# 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 244
1. ## Vectors

Two lines with the slopes m1=4/3 and m2=-7/2 intersect at (3,4). Determine the equations of the two lines and check your answer by solving them

asked by Sara on March 16, 2015
2. ## Trig

Determine the intervals of continuity of f(x)= ln(sin(x)) I looked at the graph and I have no idea how to state the intervals.

asked by Jet on November 16, 2014
3. ## Physics

A stone is dropped into a deep well and is heard to hit the water 2.95 s after being dropped. Determine the depth of the well.

asked by Eli on October 8, 2010
4. ## Data Management

Determine the total number of arrangements of three or four toys from a basket of 8 different toys. Show your calculations

asked by Person on February 27, 2018
5. ## PHI 103

If an argument does not commit a fallacy, it is A.necessarily valid. B.necessarily sound. C.Not enough information to determine D.Both A and B

asked by Nina on December 8, 2013

Given the function f(x)= x^3+8/x^2+-6, determine the eqaution of the asymptotes and state the end behaviours of the graph near the asymptotes.

asked by logan on December 5, 2011
7. ## Geometry

Determine if it is always sometimes never or always true - ray LJ and ray TJ are opposite rays -the intersection of two planes is a point

asked by Casey on September 12, 2011
8. ## math

translate to an equation F \$ 0.30 folders and N \$1.50 totals \$12 can you determine 3 different combination of folders and notebooks that total \$12

asked by brian on December 6, 2011
9. ## Chemistry- Dr.Bob222

Determine [H30+], [OH-], and pH. A solution that is 0.655% HNO3 by mass (assume a density of 1.01 g/ mL for the solution).

asked by Nevaeh on April 20, 2016
10. ## CALCULUS

Determine the derivative of the function: Y=1 / (Sq.root of (3x-1) I know the answer is -3 / (2(Sq.root of 3x-1)^3 I just need some aid on the steps. Thanks in advance.

asked by Anonymous on June 15, 2010
11. ## Physics

Spark timer acceleration lab How do you determine the acceleration from the slope of your best fit line?

asked by Kiki on October 17, 2014
12. ## math

Determine whether the fractions in each of the following pairs are equal: a: a^2/b and a^2b/b^2 b: 377/400 and 378/401 c: 0/10 and 0/-10 d: a/b and a+1/b+1, where "a" is not equal to "b" or a =/= b

asked by Anna on October 14, 2014
13. ## Math

In the questions below P(x,y) means “x and y are real numbers such that x + 2y = 5”. a) Determine whether the statement ∃x∀yP(x,y) is true. b) Negate the statement ∃x∀yP(x,y).

asked by Nick on March 3, 2016
14. ## Algebra

use factor theorem to determine whether x+2 is a factor of f(x). if it is, write f(x) in factored form. f(x)=9x^3+24x^2+19x+14; x+2

asked by Stone on November 12, 2013
15. ## physics

A helicopter flies 65km [N32°E] then 42km[E 21°] determine the total displacement of the helicopter.

asked by Nicholas on November 18, 2017
16. ## math/algebra

Determine three consecutive odd integers such that three times the middle integer is seven more than the sum of the first and third integers.

asked by sally on February 6, 2015
17. ## Math - point on the graph

Determine the coordinates of the point on the graph of f(x)=sqrt(2x+1) where the tangent line is perpendicular to the line 3x+y+4=0

asked by Anonymous on October 21, 2010
18. ## algebra

Determine the number and type of roots for each equation. thanks inadvance can u please show mw step by step thanks 2X(X+2)=-2

asked by john on October 7, 2013
19. ## earth

Determine the gravitational force that you exert on another person 1.90 m away. Assume that you and the other person are point masses of 75.0 kg each.

asked by Anonymous on December 19, 2011
20. ## Math

determine vertex, focus and directrix of parabola. then graph the parabola. second equation: y^2 -4y -12x= 8

asked by doug on May 18, 2008
21. ## chemistry

Balance the equation NH3 + O2 −→ N2 + H2O Given 4.55 mol of the reactant NH3, determine the corresponding amount of O2.

asked by Matt on December 19, 2011
22. ## Math

Determine if it is always sometimes never or always true - ray LJ and ray TJ are opposite rays -the intersection of two planes is a point

asked by Casey on September 12, 2011
23. ## Chemistry

Determine the fluoride ion concentration for a saturated solution of magnesium fluoride. (Ksp = 7.4E-11)

asked by Anonymous on October 30, 2017
24. ## chemistry

determine the concentration of the salt water Express the concentration in both molarity in grams per liter

asked by Elihu on April 15, 2013
25. ## Science

A compound on analysis as 87:8% c,12:2%h determine its empirical formular&molecular formular given mass=56gmol

asked by Samuel on January 25, 2016
26. ## Physics

A ball is battled straight up and returns to the level of the batter after 6.5s determine how high the ball went

asked by Alex on October 18, 2017
27. ## Calculus

Determine whether the sequence with the given nth term is monotonic. Find the boundedness of the sequence. Otherwise, indicate DNE. An = ne^(-n/2)

asked by Jenny on February 11, 2013

To determine the atomic mass of an element, you would take a _________ average of the isotopes that make up that element

asked by Abby on October 28, 2014
29. ## Math

Use the discriminant to determine how many real-number solutions the equation has. Problem 1 w2 - 2w + 2 = 0 A) 2 B) 1 C) 0 Problem 2 1 - 7a2 = -7a - 2 A) 2 B) 1 C) 0

asked by Sharee on August 5, 2010

n n "Suppose ∑ i = 21. and. ∑ i^3 = 441" i=1 i=1 i) Evaluate n Sn = ∑ [4i + (1/3) i^3)] i=1 ii) Determine the value of n." I got n = 6 / n = -7 using the "(n^2(n-1)^2)" formula but I'm not sure if it's right/how to do the first part. I'm very unsure

asked by Jaime on November 5, 2018
31. ## Chemistry

A compound on analysis as 87:8% c,12:2%h determine its empirical formular&molecular formular given mass=56gmol

asked by Samuel on January 25, 2016
32. ## Math 10 x-intersept y-intersept

Please help me with this question Q:For each line,determine the x-intersept,the y-intersept,and the slope a) 2x-5y+10=0 b)4x+y-12=0 please explain carefully , I'm dumb... thank you

asked by Rach on March 29, 2009
33. ## Vectors

Determine two other (non-trivial) points on the line that passes through P(5, 6, -2) and is parallel to the line with equation Vector r = (2,-3,4) + t(1,1, -3), t∈R.

asked by Jim on October 21, 2018
34. ## math

if f(x)is greater or equal to 10x–42 but less than or equal to x2+2x–26 determine limx4f(x) = What theorem did you use to arrive at your answer?

asked by Jin on August 11, 2010
35. ## math

if f(x)is greater or equal to 10x–42 but less than or equal to x2+2x–26 determine limx4f(x) = What theorem did you use to arrive at your answer?

asked by Jin on August 11, 2010
36. ## math

Determine if there exists a real number that is exactly one less than its cube. If so, find the value of the number. (Hint: IVT)

asked by kate on September 30, 2008
37. ## Statistics

how can I determine weather to reject or fail to reject the following nul hypothosis: let a= o.01, data: s= 3.1, n=55 and H(0) st dev 2.8 and H(1)< 2.8

asked by Carl on April 19, 2013
38. ## Chemistry

Determine the volume of a 67.5g piece of aluminum with density of 2.70 g/mL? -I know V=M/p and this is what I came up with but I'm not sure i'm correct.. p = 2.7 g/cm3 M = 67.5 g V = 25 cm3 3√ V = 2.9240177382129 cm

asked by Rae on October 18, 2016
39. ## Math

If numbers 1-10 are put in a bowl determine the probability that if two are selected they would 1. both be even,2. both would be less than 5 and 3. the first number is odd and the second number is even.

asked by Mary LouBrown on July 13, 2010
40. ## Chem-Extraction Lab

Why is dichloromethane not a good choice for re-crystallization of the caffeine? How could you determine that the product you had obtained was caffeine? Thanks!

asked by Nano on September 16, 2014
41. ## Maths Parabola

if a parabola is defined by f(x)=ax+bx+c,where a straight line is defined by g(x)=-1/2x.then Df=R,Rf=(-2,infinity) and b/2a=2 determine a,b and c and write down the equation of f.

asked by Joel on June 6, 2011
42. ## Calculus

f(x)= ⎨x^2-1 / x+1, for x not = -1 ⎨8, for x=-1 I'm trying to graph and determine the values of x for which the function is continuous. Does the graph looks like a u shape opening up or a line.

asked by tony on September 24, 2013
43. ## Trigonometry

Determine all the values of theta,0 degrees < or = theta < 360 satisfying csc(x)0

asked by Manuel on November 14, 2016
44. ## science

leila walks south for 20m and then west for 20m,determine resultant displacement

asked by majezi on January 20, 2013
45. ## statistics

A standard IQ test has a mean of 98 and a standard deviation of 16. We want to be 90% certain that we are within 8 IQ points of the true mean. Determine the sample size.

asked by kat on December 8, 2011
46. ## math

The sequence x_1, x_2, x_3, . . ., has the property that x_n = x_{n - 1} + x_{n - 2} for all n>=3. If x_{11} - x_1 = 99, then determine x_6.

asked by Speedo on September 19, 2013
47. ## math

Consider the region bounded by the curves y=5 and y=5 and y = x +4/x. set up the integral that would be used to determine the volume if the region was revolved about x = -1

asked by diego on May 6, 2013
48. ## chemistry

determine the specific heat of a material if a 35.0 g sample absorbed 48.0 J as it was heated from 20 Celsius to 40 Celsius.

asked by Courtney on September 27, 2010
49. ## MATH

Joelle set up the following proportion to solve for x. Determine if her proportion is correct. If not, explain what is wrong with it.

asked by sexycat211 on March 24, 2015
50. ## geometry

In triangle ABC, BC=40m , AB=50m and Angle A=53 degree. Determine the area of a triangle.

asked by ken on June 9, 2010
51. ## trig

The parametric equations for a curve in the x-y plane are x=2+t^2 and y=4-3t. Determine the points where the curve intersects the x-axis.

asked by casey on April 19, 2011
52. ## Physics

A tyre is running around a circle with a radius of 5 m and 12 m/s2 of centripetal acceleration. Determine the speed of the tyre

asked by Prajwal on August 11, 2011
53. ## Algebra II

Determine whether the grapg of the given equation is symmetric with respect to the x-axis, y-axis, and/or the orgin. f(x)=3x²+1 x²+y²=81

asked by N/A on July 4, 2011
54. ## Microbiology

Molecular chronometers are used to determine the course of evolution. Explain in full what these are and how they are used. Why, even with this "tool", is evolution still so complex?

asked by Leah on April 13, 2008
55. ## AE

determine what the teacher's role is, the parent's role, doctor's, student's, etc of a special needs students

asked by scooby91320002 on August 23, 2008
56. ## Chemistry

A 10.3g sample of an elemental gas has a volume of 58.4L at 758torr when the temperature is 2.5 C. Determine the identity of the gas.

asked by Sam on February 21, 2016

A chunk of oak firewood has a mass of about 2.85 kg and has a volume of 4100 cm^3. Determine the density of oak in g/cm^3.

asked by Barb on February 17, 2013
58. ## physics

The electric potential in a certain region is V = a x2 + b x + c, where a = 14 V/m2, b = −19 V/m, and c = 61 V. Determine the position where the electric field is zero. Answer in units of m Please help!

asked by Kennedy on July 9, 2013
59. ## Calculus

with the equation q=-p^2+33p+9 (18 less than or equal to p less than or equal to 28) how do you determine the price to obtain the largest revenue?

asked by Anybody here?? on November 25, 2007
60. ## Science

Determine the direction of the net force on a book sliding on a table if the book is slowing down.

asked by Jennifer on March 24, 2008
61. ## Physics

A charge of 3.93 is placed at each corner of a square 0.470 on a side. Determine the magnitude of the force on each charge.

asked by Elmer on February 15, 2013
62. ## Chemistry

Determine the mass of zinc sulphide,ZnS which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted.

asked by Dan on October 17, 2010
63. ## calc

How I can to determine the domain and the maximum and minimum local of the following function: f(x)=6sec((pi*x)/8). And I need to graph the function.

asked by Jhonny on September 14, 2011
64. ## Chemistry

Determine the variation of the buffer of the problem 1, if 200 mL of the buffer is added 10 mL of a 1.0 M solution of HCl.

asked by Melanie on December 13, 2016
65. ## Algebra 2

Are the functions f and g inverse functions if f(x)=5/3x+1 and g(x)=3(x-1)/5? I need all of the steps on how to determine this. I need this ASAP because this assignment is due tomorrow. Thanks

asked by Brandon on May 25, 2011
66. ## chem

determine how many grams of N2 are produced from the reaction of 8.75 g of H2O2 and 5.43 g of N2H4. 2H2O2+N2H4 4H2O+N2 g N2?

asked by Rachel on February 19, 2018
67. ## math for laboratory science

Determine the quantity of stock 75.0% v/v EtOH required to prepare 300ml of a 25.0% v/v EtOH solution

asked by mikela on May 12, 2013
68. ## trig

To the nearest degree, determine the measure of angle X for each value of tan X a. tan X = 0.49 Just not sure how to solve these questions

asked by David on October 12, 2011
69. ## college physics

FM radio waves have frequencies between 80.3 and 108 MHz. Determine the range of wavelengths for these waves.

asked by help on March 23, 2018
70. ## Chemistry

List a series of test that would determine the order of activity (least active to most active) for the following metals: Zn, Mn, and Ag.

asked by Sam on October 22, 2013
71. ## Science

How do external factors (such as stirring or shaking) determine whether a mixture will become a mechanical mixture or a solution?

asked by Bill on February 27, 2018
72. ## Physics

A charge of 3.93 is placed at each corner of a square 0.470 on a side. Determine the magnitude of the force on each charge.

asked by Elmer on February 15, 2013
73. ## Geometry: Student Correction (Stuck)

Joelle set up the following proportion: 4/6 = 5/x. Solve for x. Determine if proportion is correct. If not, explain what is wrong with it.

asked by Lydia on March 29, 2013
74. ## math

Determine the values of k for which the function f(x)=4x^2-3x+2kx+1 has two zeros. Check these values in the orginal equation.

asked by ashvini on October 25, 2011
75. ## physics

A particle travels along a straight line with a speed = (0.50 -7 ), where is in seconds. Determine the acceleration of the particle when = 2 .

asked by Angie on September 19, 2011
76. ## Math

Determine the number of different six letter arrangements that can be formed with the letters GUIDEPOST if the last two letters must be vowels?

asked by Louis on March 2, 2018

Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =

asked by mark on May 20, 2013
78. ## Chemistry

Determine the Concentration of OH^-1 and pH of a solution that is 0.140 M F^-1. I did F- +H20 ---> HF + H20 but idk what to solve from there....

asked by ALISON on February 28, 2012
79. ## Algebra

Can you please explain this problem to me? Determine whether 30 is a solution of the equation x-13=14. Is 30 a solution? My answer is no. x-13=14 30-13=14 No, not true. Thanks.

asked by B.B. on February 22, 2010
80. ## Geometry

a parallelogram has the vertices (0,3), (3,0), (o,-3), and (-3,0). determine what type of parallelogram and find the perimeter and area

asked by stephen on December 7, 2011
81. ## chemistry

80.0 g of iodine (v) oxide reacts with 28.0 g of carbon monoxide determine the mass of iodine

asked by Anonymous on April 12, 2010
82. ## Intermediate Algebra

If the discriminant of a quadratic equation has the given value, determine the number and type of solutions of the equation. A.48 B.0

asked by Ralph on April 21, 2012
83. ## Algebra1

Determine 3rd term in the geometric sequence whose first term is -8 and whose common ratio is 6

asked by Monique on February 27, 2017
84. ## math

Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =

asked by mark on May 19, 2013
85. ## Phyisics

A 256 kg stone has an acceleration of 90.7 m/s2. Determine the net force acting on the stone.

asked by Mary Ann House on February 25, 2011
86. ## calculus

determine the open intervals on which f(x) is increasing, decreasing, concave up and concave down. f(x)= tanx, -pi/2< x< pi/2

asked by sara on October 28, 2007
87. ## calculus

Determine the coordinates of the point on the graph of f(x)= (2x+1)^(1/2) where the tangent line is perpendicular to the line 3x+y+4=0

asked by Anonymous on February 28, 2013
88. ## Maths

Determine the number of 5 card combination out of deck of 52 cards if there is exactly one ace in each combination.

asked by Gash on January 11, 2019
89. ## Physics

A car that slows down uniformly from 20 m/s to 5 m/s has an impulse of 30,000 kg m/s. Determine the mass of the car

asked by Jut on March 6, 2015
90. ## calculus

Determine whether the integral is convergent or divergent.If it is convergent, evaluate it. form -infinity to 0 x/(x^4+25)dx

asked by alex on April 6, 2017
91. ## chemistry

determine how many grams of N2 are produced by 9.12 g of H2O2 and 6.90 g of N2H4. 2H2O2+N2H4= 4H2O+N2

asked by lee on April 1, 2013
92. ## Math

Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =

asked by mark on May 19, 2013
93. ## Please check my Algebra

Determine the maximum possible number of turning points for the graph of the function. f(x) = 8x^3 - 3x^2 + -8x - 22 -I got 2 f(x) = x^7 + 3x^8 -I got 7 g(x) = - x + 2 I got 0 How do I graph f(x) = 4x - x^3 - x^5?

asked by Em on October 23, 2007
94. ## Mechanical Engineering Sci.

Use the parallelogram of forces method to determine the magnitude and direction of the resultant of the forces given:1.7N at 45 and 2.4N at -60.

asked by Godknows on March 15, 2011
95. ## math

determine the exact value of (cot pi/3) + (csc pi/3) / (cos pi/4). how is this calculated? i mean the steps to get the exact value?

asked by carli on April 7, 2014
96. ## Physics

How to determine the work done on the object with a FCosTheta(Y axis)-Displacement(X axis) graph.

asked by Jennifer on February 23, 2015
97. ## Empirical Probability

Explain how empirical probability can be used to determine whether a die is “loaded” (not a fair die).

asked by Melanie on May 30, 2011
98. ## chemistry

need help figure out how to do these problem: 1)Calculate the pH of this solution: 1.55 X 10^-2 M HBr 2)Determine the pH of this solution: pOH = 8.3 thanks

asked by amy on November 30, 2010
99. ## physics

The pendulum on a cuckoo clock is 5.00 cm long. (a) Determine the period of this pendulum. (b) What is its frequency?

asked by Jason on November 20, 2012
100. ## Calculus

Determine convergence of divergence. If convergent, find the sum. Sum (infinity, n = 0) (e/pi)^n