Answers edited by MAXIMILIAN C.

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• What are the important points to graph #y=sin 2x#?
  
• Is there a way to search for unanswered questions of members from particular countries so that one might be able to expand on the number of different countries in which one helps students? And how to do so?
  
• How do I find the angle of AHC?
  
• Simplify the rational expression. State any restrictions on the variable? Please check my answer and explain how I get to my answer. I know how to do the restrictions its the final answer that I'm confused about
  
• Can alternate interior angles be supplementary?
  
• How do you find the slope and y intercept to sketch #5x-2=0#?
  
• Simplify the rational expression. State any restrictions on the variable? Please check my answer/correct it
  
• Given theta = 3pi/4 How does one calculate cos^2 theta, cos(-theta), and cos(2) theta?
  
• What are the odds and probability of rolling 5 dice, and all 5 dice are the same number?
  
• You have a pitcher that holds 39.3 oz of lemonade. If each glass holds 8.8 oz, how many glasses can you completely fill?
  
• Could someone please help me solve this?
  
• How do you solve #12x=-88#?
  
• One side of a rectangle is 6 longer than the adjacent side. The area is 187. What are the dimensions?
  
• A rectangular room measures 12ft by 15ft. the entire room is to be covered with rectangular tiles that measures 5in by 4in. if the tiles are sold for &2.50 a dozen what will it cost to tile the room?
  
• Help with precalc homework?!
  
• What is x in #x^2018+1/x=x^2017+1# equal to?
  
• How do you find the domain and range for #y = 3 cos 4x#?
  
• Given θ = 60∘, 0∘ < α < 360∘ and α ≠ θ, find α, such that:?
  
• A river boat travels from port A to port B, a distance of 15.0 km downstream, in 1 hour 40 minutes. The return journey takes 2 hours 30 minutes. Calculate: (a) the boat speed relative to the water? (b) the speed of the river?
  
• If a rectangle measures 8 feet on the short side and 9.8 on the long side . what is the area of the rectangle in square feet?
  
• Is 193 a perfect square?