# 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

92,404 questions, page 687
1. ## Math

What is 5/8 + 4/7 -1 ? I can't understand this math problem.... Please help me.... ------------------ Problem: In a boys' school, 5/8 of the boys play football and 4/7 play rugby. If every boy plays at least one of the two games, find the fraction of the

asked by bobpursley on July 6, 2007
2. ## Physics

Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s^2, find the magnitude of the acceleration of the boy toward the girl.

asked by Sasha on January 3, 2010
3. ## math

If there is a bench at first and every fourth sign after that.there is water at seconed sign and fifth after that. at which sign can i find both bench and water. my answer is i subtract 4-1=3 and i subtract5-2=3 i added 3+3=6,so ami correct to say that

asked by Keisha on March 20, 2011
4. ## Probability 2

Between 11 P.M. and midnight on Thursday night, Mystery Pizza gets an average of 4.2 telephone orders per hour. Find the probability that, a. at least 30 minutes will elapse before the next telephone order b. less than 15 minutes will elapse c. between 15

asked by Janice on November 2, 2009
5. ## physics

A car travels a distance of 100m per second with a constant acceleration and average velocity of 20m per second .The final velocity acquired by the car is 25m per second .Find The initial velocity and acceleration of car

asked by Anonymous on July 2, 2013
6. ## Ap chemistry

15 ml of .325 M NaOH is delivered into a 35 ml HObr solution of unknown concentration.The pH of the final solution is measured to be 7.48.Ka for HOBr is 2.0 * 10^-9 at 25C. Find the number of moles of OBr- and HOBr in the final solution

asked by Jdawg on February 18, 2012
7. ## Math

The resistance of the motionof a vechincle is partly constant and partly constant and partly varies to the square of its speed.At 30km/h the resistance is 496, and at 50km/h is 656N.Find the resistance at 60km/h

8. ## Algebra 2

Use Cramer's rule to find the number of items the company must sell each week to break even. y= 20x + 200 y= 25x D= |20 -1|. -20 - (-25) . |25 -1| D= 5 Dx= |200 -1|. -200 - 0 . |0 -1| Dx= -200 Dy= |20 200|. 0 - 5000 . |25 0 | Dy= -5000 x= Dx/D x= -200/5 x=

asked by Jacqueline on October 29, 2014
9. ## physics

Suppose a 65-kg boy and a 45-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.

asked by Liz on October 28, 2009
10. ## electrical

A 20v battery with an internal resistance of 5ohm is connected to a resistance of x ohm if an additional 6ohm resistance is connected across the battery find the value of x so that the power supplied externally by the battery remains the same

asked by Anonymous on March 6, 2017

Find the value fir each expression. Show your work. (13.28 - 7.8) divided by 4. I have the answer in the back of my book and when I try to work the problem out I keep getting the wrong answer. The answer is supposed to be 1.345 I can get the 1.34 but I get

12. ## physics

A car travels a distance of 100m per second with a constant acceleration and average velocity of 20m per second .The final velocity acquired by the car is 25m per second .Find The initial velocity and acceleration of car

asked by Anonymous on July 2, 2013
13. ## physics

Suppose a 64-kg boy and a 49-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.

asked by Anonymous on June 10, 2010
14. ## Math

The distance covered by a moving particle through point O is given by the equation, s = t^3- 15t^2+ 63t -10. Find: (a) distance covered when t = 2 (b) the distance covered during the 3rd second; (c) the time when the particle is momentarily at rest; (d)

asked by Kd on May 9, 2019
15. ## trigonometry

A guy wire from the top of a telephone post touches the ground at a point 7 meters from the foot of the post. If the wire and the post make an angle of 56°40', find the length of the guy wire.

asked by maniru on January 11, 2015
16. ## Maths

A flay pole is placed at the top of a tower.the angle of elevation of the bottom and top of the flay pole from a point on the ground 10M away and 40 degrees and 50degrees respectively.find the length of the flay pole.

asked by Patrick on March 6, 2016
17. ## math

A printer knows that a page of print contains 1273 words if large type is used and 1773 words if small type is used. A document containing 16521 words fills exactly 10 pages. Find how many pages are in each type.

asked by Anonymous on November 28, 2013
18. ## physics

A car travels a distance of 100m per second with a constant acceleration and average velocity of 20m per second .The final velocity acquired by the car is 25m per second .Find The initial velocity and acceleration of car

asked by Anonymous on July 2, 2013
19. ## Physics

Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.

asked by Sasha on January 5, 2010
20. ## English and Language Arts

Which of the following would you find in the new English and Language Arts curriculum guidelines? A: An oral language program only at the primary grades B: A phonics program at all grades C: A writing program at all grades D: A study of core literacy works

asked by Bree on April 28, 2015
21. ## Calculus

A solid has as its base a circular region in the xy plane bounded by the graph of x^2 + y^2 = 4. Find the volume of a solid if every cross section by a plane perpendicular to the x-axis is an isosceles triangle with base on the xy plane and altitude equal

asked by Denise on September 11, 2010
22. ## Statistics

Assume a population of any 4 numbers(suppose: 4,8,15,19). Select a random sample of size 2 with replacement from the population. List all the possible samples and their corresponding values of x̄ “x-bar” and then find the probability distribution of

asked by Ali on November 16, 2010
23. ## physics

The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 6.60 m, measured from its tip to the center of the circle. Find the ratio of the centripetal acceleration at the end of the blade to that which exists at a point

asked by Cassandra on February 28, 2012
24. ## Maths urgent help needed!

A rectangular tank measures 60cm by 40cm by 30cm. It is half filled with water. Water is added to the tank at a rate of 13litres per minute and drained out at 9litres per minute. Find the volume of water in the tank after 7 minutes.

asked by joi on October 23, 2011
25. ## Algebra

Mattie Evans drove 300 miles in the same amount of time that it took a turbo propeller plane to travel 1300 miles. The speed of the plane was 200 mph faster than the speed of the car.Find the speed of the plane.

asked by Roxy on February 25, 2013
26. ## statistics

the breaking distance of a Honda CRV can be approximated by a normal distribution, where the mean is 53 meters and the standard deviation is 3.8 meters. Let x be a random variable that represents a braking distance. Find the probability that a randomly

asked by katie on February 25, 2013
27. ## calculus

A rectangular box is to be constructed from two different materials. The box will have a square base and open top. The material for the bottom costs $4.25/m2. The material for the sides costs$2.50/m2. Find the dimensions of the box with the largest volume

asked by j on April 9, 2011
28. ## Physics

The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 6.7m, measured from its tip to the center of the circle. Find the ratio of the centripetal acceleration at the end of the blade to that which exists at a point

asked by Natasha on February 18, 2012
29. ## Maths

A water tank has the shape of a rectangular prism of base 50 cm2. This tank is being filled at the rate of 12 liters per minutes. Find the rate at which the height of the water in the water tank increases; express your answer in millimeters per second. I

asked by Elise on July 14, 2015
30. ## math

Romy invested $5,000 into an account that pays 5% compound semi-annually. He intended to keep the account untouched for five years. However, after three years he had to withdraw$3,000. Find the amount left in the account five years from the time he made

asked by Lula on May 5, 2018
31. ## chemisrty

A solid acid is dissolved in enough water to make 200 ml of a solution. 40.0ml of the solution is titrated to a phenolphthalein en point with an NaOH solution. The neutralized solution and the remainder of the acid solution are then mixed and the PH of the

asked by Aria on April 16, 2014
32. ## physics

The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 6.07 m, measured from its tip to the center of the circle. Find the ratio of the centripetal acceleration at the end of the blade to that which exists at a point

asked by heather on February 23, 2011
33. ## fnu

The length of country and western songs is normally distributed and has a mean of 200 seconds and a standard deviation of 30 seconds. Find the probability that a random selection of 9 songs will have mean length of 186.30 seconds or less. Assume the

asked by giovanny on June 10, 2014

53. ## physics

A bat flying in a cave emits a sound and receives its echo 0.5 s later. How far away is the cave wall? I answered this below. If you cant find it, search on bat flying in the search window above.

asked by Barry on November 5, 2006
54. ## 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
55. ## 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
56. ## algebra

Marcel brought in 40 cookies to share equally with his classmates. Let t represent the number of classmates Marcel has. Which expression could be used to find the number of cookies each classmate received?

asked by kinley on December 14, 2018
57. ## 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
58. ## English

What is the meter of the following line from “A Sybil” by Rilke? “Her age became too much to say” Im confused and cant find an answer. Iambic pentameter Iambic tetrameter Trochaic pentameter Trochaic tetrameter

asked by Anonymous on December 15, 2014
59. ## Math

The perimeter of a rectangle is 110 inches. The length exceeds the width by 41 inches. Find the length and the width. I can't seem to figure out this last question. Don;t know where to start. Please help it is my last question.

asked by Flossie on August 29, 2010
60. ## 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
61. ## Calculus,reaction rates

A car starting at 12:00 noon travels west at a speed of 30 kph. Another car starting from the same point at 2:00 PM travels north at 45 kph. Find how fast the two are separating at 4:00 PM?

asked by @jayr on November 30, 2014
62. ## Geometry

One hundred tiles of a certain size are needed to pave a floor. If a tile, which measures 4 cm less on each side, will be used, 225 tiles will be needed. Find the size of the larger tile.

asked by Ivyl on August 2, 2011
63. ## math

find the standard deviation for the given data. Round your answer to one more decimal place than original data. (9,7,13,24,32,45,47) I get 16.62041 but how do I round my answer to one or more decimal places? I am a little lost.

asked by Marie on November 19, 2009
64. ## Algebra

A tugboat goes 160 miles up stream in 20 hours, return trip downstream takes 5 hours. Find speed of tugboat without the current and the speed of the current

asked by Ruth on March 6, 2013
65. ## algebra

Find all rational zeros of the polynomial function P(x)=x^4 + 2 x^3 - 13 x^2 + 4 x - 30. Enter the rational zeros in a comma separated list. If there are none, enter "none". -3| 1 2 -13 4 -30 -3 15 -6 30 1 -5 2 -10 0 so (x+3)(x^3-5x^2+2x-10 so 5| 1 -5 2

asked by kim on June 23, 2015
66. ## Calculus

Assume that a demand equation is given by q=9000-100p. Find the marginal revenue for the given production levels. a. 500 Units the marginal revenue at 500 units is

asked by Duane on November 1, 2014
67. ## 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
68. ## algebra

The angle of elevation from the tip of the shadow to the top of the tree is 36°. Find the distance from the top of the tree to the tip of the shadow. Round the answer to the nearest tenth.

asked by Bob on March 30, 2015
69. ## calculus

A force of 10 pounds is applied to a wagon, directed at an angle of 30∘30∘. Find the component of this force pulling the wagon straight up, and the component pulling it horizontally along the ground.

asked by andre on August 14, 2016
70. ## 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
71. ## Math,algebra

ann is 20 years older than her daughter faye. three years from now she will be six times as old as her daughter. find their present ages. This is my work: ( i'm not sure if it's correct ) Now 3 yrs from now Ann A A+3 Faye 6A 6A+3 7a+21 = 6A+3 -6A -6A

asked by Ellofrmdaodersyde on February 15, 2016
72. ## math

there are 30 marbles in a bag; 4 blue, 10 red,6 white, 10 yellow. You randomly draw5 marbles without replacement. Find the percent of drawing 2 red marbles and at least 2 white marbles.

asked by em on May 23, 2014
73. ## 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

The number of square meters in a square rooms floor area exceed the number of meters in the rooms perimeter by 60.Find the side-length of the room.

asked by Jane on April 18, 2016
75. ## history

For the quote "Remember the Maine" I went on a lot of websites and most of the websites said that "remember the Maine" was said by Americans. I can't seem to find what the meaning of the quote was. Did people say it when they wanted to go to war with

asked by Amy~ on August 28, 2010
76. ## 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
77. ## Math

Under ideal​ conditions, a population of rabbits has an exponential growth rate of 11.8​% per day. Consider an initial population of 300 rabbits. Find the exponential growth function.

asked by Sarah on December 6, 2016
78. ## 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

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
80. ## Math

A walkway is formed by four semi circles. The diameter of the inner semi circles is 14 feet. The width between the outer and inner semicircles is 2 feet. Find the area of the walkway. Use 3.14 as an approximation for pi.

asked by Eiyannah on June 9, 2015
81. ## math

In an election among three contestant P,Q and R. P gets 120% more votes than Q. P beats R by 350000 votes. Q beats R by 5% of the total votes. Find the total number of votes polled (in lakhs) How to do easy way

asked by vipul on June 27, 2016
82. ## 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
83. ## 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
84. ## Math

A box contains 3 red marbles, 6 blue marbles, and 1 white marble. The marble are selected at random, one at a time, and are not replaced. Find the probability. P(blue and red) Please help me

asked by Lisa on February 2, 2012
85. ## Stat

Of 84 adults selected randomly from one town, 62 have health insurance. Find a 90% confidence interval for the true proportion of all adults in the town who have health insurance. Please help mr solve.

asked by Billy on October 1, 2014
86. ## 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
87. ## geometry

for that some problem: A board that is 12 feet long must be cut into 2 pieces that have lengths in a ratio of 3 to 2. Find the lengths of the two pieces. arn't you solving two parts because the board was cut in two?

asked by shannon on February 27, 2011
88. ## Algebra

An object is dropped from a bridge. Find the distance the object has fallen when its speed reaches 132 ft/s. Use the equation v = 64d , where v is the speed in feet per second and d is the distance in feet.

asked by Irma on July 6, 2016
89. ## Pre calc

Thanks in advance for any help. I need help with this whole problem. The distance s(t) between an object and its starting point is given by the antiderivative of the velocity function v(t). Find the distance between the object and its starting point after

asked by Peter on May 14, 2008
90. ## Maths

A and B are two balloons at the same height and 1000 metre apart. O is a ground observation position. Angle AOX is 45 degree 15' and angle BOX is 10 degree and 30'. Find the height of the balloons.

asked by Shane on April 29, 2013
91. ## Algebra

From a group of 6 men and 4 women, a committee of 3 is to be selected at random. Find P(at least 2 women). It might be a little out of order but this is what I got. C(10,2) (10*9*8*7*6*5*4*3*2*1)/(8*7*6*5*4*3*2*1*2*1) =45 C(6,2) (6*5*4*3*2*1)/(2*1) =360

asked by Jon on March 5, 2008
92. ## math

a basketball hoop is 120 inches above the court. a player is 62 inches tall. find the approximate distance between th top of the player's head and the basketball hoop.

asked by shron on December 10, 2012
93. ## 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
94. ## 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
95. ## Math

Can someone tell me how to start to solve this A bag contains 4 white, 3 blue, and 5 red marbles. 1. Find the probability of choosing a red marble, then a white marble if the marbles are replaced. A. 1/12 B. 5/36 C. 5/6 D. 5/12

asked by Katie on February 27, 2019
96. ## college alg

Find (a) the equation of a line that is parallel to the given line and includes the given point, and (b) the equation of a line that is perpendicular to the given line through the given point. Write both answers in slope-intercept form. y = -4x + 2, (5, 4)

asked by sunny on January 4, 2012
97. ## algebra

The value of a certain two-digit number is eight times he sum of its digits. if the digits of the number are reversed the result is 45 less than the original number. find the original number. **please show both equations and work... thanks =)

asked by Bri on February 28, 2011
98. ## math

bob has a container with a capacity of 12 quarts. he wants to express this capacity in gallons. write a proportion to find the number of gallons of water bob's container can hold.

asked by pavleen on February 10, 2011
99. ## 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
100. ## Mensuration

A sheet of paper measures 30cm by 20cm. A strip 4cm wide is cut from it all around. Find the area of the remaining sheet and also the area of the strip cut out.

asked by Sunil on February 24, 2016