Answers created by Gió

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• How do you find the derivative of #sin (2x+3)#?
  
• One water pipe fills a swimming bath in #x# hours. A second pipe takes #3# hours longer to fill the bath. The two pipes together fill the bath in two hours. How long will it take each pipe to fill the swimming bath separately?
  
• How do you convert -0.2 to a fraction in simplest form?
  
• How do you solve this Determinant?
  
• Why the light ray bend towards the normal when it enters from rarer to denser medium and vice versa?
  
• How much work would it take to push a # 5 kg # weight up a # 2 m # plane that is at an incline of # pi / 3 #?
  
• How do you find the derivative of #y =sqrt(5x)#?
  
• What are the three laws of thermodynamics?
  
• An object weighing 80N on surface of earth will weigh 20N at how much distance from the center of earth?
  
• When is #2/(x-1)# defined?
  
• How much work does it take to raise a #33 kg # weight #89 m #?
  
• How do you convert 45.6 milliliters to liters?
  
• Please help with the image below.(?)
  
• The movie starts at 3:15p.m and ends at 5:08 p.m how long is the movie?
  
• How do you draw #45^circ# and #-45^circ# in standard position and then show that #cos(-45^circ)=cos45^circ#?
  
• A 100g object is falling freely under gravity in absence of friction what will be the net force on it after 2 seconds?
  
• How do you rationalize the denominator and simplify #5/(sqrt6-2)#?
  
• A 1.0x10^5 N truck moving at a velocity of 15 m/s north collides head-on with a 1.0x10^4 N car moving at a velocity of 25 m/s south. If they stick together upon impact, what is the velocity of the combined masses?
  
• How much work would it take to push a # 14 kg # weight up a # 2 m # plane that is at an incline of # pi / 6 #?
  
• How can I calculate rotational speed?
  
• Oil is flowing in a circular pipe of varying cross-sectional area and at all points the oil completely fills the pipe. (a) At one point in the pipe the radius is 30cm,what is the magnitude of the oil velocity if the flow rate is 1.20mcube/s?
  
• Kinematics in 2D Word Problem Help?
  
• How would i solve this problem?
  
• How do you solve #\log _ { 2} - m = \log _ { 2} 5m#?
  
• Why did so many Europeans take to the roads and wander the countryside after the war?
  
• How to answer question no .1 ?
  
• A person is standing halfway between two trees that are 3m apart. The angle of elevation to the tops of the trees are 42° and 36°. How much taller is one tree over the other?
  
• A carpenter leans an extension ladder against a house to reach the bottom of awi now 30 feet above the ground as shown in the diagram below the ladder makes a 70° angle with the ground to the nearest foot determine and state the length of the ladder?
  
• A company manufactures and sells DVD's. Here are the equations they use in connection with their business. Number of DVD's sold each day: n(x)=x Selling price for each DVD: p(x)=11.5−0.07x Daily fixed costs: f(x)=160?
  
• How do you solve #6e^(-4k-10)-4=63#?
  
• The distance #d# in miles that can be seen on the surface of the ocean is given by the formula # d=1.4 sqrt(h)# where #h# is the height in feet above the surface of the water. How high above the water would a pirate have to climb to see 16 miles?
  
• How do you solve #\frac { x + 3} { x + 4} = \frac { x + 4} { x + 6}#?
  
• A 35 ft pipe is cut into three pieces. The longest piece is three times longer than the shortest piece. The medium-sized piece is 5 feet longer than the shortest piece. How long is each piece?
  
• The particles in a wave are moving up and down in comparison to the ground. What best describes the wave producing this motion?
  
• How do you solve #3^(x+2) = 10^(x-1)#?
  
• The sum of the squares of two positive numbers is 80 and the difference of the squares of the numbers is 48. How do you find the numbers?
  
• What is the meaning of the base of the function #y=-log(x)#?
  
• Please help with math?
  
• How to do this?
  
• How do you solve #sqrt(10h)+1=21# and check your solution?
  
• At Burton's Pizzeria, a pizza with 2 toppings cost $10.50 and a pizza with 5 toppings cost $14.25. How do you write an equation that represents the relationship between the number of toppings and the cost of pizza?
  
• How do I solve this? Write the following complex number in trigonometric form. Write the argument in radians, and if possible, use the exact form. Otherwise, use a decimal approximation rounded to the hundredths place. -√ 2 − 4i
  
• How do you long divide #(8a^2 - 30a + 7) div (2a - 78)#?
  
• The side length of an equilateral triangle is 20cm. How do you find the length of the altitude of the triangle?
  
• Which inequality is true? #9/pi# > 3, #pi# + 2 < 5, 6 #pi# > 18, or #pi# - 1 < 2
  
• What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is 0.80?
  
• Why boiling point of a liquid remain constant although heat is continuously supplied to the liquid?
  
• How do you solve #logy = log16 + log49#?
  
• How do you divide #(x^3 - x^2 - 7x - 1) / (x+3) # using polynomial long division?
  
• How do you solve the following linear system: # - 12x + y = 15 , 3x + 2y = 3 #?
  
• Tim is 10 years old. His sister Amy is 4/5 Tim's age Tim's mum is 4.25 times as old as Amy. How old is Tim's mum?
  
• Is it my imagination, or have a lot of contributors jumped the Socratic ship already?
  
• How do you find the inverse of #g(x)= log_8(4 x+6)#?
  
• When the Soviets went to Afghanistan Why did other countries help the Afghan rebels if the government of Afghanistan at the time asked for its help?
  
• How do you divide #(10x^3-11x^2+19x+10)/(5x+2)#?
  
• If you were given a radian e.g. 3pi/4, how were you to know whether to use sin, tan or cos when finding the exact answer?
  
• What is the mathematical relationship between wavelength and frequency?
  
• How do you solve #5x - 2< 8#?
  
• What is the limit of #(x^2-1)/(x-1)# as #x# approaches 1?
  
• How do you solve #7+sqrt(8-x)=12# algebraically and graphically?
  
• What is the limit as x approaches 1 of #5/((x-1)^2)#?
  
• Ben rents a car for one day. The charge is $20 plus the $0.12 per mile. He wants to spend exactly $80. How many miles can he drive?
  
• What is a real world situation that can be modeled by an inverse variation equation?
  
• How to measure the diameter of a hole?
  
• Why #log_(2)^2x(5/(log_(2)3*log_(2)4)+1/log_(2)^(2)5)=0# equal to #log_(2)^2x=0#?
  
• A mooring pole for a boat has one-third of its length in the sea-bed and one-sixth of its length in the water at low tide. At high tide, the top of the pole is 1 metre out of the water. If there is a 2-metre difference between? (continue in Details)
  
• If the length of a #47 cm# spring increases to #69 cm# when a #2 kg# weight is hanging from it, what is the spring's constant?
  
• 2/3 of a pizza are left over. a group of friends divided the leftover pizza into pieces each equal to 1/18 of the original pizza. After each friend took one piece 1/6 of the leftover pizza remained. How many friends were in the group?
  
• What process transfers heat by electromagnetic waves?
  
• Given the equation Q equals Q sub zero times e to the quantity negative t over R C, rearrange the equation to solve for t?
  
• How do you factor # 36m^2-132mn+121n^2#?
  
• Thoughts on the recent announcement made about the future of the Socratic website? Share them here!
  
• A swimming pool is 1 meter deep at the shallow end and 3 meter deep at the deep end.to a person standing on the edge of the shallow end, the depth of the pool seems approximately the same everywhere. Explain and give a diagram?
  
• How do you find #int(e^-x)/(1+e^-x)dx#?
  
• An open-top box with a square base has a surface area of 1200 square inches. How do you find the largest possible volume of the box?
  
• The equation #3x+1.5y = 30# describes the number of burgers and hot dogs a family can buy with $30. What are the intercepts of the equation, and what does each represent?
  
• Can u help me with this ?
  
• Can someone help me answer this question? 'find the exact value of Cos theta, given sin theta = 5/9 and cos theta < 0
  
• If a girl 1.2 meters tall casts a shadow 2 meters long, how many meters tall is a tree that casts a shadow 75 meters long at the same time?
  
• Are there experiments in which scientists can recreate aspects of the Big Bang?
  
• How do you write an equation of a line passing through (3, 2), perpendicular to # y=5x + 2#?
  
• What is x if #log_2(x) + log_3(x + 1) = log_5(x - 4)#?
  
• What is first law of thermodynamics?
  
• The population of rabbits in an area is modeled by the growth equation P(t)=8e^0.26t, where P is in thousands and t is in years. How long will it take for the population to reach 25,000?
  
• Physics :- Motion in a straight line ....... HELP?
  
• 1. Estimate the area of the irregular shape. Explain your method and show your work? I don't know to to solve this.
  
• A farmer is building a new cylindrical silo with a flat roof and an earthen floor that will hold #20000 m^3# of corn. What dimensions of the silo will minimize the materials required for construction?
  
• You buy 3 T-shirts and 2 pairs of shorts for $42.50. Your friend buys 5 T-shirts and 3 pairs of shorts for $67.50. What is the cost of each T-shirt?
  
• The measures of a sphere with a volume of 972pi in^3 are multipled by 1/3. what is the volume of the sphere?
  
• Why does a microscope slide need to be transparent?
  
• My cousin borrowed $15,000 for a new car loan for 5 years. He told me that at the end of the loan, he had paid $21,000 for the interest and principal. What was the rate of the loan? A. 7% B. 8% C. 9% D. 10%
  
• In 1995, Swiss banks came under pressure from Jewish organizations to search for assets belonging to victims of _______?
  
• How do you simplify #6/(3-3i)#?
  
• Why aluminium tools are not affected by air and water?
  
• I need some help please?
  
• How much heat is needed to raise the temperature by 10 0C of 5 kg of a substance of specific heat capacity 300 J/ (kg 0C)?
  
• Moving problem?
  
• How do you solve this?
  
• How will you compare 2 ratios: 5/4 and 11/10 in a visual diagram form?
  
• You're conducting a physics experiment on another planet. You drop a rock from a height of 2.1 m and it hits the ground 0.6 seconds later. What is the acceleration due to gravity on this planet?
  
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