Answers edited by Zero Two

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• What is the distance between #(1,-4)# and #(7,5)#?
  
• Question #1a993
  
• Question #0417a
  
• Question #95e73
  
• Question #c603e
  
• Question #7013e
  
• What is #4/5 -: 6 2/3#?
  
• Question #59932
  
• How to find the coordinates at the point which #f(x) = f^-1 (x)#?
  
• Question #f28ef
  
• How do you simplify #28 ÷ 4 • 3#?
  
• What prevents blood from mixing between atria and ventricles?
  
• Question #6a733
  
• Within a cell, proteins are synthesized on particles called rhibozomes.Assuming rhibozomes r spherical,what is the volume in dm^3(cubic decimeter)of a rhibozome whose radius is 10.4nanometers? thanks
  
• How do you define the word stoichiometry and where does the origin of this word come from?
  
• Question #792c1
  
• Question #4edaf
  
• What causes one side of heart to be larger than other side?
  
• What is the equation of the line passing through #(97,26)# and #(10,34)#?
  
• How do you solve for x in the equation 3sin2x-1/3sinx=0 and x in in the interval of [0,2pi)?
  
• Is dry skin a deficiency symptom of vitamin A?
  
• Question #a0622
  
• A rhombus has sides #8 cm# in length and its shortest diagonal is #10 cm# in length. What is the area of the rhombus to the nearest #cm^2#?
  
• Any good fantasy and school appropriate book suggestions?
  
• How do you solve #12x^2=-11x+15# by graphing?
  
• Question #f369e
  
• If the fundamental theorem of algebra is correct , then why i am bein taught discriminant less than 0 for quadratic equations mean no real roots ? (i m a 10th standard student who was taught about polynomials and quadratic equations)
  
• Question #25791
  
• Question #5a9ed
  
• How do high pressures favour the formation of ammonia in dinitrogen reduction?
  
• How many daughter cells are produced from meiosis of one parent cell?
  
• What are lymphocytes and why are they important to immunity?
  
• How do you simplify the expression #8sqrt(5/4)+3sqrt20-10sqrt(1/5)#?
  
• How are valence electrons related to oxidation state?
  
• How do you write 1/8 as a percent?
  
• Question #16c23
  
• In reaction: 2H₂O(g)⇌2H₂(g)+O₂(g); ∆H=+242 kJ/mol In which direction the equilibrium shifts, if: a. Temperature is increased? b. Temperature is descreased? c. H₂ is added? d. O₂ is reduced? e. Pressure is enlarged?
  
• Question #02e27
  
• Question #a6f67
  
• What is the relationship between trophic levels and biomass in terms?
  
• #2x^3-7x^2-2x+7#? How to factor it completely?