Answers edited by 1s2s2p

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• Find the first 3 and last 3 terms in the expansion #(2x-1)^11# using the binomial theorem?
  
• Please help?! Geometry
  
• Question #14d05
  
• Show that if #a, b, and c# are all odd integers then the quadratic #ax^2 + bx + c = 0# has no solution in the set of rational numbers?
  
• I need help with this yr 9 algebraic question please?
  
• Pg 24, q51. How do I figure this out? thanks
  
• Which ΔS do you use to decide spontaneity?
  
• Question #572cf
  
• How do you simplify #2( 4x - 5) + 5( - 2x + 3)# as a binomial?
  
• Help please thanks?!
  
• How do i solve this?
  
• How do you simplify #tan(arccos(x/3))#?
  
• Question #59d74
  
• What is zwitter ion?
  
• If #f(x) = 6x - 4# and #f(a) = 26#, what is the value of #a#?
  
• How do you simplify #(6i)(-8i)#?
  
• How do you solve #\frac { \tan \theta - \tan 27^ { \circ } } { 1+ \tan \theta \tan 27^ { \circ } } = 1#?
  
• Question #8cf3a
  
• How do you find the derivative of #(x^8(x-23)^(1/2))/(27x^6(4x-6)^8)#?
  
• What's the domain of ?
  
• Question #25a8e
  
• How do you divide #(-2x^4+x^2+8x-7)/(5x-2)#?
  
• Prove #cos(x)+sin(x)tan(x)=sec(x)#?
  
• What is AE ? Enter your answer in the box. _____units
  
• An object with a mass of #4 kg# is hanging from a spring with a constant of #2 (kg)/s^2#. If the spring is stretched by # 8 m#, what is the net force on the object?
  
• Question #0f12e
  
• Question #6d042
  
• How do you find the inverse of #f(x)=sqrt(3x) # and is it a function?
  
• How do you use the Binomial Theorem to expand #(x + 1)^4#?
  
• Explain why the relative atomic mass of chlorine is not a whole number?
  
• How do you solve and graph # 2x+9<16#?
  
• How would you determine the magnitude of the magnetic force on a #120 m# length of line?
  
• How to expand and simplify this expression by using binomial theorem?
  
• How do you find #(dy)/(dx)# given #sqrty+xy^2=5#?
  
• Question #86352
  
• If lithium has a first ionisation energy of #520# #kJ# #mol^(-1)#, estimate the energy required to form 1 #Li^+# ion from 1 Li atom?
  
• What does a logarithmic function look like?
  
• What are the gas laws formulas?
  
• If an electron is placed in an electric field with a potential difference of (1.35x10^2) V, the maximum speed the electron can attain is?
  
• Question #03374
  
• If lithium has a first ionisation energy of #520# #kJ# #mol^(-1)#, estimate the energy required to form 1 #Li^+# ion from 1 Li atom?
  
• How do I find this summation with an unknown variable at the end? 8+7+6...+(9-1n).
  
• What is the difference between quasars, pulsars and neutron stars?
  
• The measures of three angles of a triangle are given by #(8x- 5)° , (2x)°,# and #(3x - 10)°#. What is the measure of the largest angle?
  
• The center of gravity of a 50 g meter stick is at 51 cm and the stick is supported at 70 cm. Where must an 80 g object be hung in order to have equilibrium?
  
• Test to distinguish between ZnSO4 and ZnSO3?
  
• What is the chemical symbol of phosphorus?
  
• How do you differentiate # ln(x+4+e^-3x)#?
  
• Please help to solve this thanks very much!?
  
• Why is #cosx=secx# an inconsistent equation?
  
• How do you multiply # (3-5i)(7-8i) # in trigonometric form?
  
• It is given #vec u=2vec i+3vec j # and #vec v=3vec i+2vec j # .How to calculate #vec u*vecv#?
  
• How do you linearise the radioactive decay function properly?
  
• Question #56c3f
  
• With steps please.?
  
• How do you solve #sqrt(2x - 3) = 5#?
  
• Question #86860
  
• Question #28b04
  
• Question #5f1df
  
• Question #3dd7c
  
• What is the value of it? Thank you in advance.
  
• In the case where OAB is a straight line, state the value of p and find the unit vector in the direction of #vec(OA)#?
  
• How do you find the asymptotes for #s(t)=t/(sin t)#?
  
• Question #ea133
  
• Obtain a quadratic polynomial with following conditions?? 1. the sum of zeroes=1/3,the product of zeroes=1/2
  
• What is the pH of a 0.150 M solution of sodium acetate (NaO2CCH3)? Ka(CH3CO2H) = 1.8 x 10-5.
  
• What is the most widely accepted theory of the moon's origin?
  
• The four forces, taken together, act as a single resulting force. What is the magnitude of this resulting force? The forces are acting on a point and the magnitude of each force is show in the diagram.
  
• How do you evaluate # e^( ( 7 pi)/6 i) - e^( ( pi)/3 i)# using trigonometric functions?
  
• How do I solve #log_2 7 = log_2 (7/16)#?
  
• Does the point #(4,-3)# lie on the circle #(x+4)^2+(y-3)^2=49#?
  
• Anyone have an idea about this chemistry problem?
  
• GCF of #-64n^2# and #-24n^2#?
  
• Question #a70ba
  
• What is the sum of the first eight terms of the series?
  
• #int2/(2x^2+2x)dx#?
  
• Question #01306
  
• How do you add #(-8-9i)+(3-6i)# in trigonometric form?
  
• Question #b5a72
  
• Question #2f5fd
  
• The function #f(x)=sin(3x)+cos(3x)# is the result of series of transformations with the first one being a horizontal translation of the function #sin(x)#. Which of this describes the first transformation?
  
• Question #23d6b
  
• If sinθ+cosecθ=4 Then sin^2θ-cosec^2θ =?
  
• How do you find cos theta?
  
• What are the points of inflection, if any, of #f(x)=4x^3 + 21x^2 - 294x +7 #?
  
• How do you write the rectangular coordinates for the point: #(6, 3/2 pi)#?
  
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