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 539
1. Math

A bag contains 4 blue marbles and 4 red marbles. If three marbles are drawn in a row without replacement, find the probability that the marbles will be the same colour?

asked by Markus on May 18, 2016
2. Algebra

Stuck on this problem Find values for m and b in the following system so that the solution to the system is (-3,4) 5x+7y=b mx+y=22 5(-3) + 7(4) = b b = -15 + 28 = 13 m(-3) + 4 = 22 -3m = 22-4 m = 18/-3 = -6 Thank you Sanchi....I will use this as a template

asked by Misty on August 6, 2007
3. maths

The formula P=9d + 320 is the cost of buying an article "p" while "d" is the number of articles bought. if P=N797.00 find the number of articles.

4. Trig

assume a pulley has a radius of 12.96 cm. If it takes 18 seconds for 56 cm of belt to go around the pulley, find the angular velocity in radians per seconds

asked by SK on November 28, 2010
5. physics

Find the tensions in the given diagram. If the object supported weight is 800N T4 70o T5 70o T3 C B T1 T2 50o 30o A 800N

asked by chansa b on May 18, 2016
6. geometry

the sides of a quadrilateral abcd are 6cm,8cm,11cm and 12cm respectively,and the angle between the first two sides is a right angle.find its area.

asked by karan on June 22, 2011
7. math

Find the exact value of each trigonometric function. sin(θ)= 3/5 cos(θ)= 4/5 tan(θ)= 3/4 1. cos(2θ)= 2. tan(2θ)= 3. cot(2θ)= 4. sec(2θ )= 5. csc(2θ)=

asked by Stacy on June 10, 2018
8. Calculus

Find the derivative of y with respect to x: y=3sin^4(2-x)^-1 y=[3sin(2-x)^-1]^4 y'=4[3sin(2-x)^-1]^3 (-3cos(2-x)^-1)(-1) -(2-x)^-2 y'=[12cos(2-x)^-1][3sin^3(2-x)^-1][2-x]^2 but the answer does not have a 3 in front of sin. What happened to the 3?

asked by sh on March 21, 2010
9. Math

Write a list of steps that are needed to find the measure of angle B. A measures 72 degrees and C measures 113. What does B measure?! Please help!

10. math

John took out a loan for 51 months but paid it in full after 31 months. Find the refund fraction he should use to calculate the amount of his refund. would it be 51/31?

asked by Marshall on November 17, 2013
11. math

A pair of dice are rolled find the following, a) the probability of doubles, b) the odds in favor of a sum greater than 2, c) the probability of sum that is even and less than 5

asked by Andrzej on November 26, 2012
12. Math

The length of a rectangular piece of property if 1 foot more than twice the width. If the perimeter is 302 feet, find the length and width.

asked by RNRH on February 10, 2011
13. maths

two adjacent sides of a parallelogram measure 15 cm and 20 cm while the diagonal opposite their common vertex measure 25 cm.find the area of he parallelogram.

14. Math

The equation x^2 + k = 6 x has two distinct real roots. Find the range of values of k. I know that you do 36 -4k > 0 -4k > -36 k < 9 But I don't get why you switch the signs. So. When do u switch signs

asked by Lily on May 4, 2015
15. Algebra

The length of a rectangle exceeds twice its width by 4 feet. If the area of the rectangle is 286 square feet, find the dimensions.

asked by Katie on October 31, 2016
16. Algebra II

the original value of a car was 16,800 after 2 years the cars value has depreciated to 9,000 find the value of the car after 5 years to the nearest dollar

asked by Chyenne on March 20, 2017
17. math

i am a fifth grader and behind in math can you show me how to work this problem. two angles in a triangle are given. find x if x is the third in the triangle. 100 degree, 56 degree, x

asked by Anonymous on March 31, 2011
18. Economics

How would a communist economy react to social and technological changes? What is the role of nature in a communist economy? I can't find any information on these subjects. Could someone please help me? Thanks so much

asked by KC on February 11, 2011
19. math

The length of the top of a table is 4m greater than that the width. The area is 60m^2. Please help me find the dimensions of the width and length. Thank you in advance for your help?

asked by Mandy on December 11, 2011
20. algebra

A window is shaped like a rectangle whose perimeter is 294 in. The length is 6 times as long as the width. Find the length and the width

asked by shelia on February 10, 2011
21. Math

Paul is 20 years older than joy four years ago; the ratio of their ages was 7:3 find the present age of Paul

asked by Jane on May 20, 2018
22. chemistry

I have a lab finished and I have to find the dehydrated sample (show calculations) and the value of n (show calculations). I just need to know how I go about finding these answers using my data?

asked by Ashley on February 19, 2015
23. Math

The perimeter of an isosceles trapezium is 134 cm and the bases are 54 cm and 30 cm in length.find the length of nonparallel sides of the trapezium and its area.

asked by Mensuration on February 6, 2017
24. Calculus

The velocity of an object is given by v(t)=t(t^2-1)^(1/3) feet per second. Find the total number of feet traveled by the object in the time interval [0,3] seconds. (A)51/4 (B)34/3 (C)45/4 (D)51/8 (E)45/8

asked by Mike on October 31, 2016
25. Mathmatics

A sector of a circle of radius 9 cm subtends angle 120 at center of the circle find the area of the sector to the nearest cm

asked by Eleazar on June 6, 2017
26. math

A pair of dice are rolled find the following, a) the probability of doubles, b) the odds in favor of a sum greater than 2, c) the probability of sum that is even and less than 5

asked by Katarzyna on November 26, 2012
27. Trigonometry

Sarah used her calculator to find sin125 degree. She wrote down sin125 degrees = -.57. How could Sarah recognize that her answer is incorrect?

asked by O on March 1, 2015
28. Chemistry

A 10 g mass of krypton occupies 15.0L at a pressure of 210 kPa. Find the volume of the krypton when the pressure is increased to 790kPa. Thanks

asked by Amy on May 6, 2012
29. math

A pair of dice are rolled find the following, a) the probability of doubles, b) the odds in favor of a sum greater than 2, c) the probability of sum that is even and less than 5

asked by Andrew on November 26, 2012
30. ELA

Can someone give me examples of analogies in O Captain! my Captain and The road not taken or at least help me find them so that I can myself compare and contrast the use of analogies in both of these poems Thanks in advance

asked by connexus student on March 23, 2017
31. posibility

A pair of dice are rolled find the following, a) the probability of doubles, b) the odds in favor of a sum greater than 2, c) the probability of sum that is even and less than 5

asked by Katarzyna on November 26, 2012
32. algebra

If the sides of a square are increased by 3 meters, the area becomes 64 meters squared. Find the length of a side of the original square?

asked by Liz on April 28, 2010
33. math

Below are the results of tossing a number cube 9 times. Find the experimental probability of tossing an odd number. 4,3,6,6,2,5,3,5,1. a. 4/9 b. 1/2 c. 5/9 d. 2/3 ** am i correct?

asked by help on May 19, 2016
34. Math

A number consists of rwo digit number whose sum is 9. If9 is subtracted from the number its digits are interchanged. Find the number

asked by Palak on June 6, 2018
35. Math

Complete the Chart .. Whats the rate for Spaghetti ingredients Ounces of Spaghetti and Ounces of Tomato 12 __16 6 -- 8 3 -- X 2 -- X 1 -- X find the x's

asked by Veah on October 24, 2013
36. Math-Algebra

Given the table with values for A and r, answer the folowing: r 2 3 4 5 A 12.57 11.31 50.28 78.56 a. What equation represtnts the relationship of the values in the table above? b. Find the constant of variation. c. If r = 8, what would be A?

asked by Marie Pierre on November 17, 2013
37. Math

Jairo ears \$256 for 50 hours of work. Write an equation(proportion) to find x his wages for 76 hours of work

asked by Jason on December 6, 2010
38. geometry

the area of a triangle is 147 square inches and its height is 1.5 times its base. find the base and the height of the trianle.

asked by michelle on December 5, 2010
39. chemistry

You have 26.44 mL of 1.83 M HCl in a beaker. You dilute this acid with 40.08 mL of water. When you analyze the solution you find that the number of moles of HCl in the new solution is

asked by Anonymous on December 5, 2011
40. statistic

Your professor tells you that if you score an 85 or better on your midterm exam, then you have a 90% chance of getting an A for the course. You think you have only a 50% chance of scoring 85 or better. Find the probability that your score is 85 or better

asked by lara on September 27, 2016
41. Algebra

The difference of the cubes of two consecutive odd positive integers is 400 more than the sum of their squares. Find the sum of the two integers.

asked by John on March 4, 2013
42. physics newtons laws

A 184 N bird feeder is supported by three cables. angle 1 is 60 degrees and angle 2 is 30 degrees Find the tension in each cable.

asked by luc on October 18, 2009
43. Math

The force on an object is F =−21j . For the vector v =4i −j , find: a) The component of F parallel to v : (b) The component of F perpendicular to v : The work, W, done by force F through displacement v :

asked by Tim on May 6, 2018
44. Maths

a) A curve is defined by the following parametric equations x= 3t/t^2 +1 , y=1/t^2 +1 (i) Find an expression, in terms of t for the gradient of the curve. (ii) Determine the value of the gradient at the point where t=0

asked by Keira on May 2, 2019
45. math

The perimeter of the base of the regular quadrilateral pyramid is P = 30 cm. Find the sum of all edges of this pyramid, if the perimeter of a lateral face is 27.5 cm

asked by Anonymous on April 29, 2017
46. math

The perimeter of the base of the regular quadrilateral pyramid is P = 30 cm. Find the sum of all edges of this pyramid, if the perimeter of a lateral face is 27.5 cm

asked by guy on April 29, 2017
47. Algebra 1

Find the measure of the smallest angle of the right triangle. c= 90degree a= height ac= 7 and cb = 11 a-32.5 degree b-57.5 degree c-13.0 degree d-50.5 degree my answer is a 32.5 degrees

asked by Steve on March 29, 2015
48. Math

A binary operation * on the set of real numbers is defined by a*b= a+b-ab for a,b, c is belongs to R. i) show that the operation is associative. That is, (a*b)*c=a*(b*c) for all a,b,c belongs to R. ii) Find the value of -5*8 and also the value of

asked by Ilukui on May 2, 2016
49. Algebra

The difference of the cubes of two consecutive odd positive integers is 400 more than the sum of their squares. Find the sum of the two integers.

asked by John on March 4, 2013

Out of 42 kids in a class twice as many failed Ela as math,4 failed both. If 7 failed neither, find how many failed each subject. Please help and show work it would be great thanks i really need help thanks

asked by Dan on June 6, 2011
51. statistics

The table below shows the number of girls who ran certain distance. -------------|---|----|---|----|----|--Distance(Km) | 5 | 10 |15 | 20 | 25 | -------------|---|----|---|----|----|--No. of girls | 2 | 1 | 3 | 4 | X |

asked by Angel on June 5, 2011
52. MATH

The perimeter of the base of the regular quadrilateral pyramid is P = 30 cm. Find the sum of all edges of this pyramid, if the perimeter of a lateral face is 27.5 cm

asked by HELP on April 25, 2017
53. Math

Given that

asked by Chanel on August 19, 2015
54. Statistics

A survey of 90 families showed that 40 owned at least one gun. Find the 95% confidence interval of the true proportion of families who own at least one gun. Example

asked by Jodene on June 17, 2013
55. physics newtons laws

A 184 N bird feeder is supported by three cables. angle 1 is 60 degrees and angle 2 is 30 degrees Find the tension in each cable.

asked by luc on October 18, 2009
56. Geometry

The base of a right prism 50 inches high is a rhombus, with diagonals 30 and 16 inches. Find the total surface area of the prism.

asked by Gigi on March 3, 2013
57. geometry

how do you find the height of an isosceles triangle only knowing the lengths of all three bases? EX: There's isosceles triangle ABC with vertex angle B. AB= 5x-28. BC= 2x+11. AC= x+5

asked by erin on January 15, 2010
58. algebra

Two equal sides of a triangle are 1 metre more than half the third side. If the perimetre of the triangle is 22 meters find the lenth of its side.

asked by Anvay on October 5, 2016
59. Math

A gun ia fired at a distance 1.7 km away from sajid.sajid hears a sound 5 seconds later.find the speed at which sound travells.

asked by sajid on May 24, 2015
60. algebra

Need help with this The area of a trapezoid is 240 cm2. The height is 20 cm and the length of one of the parallel sides is 10 cm. Find the length of the second parallel side

asked by jennifer on October 4, 2016
61. physics

A particle moves in a straight line with an acceleration a ms^-2 at time 't' seconds where a = - 1/t² when t=1 the particle has a velocity of 3ms^-1 then find the velocity when t=4

asked by karan on August 19, 2014
62. algebra

Need help with this The area of a trapezoid is 240 cm2. The height is 20 cm and the length of one of the parallel sides is 10 cm. Find the length of the second parallel side

asked by jennifer on October 4, 2016
63. college alegebra

Can someone please help me!!!!!! Find th eequation of the line containing the point P and having the slope m. Write your answer in slope intercept form. Graph this line. P= (0,0) M = 0

asked by amy on November 16, 2011
64. Mathematics

the sum of all digits in each pair is 19 and the sum of the numbers in each pair is 100. I don't understand what the question is trying to ask? Is it to find that number, or?

asked by anon on August 21, 2015
65. Calculus

For Questions 1–2, use the differential equation given by dy/dx = xy/3, y > 0. 1. Complete the table of values x -1 -1 -1 0 0 0 1 1 1 y 1 2 3 1 2 3 1 2 3 dy/dx 2. Find the particular solution y = f(x) to the given differential equation with the initial

asked by William on May 7, 2018
66. math

"central park is 5 meters longer than it is wide. The area is 2250 square meters. find the length of the park"

asked by Ever on April 30, 2012
67. Statistics

X 0 1 2 3 4 5 6 7 8 P(x) 0.05 0.1 0.3 0.1 0.1 0.1 0.1 0.1 0.05 =As the manager you check the cashier ( to see if you need to open a new cashier line). What is the probability that you find exactly 2 people waiting in line? please need to know how to solve

asked by Larry on June 17, 2015
68. Algebra

Zandile is 4 years older than Thoko.Four years ago the product of their ages was 165.find their present ages

asked by Ropa Huchu on April 12, 2016
69. College math

1.Find the height to the nearest foot of a tree that makes a 50-foot shadow when a 2 ft. 6 in. pole is used to make a shadow of 3 feet.

asked by Tammy on April 26, 2012
70. algebra

Shoe O Rama is having a 20 % off sale this friday. Which equation below shows how to find the sale price, s, as a function of the original price, p?

asked by Marc on June 18, 2015
71. Algebra

The plans for a she'd call for a rectangular floor with a perimeter of 276ft. The length is two times the width. Find the length and the width

asked by Pam on August 10, 2014
72. Exponential Modeling

A can of soda in 1972 costs \$0.10, by 2012 it cost \$1.25. Find the rate at which the cost of a can of soda increases over this time period.

asked by Anonymous on May 1, 2016
73. Math

The perimeter of the base of the regular quadrilateral pyramid is P = 30 cm. Find the sum of all edges of this pyramid, if the perimeter of a lateral face is 27.5 cm

asked by Alisha on April 25, 2017
74. Maths (Need Help)

A(0,1) B(-2,3) C(2,-1) are the vertices of a triangle ABC. P and Q are the midpoint of the side AB and AC. (a) find the equation of PQ, (b) show that PQ is parallel to BC. (c) show the length PQ = 1/2 length BC.

asked by SAMA on April 3, 2016
75. statistics

Find the mean of the given probability distribution. The number of golf balls ordered by customers of a pro shop has the following probability distribution.

asked by mary on February 12, 2012
76. geometry

The scale factor is 5/4. Find the area of the pre-image if the area of the image is 150 in2.Show your work.

asked by bre on March 27, 2013
77. Calc

Find the mass and center of mass of the lamina that occupies the region D and has the given density function ρ. D is the triangular region with vertices (0, 0), (2, 1), (0, 3); ρ(x, y) = 5(x + y) m=? (x,y)=?

asked by Anon on October 18, 2016
78. Math

Drew is twice as old as his sister joy.The quotient of their ages five years ago is seven less than Joy's present age. Find out how old they are at present.

asked by Alex on July 29, 2015
79. is this correct?- math

find the domain of the real valued function; f(x) = sqrt(5 - (sqrtx)) my solution: 5 - (sqrt x) >=0 -(sqrt x) >= -5 (sqrt x)

asked by HARRY on February 12, 2012
80. Math

Find the area for the circle use 3.14 for pi. round to the nearest tenth 4mm is in the middle A. 12.56 mm squared B. 25.12 mm squared C. 50.24 mm squared D. 502.4 mm squared

asked by a name on April 4, 2019
81. gcse science

i need to find 3 examples of using combustion in everyday life and then i need combustion example , fuel used , and is fuel a fraction of crude oil? thankyou for your help:-}

asked by ++ LOUISA MAE++ on October 9, 2010
82. Math - Calculus

a) Find the area of the region R bounded by the graphs of the equations y=2x−x^2, x=0, and y=0. b)The line y=cx, where c>0, divides R into two subregions. Compute the value of c for which the two subregions have the same area.

asked by McKenna on April 18, 2017
83. Chemistry(Stoichiometry)

I know that the molar mass of Benzene, (C6H6) is 78.12 grams, but that is for one mole. Does anybody know how to find the mass of one MOLECULE of Benzene(all caps for emphasis) Thanks.

asked by LR on April 30, 2018
84. math

write two 2-digit numbers using each of the digits 1, 2, 3, and 4 only once. then find the sum of the numbers. what are the greatest and least possible sums that can be in made in this way? so far for my greatest, I have 41 and 32 = 73 and 14 and 23 = 37

asked by oscar on September 30, 2009
85. math

Find the volume of a cone with a radius of 10 mm and a height of 6 mm.? 628 mm3 600 mm3 1,884 mm3 1,254 mm3 is it c

asked by someone on March 6, 2013
86. pre - CALCULUS

Find the reference angle for the given angle. Show your work. -404° my answer is 44 degree , But i don't know how to put my work together..

asked by Ciara on April 10, 2015
87. Math

Cole can use the fomrula c=3.99n to find the cost c of buing n notebooks . if Cole has \$15 to spend, which is a reasonable range for c=3.99n?

asked by Jessie on September 13, 2011
88. Geography

Hi i need some help with my homework. Iv got 2 do a project on Snowdon (just Snowdon NOT Snowdonia) and i cant find a very good website :( Id really appreciate it if sumone could giv me a few good websites to look at :] xx

asked by Rhys Dickens on November 25, 2008

The perimeter of the base of the regular quadrilateral pyramid is P = 30 cm. Find the sum of all edges of this pyramid, if the perimeter of a lateral face is 27.5 cm

asked by Katniss Everdeen on April 23, 2017
90. Polygons on the coordinate plane

Draw a rectangle on a coordinate plane that has a perimeter of 16 units. Label all the vertica with they coordinate. Then find the area if he rectangle

asked by Ansley on April 13, 2015
91. Algebra

The difference of the cubes of two consecutive odd positive integers is 400 more than the sum of their squares. Find the sum of the two integers.

asked by John on March 7, 2013
92. Triangles

Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long.

asked by usman on March 31, 2015
93. Maths

the count of bacteria in a culture was 525000. if it is increasing at the rate of 3 1/2% per hour find the count of bacteria at the end of 2 hours.

asked by Mohit bashani on March 4, 2017
94. physics

the velocity acquired by a body moving with uniform acceleration is 12 m/s2 in 2 secs.and 18 m/s2 in 4 sec. find the initial velocity of the body?

asked by vinay on October 7, 2012
95. math

An adult giraffe that is 17.8 ft tall casts a shadow that is 65.9 ft long. Find the height of a baby elephant that casts a 11.8 ft shadow.

asked by shaneika on August 9, 2015
96. CALC

Find the mass and center of mass of the lamina that occupies the region D and has the given density function ρ. D is the triangular region with vertices (0, 0), (2, 1), (0, 3); ρ(x, y) = 5(x + y) m=? (x,y)=?

asked by Anon. on October 18, 2016
97. maths

a room 9m * 7.5m is covered with tiles. size of each tile is 20cm by 25cm. find the cost of tiles at the rate of \$45 per tile.

asked by sanjana on March 2, 2017
98. math

Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long

asked by Olanrewaju on March 31, 2015
99. Math

Suppose that an isosceles triangle has two sides of length a and one side of length c. 1) Find the area of the triangle in terms of a and c. Simplify as much as you can.

asked by Help on October 1, 2016