# 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 691
1. ## College Physic

Can some one please help me with this question? An iron bolt of mass 121.1 g hangs from a string 1.2 m long. The top end of the string is fixed. Without touching it, a magnet attracts the bolt so that it remains stationary, but is displaced horizontally

asked by Hieu Chu on September 25, 2012
2. ## help me maths anyone

A vertical radio mast is supported by 3 equal wires.One end of each wire is fixed to the top of the mast and the other ends form an equilateral triangle on horizontal ground.If the length of each wire is twice the height of the mast,find the angle btw any

asked by feliz on June 1, 2017
3. ## University studies

According to the Center for Mathematics Excellence, which of the following is a math myth? A. Knowing the rules and how to use them is the most important part of math. B. Even people who are highly skilled in mathematics and science find these subjects to

asked by lil Bee on November 3, 2011
4. ## Physics

In an experiment done by scattering 5.5 MeV α particles on a thin gold foil, students find that 10,000 α particles are scattered at an angle greater than 90 degrees. How many α particles will be scattered between 60 degrees and 80 degrees?

asked by Sarah on September 30, 2014
5. ## 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

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

7. ## physics

Suppose a 69-kg boy and a 42-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 sarah on August 30, 2014
8. ## 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
9. ## 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
10. ## 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
11. ## physics

An elevator is initially moving upward at a speed of 12.84 m/s. The elevator experiences a constant downward acceleration of magnitude 3.80 m/s2 for 3.18 s. (a) Find the magnitude and direction of the elevator's final velocity. magnitude: direction:

asked by Nour on September 13, 2011
12. ## Physics

An object experiences a constant acceleration of 4.0 m/s2 along the −x axis for 4s, obtaining a velocity of 31 m/s in a direction 30° from the +x axis. Find the initial velocity vector of the object. (The angle of the object is measured counterclockwise

asked by Daniel on February 23, 2015
13. ## 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
14. ## 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
15. ## 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
16. ## 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
17. ## 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
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. ## 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
20. ## Physics

An electron is acted upon by a force of 7.00×10−15 N due to an electric field. Find the acceleration this force produces in each case: The electron's speed is 1.00 km/s . a=??m/s2 The electron's speed is 2.50×108 m/s and the force is parallel to the

asked by SAM on October 26, 2017
21. ## Geometry Part 2

A forest ranger spots a fire from a 28- foot tower.The angle of depression from the tower to the fire is 11.To the nearest foot,how far is the fire from the base of the tower?Show the steps you use to find the solution.

asked by Karen on April 15, 2013
22. ## 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
23. ## 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
24. ## 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
25. ## 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
26. ## Chemistry

In a given 1st order reaction A ---> products, the initial concentration of A is 0.40 M. What will be the concentration of A after 15 seconds if the half-life of the reaction is 3 seconds? I found the concentration to be 1.25 x 10-2 M But then how do I

asked by Marcus on February 18, 2013
27. ## Statistics

Assume the heights of women are normally distributed with a mean given by 63.6 inches and a standard deviation given by 2.5 inches, the US Army requires women's height to be between 58 and 80 inches. Find the percentage of women meeting that height

asked by Anonymous on February 24, 2011
28. ## 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
29. ## 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

30. ## MAth

3/4 of the students in a school were girls and the rest were boys. 2/3 of the firls and 12 of the boys attended the school carnvial. Find the toalt number of students in the school if 330 students did not attend the carnival

asked by Anonymous on October 4, 2018
31. ## 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
32. ## 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
33. ## 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
34. ## 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
35. ## 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
36. ## 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
37. ## statistics

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 Anonymous on July 29, 2013
38. ## 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
39. ## 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
40. ## physics

The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 7.0 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 jyothi on February 16, 2015
41. ## 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
42. ## Physics Circular Motion

The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 7.0 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 Jayesh on February 20, 2015
43. ## 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
44. ## 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
45. ## math

Question 1 of 5 Multiple Choice The rate of change is constant in the table. Find the rate of change. Explain what the rate of change means for the situation. The table shows the cost of a ski rental package for a given number of people.

asked by yeeeeet on November 29, 2018
46. ## 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
47. ## 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

Let P0 = $1000.00. • k = 0.5% = _____0.005______ as a decimal. Compute and explain how to find the doubling time. Then, write the compound interest equation for this value of k and the 3 values for t. Number of years Equation New Value 1 asked by Brittany on June 28, 2016 49. ## 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 50. ## 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 51. ## essay cont.: mrs. sue The next step for a student to do is to take all of the information he or she learned in the class, and apply it to his or her future. For example, when one buys a house in the future, it is necessary to take out a loan. To do this, one has to consider asked by julie on November 28, 2007 52. ## 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 53. ## 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 54. ## 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 55. ## 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 56. ## Calculus Find the limit lim as x approaches (pi/2) e^(tanx) I have the answer to be zero: t = tanx lim as t approaches negative infi e^t = 0 Why is tan (pi/2) approaching negative infinity is my question? asked by NY-Calc on March 23, 2011 57. ## 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 58. ## 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 59. ## Law of Sines In Triangle ABC, a=15cm, c=9cm, and angle C= 35 degrees. Find b and angle b. (Recall sin theta= sin (180 degrees-theta). I'm not sure how to approach this. asked by Richard on September 6, 2014 60. ## Statistics A car rental agency currently has 41 cars available, 28 of which have a GPS navigation system. Two cars are selected at random from these 41 cars. Find the probability that both of these cars have GPS navigation systems asked by Anonymous on March 22, 2013 61. ## Math A multiple - choice quiz contains 5 questions with 4 choices for each answer. A student passes the quiz if they get at least an 80% on the quiz . If a student guesses on every question , find the probability that she passes the quiz . I have tried asked by Kaela on February 28, 2015 62. ## Math Your school's football team scored 49 points. Your team's scored 19 points more than the opponent's scores. Write and solve an equation to find the opponent's score asked by Izamae on September 12, 2016 63. ## Math 142 (Pre-Cal) (Circles) A wheel spins through 29 revolutions per minute. Find the angular velocity and the linear velocity if the radius of the wheel is 1.8 feet. w=? (rad/min) v=? (feet/min) asked by Ray on March 31, 2016 64. ## Calculus derivative find the slope m and an equation of the tangent line to the graph of the function f at the specified point. original: x^2/x+10 point: (3,9/13) After I found the derivative: (x+10)(2x)-(x^2)(1)/((x+10))^2 How do I get the slope? Should I put 3 into the asked by Eve on September 17, 2013 65. ## physics Silicon is doped an acceptor of 10^18/cm^3. Find the electron and hole concentration, the electron and hole mobilities, and the resistivity of this silicon material at 300 K. Is this n-type or p-type? asked by Alex on April 10, 2011 66. ## stats 2. The average age of a child in kindergarten is 66 months. The standard deviation is 4 months. If a random child is selected, find the probability that the mean age is: a) Between 64 and 68 months b) Greater than 62 months asked by AMbe on August 4, 2012 67. ## mathematics the lenght of a rectangle is twice its width.If the width is reduced by 1cm and the lenght is also reduced by 2cm,the area will be 15cm(square).Find the dimensions of the original rectangle. asked by john on October 26, 2014 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. ## 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 70. ## calculus A spherical snowball is placed in the sun. The snowball melts so that it's surface area decreases at a rate of 2 cm2 /min. Find the rate at which the diameter decreases when the diameter is 8 cm asked by Jocelyn on October 24, 2014 71. ## physics a rock is thrown vertically down from a bridge with an initial velocity of 30m/s and strikes the water in 2.0sec. find the velocity with which the rock strikes and the height of the bridge. asked by roger on June 20, 2014 72. ## 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 73. ## Statistics Suppose that 92% of all SFSU students own a cell phone. Find the probability that 7 out of 10 random selected SFSU students own a cell phone. explain how answer was arrived asked by Mitch on February 24, 2011 74. ## Math The bearing of point Y from a point X is 048°. If Y is 115km away from point X and the bearing of point Z from Y is 120° at a distance of 75km. Find the distance between X and Z, using a scale of 1cm to represent 20km asked by Bau on June 18, 2018 75. ## 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 76. ## geometry A segment 12" long is divided into two segments having lengths in the ratio of 2:3. Find the length of each segment. (Hint: Let 2x and 3x represent the length of the parts.) x = ? segment 1 = (2x) = ? inches segment 2 = (3x) = ? inches asked by terri on March 9, 2011 77. ## Calc A spherical snowball is placed in the sun. The snowball melts so that it's surface area decreases at a rate of 2 cm2 /min. Find the rate at which the diameter decreases when the diameter is 8 cm. asked by Jocelyn on October 24, 2014 78. ## Pre Calculus Let$\bold{w} = \begin{pmatrix} 2 \\ -1 \end{pmatrix}$. There exists a$2 \times 2$matrix$\bold{P}$such that $\text{proj}_{\bold{w}} \bold{v} = \bold{P} \bold{v}$ for all 2-dimensional vectors$\bold{v}$. Find$\bold{P}\$.

asked by Bob on September 20, 2017
79. ## 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
80. ## Math--help help help

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
81. ## Science

I need to find out if sucrose, sucrose solution, sodium chloride, sodium chloride solution, water, vinegar, and aluminum are electrolytes and what type of bond they are but I don't know where to look.

asked by Anonymous on December 20, 2009
82. ## physics

Two objects (41.0 and 20.8 kg) are connected by a massless string that passes over a massless, frictionless pulley. The pulley hangs from the ceiling. Find the acceleration of the objects and the tension in the string.

asked by Anonymous on October 7, 2011
83. ## math

the distance between two stations is 300km. two trains start simultaneously from these stations and move towards each other ,the speed of one them is 7k/hr more than the other . if the distance between them after 2hours of their start is 34km ,find the

asked by TUHITUHI on October 7, 2012
84. ## math

A tugboat goes upstream 120 miles in 20 hours. The return trip downstream takes 10 hours. Find the speed of the tugboat without the current and the speed of the current.

asked by Lori on August 1, 2012
85. ## 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
86. ## precalculus

The question is...find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s. Then it gives the radius r of 27 inches and an arc length s of 6 inches. How do I do that?

asked by Megan on February 28, 2010
87. ## algebra

Diagonal brace. The width of a rectangular gate is 2 meters (m) larger than its height. The diagonal brace measures square root of 6. Find the width and height.

asked by Simone on August 24, 2010
88. ## 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
89. ## Math

A certain triangle has a perimeter of 3080 mi. The shortest side measures 71 mi less than the middle​ side, and the longest side measures 373 mi more than the middle side. Find the lengths of the three sides.

asked by Jess on September 6, 2018

A rectangular classroom seats 252 students. If the seats were rearranged with three more seats in each row, the classroom would have two fewer rows. Find the original number of seats in each row.

91. ## maths need help word problem

A number is made up of two digits whose sum is 9. If this number is now divided into the number made up of the same digits but in reverse order the result is six-fifths. Find the number? Step plz

asked by help on November 15, 2016
92. ## math

Lareina understands factors, but sometimes she has trouble finding all the factors of a number. What advice would you give to help her find all the factors of a number? Demonstrate by finding all the factors of 110. I NEED HELPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!

93. ## Precalculus

The graph of the parametric equations x=cos(t), y=sin(t) meets the graph of the parametric equations x=2+4cos(s), y=3+4sin(s), at two points. Find the slope of the line between these two points.

asked by Phil on April 9, 2016
94. ## 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
95. ## math

The radius of circle is given as 2.8 cm to 2 significant figure (a) If C is the circumference of the circle, determine the limits between which C/π lies. (b) By taking π be 3.14; find to 4 significant figures the line between which the circumference lies

asked by John on February 9, 2015
96. ## Physics

Charge A, +1 μC, is positioned at the origin of a coordinate system as shown below. Charge B, −1 μC, is fixed at x = 3 m. (a) Find the electric field on the x axis at x = 6 cm. (b) At what point on the x axis is the electric field zero?

asked by Alyssa on January 29, 2016
97. ## 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
98. ## Trigonometry

Suppose *u* is a quadrant IV angle with cos(u) = 3/5. Suppose *v* is a quadrant IV angle with cos(v) = 12/13. Find the exact value of sin(u-v) I have gotten to sin120cos150 - sin150cos120 but I am not sure I am correct up to that point and I don't know

asked by Lydia on April 17, 2016
99. ## 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
100. ## 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