Answers created by David B.

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• How do I find the Voltage on these 2 diagrams?
  
• Assume that a normal distribution has a mean of 21 and a standard deviation of 2. What is the percentage of values that lie above 23?
  
• What do cosmologists work on during their day to day job?
  
• What will the acceleration of the ping pong ball be as it falls in a vacuum on Earth?
  
• Determine the maximum height a baseball reaches as it is hit if its height can be represented by a function s(t)= -5t^2 +55t +2?
  
• Darrin Newberry's charge account statement shows an unpaid balance of $875. The monthly finance charge is 1.65% of the unpaid balance. What is the new account balance?
  
• Data Management combinations ?
  
• How do you simplify #(8-x)/(x^2-7x-8)#?
  
• How do solve the following linear system?: # 6x=29-8y , 3y = 1 -x #?
  
• How do you solve #\frac { 1} { x - 2} + \frac { 3} { x + 3} = \frac { 4} { x ^ { 2} + x - 6}#?
  
• How do you solve for x in #3/(2-x)=4#?
  
• How do you solve #x= \log _ { 10} \root(6) { 10}#?
  
• How do you find a polynomial function that has zeros #x=9# and degree n=3?
  
• The number of square inches of a circled area is equal to the number of inches of its circumference. What is the radius of the circle?
  
• An empty tank is filled with water at the rate of 200 cc per second. The dimensions of the tank are 2 m by 3 m by 4 m. What fraction of the tank is filled after two hours?
  
• Make an equation and solve x? (Quadratic Equations)
  
• How much current is being supplied by the current source? What is the power absorbed by the conductor?
  
• Area between curves?
  
• Question #e4a64
  
• Question #7261e
  
• Question #bf49c
  
• The purchase price of a camera is $84. The carrying case is 12% of the purchase price. Tax is 6% of the subtotal. What is the total cost for the camera and case plus tax?
  
• How to find the values of k?
  
• How do you solve # |.5x+9|–x+3<0#?
  
• Question #26c96
  
• How can someone become others collaborator?
  
• Question #eb96f
  
• Question #12750
  
• Question #81661
  
• Question #dbf21
  
• Question #fefb2
  
• A new LCD high definition TV has a power consumption of 128 watts when operating at 120 volts. How much energy, in kilojoules, would be used in 2.5 hours?
  
• Question #44455
  
• Question #2e973
  
• Question #325c0
  
• Question #9d0d0
  
• I'm trying to find the real zeros and put it in factored form, but I can't get it right. A\N is f(x) = (x-1)(3x-1)(x-i)(x+i). How do I get (3x-1)?
  
• What can a chi-squared distribution be used to describe?
  
• How do you find YX given #X=[(4,1), (-2,6)]# and #Y=[(0,-3)]# and #Z=[(-1,3), (0,-2)]#?
  
• Question #a1f9f
  
• Question #1ac69
  
• Question #6cb27
  
• Question #7b342
  
• Question #7b342
  
• A wrench with a length of #35 cm# is being used to unscrew a #7/2 cm# bolt. If a torque of #36 Nm# is needed to overcome the friction keeping the bolt in place, what is the minimum torque that must be applied to the wrench to unscrew the bolt?
  
• Question #dfd45
  
• How do you solve the equation #tanG=0.125#?
  
• Question #810f4
  
• The sum of all integers between 100 and 500 that are divisible by 3?
  
• What is the cumulative distribution function of a chi-squared distribution?
  
• Sociologists say that 95% of married women claim that their husband's mother is the biggest bone of contention in their marriages. Suppose that six married women are having coffee together. What's the probability all of them dislike their mother-in-law?
  
• Is #y = -x - 1# a direct variation equation and if so what is the constant?
  
• If 2 spring balances are tied to each other and pulled horizontally apart, we will see that the reading in both is same. Then... (contd.)?
  
• Question #1b4c6
  
• What is the GCF for 8, 18 and 70?
  
• How do I use the formula P (in) = #pQgh#?
  
• Question #13a58
  
• Question #eceda
  
• Is #(sqrt(-1))x = 0 # a Polynomial?
  
• Question #f5060
  
• How do you solve #-4( 5+ 8n ) - ( 5n - 4) = 1- 3n - 5n#?
  
• Question #9b5cb
  
• Question #420d4
  
• Question #c9b52
  
• Question #879f1
  
• What is the equation of the tangent line of #f(x)=sqrt((x-1)^3e^(2x) # at #x=2#?
  
• Question #427ae
  
• Is it possible for the product of two non-zero vectors to be zero?
  
• #f(x)=x^2#. The graph of #f# is shifted vertically #3# up, and then scaled vertically by a factor of #5#. The result is the graph of #ax^2+bx+c# where #a = 5, b= 0# and #c=# ?
  
• How do you graph the system of linear inequalities #y>=0# and #x<=9# and #x+y<15# and #y<x#?
  
• Question #bff89
  
• What did Newton discover about gravity?
  
• If momentum of an object is doubled, then what is the change in its kinetic energy?
  
• Does life violate the second law of thermodynamics?
  
• In a circuit which has a DC power supply, a metal filament lamp and an ammeter connected. Does dividing by 2 the EMF of the DC power supply also halves the current?
  
• Question #40235
  
• Question #92420
  
• What causes reflection?
  
• Jameson received four grades on his algebra tests, bringing his average to an 88 for that class. What grade would he have to have on his last test in order to bring his average up to 90?
  
• How do you solve #3x - 5> - 2#?
  
• How do you find the exact relative maximum and minimum of the polynomial function of #f(x)= 2x^3-3x^2-12x-1#?
  
• How do you solve the quadratic using the quadratic formula given #9x^2-11=6x#?
  
• A projectile is shot from the ground at a velocity of #6 m/s# and at an angle of #(5pi)/6#. How long will it take for the projectile to land?
  
• Question #afdb4
  
• If #3/7 L# of a gas at room temperature exerts a pressure of #24 kPa# on its container, what pressure will the gas exert if the container's volume changes to #5/4 L#?
  
• What is an F-test for the equality of variances?
  
• How do you graph #-2|x+5|+4=2#?
  
• How do you find all zeros of the function #f(x)=x^3+3x^2-34x+48#?
  
• How do you solve #log_2(x/2)=5#?
  
• What is the Gaussian function?
  
• What are the variance and standard deviation of {1, 1, 1, 1, 1, 80, 1, 1, 1, 1, 1, 1}?
  
• Question #576a4
  
• What are the units of a half-life?
  
• What is the value of Sin^2 (pi/2) - cos (pi)?
  
• A sample of U-238 initially contained #1.3x10^18# atoms when the universe was formed 13.8 billion years ago, how many U-238 atoms will it contain today?
  
• Is the angle of the axis that the earth rotates on created by or affected by the sun?
  
• What is the standard deviation of the data set #11, 5, 12, 8, 5, 12, 10# rounded to the nearest tenth?
  
• How do you simplify #sqrt(z^3)sqrt(z^7)#?
  
• Three numbers are in the ratio 2:3:4. The sum of their cubes is 0.334125. How do you find the numbers?
  
• The mass of a killer whale is 950,000,000 milligrams. What is its mass, in kilograms, expressed in scientific notation?
  
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