Answers created by Loweena Gonasegaran

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• `1^3-2^3+3^3-4^3...+9^3=?`
  
• How do you add `4 1/7 + 2/7`?
  
• How do you multiply `(5 + x)(2x + 10)`?
  
• The first term of a geometric sequence is 40, and the common ratio is 0.5. What is the 5th term of the sequence?
  
• What are the phases of mitosis?
  
• While rowing across the lake during a race, John does 3,960 J of work on the oars in 60.0 s. What is his power output in watts?
  
• What are biotic factors in ecology?
  
• An atom has 18 protons, 18 electrons, and 20 neutrons. This atom has _____. A) a negative charge B)an atomic number of 20 C)a mass number of 38 D) a positive charge Which one of these is the answer?
  
• What is `f(x) = int (x-3)^2-3x+4 dx` if `f(2) = 4`?
  
• A weight lifter lifts an 800 N bar a distance of 3 m is just 3.5 seconds. What is the power output of the lifter in watts?
  
• Please solve q 9?
  
• How do you evaluate the power `(-4/11)^2`?
  
• What is the perimeter of a triangle with corners at `(6 ,5 )`, `(8 ,2 )`, and `(4 ,7 )`?
  
• Why left ventricle is thicker than the right ventricle?
  
• The area of a rectangular door is given by the trinomial `x^2 – 14x + 45`. The door’s width is `(x – 9)`. What is the door’s length?
  
• What is the standard form of `y= (3x-1)(7x-2)(x+1)`?
  
• How do lymphocytes and phagocytes kill pathogens?
  
• What are some examples of muscle tissue?
  
• What are some pros and cons of using wind energy?
  
• How do you solve the system of equations `-2x + 2y = - 12` and `- 2x - 3y = 13`?
  
• What is the standard form of `y= (2x+14)(x+12)-(7x-7)^2`?