# 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 531
1. ## Math

Two towers P and Q are 600m apart with P being due east of Q. A church is on a bearing of 210 degrees from P and 125 degrees from Q. Find the distance of the church from P and Q.

asked by Liam on April 7, 2014
2. ## economics

if an investor invest 450.00 in a certain organization in order to yield × as a return of 25.00. find the return in an investment of 700.000 by Y in the same organization?

asked by CEO on July 6, 2019
3. ## math

the count of bacteria in a certain experiment was increasing at the rate of 2% per hour find the bacteria at the end of 2 hours if the count was initially 500000

asked by Anonymous on October 26, 2018
4. ## math

A factory produces bicycles 6 motorcycles in 9 hours. Write a proportion and solve it to find how many hours it takes to produce 16 motorcycles

asked by Brittany on February 19, 2013
5. ## math

As a reduced fraction what is the difference between the value of the mean and the value of the median in the data set below: 8, 11, 3, 5, 9, 7, 12, 13, 5? does this mean to find the mean and the median and subtract? because if it does then the answer I

asked by Anonymous on September 9, 2009
6. ## Math

Here is the problem. I got the answer but I would like a better understanding. Find the equation of a line that passes thru(6,-2) and is perpendicular to equation x-3y+16. I got the final answer being -3x+16. Can someone please explain how to get this? I

asked by Jenn on April 25, 2016
7. ## Physics

A point source is 1.20m below the surface of a body of water. Find the diameter of the circle at the surface through which light emerges from the water.

asked by Vanessa on April 19, 2017
8. ## Pre-Cal

From a point 50 feet in front of a church, the angle of elevation to the top of the steeple is 48 degrees. Find the overall height of the church and steeple.

asked by Sandra on May 23, 2011
9. ## Calculus

find the derivative of f, when f(x)=1/sqrt(x) ok so i tried simplifying it by multiplying top and bottom by conjugate radical, the top simplified to h but the bottom was a mess.

asked by Nikita on October 25, 2009
10. ## Chemisrt

What is pre-exponential factor for diffusion, because i have a problem with this equation. D=D0*exp[-Ea/R*T] where D=2*10^-13 Ea=2.9*10^-19 joules/atom T=1009 K How to find the pre-exponential ?

asked by Musaka on July 27, 2014
11. ## maths

Find the smallest n such that for any prime p, at least 20 numbers 1,2, ..., n are quadratic residues not modulo p. k is quadratic residue modulo p if there exists an integer j such that j^2 ≡ k (mod p).

asked by maths on July 2, 2013
12. ## mathematics

A book contains 192 pages. A boy reads x complete pages everyday. If he has not finished the book after 10 days, find the highest possible value of x.

asked by boluwatife on February 12, 2015
13. ## Physics

A small charged sphere,A, carries 4 times the charge of another sphere B. When these are placed 4.5 cm apart, they experience a force of 0.016N attraction between them. Find the charge on B.

asked by Alex on July 24, 2014
14. ## mathematics

A man invested a sum of N280.00 partly at 59% and partly at 4%. If the total interest is N12.80 per annum, find the amount invested at 5%.

asked by sunkanmi on April 5, 2014
15. ## Algebra

I think this is a easy trick question, so I probably know the answer but I just wanted to double check. What is the domain and range of the function f(x) = 3^x Find the f^-1 and its domain and range? Thanks for your help.

asked by Melanie on August 7, 2011
16. ## Math

Adnan bought 96 eggs at the rate of RS.40 per dozen and sold at the rate of RS.4 per egg.find the percentage of profit if 3 eggs were rotten

asked by Anonymous on May 5, 2018
17. ## math

two marbles are drawn without replacement from a box with 3 white,2 green, 2 red, and 1 blue marble. Find the probability.  Both are white marbles.

asked by jackie on August 26, 2015
18. ## geometry

hi! ok so im stuck on thes problems. the question is the variable expressions represents the angle measures of a triangle. find the measures of each angle. ok so the first one is m

asked by eao on October 7, 2008
19. ## AP pre Cal

Forces with magnitudes of 45 N and 90 N act on an object at angles of 20 degrees and 115 degrees respectively, with the X-axis. Find the magnitude of the resultant of these forces.

asked by Boyd on March 3, 2016
20. ## s v m latehar ( math)

The maen and midean of 100 observation are 50 and 52 respectively. The value of largest obsrevation is100. It was later found that it is 110 not 100. Find true mean and midean

asked by Ravikant pathak on October 23, 2015
21. ## PHYSICS

A 3kg mass is observed to accelerate 20m/s^2, 20 (degrees). Two forces act on the object. One force is 4.5N, 45 (degrees). Find the other force.

asked by CHRISTIE on November 30, 2010
22. ## physics

You throw a ball vertically from an apartment balcony to the ground 14.2 m below. Find the ball's initial velocity if it hits the ground 1.08 s after you release it.

23. ## geometry

Find the measure of one exterior angle of a regular polygon that has 21 sides. Round your answer to one decimal place. m∠exterior angle

asked by Anonymous on July 11, 2016
24. ## statistics

a manufacturing process has a 70% yeild,meaning 70% of the products are acceptable and 30%are defective.if 3 of the products are randomly selected find the probability that all of them are acceptable.

asked by rency on October 27, 2009
25. ## physics

A block of weight 11 N is placed on a frictionless incline which makes an angle of 240 with the horizontal. Find the acceleration of the block as it slides down the incline.

asked by Anonymous on December 16, 2012
26. ## Math

The greater of two consecutive even integers is six less than twice the smaller. Find the integers. Let the smaller be x. That means that the larger is x+2. From your statement x+2=2x-6 Solve for x. I hope this helps. Thanks for asking.

asked by Jaime on June 3, 2007
27. ## ai

Ellen drove 240 miles in 3.5hours. To the nearest tenth, find Ellen's average speed in miles per hours

asked by d on October 21, 2015
28. ## Geometry&trigonometry

consider the polar graph §æ =(2/3)¦Ð. (¦Ð=pie) find the value of N such that r=N§æ, where 0¡Ü §æ ¡ÜN¦Ð has a)no solution b)one solution c)two solution i think i have figured the first question out.since it's no solution then N must be N

asked by Pauline on October 24, 2007

Abby rows 10 km upstream and 10 km back in a total time of 3 hr. The speed of the river is 5km/h. Find Abby’s speed in still water.

asked by Elisa on June 19, 2011
30. ## math

HELP! I have a question , and i need it to be where i can understand it. why is a number, any number, is 1 when raised to the 0 power. i need it for an assessment. and i can't find a site that explains anything to me to where i can understand it enough to

asked by Yee on January 24, 2018
31. ## math

adnan bought 96 eggs at the rate of 40 per dozen and sold at the rate of rs 4 per egg.find the %age of profit if 3 egg were rotten

asked by tooba on October 23, 2018
32. ## d

Calculus help!!Suppose an earthquake is measured with a magnitude of 6 on the Richter scale with an error of at most 2%. Use differentials to find the error in the intensity of the earthquake

asked by Anonymous on November 7, 2012
33. ## Statistics

A study of 40 bowlers showed that their average score was 186. The standard deviation of the population is 6. Find the 95% confidence of the mean score for all bowlers.

asked by Greg on April 27, 2019
34. ## Mechanics

Two forces act an angle of 120degre.The bigger force is of 40N and the resultant is perpendicular to the smaller one.Find the smaller force.

asked by Mukul on February 4, 2015
35. ## math

a rectangular vegetable bed 10m long and 6m wide is edged on four sides with 2m wide border. find the area of the border

asked by Anonymous on October 13, 2014
36. ## Trigonometry

Two circles, whose radii are 12 inches and 16 inches respectively, intersect. The angle between the tangents at either of the points of intersection is 29'30'. Find the distance between the centers of the circles.

asked by Anika on October 24, 2015
37. ## Pre-Algebra B

A Venn diagram with two circles is drawn. Each circle has a diameter of 10 cm. The overlapping area is 20 cm^2. Find the total writing area within the diagram.

asked by tyryssa on May 27, 2011
38. ## Science 8

The question is "Explain the difference between a filament and a photophore." I know that a photophore is a machine that an optomitrist uses to find your prescription for glasses, but I am not sure what a filament means. Please Help!

39. ## Math

Jim is able to sell a hand-carved statue for \$670 which was a 35% profit over his cost. How much did the statue originally cost him? How do you find the answer to this?

asked by Smith on March 11, 2008

The perimeter of a quadrilateral pqrs =30mm and it area is 50mm squared. Find the perimeter and area of a p'q'r's'if the scale factors is 1:5 answer please

asked by Anonymous on October 23, 2018
41. ## math

a manufacturing process has a 70% yeild,meaning 70% of the products are acceptable and 30%are defective.if 3 of the products are randomly selected find the probability that all of them are acceptable

asked by rency on October 27, 2009
42. ## Pre-Cal

Find the 5 roots of x^5+1=0 in polar and Cartesian form. (x^5 means x to the 5th power) x^5 = -1 = e^[i (2n + 1) pi] where i is any integer x = [e^[i (2n + 1) pi]]^(1/5) = e^(i pi/5)= cos pi/5 + i sin (pi/5) = e^(3 i pi/5) = cos (2 pi/5) + i sin (2 pi/5)

asked by Jack on December 6, 2006

an inverstment of 35000 is made for 5 years at 6% interest rate.find its compound interest and compound amount if it is compounded quartely.

asked by rose.m on May 26, 2011
44. ## Math

a student opens a mathimatic book to two facing pages. The product of the page numbers is 930. Find the page numbers.

asked by Rmz on October 5, 2009
45. ## Math

A 51 meter rope is cut into 2 pieces so that one piece is 6 meters longer than four times the shorter piece. Find the lengths of both pieces.

asked by Kimberli on September 19, 2012
46. ## Math

Find the volume of a sphere with radius 9 yd. A. 3,829.7 yd3 B. 3,052.1 yd3 C. 381.5 yd3 D. 339.1 yd3 the answer is B=3052.1

asked by jill on March 17, 2016
47. ## mensuration

A rectangle lawn 20meter long and 12meter wide is bordered by a path 2 meter wide. Find area of the path?

asked by maan on May 14, 2011

Mix 5mL of 0,002M Fe(NO3)3; 3mL of H2O; and 3mL of 0,002M KSCN.... how can you find the initial concentration of Fe and SCN??

asked by Chris on January 11, 2009
49. ## Science

A jet aircraft is traveling at Mach 2.5 through air at 1 °C. What is the jet's speed in m/sec? I can do the equation myself, I just need to know what equation I need to do in order to find the answer.

asked by Elisabeth on April 3, 2013
50. ## pre calc

Two forces of 50 and 70 N (newtons) act on an object. The angle between the forces is 40°. Find the magnitude of the resultant and the angle that it makes with the smaller force.

asked by Julie on April 7, 2008
51. ## Algebra

The profit, y, be selling x pretzels is found by the formula y = -0.002x^2 + 1.6x -350. Find the number of pretzels that must be sold to maximize profit.

asked by Jane on December 12, 2011
52. ## math

Think of a 135 digit number formed by writing the first 72 natural number side by side in a string.(i.e.) 1 2 3………70 71 72. Find the remainder when it is divided by 12. a. 2 b. 9 c. 0 d. 5

asked by Anonymous on September 26, 2014
53. ## math

the official size of a NCAA basketball has a circumference of almost 31.4 inches. find the amount of cubic inches of air that the basketball can hold.

asked by bryce on February 5, 2013
54. ## math

A quantity T is partly constant and partly varies as the square root of s. a) Using constant a and b, write down an equation connecting T and S. b) If S = 16, and when T = 24 and S = 36 when T = 32, find the value of the constants a and b.

asked by kudu on February 9, 2015
55. ## calculus

If \$3500 is invested at an interest rate of 5.25% per year, compounded continuously, find the value of the investment after the given number of years. a. 4 years b. 8 years c. 12 years

asked by Cara Delvin on October 8, 2018
56. ## chemistry-science

A 500 ml buffer solution contains .2M Acetic acid and .3M sodium acetate. Find the pH of the buffer solution after adding 20 ml of 1M NaOH, what is the pH? (pka = 4.74)

asked by jess on April 30, 2010

With help of the 10 equilateral triangles of side 3 cm, 8 rectangles of 4*2 cm and 4 square of 3*3 cm make 3 structures using all the figures. find the perimeter of all the triangles, squares, and rectangles??

asked by Jay on November 19, 2010
58. ## Math

AB is a 6 m high pole. CD is a ladder inclined at an angle of 60 degrees to the horizontal and reaches up to a point D of the pole. If AD = 2.54 m, find the length of the ladder

asked by Anonymous on September 18, 2017
59. ## math

A rectangular animal pen will be built using 200 meters of fencing. If one side of the rectangle is meters, find the area of then pen.

asked by Shauna on November 19, 2010
60. ## geometry

Between the points (8,-6) and (-8, 6) find A.) The distance (simplified radical form use sqrt(n). B.) The midpoint ( use ( , ) and .5 for 1/2. Separate answer with commas. Distance, midpoint

asked by Daniel on May 8, 2012
61. ## math

A room measures 12 feet by 15 feet. find the scale that would allow the room to be shown as large as possible on a piece of paper. explain your reasoning.

asked by john on December 8, 2011
62. ## Calculus

Find the average interval of function 3x^3-12x^2 on the interval [-5,4]? My answer is 114.75 but when i put it on submission , it tell me that its wrong not sure why kindly help and tell me right answer

asked by Asfand on September 12, 2016
63. ## GRE prep

A sphere with diameter 1 unit is enclosed in a cube of side 1 unit each. Find the unoccupied volume remaining inside the cube.

asked by Linda on September 29, 2015
64. ## math

Given G of x equals the integral from 1 to x of the natural logarithm of the quantity 2 times t plus 1, dt, find G '(x) ln(2x + 1) ln(2x + 1) − ln3 ln(2t + 1) + C 2 divided by the quantity 2 times x plus 1 my answer is ln(2x+1) but I dont think its right

asked by Anonymous on February 3, 2017
65. ## Chemistry

Find the approximate pH range suitable for the separation of Fe3+ and Zn2+ by precipitation of Fe(OH)3 from a solution that is initially 0.048 M in both Fe3+ and Zn2+.

asked by Monica on May 23, 2010

The diagonals of a trapezoid are perpendicular and have lengths 8 and 10. Find the length of the median of the trapezoid. I don't get it... i got as far as the area is 40, and m (median) times the height is 40 as well... please help!

asked by Knights on December 4, 2012
67. ## math algebra trig

For the graph of each function, find an equation of the line of symmetry and the coordinates of the vertex. Tell whether the value of the function at the vertex if a maximum or a minimum: a) y = -x^2 + 4x - 7; b) y = 2x^2 + 4x; c) y = -3x^2 - 18x + 5.

asked by CHEYANNE MARIE on May 5, 2012
68. ## Math

A particle is moving along the x axis so that its distance x in meters,at time t seconds,is x(t)=3,2(sqrt of tan (5t)).Find its velocity at time t=1,5 seconds.

asked by Butho on September 21, 2015
69. ## algebra 2

a triangluar garden has an area of 189 square feet. its height os 3 feet more than ots base. find the measure of the base.

asked by amanda on March 18, 2012
70. ## Math

Given that the Consumer Price Index was 72.6 in 1979 and 82.4 in 1980, find the inflation rate from 1979 to 1980 to the nearest hundredth of a percent.

asked by Bo on September 26, 2017
71. ## Algebra

The product of two numbers, A and B is 840. THe difference of two numbers, A and C is 816. GIven that C is the greatest number and B is the smallest 2-digit even number, find the values of A, B, and C?

asked by Cm on June 29, 2016
72. ## Math

the figures are similar. the are of one figure is given. find the area of the other figure to the nearesr whole number. the area of the larger triangle is 1,589 ft squared

asked by Anonymous on November 20, 2011
73. ## Physics

Supposed that you are on a planet, which has an average radius 1*10^9m and average density 7.4kg/m^3. Assuming that it's a perfect sphere, find the mass of the planet.

asked by Scoop on October 30, 2012
74. ## calculus

A ceiling in a new home rises 8 feet over a distance of 29 feet. Find the slope of this ceiling. Round your answer to two decimal places

asked by Krystle on December 13, 2010
75. ## Physics

if light is incidence at a depth of 246cm, 224cm of a coin in a tank, refractive angle is 30 degree find the incidence angle

asked by J. black on October 8, 2016
76. ## Statistics

A shipment of portable radios contains 14 good radios and 3 defective ones. If two are randomly selected (without replacement) and tested, find the probability that at least one will be defective.

asked by Katie on December 10, 2011
77. ## Statistics

A shipment of portable radios contains 14 good radios and 3 defective ones. If two are randomly selected (without replacement) and tested, find the probability that at least one will be defective.

asked by Katie on December 10, 2011
78. ## Trig

Find secx if sinx = -4/5 and 270 < x < 360. tan^2x+1=sec^2x (-4/5)^2+1=sec^2x 16/25+1=sec^2x 17/25=sec^2x sqrt 17/5 I don't know if it should be positive or negative.

asked by does it matter at this point? on March 7, 2008
79. ## s.k.d.a.v

Two forces act an angle of 120degre.The bigger force is of 40N and the resultant is perpendicular to the smaller one.Find the smaller force.

asked by sunil on September 25, 2015

use integration to find the volume of a pyramid with heighs and square base witht of 6 unit and square base with sides of 4 units

asked by Anonymous on October 16, 2014
81. ## maths

The cost of 100 fruits is rupees 500. Cost of 1 watermelon ,1 guava,1 banana respectively rupees 50,10 and 1 find the no.of fruit of each type

asked by sanjay on September 16, 2015
82. ## Linear algebra

Consider for every real number a the linear system of equations: { x +( a + 1 )y + a^2 z = a^3 { ( 1 - a )x +( 1 - 2a )y = a^3 { x +( a + 1 )y + az = a^2 b)Find the values of a for which the system has no solution, infinitely many solutions, and a unique

asked by Elissa on April 27, 2014
83. ## chemistry

How do you find the molarity(M) of NaOH in this reaction: 2NaOH(aq) + H2C2O4-H2O > Na2C2O4(aq) + 2H2O The only given information is 0.2079g of H2C2O4-2H2O

asked by Holly on May 11, 2011
84. ## Algebra

A student opens a math book to 2 facing pages. The product of the page numbers is 930. Find the page numbers.

asked by SuziQ on March 17, 2008
85. ## math

The area of a spherical balloon expand at a rate of 0.4cm square/s .find the rate at which its volume expand when the radius is 12cm

asked by lyn on March 26, 2017
86. ## math

Ellen drove 220 miles in 3.5hours. To the nearest tenth, find Ellen's average speed in miles per hours

asked by keshia on April 19, 2012
87. ## Trigonometry

The base of a trapezoid are 397.62 and 254.15 respectively, the angles that the sides make with the longer base are 68°39.2' and 72°6.0'. Find the sides and the diagonal. Need help with this pls.

asked by Jay on May 15, 2018
88. ## physics

Use energy methods to find the speed of a 2.0-kg block just before it hits the flor if the coefficent of kinetic energy of the 3.0-kg block and the table is 0.15m

asked by Guy on October 30, 2012
89. ## Physics

Mandy picks up a 25 N book from the floor to a height of 0.50m. How much work does Mandy do? (Hint use w=mg to find the force necessary to move the book)

asked by Jennifer Tran on April 8, 2013

john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE.

asked by Charlotte on December 13, 2014
91. ## math

Two rectangles are similar. One has a length of 10 cm and a width of 8 cm, and the other has a width of 7 cm. Find the length of the second triangle. Round to the nearest tenth if necessary. I got 8.8 cm. I made a proportion 8/10=7/x and that's how I got

asked by keisha on November 23, 2007
92. ## Math

A fair coin is tossed two times in succession. The set of equally likely outcomes is {HH, HT, TH, TT}. Find the probability of getting exactly one head. The probability of getting one head

asked by Jessica on March 23, 2017

How do I find the answer to the following question without knowing the 3rd vertices? Graph a triangle with vertices (3,-2), (-3,2) and height of 3 units. The answer is supposed to be (3, -2), (0,1) and (-3, -2).

asked by Alexis on October 5, 2015
94. ## maths

find the height of a pole which casts a shadow 22 cm long at a time and place where the shadow of a stick one meter long ig is 55cm

asked by raju on July 10, 2014
95. ## English

asked by Ramesh Reddy on January 7, 2010
96. ## math

the official size of a NCAA basketball has a circumference of almost 31.4 inches. find the amount of cubic inches of air that the basketball can hold.

asked by bryce on February 5, 2013
97. ## Math

Find the equation of a hyperbola of the form x squared / M - y squared / N = 1 the transverse axis is 12 and the foci from the center is 16 is the answer x squared / 36 - y squared / 220 = 1

asked by Anonymous on May 3, 2011
98. ## Math Trig

Suppose that X is an angle in standard position and that X' is it's reference angle. If cosX = -4/ squareroot of 17. find the exact value of cosX' is it 4/square root of 17?

asked by kyu on May 24, 2010
99. ## physics

a large chunk of ice with mass 15 kg falls from a roof 8 m above the ground . find the kinetic energy of the ice when it reaches the ground

asked by lala on February 6, 2012
100. ## math

A triangle has a base of 7 ft. and an altitude of 15 ft. Find its area to the nearest tenth. Choose the best answer from the options below: A 52.5 ft² B 53.5 ft² C 54.5 ft² D 55.5 ft²

asked by makeeda on May 21, 2011