Answers created by Eric C.

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• Question #723ce
  
• Determine the energy of a photon whose frequency is 5.28 × 1017 Hz?
  
• How do you solve `5/(2x) = 25/4`?
  
• Question #b9d0a
  
• Question #90311
  
• Question #c16e1
  
• How do you simplify `(y ^ { 3} - 2y ^ { 2} - 3y + 4) - ( 2y ^ { 3} - y ^ { 2} + y - 3)`?
  
• What do the slope and intercept represent in a Mass vs 1/acceleration graph?
  
• Question #a819f
  
• Question #2fdbe
  
• How do you solve `20+25x=345`?
  
• How do you integrate `\int _ { 0} ^ { \pi } ( 8e ^ { x } + 6\sin ( x ) ) d x`?
  
• How do you solve `2( 2e - 8) + 5e = 29`?
  
• Question #21940
  
• How do you sketch `y = 3 sin 2 (x-1)`?
  
• How do you graph `y+1<4`?
  
• How do you simplify `sqrt(2x)*sqrt(15)`?
  
• A model train with a mass of `7 kg` is moving along a track at `15 (cm)/s`. If the curvature of the track changes from a radius of `24 cm` to `45 cm`, by how much must the centripetal force applied by the tracks change?
  
• How do you graph `y =-3/7x-1/7` using the slope and intercept?
  
• A model train, with a mass of `8 kg`, is moving on a circular track with a radius of `1 m`. If the train's rate of revolution changes from `5/3 Hz` to `1/4 Hz`, by how much will the centripetal force applied by the tracks change by?
  
• How do you solve `3/x=7/10`?
  
• How do you find the vertex and the intercepts for `y=-x^2+4x+12`?
  
• How do you find the domain of `f(x)=sqrt(4-x)`?
  
• How do you solve `(x-2)/2 <=3`?
  
• A model train with a mass of `2 kg` is moving along a track at `18 (cm)/s`. If the curvature of the track changes from a radius of `9 cm` to `12 cm`, by how much must the centripetal force applied by the tracks change?
  
• What is the mean of the numbers 21, 23, 76, 47, 55, 135, 45, 30, 17?
  
• What is the equation of the line that passes through (2, 1) and (5, -1)?
  
• A high school athlete runs `1.00 * 10^2` `m` in `12.20` `s`. What is the velocity in `m``/``s` and `km``/``h`?
  
• How do you solve `2x + 7> 17`?
  
• How do you solve `x^2 - 6x + 6 = 0` using the quadratic formula?
  
• How do you graph the line `y = 4x + 3`?
  
• How do you find the slope of the line that passes through `(52, 76)` and `(51, 78)`?