Answers edited by Hope It Helps

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• Is sine, cosine, tangent functions odd or even?
  
• How do you write 4.2 as a percent?
  
• In a survey of teens, 42% said their friends do not like others talking during class when they are working on an assignment because it is distracting. How many teens out of 1,095 teens are able to ignore distractions by others?
  
• How do you solve #8( 5w - 20) = 20+ 20w#?
  
• What is the lcd of 5,15,and 60?
  
• How do you solve #log_2 (x) + log_2 (x+6) = 3#?
  
• Given the function #f(r)=sqrt(r+1)-5#, what is f(-1)?
  
• X is less than 6 and greater than or equal to -1 how do I write this?
  
• Let f(x) = x2 − 4 and g(x) = 4x − 3, how do you find (f − g)(−6)?
  
• How do you solve #7n ^ { 2} + 3n - 2= 0#?
  
• How do you find the x-int, y-int and graph #f(x)= 2x^2 - 4x +1#?
  
• The length of a leg of an isosceles right triangle is #5sqrt2# units. What is the length of the hypotenuse?