1. Hyperbolas, comic sections

    So I have this equation: 36x^2-121y^2=49 Which I rearranged to 36x^2/49-121y^2/49=1 So I want to go from here and find the eccentricity,foci,asymptotes etc... But I'm getting myself confused. Since my equation is of the form x^2/a^2-y^2/b^2=1 Both a and b

    asked by Mrbob on December 4, 2016
  2. Algebra

    Thank you drwls. I was not reading my own question clearly. I am trying to make the equation true for an object that is 100 pounds at sea level. Find the vlaue of C that makes the equation true. wouldn't C, being the contant, be where I put my 100 pounds?

    asked by Marysvoice on February 1, 2008
  3. calculus

    there are no examples of this type of problem in my book so if you could help walk me through it - that would be extremely helpful. thanks ahead of time. Find the extreme values of the function on the interval and where they occur. 4) F(x)=³√(x); -3

    asked by K.T. on December 15, 2014
  4. math

    If the adjacent vertices of a square ABCD are A ( -2 , 0 ) , find - The equation of the two diagonals AC and BD - The point of intersection O of the two diagonals AC and BD - The equation of the altitude from O to the side CD - The centroid of the triangle

    asked by Nora on December 27, 2011
  5. Math 12

    A tree growing on a slope of 13 degree to the horizontal is 14m tall. Find the length of the shadow it casts up the hill when the sun is at an angle of elevation of 30 degree. (The shadow is cast directly up the slope by the sun)

    asked by Jim on March 19, 2013
  6. Maths

    A hand fan is made by stitching 6 equal size triangular strips of two different types. The dimensions of equal strips are 25cm, 25 cm and 14 cm.Find the area of each type of paper needed to make the hand fan.

    asked by Neha on June 18, 2015
  7. math

    Laurel appears at Comedy Cafe at a random time between 1:00 and 2:00. Hardy turns up at a random time between 2:00 and 2:30. The probability that Laurel waits for no more than 40 minutes for Hardy can be expressed in the form m/n, where m and n are

    asked by sadness on February 9, 2018
  8. PHYSICS FORCE

    A car moving at a speed of 48.0 km/h accelerates 100.0 m up a steep hill, so that at the top of the hill its sped is 59.0 km/h. if the car's mass is 1100 kg, what is the magnitude of the net force acting on it? i already know you have to change it to m/s

    asked by lalaglaze on October 21, 2009
  9. Physics

    Two bodies begin to fall freely from the same height but 2nd one falls T seconds ater 1st.The time(after which the 1st body begin to fall) when the diatance between them is L is: Options 1.T/2 2.T/2+L/gT 3.L/gT 4.T+2L/gT I am not understanding how to find

    asked by Rohan on July 15, 2016
  10. math

    mary deposited dimes and quarters into the coinstar machine at her local grocery store. the total money she deposited was 22.15. if mary had 84 dimes, write and solved a linear equation to find the number of quarters she had

    asked by Arif on January 19, 2014
  11. PHYSICS - formula?

    Here is one of my questions from my physics study. It tells me the answer (35 J), but how do I find that answer? I would appreciate a formula or step by step calculation. Thanks! :) A 30 kg kid on rollerskates is moving 1 m/s. His brother pushes him with a

    asked by Anna on March 26, 2013
  12. physics

    While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 245 m east, 210 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.

    asked by Blair on September 27, 2010
  13. Chemistry

    A 45.0 g piece of copper wire is heated. And the temperature of the wire changes from 21.0 degrees C to 88.0 degrees C. The amount of heat absorbed is 280.6 cal. Find the specific heat of Copper. SHOW your work. Please help! I have no Idea where to start

    asked by Adam on May 17, 2016
  14. Chemistry

    Upon heating 8.5g sample of Sodium Sulfate hydrate, it loses 4.776 grams after heating. What steps are necessary for me to find the n for the hydrate? GIVEN: Na2SO4 - n H2O the molar mass of sodium sulfate is 142.05g/mol

    asked by Peytreshia on September 24, 2013
  15. Math

    K: 1) simplify: 1 - 1/2 + 1/4 - 1/8 + 1/16 - 1/32 2) Simplify: (1/2 - 1) - (1/3 - 1) + (1/4 -1) 3) In the proportion x^2 : 27 = 9 : x^3, what is x? 4) Between what two consecutive integers does cube root of -100 lie? 5) What is the area of a rectangle

    asked by K on February 5, 2017
  16. trig

    find the exact values of the six trig functions of the angle. -750 sin(-750)= cos(-750)= tan(-750)= csc(-750)= sec(-750)= cot(-750)= I've tried this question over and over again and i cannot get it right. i believe -750 is in the fourth quadrant but I'm

    asked by ALISON on September 6, 2011
  17. math

    1 atom of hydrogen has a mass of 2.6 x 10 power neg 21g.find the mass of 6000 atoms? 2.6 x 10 power neg 21 = 2.6 x 10^-21 6000 = .6 x 10^4 Multiply the two terms. When multiplying exponents, you add the powers. I hope this helps. Thanks for asking.

    asked by s on June 26, 2007
  18. Trig

    The angular speed of a point on a planet is 3pi/7 radian per hour. The equator lies on a circle of radius approximately 9000 miles. Find the linear​ velocity, in miles per​ hour, of a point on the equator.

    asked by Erin on June 2, 2018
  19. Accounting

    A baker makes 500 cream-filled eclairs at a cost of $0.72 each. He estimates that 10% of the eclairs will be sold the following day at a reduced price of $0.80 each. Find the marked price if the baker wishes to obtain a 75% markup on cost. A. $1.27 B.

    asked by Angela on January 22, 2014
  20. phoenix

    o Find a movie review in an online publication for a movie currently playing in theaters. Post the link to the review for the class and provide five examples of how the reviewer used adverbs and five examples of the use of adjectives. Has the reviewer used

    asked by david on January 25, 2011
  21. Math

    Use an addition or subtraction formula to write the expression as a trigonometric function of one number, and then find its exact value. (tan(π/2)+tan((2π)/3)) / (1-tan(π/2)tan((2π)/3)) Answer=__________ Exact value answer=_________ ~Thank you.. I

    asked by Shaun on November 15, 2010
  22. Chemistry

    The complex [Co(ox)3]4- has a high-spin electron configuration. How many unpaired electrons are there in the complex? I know because it's a high-spin, it's tetrahydral shaped. But I don't know what (ox) is so, I'm stuck in finding the oxidation state of Co

    asked by Sara on July 26, 2013
  23. Calculus 3

    Determine whether the lines intersect(have a common point) and if so, find the coordinates of that point? r(t) = < 4t+3, 4t + 2, 6t + 6>, for -infinity < t < infinity R(s) = < s + 2, 3s - 1, -4s + 10>, for -infinity < t < infinity And if r and R describe

    asked by Z32 on February 18, 2011
  24. physics

    While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 275 m east, 215 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.

    asked by vicky on September 20, 2010
  25. math

    Jose left the airport and traveled toward the mountains. Kayla left 2.1 hours later traveling 35mph faster in an effort to catch up to him. After 1.2 hours Kayla finally caught up. Find Jose's average speed/

    asked by Joe Joe on October 25, 2012
  26. Math

    an ice cream parlor is giving away free icecream sundaes on opening day. the sundaes are assembled randomly from 7 types of ice cream, 2 types of sauce, and 5 kinds of toppings. find the probabilty.

    asked by adam on March 7, 2014
  27. math

    the sample of selected men have the average weight of 180 lb with the standard deviation of 30 lb. For a 0.95 degree of confidence find confidence interval for the mean of the whole population, assuming the normal weight distribution and the following

    asked by VAL on August 13, 2013
  28. Applied Mathematics ( Mechanices

    A mass of 50 kg is moved vertically upwards by a rope. find the tension in the rope when: (a) the mass moves with constant velocity of 3ms-1 (b) the mass accelerates up wards at 5ms-2 (c) the mass accelerates downwards at 5 ms-2 I couldn't manage this

    asked by Babita on July 2, 2015
  29. physics

    Phrank (36.4kg) runs at 2.2 m/s and jumps onto a large stationary skateboard (2.3kg) on which Phrancine (22.7kg) is sitting. After the collision, Phrank, Phrancine, and the skateboard move at 1.3 m/s. Find the momentum before and after the collision along

    asked by brett on February 11, 2012
  30. math

    Dave walked from point A to point B due North East for a distance of 20m. He immediately changed direction and walked 50m from B to C on a bearing of 110 degrees. i. Calculate the distance AC ii. Find the bearing of C from A

    asked by lindsay on May 21, 2013
  31. geometry

    I have a question: My textbook says "The surface of a right prism is 224 sq. feet, and the length of a side of the square base is one-third the height. What are the dimensions of the prism?" How do I find out the dimensions when I don't know the height or

    asked by Meredith on February 26, 2008
  32. Physics

    A golfer, standing on a fairway, hits a shot to a green that is elevated 5.50 m above the point where she is standing. If the ball leaves her club with a velocity of 46.0 m/s at an angle 0f 35.0º above the ground, find the time that the ball is in the air

    asked by Jacob on February 17, 2014
  33. tsu

    While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 275 m east, 160 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.

    asked by clyde on March 5, 2010
  34. Math

    Write a function that represents the situation. Find the balance A in the account after the given time period t. $2000 deposit that earns 5% annual interest compounded quarterly; 5 years A function is A= The balance of the account after 5 years is $_

    asked by anon on March 22, 2016
  35. physics

    While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 260 m east, 195 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.

    asked by louden on September 20, 2009
  36. Trig

    Days 0 2 4 6 8 10 12 14 16 Lions (number) 1272 1523 1152 891 1284 1543 1128 917 1185 Deer (number) 39 47 63 54 37 48 60 46 40 Find a sin Equation for Lions and deer. use this model. Thanks! y=k + A sin (Bx+C)

    asked by Joshaw on April 25, 2016
  37. writing

    Now that you've spotted the problems of shift of person and shift of number, revise the paragraph by removing these inconsistencies. Rewrite the paragraph, maintaining consistency by using first person plural when referring to the readers, and third person

    asked by Anonymous on September 14, 2012
  38. chemistry

    I am trying to answer a bunch of lab questions about a lab I did and am stuck on finding the morality of the diluted vinegar solution? Can anyone help me? (I hope I gave enough info) Here where the lab procedures that I already went through: Transfer 10mls

    asked by Gweedo8 on June 12, 2009
  39. MOLARITY QUESTION

    I am trying to answer a bunch of lab questions about a lab I did and am stuck on finding the morality of the diluted vinegar solution? Can anyone help me? (I hope I gave enough info) Here where the lab procedures that I already went through: Transfer 10mls

    asked by Gweedo8 on June 12, 2009
  40. precalculos

    The cost C of producing x thousand calculators is given by the following equation. C=-15.2x^2+15,990x+580,000(x≤​175) Find the average cost per calculator for each of the following production levels. 40,000​; 60,000​ and 175,000

    asked by maria on November 3, 2016
  41. physics

    An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.

    asked by sue on December 15, 2010
  42. College Calc 1

    Find the area bounded by the parabola y^2=4x and the line y=2x-4. Use vertical representative rectangles (integrate with respect to x) and horizontal representative rectangles (integrate with respect to y). the answer is 9 square units ... i just need to

    asked by Ashton on December 15, 2010
  43. math

    Find the area bounded by the parabola y^2=4x and the line y=2x-4. Use vertical representative rectangles (integrate with respect to x) and horizontal representative rectangles (integrate with respect to y). the answer is 9 square units ... i just need to

    asked by ashton on December 15, 2010
  44. Physics - Vectors

    A jet travels from Vancouver to Calgary for 1000 km, then turns [N] and travels another 200km toward Edmonton. Draw a scale diagram. Find the displacement of the jet from Vancouver. I just don't get how to draw this out.

    asked by -Untamed- on September 22, 2011
  45. math

    The stopping distance of a car traveling 25mph is 61.7ft, and for a car traveling 35mph it is 106ft. The stopping distance in feet can be described by the equation y=ax^2 + bx + c, where x is the speed in mph. Find the values of a and b.

    asked by Alyssa on October 21, 2011
  46. Math

    a boy standing 70m away from a flag post observe that the angle of elevation of the top and bottom of a tower on top of the flag post are 57 and 69 degrees respectively. find the height of the tower

    asked by Tundr on March 7, 2017
  47. Algebra II

    Find the exact solution(s) of the system: (x^2/4)-y^2=1 and x=y^2+1 Answer:(4,sqrt3),(4,-sqrt3) 2)Write an equation for an ellipse if the endpoints of the major axis are at (-8,1) and (8,1) and the endpoints of the minor axis are at (0,-1) and (0,3).

    asked by Lucy on April 26, 2008
  48. Statistics

    A local fire station receives an average of 0.5 rescue calls per day. Find the probability that on a randomly selected day, the fire station will receive fewer than two calls.

    asked by HELP on July 13, 2012
  49. Math

    The standard deviation of test scores on a certain achievement test Is 11.3. If a random sample of 81 students had a sample score of 74.6 , find a 90% confidence interval estimate for the average score of all students.

    asked by Rami on August 20, 2014
  50. physics

    An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.

    asked by sue on December 15, 2010
  51. Math

    Proma earned $82 last week. She earned $6 each hour and received a bonus of $10 for exceptional work. Which equation can be used to find h, the number of hours Proma worked last week? A. 6h+10=82 B. 6h-10=82 C. 10h+6=82 D. 10h-6=82 A? I used to think it

    asked by Jerald on June 1, 2013
  52. Physics

    I just need to clarify something in my mind- I look at a graph and the position changes from 3 to 8 over a ten second interval, to find total displacement, I just take 8-3 would equal 5 for total displacement, correct? I don't need to bother with the time

    asked by Joel on September 6, 2010
  53. chemistry

    Hydrogen and oxygen react according to the equation: 2H2 + O2 -> 2H2O. According to Avogadro's law, how many liters of hydrogen are required to react with 2.0 L of oxygen at STP? How do you set this equation up and find the answer???

    asked by Jen on March 28, 2010
  54. Math

    The volume of the solid obtained by rotating the region bounded by y=e^x, y=Inx, x=1, and x=2 about the line y-axis can be computed using the method of cylindrical shells. Using the method of cylindrical shells find the volume.

    asked by Lexi on February 4, 2018
  55. Intro to Physics

    The gravitational force exerted on a solid object is 5.15 N as measured when the object is suspended from a spring scale. When the suspended object is submerged in water, the scale reads 4.00 N. Find the density of the object.

    asked by Amy on November 7, 2012
  56. maths

    I've to create a scatter plot using the following coordinates: (0,15.0), (1000,13.0), (2000,11.0), (3000,9.1) and (4000,7.1) using these points i have to find a prediction equation. thus, i used the points (1000,13.0) and (3000,9.1) the equation i found

    asked by bindiya farswani on February 9, 2010
  57. CHEM-HELP!!!!

    help? how do i calculate the heat of formation of a solid? i only know how to find the heat of formation of a liquid. here's what i have so far. delta t= 16.8 degrees c mass= 33.136 g cp = 4.184 j/g degrees c m cp delta t = -2329J (process is exothermic)

    asked by Jake on October 24, 2007
  58. Maths

    Really need some help here., There was an I.T. Fair. 2/9 of the visitors were children. there were 4000 more adults from children. the ration of boys to the number of girls was 3:5. the ratio of men to women was 3:1. find the number of all male visitors in

    asked by J.Sarah on October 6, 2014
  59. physics

    An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.

    asked by tammy mikols on December 16, 2010
  60. math

    A chemist test involves measuring two independent quantities A and B, the expressing the results of the test as C such that C= 3A-0.5B. Give that A is normally distributed with mean 10 and standard deviation of 1, and B is also normally distributed with

    asked by Frank on November 17, 2016
  61. math

    bob wants to cover the floor of a room 3m wide and 4m long by squared tiles. if each square tile is of side 0.5m,then find the number of tiles required to cover the floor of the room.

    asked by apekshita on February 23, 2015
  62. Trig

    If secx = 8 and -pi/2 < x < 0, find the exact value of sin2x Use the identity sin 2x = 2(sinx)(cosx) if secx = 8, then cosx = 1/8 where x is in the fourth quadrant. consider a right angled triangle with x=1, r=8, then y=?? by Pythagoras 1^2 + y^2 = 8^2 y =

    asked by Ashley on April 14, 2007
  63. 6th g-math

    Diego has $10 to spend on school supplies. He wants to buy a calculator for $5.50 and several packs of mechanical pencil for $1.50 each. What inequality can be used to find the maximum number of packs of mechanical pencils Diego can buy? A. 1.5p + 5.5 _<

    asked by Nastia on May 23, 2012
  64. Grade 8 Math

    URGENT HELP!Squares into Primes Some primes can be expressed as the sum of two squares, as in 13=2^2+3^2; some can't:7=/=a^2+b^2. Other primes can be c^2+2e^2 like 11=3^2+2*1^2; still others are f^2+3 g^2, like 31=2^2+ 3* 3^2. Find all the primes less than

    asked by Sara on September 28, 2009
  65. math

    How do i find the area of a triangle? For example: A squared + b squared= c squared 8.5 squared + 6.4 squared= c squared 72.25 + 40.96= c squared 113.21=c squared 10.6400188=c even tho i thought this was the answer it is not because it does not solve the

    asked by samantha on August 29, 2008
  66. Statistics

    You draw a card from a deck of 52 cards twice, each time replacing the card. Find the following probabilities (rounded to the nearest thousandths) of observing: a.) exactly 1 black card. P(1 black card)= b.) exactly 1 club. P(1 club)= c.) exactly 1 two.

    asked by Keonn'a on October 13, 2018
  67. math test prep

    Ms. Snyder wants to buy a television at an electronics store. All televisions at the store are 3 4 of the original price, p . She has a $40 discount coupon she will use during the sale. Which equation should Ms. Snyder use to find the final price, f , of a

    asked by destiny on March 30, 2011
  68. Chemistry

    Find the value of delta H net for the following equation: SnBr2(s) + TiCl4(l) -> TiBr2(s) + SnCl4(l) I know that I already posted this once but I am still lost on what to do. I know that TiCl4=-804.2 and SnCl4=-511.3 but I thought that the values for SnBr2

    asked by Hannah on February 1, 2012
  69. Algebra II - Word Problem

    If a car is traveling downhill at 45 miles per hour on dry pavement, then the braking distance B is B = 45/(0.4+m), where m

    asked by John on November 15, 2012
  70. Maths

    A right circular cone is circumscribed about a sphere of radius a .If h is the distance from the centre of the sphere to the vertex of the cone. Show that the volume of the cone is 1/3pi a^2(a+h)^2/(h-a). Find the angle of a cone when the volume is minimum

    asked by Joel on August 9, 2016
  71. trustee government

    hi where can i find more information about trustees that play a role in the congress. i already know the basic definition but i need to know what they do when it comes to the congress. do they hold property in the government or something Please post the

    asked by david on December 6, 2006
  72. chemistry

    we have a bag that can hold up to 775 ml. we have baking soda and 6 molar of hydrochloric acid. how can we find out how much baking soda and acid we need so that when they react, the gas will fill the bag up just enough so that it wont pop

    asked by george on April 10, 2012
  73. math

    The students in Mr. Stevens class are having a turtle race. The race will last 2 minutes. Find the distance from the start each turtle will be at the of the race.Rex 1/6 speed (in inches per second).Whatwas the distance at the end of the race.

    asked by ttuuffyy on April 10, 2013
  74. Calculus

    The length l of a rectangle is decreasing at the rate of 3cm/sec, while its width w is increasing at the rate of 3cm/sec. Find the rates of change of the perimeter, and the length of one diagonal at the instant when l=15 and w=6.

    asked by Lev on March 1, 2017
  75. physics

    what work is done in raising a 3.0 kg mass from a 2.5 m high ledge to a 6.5 m high shelf? How much potential energy (Ep) does the mass now posses? Ok so for part 1 its w = m g h w = (3.0kg)(10m/s^2)(6.5m-2.5m) w = 120J now how do you find the potential

    asked by G on July 3, 2015
  76. Math

    Victoria has a 2-pound package of flour. she uses 2/5 of the flour to make a pizza. She then uses 3/10 of the remaining flour to make bread. Find the weight of the package of flour that she has left. Express your answer in decimal

    asked by Bella on February 25, 2016
  77. Geometry

    A regular pentagon has side length 12cm.the perimeter of the pentagon is 60cm and the area is 247.7cm2 .a second. Pentagon has side lengths equal to 24cm .find the perimeter of the second pentagon

    asked by Josh on July 14, 2015
  78. Algebra

    An object is dropped from a bridge. Find the distance the object has fallen when the speed reaches 60ft/s. Use the equation v=square root 64d, where v is the speed in feet per second and d is the distance in feet

    asked by Anonymous on November 12, 2016
  79. Math

    If the numerator of a fractionis multiplied by 4 and the denominatoris reduced by 2,the result is 2.if the numerator of the fraction is increase by 15 and 2 subtracted from the double of the denominator the result is 9/7, find the fraction.plz tell me step

    asked by Abhi on July 2, 2016
  80. Algebra II

    Find the exact solution(s) of the system: (x^2/4)-y^2=1 and x=y^2+1 Answer:(4,sqrt3),(4,-sqrt3) 2)Write an equation for an ellipse if the endpoints of the major axis are at (-8,1) and (8,1) and the endpoints of the minor axis are at (0,-1) and (0,3).

    asked by Lucy on April 19, 2008
  81. ratio

    Gina sold cookies for $3 a box. For each box she sells, she earns $1.50. One week, Gina sold $90 worth of cookies. How much did she earn? -How do I find this answer? I don't know the steps to finding it.

    asked by Celest on June 10, 2013
  82. statistics

    A couple considering a mortgage of $100,000 have a choice of loans. One loan is an 8% loan for 20 years, and the other loan is at 8% for 30 years. Find the amount of interest that the couple can save by choosing the 20-year loan.

    asked by Rick on November 4, 2014
  83. math

    write a five digit number(s) that fits each description. use only the digits that the athletes are wearing. use each digit only once in each answer. The digits on athletes are: 4,1,8,3,6 find all of the numbers with a 4 in the ones place and 8 in the ten

    asked by John Dosley on December 11, 2013
  84. math

    The data shows the total number of employee medical leave days taken for​ on-the-job accidents in the first six months of the​ year:19​, 10, 26​, 12​, 28​, 19. Find the mean number of days taken for medical leave each month

    asked by dssie on January 22, 2017
  85. Math 2--questions

    7. Find the sum. –14 + 7 + (–3) –24 –18 –10 *** –4 8. A scuba diver descends 350 feet and then another 120 feet. Express the diver’s final depth as an integer. –420 ft 420 ft ** –470 ft 470 ft

    asked by Sally on September 27, 2014
  86. Algebra

    Jim wants to build a rectangular parking lot along a busy street but only has 1,900 feet of fencing available. If no fencing is required along the​ street, find the maximum area of the parking lot.

    asked by Janice on June 24, 2015
  87. calculus

    Show that the function f(x)=4x^3−15x^2+9x+8 satisfies the three hypotheses of Rolle’s theorem on the interval [0,3]. Then find the values of c on the interval [0,3] that are guaranteed by Rolle’s theorem. Give your answer as a set of values, e.g.,

    asked by esma on October 6, 2010
  88. Linear Algebra

    Find conditions on k that will make the matrix A invertible. To enter your answer, first select 'always', 'never', or whether k should be equal or not equal to specific values, then enter a value or a list of values separated by commas. A = −2 3 0 2 k 0

    asked by sal on October 21, 2018
  89. math

    according to a college survery, 22% of all students work full time. find the mean for the number of students who work full time in samples of 16. round to the nearest tenth how do we do this on a TI84 calculator

    asked by Ms on July 25, 2016
  90. Functions, graphs

    f(x)=(x+1)/(1+x^2) a) explain why the graph lies above the x axis on the interval x=0 and x=sqrt(3) b)write an expression using the indefinite integral that gives the area between the graph f and the x axis between the values x=0 and x=sqrt(3). c)use

    asked by Matthew on March 5, 2016
  91. Calculus

    A particle moves along the x-axis with velocity v(t) = sin(2t), with t measured in seconds and v(t) measured in feet per second. Find the total distance travelled by the particle from t = 0 to t = π seconds. Do I have to take the integral of the equation

    asked by Henry on February 21, 2016
  92. solid mensuration

    A circle has an area equal to 25 pi sq.cm. Its diameter AB coincides with one of the sides of triangle ACB in which the vertex C lies on the circle. If the triangle has an area equal to 11 sq.cm, find its perimeter. Please include solution. Thanks.

    asked by Cathy on December 1, 2012
  93. math/algebra

    Can someone help me with this problem....5x/7-6x/5=3/35 find the common denominator for the left side You should get it to be 35 multiply both the numerator and the denominator by the number that makes each fraction have a denominaor of 35 After this

    asked by ms jay on August 19, 2007
  94. HSM/220 WK 6 Budget

    I need to find the indirect costs for the budget assignment for hsm/220. I've filled everything in, but I am coming up empty for the direct cost portion. How do you come up with the indirect costs for the budget assignment? Thanks, So Fresh

    asked by SoFresh on September 2, 2011
  95. Trig

    An isosceles triangle has a height of 12.5 m (measured from the unequal side) and two equal angles that measure 55°. Determine the area of the triangle. Split in half the triangle is a right triangle, so it's three angles are 90%, 55% and 70%. I'm still

    asked by R on January 10, 2017
  96. science

    A sample of certain mass of a gas was collected and it was found that the number of atoms and the nuber of molecules in the collected sample are equal.find this observation infer the type of molecules of the gas.

    asked by saurav on February 2, 2015
  97. Statistics

    Assume that men constitute 49% of population in a country. Assume also that among men there are 5% of color-blinded. Find the proba- bility that a person chosen at random is a color-blinded man.

    asked by Erica on November 14, 2008
  98. statistics

    suppose we went to test the claim that the average GPA of all students in this university is at least 2.8. however , from out class with 25 students, we find the average GPA is only 2.7 with standard deviation 0.35. can we reject the claim with

    asked by Anonymous on March 27, 2013
  99. Physics I

    A container of volume 0.71 m3 contains 1 mol of argon gas at 27◦C. Assuming argon behaves as an ideal gas, find the total internal energy of this gas. The value of gas constant is 8.31451 J/mol · K

    asked by Brayan on April 18, 2015
  100. Math

    The spinner is divided into equal parts. Use a tree diagram to find the probability that the spinner will land on a consonant the first time and a vowel the second time if the spinner is spun twice My spinner has 3 parts, N E and U A:2/3 B:2/9 C:3/4 D:5/9

    asked by loli on June 8, 2018

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