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

93,362 questions, page 696
1. algebra

Find the number of degrees in the measure of one of the base angles of an isosceles triangle, if the measure of the vertex angle is 36 degrees less than the sum of the measures of the base angles.

asked by mw on January 14, 2011
2. Chemistry

With the mass percent of Fe, oxalate ion, and water; find the mass percent of potassium ion in the complex iron salt difference. Fe= 11.37% H2O= 12.24% oxalate= 28.01%

asked by Anonymous on November 13, 2012
3. biology

Im carrying out an investigation on respiration, comparing the different rates in maggot tissue and mung beans. i was wondering if you could help me to find out why maggot tissue and mung beans are efficent to use?

asked by Kat on June 18, 2008
4. Math

A rectangle is 40 meters longer than its width if its length were increased by 10 meters and its width would be decreased by 5 meters its area would be increased by 190 square meters. Find the dimensions

asked by Jeska on October 13, 2016
5. Math-helpppppp

1)when a certain polynomial is divided by x - 3, the quotient is x^2+2x-5 and the remainder is -3. what is the polynomial 2) Find each quotient and remainder. Assume the divisor is not equal to zero. a)(2x^2+29x-x^3-40)/(-3+x) b)(6+7x-11x^2-2x^3)/(x+9)

asked by sarah on April 28, 2012
6. trig

If sin theta = x and -pi/2 is less than or equal to theta less than or equal to pi/2, find sin 2theta and cos 2theta in terms of x. Is it alright if I recommend you to my classmates tommorow? YOu seem to know more than my professor!

asked by Priya on May 1, 2008
7. Calculus

The vertical position of an object is modeled by the function h(t)=-16t^2 +5t+7, where h is measured in feet and t is measured in seconds. Find the object's initial velocity (that is, the velocity at t=0). Is it 5 feet per second?

asked by Kayla on March 26, 2014
8. STATISTICS

Consider a binomial random variable where the number of trials is 12 and the probability of success on each trial is 0.25. Find the mean and standard deviation of this random variable. I have a mean of 4 and a standard deviation of 2.25 is this correct

asked by John on June 10, 2010
9. math

The bases of trapezoid ABCD are \overline{AB} and \overline{CD}. Let P be the intersection of diagonals \overline{AC} and \overline{BD}. If the areas of triangles ABP and CDP are 8 and 18, respectively, then find the area of trapezoid ABCD.

asked by Robert on December 8, 2013
10. same type of binomial theorem question

Question: Find the first 3 terms in the expansion, in ascending powers of x, of (2 + x)^6. Hence, obtain the coefficient of x^2 in the expansion of (2 + x - x^2)^6 I know the first part of the question, and the first 3 terms are (64 + 192x + 240x^2 + ...)

asked by nicholas on August 4, 2009
11. Geometry

Segment AD is perpendicular to the radius of circle (B) and the radius of circle (c). If radius BA=6in, segment AD=21in and radius CD=16in, find the length of BC to the nearest tenth of an inch.

asked by Ben on May 10, 2016
12. math

justify that15 is the sum of eachrow of a 3X3 magic square using the number 0-9. Find the sume of all the numbers. What is the of eachrow in a 4X4 magic square that uses the numbers 1-16.

asked by Mark on April 22, 2010
13. Physics

Find the tension in each of the two ropes supporting a hammock if the first one is at an angle of 19.4° above the horizontal and the second is at an angle of 35.3° above the horizontal. The person sleeping in the hammock (unconcerned about tensions and

asked by Tesia on July 7, 2015
14. physics

as light passes from air to water vi/vr=4/3 find the angle of incidence of a ray of light if the angle or refration is 25 degrees 40 minutes (i is the angle of incidence and r is the angle of refraction)

asked by merri on January 13, 2013
15. math

A candidate believes that 2/3 of the registered voters in his district will vote for him in the next election. If two registered voters are independently selected at random, find the probability that neither will vote for him in the next election.

asked by ALAINI on May 31, 2011
16. Math

The sum of John's age and twice of his son's age is 56. In 8 years time, the son's age will be half of john's age. Find there present ages. Right now I wrote down an equation x+2y=56 and not quite sure what to do next.

asked by Jonathan on October 31, 2009
17. science

a sphere A of mass 3.0kg moving at 8.0m/s collides with another sphere B of mass 5.0kg moving in opposite direction to A at 4.0m/s.find the velocities of the spheres immadiately after the impact if e=0.30

asked by yusuph on August 11, 2018
18. math

a 6 foot red casts a shadow that is 7 feet long. the shadow of a nearby tree is 42 feet long. slove a proportion to find the height of the tree

asked by andy on January 18, 2017
19. Z table

Suppose that the readings on the thermometers are normally distributed with a mean of 0∘ and a standard deviation of 1.00∘C. If 8% of the thermometers are rejected because they have readings that are too high, but all other thermometers are acceptable,

asked by Anonymous on September 25, 2015
20. maths

if a hollow sphere of internal and external diameter 4cm melted 8cm respectively melted into a cone of base diameter 8cm . find the height of cone

asked by priya on March 8, 2016
21. Basic Caluculus

f(x)=2x^3-x^2+1 [1,4]=interval Using the limit process, (once with right endpts, and the other with left entdpts.) find the area under the curve and above the x-axis on the given interval i got the area to be 107.5 for right endpts. (not sure if its right)

asked by Munni on May 29, 2011
22. geometry

round to the nearest tenth. a rectangular plot of land is 80 meters wide and 98 meters long. Find the length of the diagonal and if necessary, round to the nearest tenth.

asked by Ariana on September 1, 2013
23. Calculus

As an ice cube melts its surface area in decreasing at a rate of 6 cm^2 / sec. Find the rate at which the length of each side is decreasing at the moment when each side has length 2 cm.

asked by Daniel on December 11, 2015
24. MAT 116

A tugboat goes 180 miles upstream in 10 hours. The return trip downstream takes 5 hours. Find the speed of the tugboat without a current and the speed of the current.

asked by Samantha on November 11, 2012
25. Pre-Calculus

Rational Functions y = (x^2+7x-4)/(x-2) Since the degrees of both the numerator and denominator are the same, I would use the leading coefficient, and both the rational functions start with 1, so would the horizontal asymptote be 1? Also don't get how to

asked by Shreya on October 2, 2012
26. mathematics

the area of a rectangle is 175 and the length is 1 and a half times bigger than the width. find the width L x W = Area L = 1.5W 1.5W x W = 175 or 1.5W^2 = 175 W^2 = =116.666 making W = 10.80... and L = 16.20... 10.80... x 16.20... = 175

asked by ayinde on September 12, 2006
27. Algebra 2

The angular speed of a larger pulley wheel (radius=15cm) is 50 rev./min. Find the angular speed of the smaller wheel (radius=6cm).

asked by Mary on April 22, 2012
28. Probability

From a box containing 7 blue, 5 red, 3 green, and 9 yellow marbles, 2 are drawn one at a time without replacing the first marble before the second marble is drawn. Find the probability that one is blue and one is yellow.

asked by Amanda on May 2, 2012
29. math

Mercy must obtain an average mark of at least 85 to get an A grade in her mathematics examination,out of the four examinations she obtained 80,85 and 82 in the first three. Find the mark she must obtain on the fourth examination of to enable her get an A

asked by Glory on June 11, 2016
30. Math

The area of a rectangular garden is 110 square meters. The width is 6 meters loner than one-half of the length. Find the length and the width using area=lengthxwidth

asked by Amber on April 30, 2013
31. Algebra II

The future value of $6000 invested for 5 years at rate r, compounded annually, is given by S=6000(1+r)^5. Find the rate r, as a percent that gives a future value of$8415.31. Round to the nearest whole percent.

asked by Shay on July 7, 2011
32. Math radical form

Find the distance of the line segment whose endpoints are (5,7) and (-2,3) in simplest radical form. sqrt [(7-3)^2 + (5 -(-2))^2] = sqrt [16 + 49] = sqrt 65 That is the simplest form I can think of. sqrt means "square root of"

asked by sheka on August 11, 2007
33. algebra

a tugboat goes 160 miles upstream in 20 hours. The return trip downstream takes 10 hours. Find the speed of the tugboat without a current and the speed of the current.

asked by Math Girl on June 10, 2012
34. Physics

An 85 kg jogger is heading due east at a speed of 1.7 m/s. A 55 kg jogger is heading 40° north of east at a speed of 3.4 m/s. Find the magnitude and direction of the sum of momenta of the two joggers.

asked by Will on April 1, 2008
35. physics

An 85-kg jogger is heading due east at a speed of 2.0 m/s. A 55-kg jogger is heading 22° north of east at a speed of 2.7 m/s. Find the magnitude and direction of the sum of momenta of the two joggers.

asked by Anonymous on January 12, 2015
36. algebra

The formula for the area of a trapezoid is A = h(B + b) 2 . The area of the trapezoid truss in the illustration is 72 square feet. Find the height of the truss shown below if the shorter base is the same as the height.

asked by f on March 21, 2014
37. Algebra II

The future value of $6000 invested for 5 years at rate r, compounded annually, is given by S=6000(1+r)^5. Find the rate r, as a percent that gives a future value of$8415.31. Round to the nearest whole percent.

asked by Shay on July 7, 2011
38. math

Christie pilots her plane for 360 mi against a headwind in 33 hrs. The flight would take 22 hrs and 15 mins with a tailwind of the same speed. Find the headwind and the speed of the plane in still air.

asked by JULIA on October 16, 2016
39. math

A LAMP POST IS 10 FEET TALL AND CAST A SHADOW. THE DISTANCE FROM THE TOP OF THE LAMP POST TO THE TIP OF THE SHADOW IS 20 FEET. FIND THE ANGLE OF THE ELEVATION.

asked by BRANDI on August 12, 2014
40. statistics

I need to find the class midpoint, boundaries and class with for the following problem Tar Cigarette Filter Frequency 2-5 2 6-9 2 10-13 6 14-17 15 I did the midpoint and boundaries 3.5 5.5 7.5 9.5 11.5 13.5 15.5 17.5 But for the width I got an answer of

asked by ALFREDA on April 19, 2012
41. Algebra 2

The red spinner has six equal sectors labeled with numbers 1 through 6. The blue spinner has four equal sectors labeled with letters A, B, C, and D. Find the probability of spinning the two spinners and getting a 5 with a B?

asked by Megan on February 28, 2012
42. Chemistry-pH

Question: v cm3 of a 0.2 M HX solution and v cm3 of 0.1 M KOH solution is mixed.pH of the final solution is 5.3 1)Find ka of HX 2)Find the moles of NaOH and HCl should be added respectively,for the pH of 1dm3 of the solution to increase and decrease by 1

asked by Shenaya on May 31, 2017
43. physics

need help with the following question. if earth has a mass of 6.0*10^24 kg and a radius 6.4*10^6 m: a) find the change in gravitational potential energy of a meteorite of mass 150 kg as it moves from an infinite distance to the earth's surface. b) with

asked by rachel on September 24, 2011
44. Chemistry 11th

Solid ammonium nitrate breaks down into nitrogen, water vapor, and oxygen. If there was 300g of the solid and the reaction happened under STP find the total volume of the products. (translating words to eqns., balancing eqns., understanding what STP means)

asked by Reyna on June 1, 2010
45. Math

A very strong girl runs 200 miles east for several hours. After a brief rest she runs another 100 miles north. She stops for the night at a local bed and breakfast and the next morning walks 75 miles directly south-east. Find the magnitude and direction of

asked by Kevin on November 23, 2010
46. chemistry 2

A certain gas is present in a 11.0 $${\rm L}$$ cylinder at 1.0 $${\rm atm}$$ pressure. If the pressure is increased to 2.0 $${\rm atm}$$ , the volume of the gas decreases to 5.5 $${\rm L}$$ . Find the two constants $$k_{\rm i}$$, the initial value of

asked by Froyce on June 29, 2019
47. John Jay

Where can I find the correct meaning of the following terms: Stereotype, Gender group, Pluraism, Sociology, Minority group, Assimilation, Conflict perspective, Segregation, Ethnic group, Racism, Class Subordinate group, Social construction of race, Racial

asked by Stacey on March 26, 2008
48. physics

A 120 N child is in a swing that is attached to ropes 2.20 m long. Find the gravitational potential energy of the child-Earth system relative to the child's lowest position at the following times. (a) when the ropes are horizontal (b) when the ropes make a

asked by Katie on October 18, 2010
49. MATH

A company will need 65,000 in 6 years to add an addition. to meet this goal the company deposits money in an account today that pays 5% annual intrest compoundded quarterly. Find the amount that should be invested to total 65,000 in 6 years. the company

asked by mleya on November 28, 2014
50. Language Arts

What is the secret to reaching someone with words? Which of the poems—"Concrete Mixers," "The City Is So Big," or "Harlem Night Song"—best uses words to create a vision or an idea of the city for you? In a paragraph, state your opinion and support it

asked by CyberDarkness on February 17, 2016
51. math

A man who can swim at 5km/h in still water swims towards the east to cross arriver. If the river flows from north to south at the rate of 3km/h a) Calculate: i) The resultant speed ii) The drift b) If the width of the river is 30m, find the time taken, in

asked by kudu on February 21, 2015
52. physics

16)You are pushing a 55N lawnmower across the yard. Its handle makes a 55 degree angle with the ground. What force are you exerting on the handle? A)1 N B)67.1 N C)95.89 N D)3025 N I got C 17)Two men pull a 31 kg box with forces 9.7 N and 7.6 N in both

asked by Jon on April 1, 2008
53. Algebra

Scott set up a volleyball net in his backyard. one of the poles, which forms a right angle with the ground, is 6 feet high. To secure the pole, he attached a rope from the top of the pole to a stake 8 feet from the bottom of the pole. To the nearest tenth

asked by Ricky on June 11, 2014
54. physics

16)You are pushing a 55N lawnmower across the yard. Its handle makes a 55 degree angle with the ground. What force are you exerting on the handle? A)1 N B)67.1 N C)95.89 N D)3025 N I got C 17)Two men pull a 31 kg box with forces 9.7 N and 7.6 N in both

asked by Jon on April 1, 2008
55. Physics

Two large, parallel, conducting plates are 20 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 3.0 10-15 N acts on an electron placed anywhere between the two plates. (Neglect fringing.) a)

asked by Lex on April 27, 2013
56. Chemistry

Draw Lewis dot structures, including appropriate resonance forms, and assign formal charges to each of those structures, for the molecule urea, with chemical formula NH2CONH2. You should find at least 3 such structures, some of which will have formal

asked by Emma on October 25, 2009
57. Maths

Can you give me some help with this question im not sure how to even start in a reaction A to P the mass of A at any given time T is Mt and the rate of transformation of A at time T is prportional to Mt given that the original mass of A is 130g and that

asked by Amelia on November 28, 2009
58. Physics

A series of waves traveling at 200 m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a certain wave is ____ meters from a corresponding point 3 crests away. a. 0 b. 1.5 c 2.7 d 4 e 6 f 12 g 16 h 30,000 I have no clue

asked by Jael on November 14, 2010
59. science

what is a ph scale? what is a acid? what is alkalis? what acid and alkais can you find around the house? (put pictures to go with this). when u are giving an explanation of what ph scale, acid and alkalis mean plz be as clear as possibe, use understandable

asked by denessta on October 31, 2012
60. Calculus

A professional athlete signs a four-year contract in which the earnings can be modeled by c = 300,000 + 750,000t, where t represents the year. (a) Find the actual value of the athlete's contract. (b) Assuming an annual inflation rate of 4%, what is the

asked by Calculus Help on November 12, 2015
61. College Physics

The ball launcher in a pinball machine has a spring that has a force constant of 1.50 N/cm. The surface on which the ball moves is inclined a = 14.5o with respect to the horizontal. If the spring is initially compressed 4.70 cm, find the launching speed of

asked by Emily Shinavier on September 30, 2012
62. math

of 500 employees, 200 participate in a company's profit- sharing plan (P), 400 have major-medical insurance coverage (M). and 150 employees participate in both programs. Construct a Venn diagram and find out the probability that a randomly-selected

asked by marina on October 12, 2011
63. chemistry

I did a lab on pressure and depth today. This lab was to simply submerge a plastic tube into a large graduated cynlinder to find the relationship between the two. I found that as the depth increases, so does the pressure. One of the questions I'm stuck on

asked by CL on January 11, 2010
64. physics

a boy stands on a cliff overlooking a lake below. He throws a rock at an initial velocity of 8.0m/s,at an angle 25 degrees above the horizontal. The lake's surface is 4.5 m lower than the point the rock was released. Find the speed of the rock just before

asked by bec on November 7, 2011
65. computer Science

20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says â€œ'invalid specificationâ€. What does the error mean?â€ a. an attempt to overclock the primary drive has failed. b. The hard drives

asked by Steven on January 28, 2014
66. Algebra

A particle P of mass 2gms moves on the X-axis and is attracted towards origin O with a force numerically equal to 8x. If it is initially at rest at X = 10, find its position at any subsequent time assuming (a) no other force acts, (b) a damping force

asked by Vijaya on April 25, 2017
67. Trigonometry

I really need help with this trigonometry question.please any help is appreciated. 1.I have to draw the graph of y=cos x from 0deg to 360deg. 2.Be sure to show a table of vales similar to the this table. colum X l colum :y=sinx 0 l 0.00 pi/10 l 0.31 pi/5 l

asked by anon on March 7, 2011
68. Physics

A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.70 of her regular weight. 1).Calculate the magnitude of the acceleration of the elevator. Express your answer to two significant

asked by Alex on September 19, 2016
69. psychology

20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says â€œ'invalid specificationâ€. What does the error mean?â€ a. an attempt to overclock the primary drive has failed. b. The hard drives

asked by Steven on January 22, 2014

Can you give me some help with this question im not sure how to even start in a reaction A to P the mass of A at any given time T is Mt and the rate of transformation of A at time T is prportional to Mt given that the original mass of A is 130g and that

asked by Amelia on November 29, 2009
71. computer Science

20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says â€œ'invalid specificationâ€. What does the error mean?â€ a. an attempt to overclock the primary drive has failed. b. The hard drives

asked by Steven on January 22, 2014
72. English

I have to write a interpeting atory paper on Sunday in the Park in my texted book. My three reasons are: Reason 1: she sees everything that her father does and expects her husband to do the same. Reason 2: views on men in society Reason 3: men are the head

asked by Amanda on November 18, 2008
73. Geography

I'm doing a project on Kenya. Wanted to bring in some cookies for baked product from Kenya. Can't find any site anyone have a good easy receipe?

asked by Taunya on January 17, 2007
74. Physics

A skateboarder moving at 7.18 m/s along a horizontal section of a track that is slanted upward by 48.5 ° above the horizontal at its end, which is 0.741 m above the ground. When she leaves the track, she follows the characteristic path of projectile

asked by Zac on October 16, 2014
75. calculus

im not good in math. The Grand Canyon is 1600 meters deep at its deepest point; a rock is dropped from the rim above this point. Express the height of the rock as a function of the time t in seconds. How long will it tale the rock to hit the canyon floor?

asked by marlyn on December 5, 2009
76. Chemistry

I'm doing a redox potential/lead acid cell experiment and one of the questions that were asked was: -What were the identities of the gases you saw being produced at the + and - electrodes during the cell conditioning process? We used H2SO4 How do I go

asked by Albert on December 3, 2014
77. English

We are doing this group project where we have to teach the class our vocab words. My job for the project is to make big flashcards with pictures of the words on it. One of the words is vignette, and I have no idea what picture to use, the definition is

asked by Emily on February 10, 2010
78. Finite Math

Find the amortization table for a \$13,000 loan amortized in five annual payments if the interest rate is 8.1% per year compounded annually. (Round your answers to the nearest cent.) End of Period Payment Payment Toward Interest Payment Toward Principal

asked by Micaela on December 6, 2018
79. health care

Health care is evolving and facing increasing challenges related to reimbursement, staff shortages, patient safety, increasing costs, and increasing regulatory requirements. As a health care leader, ehich leadership skills do you find most valuable when

asked by annoymous on February 3, 2010
80. Algebra 1A

find the decimal notation for fraction-7/13 the decimal notation for the fraction round to the nearest hundredth. help

asked by Lea on September 26, 2009
81. calculus

for the function f(x)=4x^2 +7, find the equation of the tangent line to the graph of f at x+1. if the equation of the tangent line is written as y=mx+b. m=? b=?

asked by Jenny on September 28, 2010
82. math

An example of consecutive odd numbers is 23, 25, 27, and 29. Find the smallest of four consecutive odd numbers with a sum of 160.

asked by Carlos on February 27, 2018
83. School

Find the measure of two complementary angles if the measure of one angle is 5/8 the measure of the other. What is the measure of the larger angle? and the samller

asked by Ji on March 13, 2018
84. Econ check my work

Is there any way or formula to find SSE with using SSR and SST? because i only have data for my ssr and sst and I need to know my sse or mse?

asked by Anonymous on March 14, 2018
85. Math

If a student's percentile rank in a class of 400 students is 87, how do I find the student's class rank.

asked by David on February 26, 2011
86. MA 005

The width of a rectangle is 3ft. less than the length. The perimeter is 62ft. Find the length and the width od the rectangle.

asked by Mark on February 12, 2010
87. Maths

A bag contains 18 balls out of which x balls are red balls will be 9/8 times the probability of not drawing red balls. Find value of x .

asked by Dewanshi on October 1, 2017
88. geometry

the perimeter of a rectangle is 46 feet. The width is 3ft less than twice the length. find the length and width of the rectangle

asked by Anonymous on September 21, 2011
89. Math

Find y'(x) when cos y - y^2 = 8 a) -siny - 2y b) - (1/sin y - 2y) c) 0 d) - (8/cos y - y) So if I implicitly differentiate: y'(x) = -sin(y) - 2y y' = 0 Am I right to say that there's nothing more you can do to this and pick C? y' = 0 / (-siny - 2y) So

asked by Donna on May 19, 2008
90. Math

Shantanu's age is 3 years more than Tanya's age.The sum of their ages is 27 years.Find their ages.

asked by Anjali on January 17, 2017
91. math

find the permutations one person select 4 books, 2 cds, 1 dvd from 10 books, 20 cds, and 5 dvd

asked by ashford on October 14, 2012
92. math

Enzo is 7 years younger than Ezra.Five years later,Ezra will be twice as old as Enzo.Find their present ages

asked by bea on January 16, 2017
93. Math

The length of the side QR of a triangle PQR is 14.5cm

asked by Joyce on January 15, 2015
94. Science

Types of constructive forces? I'm doing a project, and can't find types of constructive forces. Please include links.

asked by Ryan on January 16, 2019
95. algebra 1

In a triangle ABC,angle b is 4 times angle "A" and angle "C" IS 17 less than 5 times angle "A". Find the size of the angles.

asked by esther on December 16, 2010
96. math

the ages of a son and father are in the ratio 3:8. if the son is 35 years younger than his father. find their ages.

asked by joe on March 28, 2013
97. maths

In a class of 50 students 25 take hindi and 16 take marathi.12 students take no languages. Find how many takes both hindi and marathi.

asked by kumar on November 30, 2018
98. Algebra

The sum of two numbers is 9. Four times the larger number plus three times the smaller number is 48. Find the numbers. Thank you

asked by Pam on August 12, 2014
99. calc rates

the radius, r, of a circle is growing at a rate of 3 cm/s. Find the rate of change of the area of the circle when the radius is 5 cm

asked by Anonymous on April 14, 2015
100. math

area of a triangle is equal of the area of a square of side 60 m. Find the side of the triangle whose corresponding altitude is 90 m.

asked by prabhpreet singh on March 2, 2011