# Determine the length and breadth of a rectangle if the length is 3cm less than twice the breadth, and the perimeter is 18

40,002 questions, page 240
1. ## Math

The javelin event is held on the field inside the track. This field is a rectangle measuring 100 meters by 64 meters, with a semicircle at each end. Early modern Olympic javelins were designed so well that javelin throwers could throw them beyond the field

asked by Diana on February 18, 2013
2. ## Finance

Unit 4 Individual Project Deliverable Length: 2-3 pages Details: A manufacturing company is thinking of launching a new product. The company expects to sell \$950,000 of the new product in the first year and \$1,500,000 each year thereafter. Direct costs

asked by Darby on January 30, 2011
3. ## accounting

Eddings Company had a beginning inventory of 400 units of Product XNA at a cost of \$8.00 per unit. During the year, purchases were: Feb. 20 600 units at \$9 Aug. 12 300 units at \$11 May 5 500 units at \$10 Dec. 8 200 units at \$12 Eddings Company uses a

asked by vivian on October 18, 2010
4. ## math

Eddings Company had a beginning inventory of 400 units of Product XNA at a cost of \$8.00 per unit. During the year, purchases were: Feb. 20 600 units at \$9 May 5 500 units at \$10 Aug. 12 300 units at \$11 Dec. 8 200 units at \$12 Eddings Company uses a

asked by vivian on October 18, 2010
5. ## Physics

A)Two identical resistors are connected in parallel across a 30-V battery, which supplies them with a total power of 7.0 W. While the battery is still connected, one of the resistors is heated so that its resistance doubles. The resistance of the other

asked by Kristi on October 24, 2011
6. ## Physics

A)Two identical resistors are connected in parallel across a 30-V battery, which supplies them with a total power of 7.0 W. While the battery is still connected, one of the resistors is heated so that its resistance doubles. The resistance of the other

asked by Kristi on October 22, 2011
7. ## maths

determine the amount of each ordinary simple annuity. deposits of \$2550 for 7 years at 9.7% per year compounded annually Search instead for determine the amount of each ordinary simple annuity. deposits of \$2550 for 7 years at 9.7% per year compounded

asked by peace on May 22, 2017
8. ## Chemistry - van't Hoff factor

The freezing point of a salt and water mixture is -0.58 C. The freezing point of an unknown ionic solution (0.100 m) is -1.04 C. 1. Determine the freezing point depression for the ionic solution. 2. How do you determine the van't Hoff factor for the ionic

asked by Ally on September 13, 2017
9. ## Statistics- quick! Is this right?

I need to verify one of my answers quickly...the problem is: The mean annual salary for classroom teachers is \$43,658. Assume a standard deviation of \$8000. 1) Determine the sampling distribution of the sample mean for a sample of size 256. Interpret your

asked by Laura on November 1, 2007
10. ## Physics-Gauss' Law, hard

Thank you Damon for answering my first questions fast and accurately. Do you or anybody else know how to do these harder Gauss' Law Problems? 1. A solid metal sphere of radius R has charge +2Q. A hollow spherical shell of radius 3R placed concentric with

asked by Bobby on March 23, 2008
11. ## Statistics Math

Pye and Associates recently conducted a survey to determine the percent of adult county residents who believe that students in public high schools should wear uniforms to school. The telephone poll of 325 adults found that 35% of the adults believe that

asked by Michael on October 28, 2013
12. ## chemistry

Determine the pH (to two decimal places) of a solution prepared by adding 395 mL of 0.0360 M benzoic acid (C6H5COOH) to 12.5 g of sodium benzoate (NaC6H5COO).

asked by fati on November 29, 2014
13. ## college algebra

Determine the principal P that must be invested at rate r = 3 1 2 %, compounded monthly, so that \$700,000 will be available for retirement in t = 13 years. (Round your answer to the nearest cent.) P = \$

asked by tracey on March 28, 2012
14. ## Physics

A radiation with frequency 8.5×10^14Hz is incident on a metal emitting photo electrons. Taking Planck's constant, determine the threshold wavelength.

asked by Jemie on April 27, 2017
15. ## physics

a circular wire loop of radius 5cm lies in the xy-plane in a magnetic field defined by B=-(4t^2+3t).determine the voltage across the resistor at time t=2s

asked by musa on April 27, 2012
16. ## math

Forrest Lumber uses the function S(t) = -75t + 375 to determine the salvage value S(t), in dollars, of a table saw t years after its purchase. How long will it take the saw to depreciate completely?

asked by Bob on February 7, 2011
17. ## Physics

suppose that two point charges each with a charge of +1 coulomb are separated by a distance of 1 meter will they attract or repel ? determine the magnitude of the electrical force between them

asked by Quinn on January 16, 2013
18. ## algebra

Express the statement as a formula that involves the variables w, z, u and a constant of proportionality k, and then determine the value of k from the condition : w varies directly as z and inversely as the square root of u, if z = 3 and u = 4, then w = 18

asked by DOREEN on March 30, 2014
19. ## physics

4.) A 8.0 kilogram physics textbook experiences an applied force of 28.0 Newtons for 2.6 seconds. The resulting acceleration is 3.50 m/s2. Determine the change in the momentum of the book.

asked by Melissa on March 4, 2015
20. ## probability and statistics

a certain university in the region has a population of 20000 students distributed into 15 courses and four year levels.if you would like to determine the sample size, what technique can be applied

asked by fin on January 4, 2015
21. ## English

Thank you, dear Reed, for the answer. Will you please help me with one more question. Which word is the best in the context (maybe, all of them are OK): "the aim is to define/determine/identify and assess the actions of the Bush administration..."? Thank

asked by Nalmi on April 9, 2015

CuSO4.xH2O Determine the percent by mass of water in your sample of hydrated copper (II) sulfate. Show your calculations clearly. My work. i got 10% is that correct

asked by Anonymous on December 1, 2014
23. ## Chemistry

14. Using the equation of q = nCΔT determine the amount of energy required to raise the temperature of 24g of water 80ᵒC, with a heat capacity of 75.3 J/(mol*ᵒC )

asked by Naomi on March 2, 2018
24. ## Physics

suppose that two point charges each with a charge of +1 coulomb are separated by a distance of 1 meter will they attract or repel ? determine the magnitude of the electrical force between them

asked by Anonymous on January 16, 2013
25. ## pre calculus work

given f(x)= 5x+4/5x^2+4x and g(x) = 1/x a. determine the domains of f(x) and g(x) b. simplify f(x) and find any vertical asymptotes c. explain how the two functions differ I have absolutely no idea how to answer this question - can you please help me to

asked by erin on August 19, 2016
26. ## early childhood education

which one of these factors is most likely to determine the total number of children you can take into your facility (a)physical space available (b)childreds need (c)staff members skills (d)program philosophy

asked by rowan on June 22, 2011
27. ## chemistry

Using the balanced equation, determine the number of NaNO3 units in the visualization in the reaction. 3Ca(NO3)2(aq) + 2Na3PO4(aq) → 6NaNO3(aq) + Ca3(PO4)2(s)

asked by eng on January 20, 2010
28. ## chemistry

The freezing-point depression is -0.930 Celsius degree. Determine the molality of the solution of an unknown nonelectrolyte in water. Please help!! I do not understand this problem!

asked by vivian on February 7, 2012
29. ## Chemistry

Assume that it is necessary to determine the [Fe3+] in a solution that may be in the .0001 to .0005 M range. Outline a spectrophotometric method that would accurately give the required data?

asked by Kirsten on March 10, 2011
30. ## Physics

Determine the angular momentum of an object mass 25g been whirled round in a circular path of radius 20cm with a speed of of 5.0ms-1.

asked by Kenro on June 6, 2018
31. ## Data Management

Determine the number of ways of selecting four letters, without regard for order, from the word: parallelogram the answer at the back of the book is 150, but i can't seem to find out how to do this.

asked by John on March 6, 2010
32. ## Calculus

For the function f(x) =1 over x squared, determine a general expression for the slope of a tangent using the limit as h approaches 0 of (Instantaneous rate of change equation) .Then, let a = 1. What does this mean (in words) when we let a = 1?

asked by Anonymous on October 28, 2018
33. ## Chemistry

CuSO4.xH2O Determine the percent by mass of water in your sample of hydrated copper (II) sulfate. Show your calculations clearly. My work. i got 10% is that correct

asked by Rose on December 1, 2014
34. ## physics

A ray of light in air strikes a glass plate (n = 1.50) at an incidence angle of 50 degrees. Determine the angles of the reflected and transmitted rays.

asked by Darlene on March 15, 2012
35. ## Chemistry

Write a balanced chemical equation and determine the enthalpy of combustion for carbon in the diamond allotropic form. Is this the correct chemuc eq? C + O2 ----> CO2?

asked by Lana on January 14, 2016
36. ## chemistry

Determine the minimum volume of 6.40M HNO3 required to dissolve a 2.40g sample of Cu. 2NO3-(aq)+8H+(aq)+3Cu(s)-->2NO(g)+4H2)(l)+3Cu2+(aq)

asked by Catalina on April 28, 2010
37. ## Physics

A gun shoots a bullet at 1200 m/s at an angle of 600 above the horizontal. Neglecting air resistance, determine: a.) its time of flight b.) its range

asked by Peter on October 7, 2015
38. ## calculus

a piece of wire 12 inches long is to be used to form a square and or a circle.determine a function that expresses the combined area of both figures.what is its domain?

asked by natasha on August 26, 2011
39. ## chemistry

determine the percent yield when 5.00g benzene burns in oxygen gas to form 1.50g of carbon dioxide and water vapor.

asked by Anonymous on November 2, 2014
40. ## engineering

1100 kg car accelerates from rest reaching distance of 139 m in 8.7 sec determine average power in KW your answer to 2 decimal places?

asked by engineering on March 16, 2015
41. ## math

The volume of a rectangular prism is 1,000 cubic millimeters. Use the formula V equals l w hto determine which statements are true. Choose all that apply.

asked by jay on April 16, 2019
42. ## time and stress management

once you've determined your long and short term goals you can use ?to determine how to best use your time (a)filing system (b)tickler file (c)monthly calendar (d)to do list really not sure if its c or d could someone please help me

asked by susue on October 10, 2012
43. ## Chemistry

Draw a Lewis dot diagram for NF2H and use the oxidation state method of electron bookkeeping to determine how many electrons each atom should be assigned.

asked by Kali on November 21, 2011
44. ## Physics

A man walks 50 m,East, 30 m, South, 20 m,West and 10 m, North. Determine the displacement from the starting point. Find the distance traveled in FPS

asked by not on July 27, 2017
45. ## Physics

A cart released from rest at the top of a track 90. cm long takes 4.00 seconds to reach the bottom. determine the velocity after half the time.

asked by Anonymous on October 7, 2014
46. ## algebra pls pls help

Determine which polynomial is a perfect square trinomial. 49x2 − 28x + 16 9a2 − 30a + 25 25b2 − 45b − 81 16x2 − 24x − 9 is it b pls help me

asked by Oscar on May 12, 2016
47. ## Math

Determine the (binomial) coefficient. (x^2+3)^12; ax^8 I got 12C8 * (x^2)^4 * (3)^4 which is 40,095*x^16 but my teacher said it was incorrect. A similar problem to it was (x+3)^12; ax^5 where I determined the answer to be 1,732,105*x^5 which was correct.

asked by David on March 17, 2016
48. ## Pre-Calculus

I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for

asked by Cristina on September 17, 2011
49. ## Geometry

With a 12ft. pole marked in feet, how can one determine the foot of the perpendicular let fall to the floor from a point on a ceiling of a room 9ft. high?

asked by Tam on April 30, 2016
50. ## Numerical Analysis

Use Taylor series expansions (zero through fourth order) to predict f (2) for f (x) = ln(x) with a base point at x = 1. Determine the true percentage relative error for each approximation.

asked by jessy on November 2, 2012
51. ## Pre-Calculus

I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for

asked by Cristina on September 17, 2011
52. ## physics

Determine the mass of the flywheel if it is a solid disc and the dimensions are as follows: Outer diameter = 500mm Thickness = 50mm Material density = 7500 kg/m^3

asked by Aaqib on May 15, 2018
53. ## calculus

a 80.0 kg man inside a 40.0kg dumbwaiter pulls down on the rope. at that moment the scale on which he is standing reads 200 N. Determine the elevator's acceleration.

asked by debbie on November 9, 2009
54. ## Math

For the following, use the inverse relationship between logarithms and exponentials to determine x. log2(x^2−2x)=3 Solution Set:_____________? I don't know how to do this question at all :( Please help and show the work as well so that I can learn!

asked by jh on February 13, 2010
55. ## Maths

Determine how long in years it will take the value of a motor vehicle to decrease to 25% of its original value if the rate of depreciation based on the reducing balance method is 21% per annum?

asked by Lucas on February 7, 2013
56. ## Physics

A mass is vibrating at the end of a spring of force constant 225 N/m. On a position x vs time graph, how do you determine: How much energy did this system originally contain?

asked by Marie on November 15, 2007
57. ## math

determine between which consecutive integers the real zeros of each function are located. f(x)=3x^3 – 10x^2 + 22x – 4 (I got 0,1) f(x) = x^3 – 12x^2 + 17x – 9 (NO idea) f(x) = x^3 – 9 (I got 8,9) Thanks for the help, I really appreciate it. I

asked by Anon on October 25, 2012
58. ## Chemistry

Determine the empirical and molecular formulas for vanillin given that its molar mass is 152 g/mole and its composition is: 63.15% carbon, 5.30 % hydrogen and the rest oxygen

asked by villarin,jake on August 22, 2013
59. ## Math

\$58,500 a month...number of channels lease, determine what monthly rent each customer pays. 3250 1500 6250 2000

asked by Lisa on August 29, 2011
60. ## Algebra (plz)

Factor the following polynomials: 4m^2-4mp+p^2 16s+56s+49 16c^2+72cd+81d^2 How can you determine is a quadratic expression is a perfect square trinomial? TY

asked by JISHKA on February 6, 2017
61. ## Chemistry

determine the amount of water formed in 4NH3 + 5O2 4NO + 6H2O if 10 g of Oxygen is mixed with 10g nitrigen trihydride in grams

asked by Lee Walkr on February 21, 2014
62. ## ANALYSIS AND DESIGN

* A project contains Initiation, Analysis, Design, and Implementation phases. How do we determine what tasks are assigned to each phase? Provide examples to illustrate your comments.

asked by JIM on November 16, 2009
63. ## Chemistry

Determine the equilibrium constant for a 0.10M phenol (HC6H5O) solution that has a pH of 5.43 at 25 degrees C. What is the degree of ionization of this weak acid? Why is the pH value important for this problem?

asked by sea lively on July 22, 2018
64. ## science

a temperature and pressure of 23.5°C and 1.05 atm, determine the volume of sulfur dioxide produced when 150.0 g of dihydrogen sulfide react in excess oxygen.

asked by Mickeykalle on October 30, 2012
65. ## Chemistry

If 3.943 g of anhydrous salt remains after heating 5.00 g of CuCℓ2·xH2O, determine the number of molecules of water of hydration in the original hydrate.

asked by Roxanne on February 24, 2014
66. ## Math

A particle moves along a straight line with a velocity, v ms/s, given by v = 4 - 8 sin 2t where t is the time in seconds after passing a fixed point O. 1. Determine the range of values of v.

asked by Johnson on April 15, 2016
67. ## geography

on pigskin 6th gade paper october 12th 2008 question #2 determine the state capitals in whitch agame will be played.

asked by ana on October 9, 2008
68. ## Finance

Determine how much you would be willing to pay for a bond that pays \$60 annual interest indefinitely and never matures (i.e., a perpetuity), assuming you require an 8% rate of return on this investment.

asked by Raechell on February 26, 2012
69. ## Physics

Laser light of wavelength 632nm is incident on a diffraction grating having 600 lines per mm. Determine the angular separation between the first and second order maxima

asked by Felicia on May 10, 2015
70. ## chemistry

Suppose you run a total of 4.35 miles in 58.75 minutes. If you want to determine your average running speed in units of km/hr, how many significant digits will your final answer have?

asked by Anonymous on March 4, 2012
71. ## Finding OH-,H3O+, pH, and pOH?

Hi! I am very stuck with these problems. I have tried to solve for each of these values, but I keep getting the answers wrong. Q: For each of the following strong base solutions determine OH-, H3O+, pH, and pOH: 8.66×10−3 M LiOH 1.15×10−2 M Ba(OH)2

asked by Amy on March 5, 2013
72. ## Finding OH-,H3O+, pH, and pOH?

Hi! I am very stuck with these problems. I have tried to solve for each of these values, but I keep getting the answers wrong. Q: For each of the following strong base solutions determine OH-, H3O+, pH, and pOH: 8.66×10−3 M LiOH 1.15×10−2 M Ba(OH)2

asked by Amy on March 6, 2013
73. ## chemistry

In an experiment 3.10g of carbon, hydrogen and oxygen produced 4.4g of C02 and 2.7g of water on complete combustion. Determine the empirical formula of the compound ( C= 12, 0= 16, H =1)

asked by The Okome on February 27, 2019
74. ## physics

I'm not sure how to solve this..a baseball is popped straight up into the air and has a hang-time of 6.25s. Determine the height to which the ball rises before it reaches its peak.

asked by jona on February 12, 2009
75. ## English-Accented Syllables

I don't understand how to determine how many accented syllables there are in lines of poetry... How do you tell? Example: When the north wind blows its icy air to cool the earth,

76. ## Math repost for Carolyn

math - Carolyn, Friday, October 19, 2007 at 2:38pm determine wheter 120,160, and 200 form a pythagorean triple.

asked by Ms. Sue on October 19, 2007
77. ## chemistry

what two tests can I use to determine if a comound is an alcohol or a short or long chained carboxylic acid. I have two substances a colourless liquid and a white solid.

asked by Kelsey on August 9, 2010
78. ## math

determine how long it will take to repay a debt of kes66250 by weekly payments of KES 100 initiallywith an increase of 50 each month after that.how much is the final pay

asked by gaya on March 8, 2016
79. ## Physics

Determine the activity of 1.11 g of 88Ra226 (a) in disintegrations per second (Bq) (b) and in Curies (Ci). The half-life is 1600 yr (1 yr = 3.156 x 10^7 s). 1 Ci is equal to 3.7 x 10^10 Bq. I keep getting the wrong answer and use the equation H=kNo

asked by Beth on July 29, 2012
80. ## Phsyics

Determine the absolute pressure at the bottom of a lake that is 66.1 m deep. Write your answer correct to two decimal paces let Patm = 101,300 Pa

asked by Paul on March 13, 2014

Determine the net ATP production? from one molecule of acetyl CoA through the citric acid cycle and taking the products through oxidative phosphorylation?

asked by meg on April 17, 2013
82. ## math

A vehicle having a mass of 1.5tonnes is standing on an incline of 18degree to the horizontal.Determine the components of its weight parallel and perpendicular to the road surface.

asked by rory on March 11, 2014
83. ## dynamic

A truck traveling along a straight road at 20km/h increase its speed to 120km/h in 15s.if its acceleration is constant. Determine the distance traveled.

asked by Lelisa on April 20, 2019
84. ## biology/chemistry

Determine the net ATP production from one molecule of acetyl CoA through the citric acid cycle and taking the products through oxidative phosphorylation?

asked by meg on April 17, 2013
85. ## Chemistry

Thank you for being helpful in the check my interpretation of the three word problems below,and,let me know if I'm on the right track? Determine the mass of water vapor formed when 1.00g of Butane (C4H10)

asked by Cliff on November 3, 2010
86. ## physics

describe an expirement to determine the specific heat capacity of the metal . state the precaution that should be taken and show how the results in calculated from the measurement made?

asked by poppy👌🤔 on May 6, 2019
87. ## algebra

Determine the comparable interest rate for \$40,000 loan when the quoted information is 10.9%+0.5pt+\$300.(round your answer to two decimals places.)

asked by missfubu-c on November 5, 2012
88. ## History

Efficiency was a central theme of the reform movement. Who of the following was not an example of someone striving to examine every aspect of life itself and determine, often through new scientific principles, how to do more work with less energy?

asked by Stephanie on October 14, 2014
89. ## Chemistry

Determine the boiling point of a solution contanting 36.1grams calcium chloride molar mass 112 in 200.0grams water.

asked by Chris on March 7, 2013
90. ## Math

A rectangular courtyard is 57m and50cm long and 22m broad determine the least possible number of square stones of the same size required to pave it

asked by Hussain on August 9, 2016
91. ## MAth

Scores of an IQ test have a bell shaped distribution with a mean of 100 and a standard deviation of 19. Use the empirical rule to determine the following. a.) What % of people has an IQ score between 81 and 119?

asked by quita on July 17, 2012
92. ## science

If Mendel had only looked at a single cross that produced 10 offspring to determine the pattern of inheritance of seed shape in pea plants, what might he have inferred?

asked by cell123 on March 14, 2014
93. ## Chemstry

4NH3+5O2--->4NO+6H2O determine the amount of oxygen needed to produce 1.2x10^4mol of nitrogen monoxide gas

asked by Sven on September 20, 2011
94. ## Calculus

I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for

asked by Cris on September 17, 2011
95. ## Math - Algebraic Vectors

1) The vector v = [-6, -2] has tail "A" and head "B". Graph each point "A", and determine the coordinates of "B". a) A(8, 5) How would I find the coordinates of B for the question? Do you find it by adding the x values together and the y values together?

asked by Anonymous on February 11, 2008
96. ## Calculus

1. Determine whether Rolle's Theorem applied to the function f(x)=((x-6)(x+4))/(x+7)^2 on the closed interval[-4,6]. If Rolle's Theorem can be applied, find all numbers of c in the open interval (-4,6) such that f'(c)=0. 2. Determine whether the Mean Value

asked by Rudy on October 31, 2012
97. ## Math

1. Name a pair of complementary angles. (1 point) 1 and 4 1 and 6 3 and 4 4 and 5 2. If m1=37°, what is m4? (1 point) 53° 43° 37° 27° 3. If m1 = 40°, what is m5? (1 point) 50° 40° 35° 25° Use the figure to answer questions 4–5. Assume that

asked by YRN DJ on December 17, 2015
98. ## Chemistry (Check)

Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. Calcium nitrate is decomposed with heat to give calcium nitrite and oxygen gas. Start with 15.99g of

asked by Anonymous on November 2, 2015
99. ## Math

Hi, I need urgent help with these 3 integrals problems ... been stuck on the questions and the deadline is Friday. Thanks a lot ! 1) For the green's theorem, Q: Using Green's theorem, evaluate the line integral F(r).dr counterclockwise around the boundary

asked by Blur on April 5, 2007