13.I am made from two consecutive digits.What number am I?
asked by Anjali 
Physics
The percentage errors in the measurement of mass and speed are 2% and 4%respectively. Then find maximum error in the measurement of K.E?
asked by ABC 
Physics
An interplanetary probe speeding in deep space suddenly needs to make a left turn. It is presently traveling at v=20000 m/s , and needs to make a quarter circle turn, continuing at the same tangential speed. It is equipped with an ion thruster rocket
asked by unowen 
English
1. Anybody can make mistakes. 2. We can go to the concert. 3. We could go to the concert.  In a grammar book, it is said that 'can' in #1 is used as theoretical possiblilty' Is that right? In #3, 'could' is used as 'present
asked by rfvv 
English
1. He may have stolen the money. 2. He might have stolen the money. 3. He can have stolen the money. 4. He could have stolen the money.  Is #3 ungrammatical? Are #2 and #4 the same in meaning? They both have slight or
asked by rfvv 
math
a wire whose length is at most 114cm,is bent to form a rectangle.If the length of the rectangle is 5cm longer than the width, what is the maximum area of the rectangle?
asked by jen 
Math
Hello, I'm not sure how to do this question. Question A wheel with radius 5 cm is being pushed up a ramp at a rate of 4 cm per second. The ramp is 620 cm long, and 180 cm tall at the end. A point P is marked on the circle as shown How far does the wheel
asked by Felix 
math
Using the quadratic formula; I have to solve 8(asquared)a+2=0 a=8, b=1, c=2
asked by lena 
accounting
Please help me to get the answers for these questions in order to help my niece for their assignment answers correctly. thanks Answers as called for show computations and analyses 1.An office machine costing p 20,000 has been used for three of its eight
asked by jessie 
Math
Arthur and Tariq are planning to build a kit car. They are also having a new garage built for the car. They have a scale drawing of their car and a scale drawing of the garage. Will the car fit the garage if the cars scale is 1cm:50cm and the garages
asked by Hannah 
Math
The boy scouts brought 12 meters of rope.theycut one half into pieces of two third in each..how many pieces did they make
asked by Fiona bianca 
maths
anuska scored the following marks in 5 test 87, 75, 79,68,84 what should she score in next test so that her average is higher than 80 marks
asked by mouparna 
Math
I am a 2digit multiple of 50.What number am I?
asked by Anjali 
physics
A mass is attached to a horizontal spring and compresses the string by 10 cm (position A). when it is released, it bounces back and stretches the spring by 10 cm (position B). Compare the potential energies at position A and B. The choices are 1). A>B, 2)
asked by Sarah 
Chemistry to DrBob222
Regarding my question on display.cgi?id=1496901710(I can't post URLs) Can we apply the formula PM=dRT seperately to the systems before and after being heated,and solve this one?
asked by Shenaya 
math
the largest among three positive consecutive odd numbers is greater than the sum of 4 and the product of 3 and the smallest number. Determine the three numbers. z>4+3 is the equation I have made but I do not know what to do next.pls. help me. thank you.
asked by jen 
Math
What is the determinant of a square matrix whose entry or element is digit or number. For example (100). Please tell me method of finding the determinant of this matrix.
asked by ABC 
math
There are some red and blue marbles in a box. There are 3/5 as many red marbles as blue marbles. Find the ratio of the number of red marbles to the total number of marbles.
asked by Real 
math
What are imaginary numbers
asked by Shyam 
math
Explain how to write a function rule from the table below. Then write a function rule. X 2, 1, 0, 1, 2, Y 2.8, 3.4, 4, 4.6, 5.2 Please help
asked by Valerie 
Math
write the equation of the hyperbola in graphing form from the given information: Vertices at (2,0) and (2,0); foci at (3,0) and (3,0)
asked by Anonymous 
maths
find the equation of the tangent to the curve 3xy^2 4+2y=29 at the point (1,3)using implicit differentiation.
asked by maria 
education foundation
Discuss the peculiarities that inform differential pattern of educational advancement in pre and post colonial Nigeria
asked by hamza ozigi 
maths
one number multiplied by three less than itself equals 18. If that number is positive, what is it? Please show working.
asked by tom 
Math
Kevin brought 2 pens and 2 erasers for $1.50. Lynn brought 1 pen and 1 notebook for $1.50. Maria brought 2 notebooks for $2.20. How much did Neal pay for 4 erasers?
asked by Alexis 
science
What is mole?
asked by Amritpal 
Math
A concrete wall is 36' long 9' high and 1 1/2' thick the number of cubic yards of concrete that were needed to make this wall is
asked by Rose ann 
English
1. I would not do so, it I were you. 2. I would not do so if I were you. (Are both okay? Do we have to delete the 'comma' in #1? 3. He could come earlier. 4. He could come earlier if he were not busy. (Does #3 mean #4?) 4. He could have come earlier. 5. He
asked by rfvv 
English
1. He cannot have told a lie. 2. It is impossible that he told a lie. (#1 mean #2. Right?) 3. He could not have told a lie. (What about #3? What is the difference between #1 and #3? What is the meaning of #3?)
asked by rfvv 
math
Split 27 in two parts such that one part is double of another. Find the parts.
asked by hello 
Maths
How will I get 100 fruits in Rs500 1watermelon= Rs50 1 apple= 10Rs 1 banana= 1Rs
asked by Uttam 
Multivariable calculus
I have to show that the relative error of the product of two positive numbers is aproximately to the sum of the relative errors of its factors. My teacher told me to use first order approximation, but I don't know how to use it.Please help
asked by Jane 
physics
T=6.28√1.63 F
asked by hjxoh 
Science
You Add a g to My word and I disappear so what word AM I?
asked by Anonymous 
Calc
FInd the derivative of each of the following function. f(x)=xcosx+x^4e^2x All I know is the rule with the e^u equation where you would do e^2x times 1. other than that I dont know what to do can someone please help and show all work I will appreciate it
asked by Sandy 
maths
present age of a boy is one less than onethird the age of his mother .
asked by kaynat 
Math
10 is greater than 7
asked by Anonymous