# 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 465
1. ## math

Find the coordinates of the focus, the lenth of the lactus rectum and coordinates of its endpoints and the equation of the directrix, then sketch each curve of 2y^2=8x.

asked by jay anne marie on July 8, 2016
2. ## geometry

find the angle of wlevation of the sun when a 12.5 meter tall telephone pole casts an 18 meter long shadow?

asked by Alma on May 12, 2011
3. ## Educational Research

Assume that 150 scores are normally distributed with a mean of 92 and a standards deviation of 11.5 Find the z score corresponding to a score of 115. Show your work.

asked by Betty on December 14, 2011
4. ## physics

Only two forces act on an object (mass=4.41 kg), as in the drawing. Find (a) the magnitude and (b) the direction (relative to the x axis) of the acceleration of the object.

asked by jordan on October 1, 2015
5. ## trigonometry

find the measure of the central angle, where the pendulum of length 40cm travels an arc of 5cm as it swings through an angle

asked by deyanz on November 29, 2014
6. ## calculus

The velocity function is v(t) = - t^2 + 4 t - 3 for a particle moving along a line. Find the displacement and the distance traveled by the particle during the time interval [-2,6].

asked by Anonymous on December 9, 2011
7. ## ellipses

given an ellipse; 2x^2+6y^2+32x-48y+212=0, find center, major axis, minor axis & distance from c to foci?

asked by Amber on March 27, 2013
8. ## physics

Help! Two charges are placed on the x axis. One of the charges (q1 = +8.71C) is at x1 = +3.00 cm and the other (q2 = -28.6C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x

asked by antonio on October 8, 2012
9. ## math

Arc AB of circle O contgains 72 degree and is 6 pi long. Find area of circle O. a. 9 b. 36 c. 30 pi d. 225 pi e. 900 please answer and explain

asked by thomas on April 19, 2014
10. ## math

Find the area of the following plane figure. A circle whose circumference measures 28 centimeters. Area (to the nearest square centimeter) =

asked by C on July 4, 2016

If a student randomly guesses at 15 multiple-choice questions, find the probability that the student gets exactly seven correct. Each question has four possible choices

asked by danasiy on August 2, 2015
12. ## maths

if y=e^(3x) sin 4x. Show that (d^2y/dx^2)-(6dy/dx)+25y=0 (b) for the curve with equation y=(x^2+1)/(x^2-4), find (i) the cordinates of the turning point(s). (ii) the equation of the asymptotes

asked by masuzyo on October 3, 2013
13. ## physics

3 charges are placed in a equilateralABC of side l.a point is kept between the sideBc such that the chargeA remains.find the magnitude and sign of the point charge

asked by sanjay on March 8, 2017
14. ## Math

The region bounded by the given curves is rotated about the specified axis. Find the volume V of the resulting solid by any method. y = −x^2 + 14x − 45, y = 0; about the x-axis

asked by Em on January 21, 2013
15. ## engineering physihcs

I need to create an Excel chart showing world oil reserves vs. time, which are both in columns and cannot find how to graph this in excel. thank you.

asked by jen on February 12, 2011
16. ## Finite Math

An NBA player makes a successful free-throw 80% of the time. Find the probability that he is successful exactly 4 times in 5 attempts?

asked by Cindy on October 17, 2012
17. ## math (4)

Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or -∞, type INFINITY or -INFINITY.) h(u,v) = sqrt(4-u^2-v^2) u^2+v^2 = ?

asked by Mia on April 28, 2014
18. ## FINITEEEE

An NBA player makes a successful free-throw 80% of the time. Find the probability that he is successful at least 4 times in 5 attempts?

asked by Anonymous on October 18, 2012
19. ## MATH214

Find the surface area of a right circular cone topped with a hemisphere. the height of the cone is 8cm, the radius is 4cm.

asked by Rebecca on March 2, 2010
20. ## math

From the set A={3,root2,2root3,root9,root7},a number is selected at random.find the probability that is a rational number.

asked by I-learn on September 30, 2015
21. ## Math (sigma stuff!)

Hi! Looking to find n∑k=1 8(k/n) (n is supposed to be on top, k=1 below the sigma sign)in closed form. I've tried doing 8*[(n(n+1)/2)/n], and that didn't seem to work. I'm not sure if I'm supposed to do anything with the n or if it might be an issue with

asked by Mia on October 25, 2014
22. ## PLEASEEEEEEEEEEEEE HELP. (GEOMETRY)

A right triangle has hypotenuse 8 and area 8. Find the perimeter? I think I have to use Heron's Formula for this question. Please help & show work. Thank you very much. Your work is very much appreciated.

asked by My Name Is Bob on March 27, 2012
23. ## calculus

find the slope of the tangent line to the curve (sqrt 2x+4y) + (sqrt 4xy) = 9.16 at the point (1,5) dy/dx method implicit differantiation?

asked by sal on May 9, 2010
24. ## psy

Ms. Sue, Could you help me find some datas that could help me explain : Jane Loevinger's stages of ego development. Include manifestation that might appear during each of the stages.

asked by rose - Ms. Sue on December 5, 2008
25. ## Pre-Calc

Find the point (x, y) on the unit circle that corresponds to the real number 5pi/6. Use it to evaluate cos n. Is cos n = (-sqrt(3)/2)?

asked by Anonymous on September 9, 2015
26. ## Physics

A player kicks the football from the ground with a velocity of of 30m/s at 45 degree angle. Find the initial vertical velocity?

asked by Leroy on March 13, 2012
27. ## algebra

Find the zeros of the function. f(x) = 2x^2-2x-1 Use the quadratic equation x= (2 +- sqrt (4+8))/4 x = 1/2 +- 1/2 sqrt 3 check that. the answer would be negative 96 I think respond back if not right

asked by anonymous on January 10, 2007
28. ## MATH214

Find the surface area of a right circular cone topped with a hemisphere. the height of the cone is 8cm, the radius is 4cm.

asked by Rebecca on March 2, 2010
29. ## Chemistry

A solution containing 20gm salt in 200gm alchol.if density of solution 11gm/L find mass by volume percentage

asked by osama khan on June 28, 2019
30. ## Calculus based physics

A particle travels along a path described by the function y=0.2x^3. The exponent of velocity is given by vx=(5t^2)ft/s. When t=0, x=y=0, find the particle's distance from the origin and the magnitude of its acceleration when t=1s.

asked by Jimmy on February 27, 2012
31. ## Algebra

The length of a rectangular swimming pool is 2x-1 meters and the width is x+2 meters. Write a polynomial A(x) that represents the area. Find A(5).

asked by Alyssa on February 14, 2010
32. ## Geometry

Hi, I have to use algebra to find the coordinates of the point where two lines intersect, the first line passes through the points 4,3 and 10,0 and the second line is y=6. Any ideas would be very much appreciated, many thanks

asked by Tan on July 14, 2010
33. ## Geometryy

given that sec theta = radical13/whole number 3, and csctheta

asked by Jaime on September 2, 2011
34. ## maths

when making a cone out of a given sector form a circle do we need to add circumfernce of the base circle to find its surface area?

asked by Chirayu on October 18, 2009
35. ## algebra

find the range for the set of numbers: 13950,11250,14600,14300,14600,12200,11150,11300

asked by Keonn'a on September 29, 2018
36. ## calculus

Find the absolute maximum and absolute minimum values of f on the given interval. (Round all answers to two decimal places.) f(t) = t + cot(t/2)

asked by Michael on March 2, 2012
37. ## Physics

A 2500-kg car is traveling at 20 m/s around a road curve of radius 200 m. Find the central force acting on the car?

asked by Jen on September 13, 2015
38. ## 1210 Math

A projectile follows a parabolic path whose height, in meters, is given by the function f(x) =-x^+2x+2, find the maximum horizontal distance that the projectile may cover

asked by Gary on November 16, 2014
39. ## Science

Glass bricks are used where people want light allowed through, but still have privacy. What do the bricks do to make this happen? Please help I have searched everything and can not find the answer.

asked by Cherie on January 11, 2013
40. ## algebra

I asked this question earlier and wasn't sure what the answer was. Find all numbers for which the rational expression is undefined? 3/9w+7 Can someone help me figure this out? Is the answer 0?

asked by Noah on February 3, 2008
41. ## math

please help me with my math. Use the distance formula to find the distance between the following points. Show all your work. Round to the hundredths place. (4,5) and (7,3) (2.4,8) and 1,6.3) (29,4.1) and (53.2, 100)

asked by logan on October 19, 2008
42. ## geometry

The equal sides of an isosceles trapezoid each measure 5, and its altitude measures 4. If the area of the trapezoid is 48, find the lengths of its bases.

asked by Tracy on March 19, 2011
43. ## Algebra

For what real values of c is 9x^2 + 16x + c the square of a binomial? If you find more than one, then list your values in increasing order, separated by commas.

asked by XXX on June 23, 2015
44. ## math (3)

Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or -∞, type INFINITY or -INFINITY.) f(s,t)= sqrt(s^2+t^2) s = ? t = ?

asked by Mia on April 28, 2014
45. ## Math

Find the dimensions of a rectangular cover plate if its length is 8 inches longer than its width if its parameter is 60 inches(Hint:P=2L=2W)

asked by Monica on April 4, 2013
46. ## Math HELP

Find the present value of the annuity necessary to fund the withdrawal given. \$300 per month for 20 years Annuity earns 7% per year thank you for your time.

asked by LOUIE on March 7, 2017
47. ## algebra

k is uniformly chosen from the interval (-5,5) . Let p be the probability that the quartic f(x)=kx^4+(k^2+1)x^2+k has 4 distinct real roots such that one of the roots is less than -4 and the other three are greater than -1. Find the value of 1000p.

asked by Anonymous on March 21, 2013
48. ## PHYSICS

a 2500-kg car is travelling at 20 m/s around a road curve of radius 200 m. Find the central force acting on the car?

asked by Princess Blabla on September 12, 2015
49. ## maths

Bisi and Daniels ages add up to29.seven years ago bisi was twice as old as Daniel. Find their present age.

asked by ayomikun on October 9, 2018
50. ## Physics

A boy travels 8km north, 3km east and then 5km south. Find the magnitude of displacement of the boy

asked by Anhigna on July 10, 2015
51. ## Math

A rectangle is 8cm long and back broad. Find the range of valued of b if the perimeter of the range is not greater than 50cm and not less than

asked by Maryam on June 25, 2018
52. ## physics

two positive points charges of 15c and 13c are placed 12cm apart . find the work done in bringing the two charges 4cm closer.

asked by asad on June 7, 2014
53. ## Physics

An air-filled parallel plate capacitor has a plate separation of b = 0.58 cm, and an area A = 280 mm2. Find its capacitance

asked by Susie on March 6, 2010
54. ## English

Can you help me find communtaries for FDR's D-day prayer. When i google it, everything is about how Obama is opposed to adding the prayer to the WWII memorial.

asked by MB on November 26, 2011
55. ## Math

A circle has a radius that increases at a rate of 10cm/s. Find the equation of the outermost circle 6 seconds after it starts to expand. Using x2 +y2=r2

asked by Amjs on March 30, 2013
56. ## Math

The adjacent sides of parallelogram are 26cm and 28cm and one of its diagonal is 30cm. Find the area of the parallelogram by using heron's formula

asked by Anonymous on July 2, 2015
57. ## algebra

A welfare association collected Rs.202500/- as a donation from the residents. If each paid as many Rupees as there were resident. find the number of residents?

asked by Anonymous on August 13, 2013
58. ## college algebra

A rectangle picture frame has a perimeter of 1800 centimeters and a width that is 300 less than its length. Find the area of the picture.

asked by charlotte on November 20, 2014
59. ## engineering materials

can someone help me to find some good source about the topic: stress, strain, young's modulus of elasticity and shearing stress? pls. help me. thanks

asked by Akitsuke on July 7, 2009
60. ## Physics

A MAN WALKS 8KM NORTH AND 5KM IN A DIRECTION EAST OF NORTH .FIND THE DISTANCE FROM HIS STARTING POINT

asked by Anonymous on June 19, 2019
61. ## Maths!

Find the sum of all multiples of 5 between 100 and 300 inclusive. Ans: 8200 I do not know how to do this. Really do appreciate step by step workings and explanation. Thanks!

asked by Ariana on June 7, 2014
62. ## Uni Physics

Total mechanical energy of a flying rubber ball is 1692 J. It has a mass of 0.86 kg, and it is 8 m above the ground. Find the speed of the ball.

asked by David Gia on October 2, 2012
63. ## algebra

a cone shape pile as a base diameter of 24feet and is 7feet tall. find the volume of the sawdust pile

asked by marie on September 4, 2016
64. ## distance

two poles 25m and 20m stand upright in a field. the distance between two poles is 12m. find the dintance between their tops.

asked by banani on August 12, 2013
65. ## math

A 12-meter high post casts a 19-meter shadow. Find the angle of elevation to the sun. -what is/are given? -formula used -solution

asked by Daniela on February 20, 2017
66. ## trigonometry

plane flies speed of 185km/hr @ 120deg. it changes speed to 32km/hr @165deg due north. Find the direction and course.

asked by conor on March 2, 2017
67. ## Mathematics

If the radii of the circular ends of a conical bucket,which is 45cm high,are 28cm and 7cm.Find the capacity of the bucket?

asked by Elsa tony on March 15, 2017
68. ## Physics

Two charges are placed on the x axis. One of the charges (q1 = +5.44C) is at x1 = +3.00 cm and the other (q2 = -27.7C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x =

asked by Anonymous on September 27, 2015
69. ## Calculus

The function defined below satisfies Rolle's Theorem on the given interval. Find the value of c in the interval (-3, -2) where f'(c)=0. f(x) = x + 6x-1 , [-3, -2] Round your answer to two decimal places.

asked by olga on October 17, 2015
70. ## PHYSICS

The string is 0.80 m long with tension 7.00 N. The total mass of the string is 0.012 kg. Find the wavelength of this standing wave in meters

asked by Anonymous on April 11, 2013
71. ## Algebra I need the formula not the answer

If the sides of a square are lengthened by 8cm the area becomes 169^2. Find the length of a side of the original square. I am getting 34.25cm

asked by Micah on February 26, 2008
72. ## Calculus Help Please Urgent!!!

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = 5x^2, y = 5x, x ≥ 0; about the x-axis V = ??? Sketch the region

asked by Top on May 3, 2014
73. ## math

margaret Hillman invested \$4,000 at 1.2% compounded quarterly for one year. find the futrue value and the interest earned for the year

asked by Anoymous on May 25, 2015
74. ## Physics

A block is at rest on an inclined plane. 63 kg µs = 0.47 èc Find the critical angle, èc, at which the block just begins to slide. Answer in units of ◦

asked by Jackie on December 7, 2014
75. ## 7th grade

Write three equivalent fractions for each fracton 7/8,5/6 in order to get the answer am I suppose to find the number that I can divid both numbers and is it the same number

asked by Jessica on October 13, 2008
76. ## math

A rocket takes off vertically at time t=0, and during the first 10 s of flight its acceleration in m/s^2 is given by a(t)=10t-t^2 find the height reached by the rocket after 10s.

asked by bell on April 7, 2013
77. ## maths,intergration

A perticle moves in a srraight line through a fixed point 0 wth velocity (4-T)m/s find an expression for its displacemnt S from this point given that S=5 when T=0?

asked by Paul Castro on July 10, 2015
78. ## english

Find the words that go together. Snow , sled, rain, wind. Which words have the sound aw in saw?paw watch came tall. What does isn't mean?

asked by mac on October 15, 2009
79. ## Math

A road has an incline of 10°. To the nearest foot, find the increase in altitude of a car after driving 4,000 feet along the road.

asked by Mikee on October 9, 2011
80. ## math

Find the solution of the given system by the method of addition that was used in Examples 4 and 5. If there is no solution or infinitely many solutions, state so. Put the value for x in the blank. 2x - 3y = 1; x + 2y = 4

asked by tanya on April 3, 2012
81. ## Math

find the missing numbers and landmarks 18,20,20,24,27,27___,30,33,34,36,36,___ range:22 mode:27 minimum_____ maximum:___ explain how please

asked by Gio on October 27, 2008
82. ## Math

A circle has a radius that increases at a rate of 10cm/s. Find the equation of the outermost circle 6 seconds after it starts to expand. Using x2 +y2=r2

asked by Amjs on March 30, 2013
83. ## Math

A circle has a radius that increases at a rate of 10cm/s. Find the eaaquation of the outermost circle 6 seconds after it starts to expand.

asked by Amjs on March 30, 2013

I really need someone to look at my previous posts and edit them if they need to be edited. Please point out any grammatical errors. Thank you very much. You will find my posts as soon as you enter my name in the Search Box.

asked by Sara on May 1, 2010
85. ## Math

The adjacent sides of parallelogram are 26cm and 28cm and one of its diagonal is 30cm. Find the area of parallelogram by using heron's formula

asked by Meera on July 2, 2015
86. ## Calc

Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x³ - 4x on the interval [-1, 1]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem.

asked by LilPeep on January 3, 2018
87. ## Physics

A crate is pulled by a rope making 30 degrees with the horizontal. If the work done to move it in 15 m is 2000 J, find the tension in the rope.

asked by HiHello on October 20, 2014
88. ## Math

Find the unit rate for the given rate. Round to the nearest hundredth if necessary. 4. 30 cards for \$5.20 5. 192 miles on 6 gallons of gasoline

asked by Still yo girl on June 26, 2016
89. ## physics

In a series circuit, a generator (1254 Hz, 13.8 V) is connected to a 15.5-Ω resistor, a 4.25-µF capacitor, and a 5.32-mH inductor. Find the voltage across each circuit element. VR = VC = VL =

asked by linds on March 20, 2012
90. ## Geometry

Find the area of a trapezoid ABCD with verticles A(2,2) B(4,6) C(4,-3) and D(2,-1). Should I use a graph and go from there? I'm just not sure of how to set this up. The book answer is 12units. I am not coming up with the answer

asked by mary on April 10, 2011
91. ## physics - follow up question

so, (3.75)(4) + (.5)(3.75)(49) or 106.875 radians that's not the correct answer, so is it just the second part to find the additional angle? (.5)(3.75)(49) = 91.875 but it too is incorrect, what am I missing?

asked by luc on February 2, 2017
92. ## calculus

Use differentials (or equivalently, a linear approximation) to approximate ln(1.02) as follows: Let f(x)=ln(x) and find the equation of the tangent f(x) line to at a "nice" point near 1.02 . Then use this to approximate ln(1.02) .

asked by Denzel on October 18, 2010
93. ## AP Physics

The surface of the sun has a temperature of about 6.0 103 K. This hot gas contains hydrogen atoms (m = 1.67 10-27 kg). Find the rms speed of these atoms.

asked by Kieran on December 20, 2010
94. ## Math - Vectors

Relative to an origin O, the position vectors of points A and B are given by OA = 3pi + 4j + p^2k, and OB = -pi + -1j + p^2k Find the values of p for which angle AOB is 90° So here's my work so far: If angle = 90° then OA.OB = 0 OA.OB = p^4 - 3p^2 - 4

asked by Autumn on December 5, 2017
95. ## Science

a 30 gm bullet is fired from a gun of mass 2kg with a speed of 800m/s. Find the magnitude and direction of the velocity of gun

asked by Anonymous on January 19, 2017
96. ## math

Complete the square to find the vertex of each quadratic function. State the vertex. (10 marks) A) f(x) = x2 + 8x – 3 B) f(x) = x2 – 5x + 8 C) f(x) = 2x2 – 12x + 1 D) f(x) = 3x2 + 2x – 5

asked by james on March 20, 2012
97. ## physics

Please help! Two charges are placed on the x axis. One of the charges (q1 = +8.71C) is at x1 = +3.00 cm and the other (q2 = -28.6C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and

asked by alex on October 2, 2012
98. ## PHYSICS

Find the mass of water that vaporizes when 4.04 kg of mercury at 210 °C is added to 0.498 kg of water at 81.6 °C. I am stuck on trying to figure out how to solve this. Please help!

asked by KS on May 20, 2015
99. ## physics

The figure below shows four charges located at the corners of a square with sides of length a = 8.0 cm. If the charges q1, q2, q3, and q4, are all 4.0 Coulomb, then: find the x and y components

asked by jg on February 13, 2011
100. ## maths

Find the largest possible value of x^3+y^3+z^3 for realx, y, z, such that xyz^2=−64y−128x x^2yz=−32y−32z 3xy^2z=128x−64z

asked by stranger on April 1, 2013