Questions Asked on
June 12, 2017

maths
the length of a rectangle is 4 times than its width. the area of the rectangle is 1024cm2 find the length of the rectangle the perimeter of the rectangle 4 square has the same perieter as that its rectangle. Find the area of the square.
asked by kareena 
Chem 1
Use oxidation states to identify the element that is being oxidized in the following redox reaction: Cu(s)+2 H 2 S O 4 (aq) → CuS O 4 (aq)+S O 2 (g)+2 H 2 O(l)
asked by ivy 
Math
Tom sold half of his comic books and then bought six more. He now has twelve. How many did he begin with?
asked by Gail R 
Math
Calculate the probability that 200 rolls of two dice rolls will include a) more than 30 sums of 5 b) between 30 and 40, inclusive, sums of 5
asked by Joe 
chemistry
Consider the following equation: CO + 2 H2 → CH3OH △H rxn = 128 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 8.08 g H2. how would i set this up?
asked by s. 
math
Express this ratio as a fraction in its lowest term ?25cm to 3m.
asked by Anonymous 
math
If a single die is tossed once, find the probability that you roll an odd number. 3?
asked by bev 
math PLZ HELP
Which expression represents 12 times the number n? a: n+12 b: 12n c: n12 d:n/12
asked by Kayla 
computer
A coworker calls you at 9:00 a.m. at work and asks for a favor. He is having car trouble and will be an hour late for work. He explains that he has already been late for work twice this month and that a third time will cost him four hours of pay. He asks
asked by nav 
math
Two sides of a triangle measure 25 cm and 35 cm.Which could be the third side.
asked by jordan 
Math  algebra
Oceanside bike rental shop charges 14 dollars plus 9 dollars an hour for renting a bike. Joan paid 86 dollars to rent a bike. How many hours did she pay to have the bike checked out? X is unknown N= 9h+14 86= 9h+14 8614
asked by Gail R 
English
I called you several times, but you didn't answer me. Where were you? I was at home, listening to music.  [In this situdation, can we use both sentences? Are both the same in meaing? Which one is commonly used?] 1. I was
asked by rfvv 
geomtry
A parallelogram is transformed according to the rule (x, y) â†’ (x, y). Which is another way to state the transformation
asked by Anonymous 
physics
Two boxes are connected by a cord running over a pulley. Box A is on a table and Box B is hanging off of the pulley. The system is released from rest and Box B drops a distance D. What is the word done by gravity on box B?
asked by Riley 
Chemistry Henry's Law
Why Ammonia is a deviation from the Henry's Law,when it is dissolved in water? Does that has anything to do with Ammonia having Hydrogen bonds? Or what could be the reason?
asked by Shenaya 
math
If a single die is tossed once, find the probability that you roll 6 or 5 or 1. is it 1/6 ? or 1/2 ?
asked by bev 
math
If a single die is tossed once, find the probability that you roll 9. A. 9 B. 0 C. 1 D. 9/6 a?
asked by bev 
Science
A body travells along the circular path of radius 70m after travelling half a revolution in 20sec find avrage velocity and avrage speed
asked by Om varshney 
Math
sum of money borrowed at a particular rate of interest amounts of Rs 8320 in 2years and Rs 9685 in 3 and half years.Find the sum borrowed
asked by Netra 
Geometry
Which of the following describes the growth rate of the exponential function in the graph below?
asked by jordan 
Algebra
1. Draw an algebra tile model for the polynomial in simplified form: 8x^2  4x 3x^2 + 6 + 2x 7 8 big blue squares, 4 bars, 3 big red squares, 6 little yellow squares, 2 green bars, 7 little red bars; (is this correct?) 2.Study the diagram of algebra
asked by Anonymous 
Organic Chemistry
What will happen from the following if H3CC6H6N2Cl is treated with Na2CO3? a)CO2 will emit 2)NH3(g) will emit c)N2ClC6H6CH3 will be produced d) NH2C6H6CH3 will be produced We get C6H6NH2 when Sn/conc.HCl are reacted with Nitro Benzene.This become
asked by Shenaya 
Chemistry
Under special conditions D2 is reacted with Ca to make CaD2.What would result if D2 is reacted with H2O?
asked by Shenaya 
Chemistrytitrations
When an acid is titrated with a Carbonate, do we have to heat the system when Hph is the indicator? If so what is the reason?
asked by Shenaya 
math
If we express 3x^2  6x  2 in the form a(x  h)^2 + k, then what is a + h + k?
asked by helppp 
MATHS
IF C IS JOINTLY VARIES AS S AND INVERSELY VARIES AS THE FORTHROOT OF M WHERE C=23083 AND M=256 WHERE S=55 FIND THE FORMU
asked by ABDULLAHI 
Math
A map has a scale of 2 cm for every 25 miles. The distance on the map between Griffin Park and the San Diego Zoo is 10 cm. How far is the actual distance?
asked by Anonymous 
science  physics
A car us moving with a speed of 60km per h . suddenly the breaks are applied , and the car brought to rest in 10 sec. calculate the accelaration of the car.
asked by naz 
MathematicsIntegration
How do we integrate {[1/(√(1x^2) )]*[ln(2x+3)(√(1x^2))] } ? Is there any suitable substitution or do we have to do this by parts? I don't have any idea to proceed on.
asked by Shenaya 
physics
A boat crosses a river of width 174 m in which the current has a uniform speed of 1.13 m/s. The pilot maintains a bearing (i.e., the direc tion in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 0.96
asked by vero 
Math
Simplify the polynomial 2x^2 + 6x  7x + 8  3x^2 + 1 A)2x^2 + x + 9 B)2x^2  x  9 C)x^2  x + 9 D)x^2 + 9 Please help me
asked by Valerie 
Math
Four number have an arithmetic mean of 6 if fifth number is added to set the mean rises to 8 what is number added?
asked by Mohammed 
Math
The usual price of a swimsuit was £60.A discount of 15% was given at a sale.Davinda bought the swimsuit and gave the cashier £100.How much change did she receive?
asked by Monet 
Math
Printer A prints 50 cards per minute while Printer B prints 40 cards per minute.How long will it take both printer working simultaneously to print 1350 cards together?
asked by Jay 
physics
A worldclass sprinter can burst out of the blocks to essentially top speed (of about 14.9m/s) in the first 11.6m of the race. How long does it take her to finish the 200m race?
asked by Francis 
Maths
x+2y=9 2x4y=2
asked by Pujary 
Algebra 1B
solve #27 page 669 (4a^26+3a)/(7+4a) my answer is 4a^2+3a*6 over 4a+7 but I need to use long division please help
asked by Bunny 
Maths
Use graphical method x+2y=9 2x4y=2
asked by Pujary 
maths
Solve for all x such that: (1+(1/x))^(x+1)=(2000/1999)^1999
asked by un 
physics
A 5kg block is being moved to 3m by a force of 50N inclined to the horizontal at an angle of 30°. Assuming that a friction force of 5N opposing its motion ,find the acceleration of the block and the work done by the block.
asked by Philomena 
History (1900’s)
Hey peeps can you guys pretty please give me a list of the challenges of immigration in the 1900's? I have been researching for like literally tree days. Please help me before I melt~ I have this: Immigrants may have been turned down at the front gates.
asked by Crybaby 
Health Care Statistics
Computers are great for performing statistical calculations, but they must be programmed accurately to calculate correctly. When is statistical data considered “garbage” and how do you correct it? help?
asked by Anonymous 
Language Arts
Think about the work you completed in your reading character role. Determine the ideas that would be most worthy to share in a literary discussion about Dragonwings. Provide an explanation for your choices. How did the role you selected and the work you
asked by PLZ HELP 
physics
Why is that a lighter object with the higher velocity produces a higher kinetic energy than a heavier object with lower velocity ?
asked by Riley 
maths
(x+y)(x+z)(y+z)=2017^n What is the minimum value n of such that there exist positive integers x,y and z satisfying the equation above?
asked by un 
Health Care Statistics
A hospital that is allowed to use its beds for either acute care or skilled care is referred to as a _____. A. Swing bed hospital B. Tertiary care hospital C. District hospital D. Long term care hospital E. None of the above, it should be
asked by Anonymous 
math
Find the 6th term in the expansion (x^2  1/x)^25 It is a Binomial Theorem problem and I am extremely confused. Please and thank you!
asked by K 
Math
The number of subject passes obtained students in 8 grade examination are tell(3 3 4 3 5 3 2 2)(2 3 1 3 4 2 6 3)(4 3 2 0 3 3 3 4)(2 1 2 4 3 3 2 2) A)make a frequency distribution table of passes obtained by students. B)how many students were in the class?
asked by Mohammed 
Electrical
A circuit consists of parallel combination 8&12ohms& unknown resistance of R ohm is connected in series with it the total power consume is 70w. When the source voltage is 20V calculate the value of unknown
asked by Prasad 
Chemistry
When you pour molten salt(NaCl) into the water, it explodes. But if you pour molten sodium bicarbonate into the water, there's no explosion. Why is this happening??? I'm so confused and I have seen a video of this actually happening. Please help!
asked by Michael 
Physics
5liters of alcohol has a mass of 4kg.the density of alcohol?
asked by Gokul 
Math
Draw a circle with 5cm radius. Inscribe a triangle with side ratio 5:6:7 in it.
asked by Jt 
math
if c is jointly varies as s and iversely varies as the forthroot of m where c=number and m=256 where s=55(1)find the formula connecting the variable?
asked by umar 
Math
In how many ways a set can be written? Two or three. I am confused please tell me correct.
asked by ABC 
math
Solve: [(1+(1/x)]^(x+1)=2.717602229679
asked by un 
math
June earns $13650 dollars in a year. She has to pay 12.5% tax on this amount. How much tax does she pay?
asked by Hanna 
Maths
Alisa has a stride of 0.5 a metre. If she travels by walking 2 steps forward and one step back, What is the least number of steps she needs to reach a spot of 20 metres? BTW answer is not 120 m
asked by tahlia 
maths
the length of a rectangle is four times that its width. The area of the rectangle is 1024cm2 find the width of the rectangle
asked by kareena 
math
At the beginning of the year business had total assets of 50,000 and total liabilities of 15,000. if total liabilities decreased by 10,000 during the year how much the amount of total assets in the end of the year?
asked by ahmedkhalfan 
Maths
A bus travels at 70km/h for x hours and then at 80km/h for 0.5(x+3) hours. the total distance travelled was 460km. Determine x correct to the nearset minute.
asked by Luke 
MathematicsIntegration
Question: For any positive integer n,show that integrate.[(sin x)^2n dx ] from o  π/2 = [(2n)!*π]/[(2)^(2n+1)*(n!)^2 ] What I thought: Let I =int.[(sinx)^2n dx] And again I= int.[ (sin(π/2x))^2n dx] = int.[ (cos)^2n dx] 2I= int.[(sin x)^2n + (cos
asked by Shenaya 
math
Simplify the expression 3(7 – x) + 5. A. 26 – x B. 16 + 3x C. 26 – 3x D. 16 – 3x C?
asked by bev 
MathematicsIntegration
Question: f(x)=ax^2 + bx + c {a,b,c €R} When 0
asked by Shenaya 
physics
vector A = a displacement of 20 m due east vector B = a displacement of 30 m north find the magnitude and direction of the vector sum a+b
asked by torrance 
English
The dog's master worked in the workplace. Later he came back home. He saw his dog. He said, "I'm home."  Can we use 'I'm at home.' in this situation? What is the difference between them?
asked by rfvv 
math
Simplify the expression 4(x – 3) + 2. A. x – 10 B. 4x – 1 C. 4x – 14 D. 4x – 10 D?
asked by bev 
English
1. He saw most of the boys. 2. He saw most of his boys. 3. He saw most of these boys. 4. He saw most of some boys. 5. He saw most of ____ boys.  Q1: Are the sentences all grammatical? What about #4? Can we use #4? Q2:
asked by rfvv 
Maths
2(3a + 4)
asked by Caylen 
Math probability
I have got 18 red , 12 green, 5 blue and 5 yellow balls in the bag. What is the probability that I pick excatly 2 green when I pick 4 at random ? What is the probabily that none are yellow after I pick 4 at random ? Thanks.
asked by didier 
Micoeconomics
Explain the profit maximation conditiond of multi plant monoplist?
asked by James 
physics
A mountaineer is doing a vertical rappel. She is using a big boulder as her anchor. The Mountain guides association advises that in this type of situation, the boulder should be bigger than a refigerator and should be sitting on a surface that is
asked by Riley 
Math
I have got 18 red , 12 green, 5 blue and 5 yellow balls in the bag. What is the probability that I pick excatly 2 green when I pick 4 at random ? What is the probabily that none are yellow after I pick 4 at random ? Thanks.
asked by didier 
economics
Define utility using mathmatical expression.
asked by James 
Economics(help!!!)
A monopolist is deciding how to allocate output between two markets that separated geographically. Demands for the two markets are P1=15Q1 and P2=252Q2.The monopolist's TC is C=5+3(Q1+Q2).What are PRICE,OUTPUT,PROPISTS, MR if a)the monopolist can price
asked by James 
statistics
A female patient has had her red blood cell count tested on 6 occasions. A mean of 4.4 with sample standard deviation, s, of 0.28 was found. Generally, healthy, female adults have a red blood cell count of 4.8. Conduct a hypothesis test to determine if the
asked by abdulai 
Physics
What is the weight (in Newtons) of a 98.17 kg mass?
asked by Tony 
Algebra 2
The average daily minimum temperature for Pablo’s hometown can be modeled by the function f(x)=15.3sin(πx6)+44.1 , where f(x) is the temperature in °F and x is the month. x = 0 corresponds to January. What is the average daily minimum temperature in
asked by sammiexo 
probability
Collin has a fair coin and a fair 10sided number cube labeled 110. He performs this experiment 150 times to determine the experimental probability that heads is tossed and the number 2 is rolled. Which of the following is most likely to be the
asked by logan 
Physics
Two particles are moving in a plane; one has the velocity component vix=1m/s, viy=5m/s and the other has the velocity components v2x=4m/s and v2y=3m/s if both started from the same point what is the angle between their paths
asked by Anonymous 
Chemistry  percipitates
10g of AgI is dissolved in 100cm3 of water and Na2SO4(s) is added to the solution with the ppt.After about 10mins.25cm3 of the solution is taken and added Cl2 and heated.The remains Cl2 is removed and a small amount of KI(s) is added and then the solution
asked by Shenaya 
probability
Collin has a fair coin and a fair 10sided number cube labeled 110. He performs this experiment 150 times to determine the experimental probability that heads is tossed and the number 2 is rolled. Which of the following is most likely to be the
asked by logan 
Chemistry
What is more basic KO2 or KOH? I know that KO2 is also craeted this way; KO2 + 2H2O > 2 KOH + H2O2 + O2 I think,as KOH is created by this reaction and KO2 being a raectant, the compounds created should have less strong,more stable characteristics when
asked by Shenaya 
English
1. I can forget everything. 2. I could forget everything. 3. It can happen again. 4. It could happen again.  Which ones have slight possibility? Which ones have strong possibility?
asked by rfvv 
Algebra 2 read plz
The average daily minimum temperature for Pablo’s hometown can be modeled by the function f(x)=15.3sin(πx6)+44.1 , where f(x) is the temperature in °F and x is the month. x = 0 corresponds to January. What is the average daily minimum temperature in
asked by sammiexo