# 1)Find the sixth term of the geometric sequence for which a1=5 and r=3 A)1215 B)3645 C)9375 D)23 I chose A 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3... A)aN=-12(1/3)n-1 B)aN=12(-1/3)n-1 C)aN=-12(-1/3)-n+1 D)aN=-12(-1/3)n-1 I chose C 3)Find

92,916 questions, page 496
1. ## Chemistry

Iron crystallizes in a body–centered cubic structure. The volume of one Fe atom is 9.38 x 10–24 cm3, and the density of Fe is 7.874 g/cm3. Find an approximate value for Avogadro’s number.

asked by Ian Palen on December 8, 2012
2. ## math

In a problem on percentages there are three quantities that are involved. These are the base, the amount, and the rate percent. Express the relation between them in the form of an equation and explain with examples how to find each one of them given the

asked by cecelia on October 19, 2012
3. ## Algebra

I have no clue how to do this (uniform motion 1)2 bycicles start from the same point and ride in opposite directions. 1 rider is moving twice as fast as the other. In 3h, they are 72mi apart. Find the rate of each rider

asked by Chris on September 23, 2008
4. ## geometry

the net of a square pyramid has a base of 3cm by 3cm and each slant side is 5cm. Include the flaps. Find the total surface area of the prism.

asked by jodi on April 24, 2012

A 3.00-kHz tone is being produced by a speaker with a diameter of 0.185 m. The air temperature changes from 0 to 29° C. Assuming air to be an ideal gas, find the change in the diffraction angle θ.

asked by Lucy on December 6, 2012
6. ## math

For a normal distribution with mean of 80 and a standard deviation of 8, find the number of standard deviations the raw score 67 is from the mean (Give answer as a positive value rounded to nearest hundredth).

asked by Sam on July 19, 2017
7. ## physics

A bicycle is supported so that in front wheel does not touch the road.The wheels diameteris 0.65 m.The wheel is spun as a rotation rate of 9.3 revolution per second.Find the speed of a point on the outside

asked by Anonymous on November 23, 2011
8. ## physic

A dog sled weighing 750 lb is pulled over level snow at a uniform speed by a dog team exerting a force of 60 lb. Find the coefficient of friction.

asked by Jennifer on August 16, 2012
9. ## Satatstics

Assume that a random sample is used to estimate a population proportion p. find the margin of errror E that corresponds to the given statistics and confidence level n= 550, x=165, 90%confidence

asked by Heather on November 16, 2007
10. ## Physics

A compact car, with mass 725kg, is moving at 115km/h toward the east.....find the magnitude and direction of it's momentum. Draw an arrow on your sketch showing the momentum

asked by Desmond on January 28, 2015
11. ## math

This math is killing me! How do I find the area of a flower bed in square feet if it is triangular in shape and the base is 3 yards and the height is 2 yards? Please help, I am feeling overwhelmed.

asked by Island Grandma on May 17, 2015
12. ## Math

A car is stopped at a red light, and starts moving at time t = 0 when the light turns green, with an acceleration given by a(t) = √t, with t given in seconds, and distances given in metres. a. Find a Formul

asked by Mr Homie on June 6, 2016
13. ## MATH

Two number cubes are rolled—one red and one black. Explain why the events “the red cube shows a 6” and “the sum is greater than or equal to 10” are dependent, and find the probability.

asked by Maitha on November 25, 2011
14. ## math

In a problem on percentages there are three quantities that are involved. These are the base, the amount, and the rate percent. Express the relation between them in the form of an equation and explain with examples how to find each one of them given the

asked by cecelia on October 19, 2012
15. ## Calculus

Given vectors u= (1,-1,3) and v= (-4,5,3) find an ordered triple that represents vectors 3u-2v. a.(16,1,-7) b.(11,-13,3) c.(10,-12,1) d.(7,-7,16) I don't want you to straight up give me the answer. I need someone to teach me how to solve this problem. I am

asked by alana on August 23, 2012
16. ## Calculus

One side of a rectangular animal pen is to be formed by the side of a barn. If you have enough material to build a total of 34 feet of fence, find the maximum area than can be enclosed

asked by Bella on June 17, 2015
17. ## Physics

A very strong 100kg man is having a tug-of-war with a 1500kg elephant. The coefficient of static friction for both on the ground is 0.9. Find the force that would be needed to move the elephant.

asked by RJ on October 16, 2012
18. ## pre calc

I have a few problems from my homework that I am having trouble with. #1 Find the difference quotient of f foreach function f(x)=1/(x+3) I got -2x+6 #2 Express the area of an isosceles right triangle as a function of the length x of one of the two eual

asked by Rebekah on August 30, 2012
19. ## Physics

A falling toy, mass 10.0 kg experiences an upward force due to air friction of 40.0 N. Find the acceleration of the toy. I honestly have no idea how to solve this question. Could someone please help me? :(

asked by Austin on June 19, 2015
20. ## Algebra

please help me solve my homework with all the work involved. i have trouble paying attention in class so it's hard for me to do my homework. here are a few of the questions. I need to find out what the letters equal. 1.) 10(-4+y)=2y 2.)9(b-4)-7b=5(3b-2)

asked by Kelly on August 30, 2012
21. ## Geometry

Find the area of a segment of a circle, in which the radius of the circle it is in, is 6cm, and the central angle measures 120 degrees. Round your answer to the nearest tenth.

asked by Anonymous on May 20, 2012
22. ## cjs 200

I am suppose to provide statistice for crime and population in at least 2 prisons in my area. I have tried the missouri department of corrections website and various search phrases and cannot find anything. any suggestions on phrases? thank you

asked by sutton on February 7, 2011
23. ## Algebra

I am supposed to find how long it takes for an investment to double at an annual interest rate of 8.5%, compounded continuously. I know that e is supposed to turn into ln when you try to divide by t (or at least, I think), but how do you do this? Could

asked by Aurelia on December 2, 2008
24. ## College Elementary Algebra

June rowed 45 upstream. The next day she rowed the same distance Downstream taking her 4hrs less. If she can row 7mph in still water, find the speed of the current river.

asked by WhenSheSmiles on October 23, 2017
25. ## chemistry

Two liquids of different densities (ρ1 = 1500 kg/m3, ρ2 = 500 kg/m3) are poured together into a 100 L tank, filling it. If the resulting density of the mixture is 800 kg/m3, find the respective masses of the liquids used.

asked by nick on August 29, 2012
26. ## physics

A circular disk of 10cm radius is charged uniformly with a total charge of Q. Find the electric field intensity at a point 20cm away from the disk along its axis

asked by Anonymous on November 14, 2015
27. ## math

A motor pulley 8 inches in diameter and runs at 450 revolutions per minute.Find the diameter of the fan if the RPM's is 1,400? Round to the nearest hundredth.

asked by kevin on June 8, 2015
28. ## statistics

Suppose that weights of 5th grade elementary boys are normally distributed with mean µ =90 lbs and variance ó2 = 4 lbs. Find the weight that corresponds to Q3 and interpret this measure of position.

asked by Kristie on November 28, 2011
29. ## Physics

A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5.0 m, B= 15 m, and C = 18 m. Using the component method, find the magnitude and direction è of the resultant

asked by Nat on September 7, 2016
30. ## trig

In a circle of radius 12 inches, a sector is formed by a central angle of pie/4 radians. Find the area of the sector to the nearest hundredth of a square inch.

asked by Lisa on March 28, 2011
31. ## Physics

How do you find the ratio of the new/ old world periods of a pendulum if the pendulum wee transported from earth to the moon, where the acceleration due to gravity is 1.63m/s^2? Im not sure if we use 9.8 at all, I think I'm supposed to use T=2 pi sqrtL/g.

asked by cris on December 10, 2012
32. ## calculus

Find the absolute extrema of the function (if any exist) on each interval. (If an answer does not exist, enter DNE.) f(x) = square root of (25 − x^2) (a) [−5, 5] minimum (x, y) = (smaller x-value) (x, y) = (larger x-value) maximum (x, y) =

asked by Sam on April 5, 2016
33. ## math

The angle of an elevation of the top of a radio mart from a point 53meter from its base on ground level is 61degrees ,find the height of the mart to the nearest whole number.

asked by Amanda on January 7, 2017
34. ## math

The terminal side of an angle theta in standard position coincides with the line 2x – y = 0 in Quadrant III. Find cos theta to the nearest ten-thousandth.

asked by james on November 23, 2011
35. ## algebra

A motel clerk counts his \$1 and \$10 bills at the end of the day. He finds that hes has total of 64 bills having combined monetary value of \$217. Find the number of each denomination that he has.

asked by Christina on August 14, 2012
36. ## maths-urgent

Rudransh has a piece of cardboard in shape of a quadrilateral. He cuts it into two triangles such that angles formed at the vertices are bisected. He wants to find out whether the two triangles are congruent or not without actually super positioning them

asked by Anonymous on January 10, 2013
37. ## Math

The distance around the Earth at the equator is about 40074 kilometers find the equatorial diameter of Earth to the nearest kilometer A.12,762 Km B.25,512 Km C.62,884 km D 6,339,700 Km

asked by Applesuace Master on April 19, 2016
38. ## Physics

Find the energy (in joules) of the photon that is emitted when the electron in a hydrogen atom undergoes a transition from the n=7 energy level to produce a line in the Paschen series.

asked by Jenny on September 11, 2008
39. ## chemistry

how do I write this equatio out and is it stoichiometry problem. Find the mass of sodium hydroxide needed to neutralize enough nitric acid to create 2.0 gram of sodium nitrate?

asked by Tosha on November 30, 2010
40. ## Precalculus

Let C be a circle that passes through the origin. Show that we can find real numbers s and t such that C is the graph of r = 2s*cos(theta + t) I think that I could start by writing it like R^2=(x-h)^2+(y-k)^2 where R is the radius of the circle, but I

asked by Katie on April 18, 2016
41. ## Calculus

An open top box with a square base is to have a volume of exactly 500 cubic inches. Find the dimensions of the box that can be made with the smallest amount of materials.

asked by Anom on October 31, 2012
42. ## Physics

A plane designed for vertical takeoff has a mass of 6.4 ✕ 103 kg. Find the net work done by all forces on the plane as it accelerates upward at 8.4 m/s2 through a distance of 30.0 m after starting from rest.

asked by Ben on November 20, 2014
43. ## Physics

An air craft is traveling due north with avelocity of 100 m/s, astrong wind blows from the west with avelocity of 25m/s find resultant velocity

asked by Wende on March 30, 2017
44. ## physics

a boy runs 100m along the east,then he turns to his left side at right angle and runs for 50m along the north direction.find the distance and the magnitude of the displacement .

asked by bamba on July 2, 2017
45. ## MATH

Find the value of single perpetuity payment if the present value of the perpetuity payments at t=0 years is AED 500,000 and the interest rate is R% compound per year.[Choose R% from 8% to 12%]

asked by ESLAM on December 18, 2016
46. ## Calculus: Centers of Mass

Find the centroid of the region in the first quadrant bounded by the x-axis, the parabola y^2 = 2x, and the line x + y = 4. I've graphed the function, and it looks like a triangle with one side curved (the parabola). I'm not quite sure how to go about the

asked by Anonymous on November 17, 2016
47. ## Genetics

1. What is the difference in composition between the prokaryotic (E. coli) core polymerase and holoenzyme? How does the E. coli RNA polymerases find the correct place to start transcription from a gene

asked by Lex on November 13, 2017
48. ## art appreciation

I have to do this essay and I can't find anything on this topic. I don't know if I'm looking in the wrong places or what but I would like some help if you can. This is the topic that I have to write on please help. How does symbolism expand the meaning of

asked by casandra on January 15, 2012
49. ## geometry

I have a triangle ADB. AD = 2, AB = 3 DB is x. I need to find x. Additional info. AB/BC = BD/BD = AD/BD. Other triangle is DCB. DB is x, DC is 8, CB is y. Booth of triangles are connect by DB. Figure resembles a kite. (Needed to complete 3/y =x/x= 2/x. Is

asked by robin on April 20, 2015
50. ## Psychology

When a patient opens up to a therapist they sometimes become attached and dependent on their therapist. I tried to find information on Woody Allen Syndrome but nothing is coming up. Is this common and how can therapists try to prevent this situation?

asked by Christian on May 13, 2008
51. ## chem

I am not sure how to even set this question up. I need to find out how many moles of C2 gas is contained in a 2.0L container that has a pressure of 125 atmoshpers and a temp of 10 C. I have P1-125 Atom V1-2.0L T1-10 C + 273 = 283K N1 ? I'm not sure where

asked by Tank on July 27, 2012
52. ## hinkley

Sam Sounds received a \$290 discount loan to purchase a stereo. The loan was offered at 16% for 90 days. Find the interest in dollars and the proceeds for the following problem.

asked by carla on April 21, 2015
53. ## english

anyone know some controversial issues in the news papers lately?if so, please tell me.i really need it.=) thanks! Go to http://news.google.com Read through the stories. Find one that interests you. It might be a local, national, or international story.

asked by Twinkle on April 29, 2007
54. ## Polar, Cylindrical, and Spherical Coordinates

Let C be a circle that passes through the origin. Show that we can find real numbers s and t such that C is the graph of r = 2s*cos(theta + t) I think that I could start by writing it like R^2=(x-h)^2+(y-k)^2 where R is the radius of the circle, but I

asked by Katie on April 19, 2016
55. ## Physics(urgent)

A stream of water from the nozzle of a fire hoZe emerges horizontally with a speed 16m/s. the nozzle is 20m above the ground, find the time ot hits the groun

asked by Aika on January 11, 2012
56. ## Algebra

Please help me to solve this Radical Expressions and equations word problem. Here is the question: Find the perimeter and the area of the rectangle. Here are the measurements: length is (sqrt 6+2) and the width is (sqrt 6-2)

asked by Jay on November 22, 2014
57. ## Physics

I failure to find an observation related to motion in two dimension projectile motion. Prove That/Show that maximum range =4Height or Rmax=4H please help me thanks Ahsan Khan

asked by Muhammad Ahsan Khan on January 1, 2009
58. ## Physics

Sam tosses a ball horizontally off a footbridge at 4.3 m/s. How much time passes after he releases it until its speed doubles? Can someone please explain the correct equation to use thoroughly and help me to find the correct answer?!

asked by Megan on May 25, 2012
59. ## physics college

A dog sled is pulled at an angle of 30 degrees with the horizon using a tension of 450N. If the sled has a mass of 50kg, then find the recoil, forward force and acceleration (if any).

asked by Gee on October 24, 2012
60. ## Pre-Calc.

The two equal sides of an isosceles triangle are each 24 centimeters. If each of the two equal angles measures 60, find the length of the base and the altitude. (leave your answer in radical form).

asked by anonymous on November 27, 2014
61. ## Math

The two equal sides of an isosceles triangle are each 24 centimeters. If each of the two equal angles measures 60, find the length of the base and the altitude. (leave your answer in radical form).

asked by anonymous on November 27, 2014
62. ## physics

. A 1030-kg car going 3.4 m/s through a parking lot hits and sticks to the bumper of a stationary 1140-kg car. Find the speed of the joined cars immediately after the collision.

asked by derrelk on May 12, 2015
63. ## Algebra

find the unit rate for number of parts manufactured per hour if 1630 parts are made in 6 hours. round to the nearest integer. SHOW ALL WORK.

asked by Amber on November 28, 2010
64. ## 7th grade math

16. Find the final balance in an account with \$730 invested at 3% annual simple interest for 4 years. (1 point) \$735.48 \$87.60 \$817.60 \$8,760.00 is the answer 817.60

asked by Delilah on December 5, 2012
65. ## Probability

three fair dice are tossed. Let X,Y,Z denote the respetive numbers showing on their top faces. Assume X,Y,Z are independent. a) find P(X

asked by Danny on November 18, 2007
66. ## Math

A semi circle sits on top of a rectangle to form the figure below find its area and perimeter use 3.4 for pie on the side 4 inches and on the bottom 6 inches what is the answer

asked by Jamie on November 6, 2017
67. ## Physics(urgent)

A stream of water from the nozzle of a fire hoZe emerges horizontally with a speed 16m/s. the nozzle is 20m above the ground, find the time ot hits the groun

asked by Aika on January 11, 2012
68. ## Chemistry - Final Temperature

An unknown mass of each of the following substances, initially at 23.0C, absorbs 1910 J of heat. The final temperature is recorded as indicated. Find the mass of each substance. sand (Tf=62.0C) ethanol (Tf=44.1C) water (Tf=32.1C)

asked by Amy on October 28, 2012
69. ## chemistry

Suppose you add 2.0 mL of 0.10 M HCl to 100 ml of buffer having 0.10 M HA and 0.20 M NaA. a. Which species will react strongly with one another? I believe the answer is Cl- and Na+ to form NaCl. b. What will be the change in pH? pKa = 4.82 I am not sure

asked by Cortney on May 6, 2015
70. ## ethics in technology

discuss the legal protections related to copyright, trade secracy, and patents. Include an example where legal protection has been enforced... where can i go to find more information to answer this question!!

asked by breeamberr on February 4, 2015
71. ## Biology

What is one of the outputs or products of respiration? It has to be a four letter word with the second letter being e because it is the hint that my teacher gave us. I couldn't find anything on it. So far I have disocovered is carbon dioxide, water, and

asked by David on March 21, 2017
72. ## Finance

A company issues a 6-year bond with a face value of 5,000 and semi-annual coupons payments of \$275. If the yield rate is 7%, find the price of the bond.

asked by Kim on November 28, 2010
73. ## physics

a crate weighing 562 newtons is resting on an inclined plane 30 degress above the horizontal. Find the components of the weight forces that are parallel and perpendicular to the plane?

asked by amirah on January 10, 2012
74. ## math

alison invests £400 in an account paying compound interest 4% per annum.find the interest earned over 5 years,round your answer to 3 significant figures.

asked by rahel on October 25, 2012
75. ## math

Hello Jiskha-hope you can help me here! A straight road to the top of a hill is 2500 feet long and makes an angle of 12 degrees with the horizontal. Find the height of the hill?

asked by lola on January 16, 2012
76. ## Chemistry

How would I find the pH of these? I found it for d and e, but I don't know how to do the rest a) 0.25M carbonic acid b) 0.075M CN- c) 0.15M F- d) 0.015M HCl (I got 1.8) e) 0.015 M NaOH (I got 12) f) 0.050 M acetic acid

asked by Sara on June 25, 2015
77. ## physics

cheetahs, the fastest of the great cats, can reach 45 mph in 2.0 s starting from rest. assuming that they have constant acceleration of 33 ft/s throughout that time, find the distance (in ft) they travel during that time.

asked by Anonymous on September 28, 2017
78. ## 8th Grade Pre-Algebra

Find the value of the following expression: (2^8 ⋅ 5−5 ⋅ 19^0)−2 ⋅ (5-2/2^3)^4 ⋅ 2^28 (5 points) Write your answer in simplified form. Show all of your steps. (5 points) Please somebody help me I'm so confused. I know I'm supposed to use PEMDAS

asked by Music Lover 14 on October 26, 2016
79. ## Information technology

Write an algorithm,flowchart,pseudo cod and finally a c++ code that will accept exam score for five users and find the average,minimum and maximum of the score

asked by Mawuyram on February 12, 2017
80. ## Pre-Calc

A slice 1 unit thickness is removed from one see of a cube. Use the rational zeroes theorem and synthetic division to find the original dimensions of the cube, if the remaining volume is 48 cm^3 v= x^3 v=x*x*x x=(x-1)*x*x 48=(x-1)*x*x

asked by Dee on March 17, 2016
81. ## Maths

The rain water from a roof top of 44m*20m drain into a cylindrical tank having diameter of base 4m and height 3.5m if the tank is just full.find the rainfall in cm?

asked by Lidiya on March 16, 2016
82. ## Chemistry

Consider a mole of gas obeying the equation of state P⋅V = n⋅R⋅T + n⋅B(T)⋅P. Find w, q, ΔU, ΔS, ΔH, ΔA, and ΔG for a reversible isothermal expansion of this gas. Express your answers in terms of initial and final pressures, T, B, and

asked by Joesph on October 27, 2016
83. ## physics

A sign with a mass of (24) kg is hanging in two wires both making an angle of (52) degrees with the vertical. Find the tension in one of the wires. Give your answer in newtons (N) and with 3 significant figures.

asked by dalia on February 9, 2017
84. ## maths

1.Without using Pythagorus theorm, prove that the points (-4,-3), (-2,2),(8,-2)are the vertices of a right angled triangle. 2. The 3 vertices of a parallelogram taken in order are (3,4),(-2,3), (-3,-2).Find the coordinates of the fourth vertex ? can u pl

asked by kumar on January 28, 2017
85. ## algebra

Use the given information about a polynomial whose coefficients are real numbers to find the remaining zeros. degree: 6 Zeros: -8 + 11x(can't put this sign in looks like ii with slash over)i, -7 + 17i, 16 - isqrt 2

asked by Alissa on December 9, 2011
86. ## PHYSICS help!!!!!!

A light fixture of mass 10.4 kg is suspended in the corner of a room by a combination of three wires, as shown in the diagram (below, left). If angle θ = 35.0 degrees, find the tension in each of the three wires.

asked by neeba on September 30, 2012
87. ## physics

the weight of the block on the table is 402 N and that of the hanging block is 210 N. Ignore all frictional effects, and assuming the pulley to be massless, Find the acceleration of the two blocks

asked by Anonymous on October 21, 2011
88. ## maths

A rectangular grassyplot is 112m long and 78m broad. It has a gravel path 2.5m wide all around it on the inside. Find the area of path and the cost of constructing it at the rate of 1.80 per sq. m .

asked by Anonymous on December 28, 2012
89. ## physics

find the solution of the wave equation for a vibrating string of length (l)=10units with ends fixed .it is given that c^2=1,initial velocity is zero and initial deflection is u(x,o)=k(sinx-sin2x)

asked by ashely on February 11, 2012
90. ## Calculus (Area Between Curves)

Find the area of the region IN THE FIRST QUADRANT (upper right quadrant) bounded by the curves y=sin(x)cos(x)^2, y=2xcos(x^2) and y=4-4x. You get: a.)1.8467 b.) 0.16165 c.) 0.36974 d.) 1.7281 e.) 0.37859

asked by Mishaka on February 29, 2012
91. ## Algebra 1

Mary is 9 years younger than Greg's age doubled, and their total ages combined equals 33. Create and solve an equation to find both children's ages.

asked by Kayla on September 2, 2016
92. ## physical science

. The maximum allowable resistance for an underwater cable is one hundredth of an ohm per metre. If the resistivity of cooper is 1.54 × 〖10〗^(-8) Ω m, find the least diameter of a copper cable that could be used (show work)

asked by michelle on February 17, 2017
93. ## Maths

Assuming the earth to be a sphere of radius 6370 km.If seventy five percent of the earth's surface is covered by water, then find how many square kilometres is area of the land.

asked by Ruby on March 7, 2016
94. ## chem

Aluminum hydroxide and sulfuric acid neutralize to make water and aluminum sulfate. the first step i have done: Al(OH)3 + H2SO4 -> H2O + Al2(SO4)3 i find this one confusing XD

asked by hannah on November 22, 2010
95. ## Math

Kevin is riding a bike with a 1.5 feet diameter. If the tire makes 100 rotations, how far has Sherry traveled? don't tell me the answer show me how you can find the answer?

asked by Taylor on August 30, 2015
96. ## math

a well of diameter 3 m is dug 14 m deep . the earth taken out of it has beem spread evenly all around of it in the shape of circular ring of width 4 m to form embankment. find the height of embankment .

asked by Avi on March 16, 2016
97. ## Math

The volleyball court -if it id 80 ft long and 50 ft wide, how would you find the dimensions of the court? Explain please! Remember that I am a 6th grader. Please don't give me a 10-12th grade answer.

asked by D on September 24, 2012
98. ## College Math

Suzy has a bag containing 5 red marbles, 2 green ones, 4 white ones, and 3 purple ones. She grabs 9 of them. Find the probability that she does not have all the green ones. Express the answer as a fraction in lowest terms.

asked by Sabrina on April 21, 2009
99. ## maths

Find the periodic payment R required to amortize a loan of P dollars over t years with interest earned at the rate of r %/year compounded m times a year. P=30,000 r = 8 t = 12 m =1

asked by luvena on December 21, 2014
100. ## calculus

Find the x-coordinates of all points on the curve f(x) = sin 2x − 2 sin x at which the tangent line is horizontal. (Enter your answers as a comma-separated list. Use n to represent any integer.)

asked by Anonymous on September 23, 2012