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  2. 2017
  3. February

Questions Asked on
February 13, 2017

  1. math

    There is a unique parabola that goes through the points P = ( 1, 1), Q = (1, 1), and R=(5,6) that can be described by y=ax^2 +bx+c. Find coefficients a, b, and c.

    asked by Grace

  2. math

    The diameter and the slant height of a cone are both 24 cm. Find the radius of the largest sphere that can be placed inside the cone. (The sphere is therefore tangent to the base of the cone.) The sphere occupies a certain percentage of the cone’s

    asked by Riley

  3. math

    v\left(t\right)=5-tv(t)=5−t represents the velocity of an object over the interval [0, 7] in meters per second. What is the displacement of the object over the time interval?

    asked by caledh

  4. math

    v\left(t\right)=5-tv(t)=5−t represents the velocity of an object over the interval [0, 7] in meters per second. What is the total distance traveled of the object over the time interval?

    asked by caledh

  5. math

    Estimate the value of \int^7_4\left(1+x^2\right)\sin x\:dx, make sure that your answer has 3 decimal places.

    asked by caledh

  7. math

    t (seconds) 1 3 4 7 v(t) (meters/second) 20 32 42 52 The table shows the velocity (in meters per second) for an object over the interval [1.7]. Estimate \int^7_1v\left(t\right)dt∫17v(t)dt using 3 subintervals and the Left Hand Riemann Sum.

    asked by caledh

  8. math

    R\left(t\right)=4t^2-3tR(t)=4t2−3t represents the rate of an object over the interval [5, 30]. What is the average rate of the object over the time interval?

    asked by caledh

  9. math

    What would be a person target heart rate be if they are 14 years old? I know it starts like 220-14=206 but then what... Please help

    asked by kacy

  10. Chemistry (ap)

    using the measured value of the extinction coefficient for CV ( extinction coefficient = 87,000 M−1 cm−1 ) calculate the [CV] for and abs of 0.9562

    asked by Jamera

  11. math

    (a) Make a table of values rounded to two decimal places for the function f(x) = ex for x = 4, 4.5, 5, 5.5, and 6. Then use the table to answer parts (b) and (c). (b) Find the average rate of change of f(x) between x = 4 and x = 6. (Round your answer to

    asked by katy

  12. Math 115

    Create a piecewise function of the following scenario where D(t) is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 6 miles per hour for 30 minutes. You rest for 10 minutes,

    asked by Janiel

  13. Math 115

    Consider the amount of gas in your car during a road trip. You start out with 45 gallons and drive for 4 hours, leaving you with 27 gallons in the tank. You stop for lunch for 2 hours and then drive for 2 more hours, leaving you with 18 gallons. t= time C

    asked by dayna

  14. College Algebra

    suppose you go on a road trip, driving at a constant speed of 75 miles per hour. create an equation relating distance ,d, in miles and time traveled, t, in hours. d= __?__

    asked by lilly

  15. Math

    What is the area of a rhombus with: Side=8 cm Acute angle between one pair of sides=30 degrees Please don't use trigonometry as I'm in Class 7. Thanks in advance.

    asked by Aastha

  16. math

    Iam not able to get this one.sides of a rectangular plot of land are measured correct to nearest metre.measurement s given as 20m by 3m.so what is upper bound of the plot length?,the least possible perimeter of the plot?

    asked by Nthabeleng

  18. Maths

    Show that the mid point of line joining points (-5,12) and (-1,-12) is a point of trisection of the line joining the points (-8,-5) and (7,10).

    asked by Anonymous

  19. Maths

    AB is a line segment and M is its mid point. Semicircle are drawn with AM,MB and AB as diameters on the same side of line AB. A circle (O, r) is drawn so that it touches all 3 semi circles . prove that r=1/6 AB.

    asked by Anonymous

  20. Math

    Mr. Letterman has an unlimited amount of 5-cent stamps and 7-cent stamps. What is the largest amount of postage that he cannot make?

    asked by Shanee

  21. Chemistry

    which compound shows small change in solubility from 0°C to 100°C?

    asked by Rayan

  22. Comprehension

    Volunteer Spotlight: Jane Birch Meet Jane Birch: Having always been described as the “Merry-Little-Helper”, Jane simply loves doing things for other people. Through her passion for volunteering and dedication to serving the community, Jane has always

    asked by deyond ng

  23. math

    The table shows the results of drawing one marble from a bag of colored marbles. Each marble was replaced after the outcome was recorded. If there are a total of 50 marbles in the bag, about how many of the marbles are black? A.15 B.6 C.12 D.9

    asked by joelsttn

  24. Calculus for Business Administration and social s

    Simplify the cubed root of 432x to the 12th power

    asked by Lanetta

  25. Social Studies

    Quote: We seek no conquest. All we ask is to be let alone." - Jefferson Davis According to this quote, which statement best summarizes the South's agenda? ~ to continue their way of life unchanged *** ~ to accept changes to the plantation system ~ to

    asked by Not cheating

  26. Trigonometry

    A point on the rim of a wheel of unknown radius in a pulley system has a velocity of 16 in/min. The wheel is making 4 rpm. If the radius of the other wheel is 8 inches, find the 8" wheel's rpms and the unknown wheel's radius. I got a radius of about 0.637"

    asked by MB

  27. Maths

    Find the sum of the first eight terms of a linear sequence whose first term is 6 and whose last term is 46

    asked by Israel

  29. Computer(E-mail)

    can anybody understand mr about E commerce ??

    asked by Raghav

  30. ELA and Please Hurry!!!!

    Not only is the race special because it takes place on a special day, but it also has a rich, over three-decade tradition. While the Boston Marathon can declare it is the oldest road race in America, few 10K’s can claim they’ve been around longer than

    asked by JT

  31. physics

    calculate angular momentum and rotational kinetic energy of earth about its own axis

    asked by Anonymous

  32. Math Ms. Sue please help!

    How do you know if a radical expression is in simplest form?

    asked by Olivia N J

  33. Algebra

    A ball is thrown into the air with an upward velocity of 26 feet per second. Its height, h, in feet after t seconds is given by the function h(t) = –16t^2 + 26t + 5. a. How long does it take the ball to reach its maximum height? Round to the nearest

    asked by Wes

  34. Algebra

    What is an equation for the line with slope 2/3 and y-intercept 9? A. Y=2/3x B. y=9x C. Y=2/3x+9 D. y= 9x+2/3 Q2. Suppose Y varies directly with X, and Y=24 when x=8. what is the value of Y when x =10. A. 10 B. 30 C. 80 D. 240 .

    asked by Please Help

  35. ELA

    Which of the following citations in a works cited page uses proper MLA style? A.Paul Smith. The Night on the River. New York:Penguin,1987.print B.The Night on the River. Smith,Paul. New York:Penguin,1987.print C.Smith,Paul."The Night on the River."New

    asked by whatever

  36. History

    Why would new citizens need to know about the Dust Bowl of the 1930s? I have lots of info for my paper. I just need to know why the new citizens should know about this fact. I have no idea where to even begin. I thank you in advance for any help given. I'm

    asked by Marylyn

  37. Calculus

    Differentiate each 1. Y= 1/x + 3/x^2 + 2/x^3 2. Y= x^5(1+ x)^5 3. Y= 4-x^2 / 2x+3 Can someone help me I'm lost

    asked by Elizabeth

  38. chemistry (ap)

    using the measured value of the extinction coefficient for CV ( extinction coefficient = 87,000 M−1 cm−1 ) calculate the [CV] for and abs of 0.9562 (CV stands for Crystal Violet)

    asked by Jamera

  40. physics

    When the temperature of a thin silver [α = 19 × 10-6 (C°)-1] rod is increased, the length of the rod increases by 3.6 × 10-3 cm. Another rod is identical in all respects, except that it is made from gold [α = 14 × 10-6 (C°)-1]. By how much ΔL does

    asked by Micah

  41. Science/Weather

    Satellite images help meteorologists in all the following ways except: a) monitoring changes in the strength of storms b) locating areas of high and low pressure systems. c) predicting rainfall amounts d) recording daily high and low temperatures. I think

    asked by HiHi12345Kate

  42. Math

    Can someone please help me understand box-and-whisker plots? I get really confused on what each thing is and how to plot it. Thanks.

    asked by Anonymous

  43. science

    a body moving with an inertia velocity of 30m/s accelerate uniformly at a rate of 10m/s until it attends a velocity of 50m/s.what is the distance covered during this period?

    asked by god'scare victor

  44. Chemistry

    Trimix 10/50 is a gas mixture that contains 10% oxygen and 50% helium, ant the rest is nitrogen. If a tank of Trimix 10/50 has a total pressure of 2.07 x 10 4 kPa, then what is the partial pressure of helium?

    asked by kathy

  45. life orientation

    5 demographic structures of south Africa and their roles

    asked by mpho

  46. math

    a gumball machine contains orange yellow and purple gumballs the probability of getting an orange gumball is 3/4 the probability of getting a yellow gumball is 1/6 if there are 36 gumballs in the machine how many are purple?

    asked by sky

  47. Science!

    What changes would a cold front bring to a warm, dry area? A)extended period of rain B)several gray skies C)dry and asunny skies D)rain or thunderstorms I think it is either a or d but I am leaning more to a, so please help!

    asked by JT

  48. math

    write a ratio and percent for the shaded area. total of 20 squares 6 shaded squares A. 6/25 30% B. 3/50 6% C.6/25 24% D.3/10 30%

    asked by kenzie

  49. Math

    Two fire wardens are stationed at locations A and B, which are 50 km apart. Each warden sights the forest fire at C. Given that angle CAB is 52 degrees and CBA is 43.0, find the distance from C to the nearer warden, to the nearest 0.1 km

    asked by Lisa

  51. Social studies

    Which of the following was the first major battle of the civil war

    asked by Maddie

  52. physics

    A car moves in a straight line with constant acceleration. Starting from rest at t=0 it travels 8.0 m in 4.0 s. What is the speed of the car at t= 4 s. PLEASE explain :)

    asked by Anonymous

  53. physics

    a 5.4 kg ball slides along a friction-less, horizontal surface at 6.2 m/s. The ball then encounters a ramp which slopes upward. The ball slides up the ramp, slowing down until it stops and slides back down. what is the kinetic energy of the ball as it

    asked by andrea

  54. Health i thin ! PLZ HELP ASAP!!!!

    Which of the following is not a type of fat? A.bi fat B.trans fat C.saturated fat D.unsaturated fat

    asked by Kailyn

  55. 099 math

    -2(-x-5)+1=5

    asked by Tim

  56. Math

    Joe was driving at a rate of 60 mph. As he approached a curve in the road, his speed was 51 mph. What was the % change in Joe's speed?

    asked by Shirley

  57. 099 math

    2(2x-7)-16=3(-x-7)-11

    asked by Tim

  58. Math

    if the union member is able to invest their $12,000 is a fund that pays 1.8% compounded continuously, in how many years will the future values be worth $20,000?

    asked by DJ

  59. math

    3(x+4)-5= n is 9

    asked by olga

  60. Geometry

    What is the most precise classification of the quadrilateral formed by connecting the midpoints of the sides of the isosceles trapezoid?

    asked by Denise

  62. physics

    A vector has the components Ax=−37m and Ay=44m. Part A What is the magnitude of this vector? Express your answer to two significant figures and include appropriate units. the answer for part A is help me with b pls 57 m Part B What angle does this vector

    asked by sintia

  63. English

    1. Read the following passage from "The Women's Baths." "I have never known my grandmother to be so generous and open-handed as on the day which we spent at the market baths. She was pleased and proud as she listened to the blessings called down on her by

    asked by GummyBears18

  64. Social Studies

    How did the supreme Court decision in Worcester v. Georgia and the Indian Removal Act lead to the removal and resettlement of Native American grops The Indian Removal Act leads to the removal and resettlement of Native Americans because the other states

    asked by FunnyFlies

  65. math

    A skydiver jumps from an airplane at an altitude of 2,500 ft. He falls under the force of gravity until he opens his parachute at an altitude of 1,000 ft. Approximately how long does the jumper fall before he opens his chute? h(t) = -16t2 + vt + h0 A. 2.4

    asked by Anonymous

  66. PHYSICS

    Vector A⃗ points in the negative x direction and has a magnitude of 22 units. The vector B⃗ points in the positive y direction. partA:Find the magnitude of B⃗ if A⃗ +B⃗ has a magnitude of 37 units. partB: Sketch A⃗ and B⃗ . Draw the vectors

    asked by sintia

  67. english

    Change the voice into avtive and passive

    asked by niketa katare

  68. 099

    2(2x-7)-16=3(-x-7)-11 After getting rid of the () 4x-14-16=-3x-21-11 Where do I go from here?

    asked by Tim

  69. PHYSICS

    PLEASE HELP WITH PART E AND F THANKS!! Find the direction and magnitude of the following vectors. A⃗ =( 22 m )x^+( -15 m )y^ Express your answer in degrees using three significant figures. θA = THE ANSWER IS-34 Part B Express your answer in meters using

    asked by sintia

  70. math

    an ave-sized dog weighs about

    asked by komi

  71. chemistry

    How can we separate a mixture of iron filings and sodium chloride

    asked by T.j

  73. honors eng 3

    which of the following is NOT a characteristic of Twain's frame narrator in "the celebrated jumping frog of calaveras county"? he is a well-educated man he speaks in the first person point of view he expresses frustration and disinterest he speaks

    asked by girl

  74. Math

    How many three-digit counting numbers are exactly divisible by 6 but not also exactly divisible by 9?

    asked by Bobby

  75. English

    What is the interpretation of Lines 1-8 of: On the Pulse of Morning? I honestly don't know what the author wants the reader to understand in this poem. It seems like an unsolvable question.. Anyone know at least a little about how to interpretate this

    asked by Ari

  76. pre algebra

    what is the ratio 8 to 60 written as a fraction in lowest terms

    asked by Ariel

  77. Chemistry

    what is the concentration of I- before the reaction when 35 ml of 0.23M KI is mixed with 15 ml of 0.15M Fe3+ 2I- + 2Fe3+ --> 2Fe2+ + I2

    asked by Farh

  78. value

    ACAR OF MASS 1200KG TRAVEL OF SPEED OF 20M PERSECOND IF ITS ENGINE DEVELOPS INTO 3KW,FIND THE FORCE USED

    asked by Anonymous

  79. Math

    Chad buys peanuts in 2-pound bags. He repackages the into bags the hold 5/6 pound of peanuts. How many 2-pound bags of peanuts should chad buy so that he can fill the 5/6-pound bags without having any peanuts left over?

    asked by Emma

  80. Please Help

    What would be a person target heart rate be if they are 14 years old? I know it starts like 220-14=206 but then what... Please help

    asked by kacy

  81. PHYSICS

    A box is measured to have a length of L=(10.0+_0.01)FT A WIDTH OF W=(1.534+_0.002)FT AND A HEIGHT OF H=(0.013+_0.001)FT. FIND THE VOLUME OF THE BOX .WRIE THE EXPRESSION FOR V IN THE FOR OF EQUATION 2-3 AND FIND TTHE EXPRESSION FOR SIGN STANDARD DEVIATION

    asked by sintia

  82. English composition

    Write a debate on the against the motion men should help at the kitchen

    asked by Anonymous

  84. Social Studies

    Why did miners in the West create groups of vigilantes? A. To clear Forests and prepare for mining B. To take control of claims from businesses C. To enforce laws and punish criminals D. To replace independent contractors B?

    asked by Sierrie

  85. Social Studies

    3 which U.S. region was most impacted by the completion of transportation of the transcontinental railroad in 1869 A South B west ** C east D North

    asked by Sierrie

  86. math

    the volume of a right rectangular prism is 36 cubic units. list at least 3 possible lengths widths and heights that this shape could have

    asked by dylan

  87. Math

    1. Identify the decimal And simplified fractional form of 60%. A. 0.6 and 4/5 B. (0.6 and 3/5) C. 0.06 and 3/5 D. 0.06 and 6/10 2.A baseball team wins 45% of its games. What fraction of games does it win? A. 8/20 B. 9/25 C. (9/20) D. 8/25 3. According to a

    asked by Help I need somebody not just anybody

  88. chemistry

    If there are 2.871mol of gas present at a temperature of 200.0K and a pressure of 1.009atm, what would the volume be?

    asked by jennifer

  89. Social Studies

    What were some elements of the Reconstruction Act

    asked by Sierrie

  90. s.s

    where were most native americans in north america located when europeans arrived? there are no choices so just help me with this someone please help please!!!!!

    asked by kakashi hatake

  91. Biology

    how many grams of sucrose would I need to make 350mL of an 18% solution?

    asked by Nicole

  92. Math-Geometry

    For coordinates A(1,-4) B(5,-1) C(8,-5) D(4,-8) Prove ABCD is a rectangle through the use of a coordinate paragraph.

    asked by Monica

  93. chemistry

    determine the mass of carbon4oxide produced from burning 104g of ethyne

    asked by Hafsat

  95. math

    if the sum of interior angel of a regular polygon is 30 degree right angel .how many sides has it?

    asked by Godsent miracle

  96. Cal 1

    S=6t^3+8t^2+5 -3≤ t≤ -1 Find the body's average velocity for the given time interval.

    asked by Christopher

  97. Math and Please Help!

    Jade is painting a rectangular wall. The wall is 4 1/4 yd long and 2 2/3 yd high. The formula for the area of a rectangle is A=bh. What is the area of the wall? I think the answer is 11 and one thirds.

    asked by JT

  98. Chemistry

    A reaction requires 22.4 L of gas at STP. You have 30.5 L of gas at 101.5 kPa and 373 K. Which of the following statements is true? (Use the ideal gas law: PV = nRT where R = 8.31 L-kPa/mol-K.) You will have excess gas for the reaction. You will have

    asked by Michael

  99. math

    A spinner has three congruent sections labeled 1, 2, and 3. On the first two spins, the arrow stops on 1 and then 2. What is the probability that on the third spin the arrow will stop on 3? A.1 B.2/3 C.1/3 D.0

    asked by joelsttn

  100. Algebra

    When mushrooms are dried, they lose 80 percent of their mass. What weight of mushrooms must be picked to get 1 kg of dry mushrooms?

    asked by Anna

  101. physics

    A particle moving in simple harmonic motion passes through the equilibrium point (x=0) 9 times per second. At t=0t=0 its velocity at x=−0.01 m is negative. It travels 0.4 m in a complete cycle. The particle's position as a function of time is described

    asked by kloe

  102. physics

    The displacement of a block attached to a horizontal spring is given by x=0.5sin(7.8t−1.06)m What is the earliest time (t>0) at which x=0.16m? Find the acceleration when x=0.44m helppppppp

    asked by kara

  103. English 8 Adjective phrase or adverb phrase

    Some wore shiny rocks on their heads. I know on their heads is preposition but confused if it's adjective phrase because it describes rocks or adverb phrase because it answers where rocks were worn. She Wins the Race, Morning Girl's mother, had said a new

    asked by Melissa

  104. physics

    A car moves in a straight line with constant acceleration. Starting from rest at t=0 it travels 8.0 m in 4.0 s. What is the speed of the car at t= 4 s. PLEASE explain :)

    asked by Anonymous

  106. Science

    Plants use nutrients that_______ adds to soil. 1.bedrock 2.sand 3.loom 4.humus I think it's humus.

    asked by Helppp

  107. Math

    A wire 32 cm long is cut into two pieces. The longer piece is 6 cm longer than the shorter piece. What is the length of the shorter piece?

    asked by Angii

  108. math

    andy counted his steps as he walked halfway around the school. he counted 654 steps. about how many steps is it around the school?

    asked by peter nick

  109. physics

    With a block of mass m , the frequency of a block-spring system is 1.8Hz. When 50g is added, the frequency drops to 1Hz . Find m and the spring constant.

    asked by kara

  110. Socials

    I want to know what these points mean please and thank you. I'm trying to describe middle class gentry. it is a territorial elite. It transcends status derived from service or personal association on the one hand and the authority derived from mere

    asked by Mohammad

  111. physics

    A block attached to a spring is displaced from equilibrium to the position x=+0.5m and released. The period is 2.1s . At what positions and times during the first complete cycle do the following conditions occur. a) |v|=0.5vmax, Where vmax is the maximum

    asked by kara

  112. physics

    A 750g block is attached to a vertical spring whose stiffness constant is 1N/m . The block is released at the position where the spring is unextended. a) What is the maximum extension of the spring? How long does it take the block to reach the lowest

    asked by kara

  113. Pre-Algebra

    He said it to his sisters, he said it to his brothers, what did the witty raindrop elclaim to all the others?

    asked by Elise Baker

  114. physics

    A 300g particle oscillating in SHM travels 35cm between the two extreme points in its motion with an average speed of 30cm/s. Find: a) The angular frequency. b) The maximum force on the particle. b) The maximum speed.

    asked by kara

  115. p

    The displacement of a block of mass 778g778g attached to a spring whose spring constant is 38N/m38N/m is given by x=Asin(ωt)x=Asin(ωt) where A=25cmA=25cm . In the first complete cycle find the values of xx and tt at which the kinetic energy is equal to

    asked by kara

  117. physics

    The displacement of a block of mass 778g attached to a spring whose spring constant is 38N/m is given by x=Asin(ωt) where A=25cm. In the first complete cycle find the values of x and t at which the kinetic energy is equal to one half the potential energy.

    asked by kara

  118. Introduction to negative linear relationships

    Write an algebraic equation. For the altitude, d,based on the number, m.

    asked by Example

  119. Stat

    The lengths of pregnancies in a small rural village are Normally distributed with a mean of 268 days and a standard deviation of 12 days. What percentage of pregnancies last beyond 290 days?

    asked by Vlad

  120. Chem

    21.7 mL of 1.15 M KOH (aq) was required to titrate 25 mL of H2SO4 (aq) as follows: H2SO4 (aq) + 2KOH (aq) --arrow-- K2SO4 (aq) + 2H2) (l) What is the molarity of the H2SO4 (aq)?

    asked by Sarah

  121. Chem

    Specify the concentration of each ion in solution for the following: .10 M AlCl3 (aq) and .15 M (NH4)2SO4 (aq)

    asked by Sarah

  122. History

    I want to know what these points mean please and thank you. I'm trying to describe middle class gentry. it is a territorial elite. It transcends status derived from service or personal association on the one hand and the authority derived from mere

    asked by Mohammad

  123. into to algebra

    You need a 45% alcohol solution. On hand, you have a 150 mL of a 15% alcohol mixture. You also have 70% alcohol mixture. How much of the 70% mixture will you need to add to obtain the desired solution?

    asked by marc

  124. Math

    Says to write a variable expression. An auto repair bill is $220 for parts and $45 for each hour of labor. If h is the number of hours of labor, express the amount of the repair bill in terms of the number of hours of labor. Please help I really don't

    asked by Connor

  125. Algebra

    Translate into a variable expression. Then simplify the expression. Twice the sum of four times a number n and thirty. Can you explain how to write it as a variable expression pls Also what does "and" stand for here?

    asked by Aj

  126. algebra

    A man flies a small airplane from Fargo to Bismarck, North Dakota --- a distance of 180 miles. Because he is flying into a head wind, the trip takes him 2 hours. On the way back, the wind is still blowing at the same speed, so the return trip takes only 1

    asked by marc

  128. calculus

    can someone help me with this problem y=x^2 -9 represents the velocity of an object over the interval [1, 5] in meters per second. What is the displacement of the object over the time interval?

    asked by Anonymous

  129. physics

    a person riding a bicycle whose wheels have an angular velocity of 20 rad/s. The brakes are applied, and the bike is brought to a stop through a uniform acceleration. During braking, the angular displacement of each wheel is 15.92 revolutions. How long

    asked by Zoey

  130. Physical Science

    Why is metal shiny? A. The electrons absorb each light wave. B. The loose electrons reflect most wavelengths of light. C. The electrons emit light due to electronic excitation. D. The electrons transmit most wavelengths of light. (I think the answer is B,

    asked by Hannah

  131. calculus

    can someone also help me ndertsand this question ; y=x^3 +2x^2+3 represents the rate of an object over the interval [7, 10]. What is the average rate of the object over the time interval?

    asked by Anonymous

  132. Physical Science

    If an element has a +1 positive charge and the following chemical symbol, how many electrons does it have? 17 on top, 6 on bottom, Oxygen (O) A. 7 B. 17 C. 5 D. 18

    asked by Hannah

  133. Physical Science

    Like water, hydrogen fluoride, HF, and ammonia, NH3, have relatively high boiling points. Explain. A.The polar molecules of each of these materials have relatively strong attractions for themselves, which translates to relatively high boiling points. B.

    asked by Hannah

  134. English

    I would like help to understand and find some poetic devices in this poem please. Some of the ones I have found are caesura and enjambment i believe. Enjambment seems to push her away from reality and caesura brings her back if I'm analyzing it right? Also

    asked by Mohammad

  135. Math

    The circumference is 3 inches and the length of tube is 16 inches. The string is wrapped around symmetrically around the tube. What is the length of the string?

    asked by Chloe

  136. Math/pre-algebra

    A scale drawing has a scale of 1/4in.:6ft. Find the length on the drawing for each actual length. 12. 18ft 13. 66ft 14. 204ft

    asked by Kiana

  137. Math

    Tickets to a local movie were sold at $7.00 for adults and $5.50 for students.there were 220 tickets sold for a total of $1,390.00.

    asked by Dara

  139. English 8

    Please check Adverb or Adjective phrase There would always be a perfect understanding between them. Adjective Phrase Her mother said "A person isn't real without a name" Adverb phrase She wins the Rsce, Morning Girl's mother had said a new sister would add

    asked by Melissa

  140. Math

    2(-3x+3)+3x= The answer are A -3x+3 B -3x+6 C -3x+9 D 6

    asked by Jenny

  141. Pi

    How do u describe how to check an algebra question??? I need help ASAP

    asked by Jayd

  142. Math

    If log c = -399.699, give the value of c in scientific notation without using any calculator. Show your work. hint: the value of c is small but it does not equal to zero

    asked by Larin

  143. American History-WWII US

    How do the Neutrality Acts of 1935, 37, and 39 become less Neutral?

    asked by Anonymous

  144. English Writing

    I'm not a native speaker. Can you please teach me? Is this sounds weird? I was worrying to stay in English class. However, she made me feel comfortable and fun to stay her class through every class.

    asked by s

  145. Calculus

    A hang glider is standing at the top of a 3,000 foot cliff. The hang glider jumps off and begins to descend at a constant rate of 50 feet per second, how fast is the area of the triangle formed by the cliff, the hang glider, and the ground changing at the

    asked by Kevin

  146. Math

    -6x+4(-5x-4)=

    asked by Jenny

  147. Math

    . The volume of a rectangular box is given by the expression V = (120 − 6w)w2, where w is measured in inches. a. What is a reasonable domain for the function in this situation? Express the domain as an inequality, in interval notation, and in set

    asked by Anonymous

  148. algebra

    The width of rectangle A is half of its height write an algebraic expression for the width of rectangle a

    asked by brady

  150. Physics

    A child’s toy consists of plastic attached to a spring. The spring is compressed against the floor a distance of 2.46 cm, and the toy is released. The acceleration of gravity is 9.8 m/s2 . If the toy has a mass of 102 g and rises to a maximum height of

    asked by Ke

  151. math

    If f(x) is an even function and passes through the point (5, 3), what other point must lie on the graph of the function? Explain your reasoning.

    asked by Anonymous

  152. Factors

    What factors do 18 and 24 hqve in common

    asked by Vamp 101

  153. Help

    Hpw do i know if a number is divisible by 181

    asked by Vamp 101

  154. Math

    -3(5x-3)-5=

    asked by Jenny

  155. Fraction reduce

    210/10 reduced =?

    asked by Violet

  156. Math

    In its monthly report, the local animal shelter states that it currently has 24 dogs and 18 cats available for adoption. 8 of the dogs and 6 of the cats are male. If two animals are selected at random, what is the probability that both are female cats?

    asked by Priya

  157. Math

    0.375×100

    asked by Violet

  158. physics

    An alpha particle (charge = +2.0e) is sent at high speed toward a gold nucleus (charge = +79e). What is the electric force acting on the alpha particle when the alpha particle is 3.3 ✕ 10-14 m from the gold nucleus?

    asked by jake

  159. Chemistry

    Complete and balance each of the following molecular reactions. Indicate the phase of each species. If no reaction occurs, write N.R. A) ____ Na2CO3 (aq) + ___ Mg (NO3)2 (aq) --> B)____ K2SO4(aq) + ___ Fe(CH3CO2)2 (aq) --> C)___ AlCl3 (aq) +____ K2S (aq)

    asked by Emily

  161. Geomety

    the surface area of a cylinder is 500 square feet; the lateral surface area is 320 square feet. give the area of the base

    asked by Cathy

  162. Chemistry

    Element X has a face-centered cubic unit cell structure. If the density of the element is measured to be 12.4 g/cm^3, what is the atomic radius of X? units are in pm (picometers) MM: 102.9055 g/mol I have done this 4 different times and came up with the

    asked by Amanda L

  163. english

    I need a god thesis for this A good citizen is a great for society. She or he feels that she/he has certain responsibilities towards the state, the responsibilities of being loyal and honest. just as the state has certain responsibilities towards him.

    asked by Dianne

  164. Physics

    Two capacitors C1 and C2 have both area A=0.01m^2 and separation d=0.02mm. Capacitor C1 is filled with a dielectric (dielectric constant k=3.4). Find the equivalent capacitance if the two capacitors are in series.

    asked by Katarina

  165. Chemistry

    If you begin with 34.4 grams of ammonia how many grams of hydrogen and nitrogen can you produce in a decomposition reaction

    asked by Kyla

  166. Math! Please help!

    This is an inequality problem/question. I dont know if I'm right in solving this problem: 15 ≤-k/4-9 (k/4 is a fraction) Please help! I got 5.25 ≤k

    asked by Amy

  167. physicalcs

    A block having a mass of m=15 is suspended via two cables. The angles are as follows: a=19-degree, and b=26-degrees. a) write an expression for the sum of the forces in the x direction in terms of T1, T2, m, g, angle a and b. Use the specified coordinate

    asked by dalia

  168. Algebra

    Identify the property that justifies the statement (5+7)6=30+42 Would this be the distributive property or Inverse Prop of Multi? Kind of confused Thank you

    asked by Angie

  169. Beginning algebra

    How do I write this sentence The product of a number n and eight more than the number As a variable expression? So far I got n+8 but the part "more than the number" threw me off.

    asked by Wyatt K.

  170. algebra

    Please show me how to completely factor the following expression: 5c^2-24cd-5d^2 Thank you

    asked by Anneliese

  172. Physics

    A turntable rotating at 33 1/3 rpm is shut off. It brakes with constant angular deceleration and stops in 26 seconds. Find the average angular acceleration. I took 33 1/3 divided by 26 and then tried to convert to rad/s^2 but I keep getting the wrong

    asked by Zoey

  173. college algebra

    A rock is thrown upward with a velocity of 20 meters per second from the top of a 37 meter high cliff, and it misses the cliff on the way back down. When will the rock be 44 meters from the water, below? Round your answer to two decimal places.

    asked by sharena

  174. college algebra

    A rock is thrown upward with a velocity of 20 meters per second from the top of a 37 meter high cliff, and it misses the cliff on the way back down. When will the rock be 4 meters from the water, below? Round your answer to two decimal places.

    asked by sharena

  175. Pre-Calculus

    explain how to do these with please. I was out a couple of days so give clear instructions. sin(π/2-ϴ)secϴ cot(π/2-x)cosϴ

    asked by Anonymous

  176. chemistry

    Complete combustion of 4.20 g of a hydrocarbon produced 13.4 g of CO2 and 4.81 g of H2O. What is the empirical formula for the hydrocarbon?

    asked by Alex

  177. language arts

    Indicate if past or present participle They have planned their trip carefully. - Past Mira's brother has formed a list of supplies. - Past She has decided on an isolated island. - Past Mira's mother has selected the destination. - Past She was dreaming of

    asked by need help

  178. math

    Monica paid sales tax of $1.80 when she bought a new bike helmet. If the sales tax rate was 9%, how much did the store charge for the bike helmet before tax?

    asked by jahshai

  179. Math

    A recipe calls for 2/3 cup of sugar for every 4 teaspoons of vanilla. What is the unit rate in teaspoons per cup? Explain your answer.

    asked by Help

  180. Pre calculus

    explain how to do these with please. I was out a couple of days so give clear instructions. 1. sin(π/2-ϴ)secϴ 2. cot(π/2-ϴ)cosϴ

    asked by save me

  181. Economics

    I don't get when to use the 7.65% and then the 1.45% How do you calculate the following below...given: number of hours worked-952 Hourly pay- $120.50 ______________________________ A. Gross pay for the year B. FICA Taxes C. Federal Income Tax D. Net Pay

    asked by Allie

  183. language arts

    Since dream is an irregular verb then the sentence: She was dreaming of a swimming pool is Present Participle not Past Participle - correct?

    asked by need help

  184. Physics

    A 1140 kg car traveling south at 24 m/s with respect to the ground collides with and attaches to a 2550 kg delivery truck traveling east at 16 m/s.

    asked by Andrew

  185. algebra

    Cindy put 1and 2 thirds cups of peanuts and 1 and 3/5 cups of popcorn into a bag what's the expression represents the total number of cups of peanuts and popcorn Cindy took to camp

    asked by Tina

  186. math

    A cheese pizza costs $5. Additional toppings cost $1.50 each. Write and graph an equation in two variables that represents the total cost of a pizza. Let tt represent the number of toppings and cc represent the total cost of the pizza.

    asked by kile

  187. Chemistry

    When heated, KClO3 decomposes into KCl and O2. If this reaction produced 79.9 g of KCl, how much O2 was produced (in grams)?

    asked by Nicole

  188. Precalculus

    Compute the distance between the parallel lines given by \[\begin{pmatrix} 1 \\ 4 \end{pmatrix} + t \begin{pmatrix} 4 \\ 3 \end{pmatrix}\] and \[\begin{pmatrix} -5 \\ 6 \end{pmatrix} + s \begin{pmatrix} 4 \\ 3 \end{pmatrix}.\]

    asked by Zheng

  189. algebra

    The length of a rectangle is 4 inches more than twice the width. If the area of the rectangle is 48 square inches, what is the length of the rectangle? SHOW WORK. Thank you!!

    asked by Tim

  190. American Government PLEASE CHECK MY ANSWER!!

    6. The constitutional prohibition against laws respecting an establishment of religion must at least mean that, in this country, it is no part of the business of government to compose official prayers for any group of the American people to recite as part

    asked by Ana

  191. Social studies

    Which of the following as a consequence of the second industrial revolution? A. Disease size quickly due to poor medical care. B. New sewer systems decreased death rate. C. Skyscrapers caused air pollution. D. Protests increased due to narrow. Is the

    asked by Gwen

  192. physics

    A crate with a mass of (111.5) kg is lifted by a crane. If the crate is accelerating upward at (2.7) m/s2, what is the tension in the cable? Give your answer in newtons (N) and with 3 significant figures.

    asked by dalia

  194. Dependent and Independent variables

    Use the equation y=2x+2 for this problem. a. Create an input/output table. b. Graph the ordered pairs from the table. c. Describe each of the variables as the independent or the dependent variable

    asked by Betzy
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