Answers created by HCH

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• Which alkane would have only primary and tertiary carbon? A) Pentane B) 2- Methybutane C) 2,2 - Dimethyl propane D) 2,3 - Dimethyl butane
  
• Question #063b3
  
• Question #bf123
  
• How do you find the vertex for #y=x^2+6x+7#?
  
• How do you solve #10= \frac { K ( 15,000) } { 8}#?
  
• A 2.50 kg wood block is pressed against a vertical wood wall by a force applied 34.9° to the horizontal. If the block is initially at rest, and μs=0.493, what force would you need to apply to begin moving the box up the wall?
  
• Question #85512
  
• How do you use cross products to solve #6/9.6=9/d#?
  
• At standard temperature and pressure, 1 mole of gas has what volume?
  
• Question #0d56e
  
• A 400-kg bear grasping a vertical tree slides down at constant velocity. What is the friction force that acts on the bear?
  
• The Grand Canyon is 1800 meters deep at its deepest point. A rock is dropped from the rim above this point. What is the height of the rock as a function of time, t in seconds? How long will it take the rock to hit the canyon floor?
  
• Question #4f2b1
  
• A projectile is shot from the ground at an angle of #pi/12 # and a speed of #7 /18 m/s#. Factoring in both horizontal and vertical movement, what will the projectile's distance from the starting point be when it reaches its maximum height?
  
• How do you differentiate #F(y)=(1/y^2-3/y^4)(y+5y^3)#?
  
• Question #f7e61
  
• Question #6dd8d
  
• Given the matrices #A=[(5,7),(-1,6), (3,-9)], B=[(8,3), (5,1), (4,4)], C=[(0,4),(-2,5), (7,-1)], D[(6,2), (9,0), (-3,0)]#, how do you find C+1/3D?
  
• Question #2815c
  
• How do you rationalize the denominator and simplify #2/sqrt5#?
  
• Question #cd403
  
• Question #921bb
  
• A triangle has sides A, B, and C. The angle between sides A and B is #(pi)/2#. If side C has a length of #23 # and the angle between sides B and C is #pi/12#, what is the length of side A?
  
• A triangle has sides A, B, and C. Sides A and B are of lengths #3# and #1#, respectively, and the angle between A and B is #pi/12#. What is the length of side C?
  
• Question #e6fa5
  
• How do you solve the system by graphing #4x - 2y = -12# and #2x + y = -2#?
  
• Question #7c02d
  
• Question #6f35a
  
• Question #847bf
  
• An object with a mass of #21 g# is dropped into #250 mL# of water at #0^@C#. If the object cools by #160 ^@C# and the water warms by #12 ^@C#, what is the specific heat of the material that the object is made of?
  
• Question #31ddd
  
• How do you write the equation given (-6,7); parallel to 3x + 7y = 3?
  
• How do you find the roots, real and imaginary, of #y=-(x+5)^2+2x^2 + 5x - 12 # using the quadratic formula?
  
• Alvin is 12 years older than Elga. The sum of their ages is 96. What is Elga's age?
  
• How do you factor #2x^2-x-3#?
  
• A model train, with a mass of #4 kg#, is moving on a circular track with a radius of #15 m#. If the train's kinetic energy changes from #32 j# to #24 j#, by how much will the centripetal force applied by the tracks change by?
  
• How do you solve the equation #abs(3x-3)=8#?
  
• How do you graph two cycles of #y=-2tan(4theta)#?
  
• Question #fb874
  
• Question #58f16
  
• How do you solve #-[ x - ( - 7x + 4) ] = 6- ( - 4x + 7)#?
  
• Question #c843a
  
• Find a vector which is perpendicular to both vector A and B, where A=2i+3j+4k B=i+2j+3k?
  
• Question #351f7
  
• How do you differentiate #f(x)=x^2e^(x-1)# using the product rule?
  
• What is the standard form of # y-3x= (2x-3)(x+9)^2-6x^3#?
  
• How do you find the possible values for a if the points (a,6), (-6,2) has a distance of #4sqrt10#?