Answers created by IZUkuABA

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• How do you solve the following system?: #13x+2y=9 , 5x - 2y = 1 #
  
• How do you differentiate #f(x)=(2x^3)(cos^2x^2) # using the product rule?
  
• How do you simplify #(x+1)/(x-1)=2/(2x-1)+2/(x-1)#?
  
• How do you simplify #55.3 + 0.2 + 23.8 + 0.7#?
  
• The length of the shadow of a pillar is increased by #60m# when the angle of elevation of the sun becomes #30^@# from #45^@#. Find the height of the pillar ?
  
• How do you solve #- 7< 5 - 2y <= 1?#
  
• How do you solve the simultaneous equations #2x +4y = 8# and #-5x +3y = 5#?
  
• The sum of three numbers is 98 . The third number is 8 less than the first. The second number is 3 times the third. What are the numbers?
  
• How do you differentiate #g(x) = (x-7)(x^2+3)# using the product rule?
  
• How do you factor #216 - x^3#?
  
• How many protons does a sodium atom have?
  
• Electron configuration?
  
• How do you solve the system of equations by graphing and then classify the system as consistent or inconsistent #x+2y=4# and #2x+4y=8#?
  
• Determine the first and last terms of an arithmetic series with 50 terms, a common difference of 6, and a sum of 7850. Help?
  
• How many unpaired electrons are in a Mn atom?
  
• The successive ionization energies of an element A are as follows?
  
• A projectile is projected at an angle of 15° to the horizontal with speed v. If another projectile is projected with the same speed,then at what angle with the horizontal it must be projected so as yo have the same range?
  
• How do you solve #|x+45| = -6#?
  
• Why Cu and Cr possesses exceptional confuguration???
  
• How do you solve #(x-4)(x+3)<0#?
  
• Draw the graphof leniar equation x+y=4?
  
• How do you solve the system of equations: y=2x+1 and y=4x-1?
  
• Among the atomic properties electronegativity, ionisation potential and electron affinity which are affected by stable electronic configuration?
  
• How do you solve the system : #x-3y=-2#, #4x-2y=-8 #?
  
• How do you find the solution to the quadratic equation # 0 = x^2 + 5x + 6#?
  
• 3 sin theta+5 cos theta=5,then the value of 5 sin theta - 3 cos theta is?
  
• Valence shell of sodium?
  
• What is the derivative of #e^(2x)#?
  
• How do you simplify #2/3 + 5/6#?
  
• How do you solve #d + e = 6# and #d- e = 4#?