Questions asked by kevin

• Back to user's profile
• Next
• Find the equation of the line through the pints (1,4) and (-2,-5)?
  
• Factor 4x^2+4x+1=0?
  
• Solve the following equation #x^8-10x^4+9 = 0#?
  
• #2x^4-9x^3-7x^2+54x-40=0#?
  
• Exponential growth function g(t)=Ae^kt (t >= 0) where A and k are constants . after 3 years the population was 42and after 10 years was recorded as 1195 (a)find the values of constants A and k correct to (3sf)? (b)predict increase every 2years to (3sf)?
  
• F(x)=x^2+6x+8 (i) complete the square to rearrange f(x) in the form f(x)=(x+a)^2-b where a and b are positive integers? (ii) hence explain how the graph o f can be obtained from the graph of y=x^2 by using appropriate translations?
  
• (a) given that theta is an acute angle with sin theta = 17/41 find the exact value of cot theta (b) using the exact values for sine and cosine of both 3*pi/4 and pi/6 and the angle sum identity for sine, find the exact value of sin (11*pi/12)?
  
• Multiply out brackets and simplify # (2sqrta-3sqrtb) (sqrta + sqrtb)#?
  
• Simplify the following? #(x^(5/4) sqrt(16x^3)) /(8x)^(2/3)#
  
• Rearrange the following equation to make G the subject, where r > 0 and M > 0 8 pi^2/G^3M = T^2/r^3. ?
  
• Rearrange the following equation to make G the subject where r>0 and M>0: 8pi^2/G^3M = T^2/r^3?
  
• #F(x) = x^2+6x+8#?
  
• Suppose that f(x)=-4-3x and g(x)=sqrt2+x find the rule of the composite function fog.?
  
• Find both solutions between 0^0 and 360^0 of the equation sin theta =7/12 the first solution is theta =? the second solution is theta =?
  
• Use an appropriate half-angle identity to find the exact value of sin(pi/12) = ?
  
• Which of the following is equivalent to 3/x-1+4/1-2x a, -7/x . b, 1/x. c, 2x+1/(x-1)(1-2x). d, 5x-1/(x-1)(2x-1). e, 7/(x-1)(1-2x). ?
  
• Which of the following is equivalent to (x+1)(3-x)+2x(x-1)? a, -2x+3x-1. b, 3x+3. c, x+2x. d, x+3
  
• if y = 3x-2/4+x, which of the following is equal to x ?
  
• If y = 3x-2/4+x, which of the following is equal to x ? A, 2y+1. B, 5y+2/3. C, 4y+8/1-y. D, 4y+2/3-y. E, 2+1/y.
  
• Solve for #x#: #y= sqrt( (4x+1)/(3x-3))# ?
  
• Y= a b^3x , where a>0 and b>0 solve for x ?
  
• Which of the following is equivalent to the inequality 1/2x+1 >x answers A, 2x^2+x-1/2x+1 <0. B, 2x^2+x-1/2x+1 >0. C, 2x^2+x+1/2x+1 >0. D,2x^2+x-1 >0. E,2x^2+x+1 <0.?
  
• Which of the following is equivalent to " 3/1+5sqrt2." ? A, 3sqrt2-3/49. B, 1-5sqrt2/17. C, 3sqrt2-3. D, 3/3x+2. E, 1/3x+2.?
  
• What is the scalar product of -2i+3j+4k and 5i-3j+3k, where I, j and k are the Cartesian unit vectors? answers given A,-15. B,-10. C, -7. D, 7. E, 10. ?
  
• Which of the following is the x coordinates of a stationary point g(x)=9x^2-36x+35 ? answers A, -5/3 B, 5/3 C, 2 D, 7/3 E, 4
  
• Could you please answer this question below?
  
• Could you do this for me?
  
• Could you please do this for me?
  
• Could you please help with this trig?
  
• Please help me with this sum below?
  
• Please help me with the sum below?
  
• Could you help me out below?
  
• Ques 13 could you please help?
  
• Help me please ?
  
• Please help me ?
  
• Could you please answer ?
  
• Could you please show me how to do this?
  
• Please help me ?
  
• Help me sos?
  
• Help me please?
  
• Please help ?
  
• Algebra question 3x(x+1)+(2-4x)(x-3)?
  
• Algebra fraction a^4/3 b^-1/3sqrta^-2 b^-2, where a>0 and b>0 ? answers A = 1/a^3b^4/3, B= a^2/b^1/3, C=a^2/b^7/3, D=a^4/b^1/3, E=a^4/b^7/3,
  
• Maths is this questions answer below?
  
• If x = sqrt y/1+2y which of the following is equal to y? Answers A=1-x^2/x^2 , B= x^2/1-2x^2 , C=x^2/1+x^2, D= x^2/1+x^2, E=x^2/3
  
• Find, in terms of x and y , the equation of the perpendicular bisector of the line segment joining the points(-1,2) and (-7,0) . The equation of the perpendicular bisector is .?
  
• Could you work this vector out?
  
• Could you differentiate this function? f(x)=6x^2ln(4x)
  
• Please help solve this question ?
  
• Differentiate the following functions (a), (b), (c).?
  
• Indefinite intergral (x+3)^2sin x dx ?
  
• Use integral to find the following calculus answer A, and B.?
  
• A,b,c,function as below?
  
• This question is about f(x= -(x+1)sin(5x). ?
  
• Calculate matrix?
  
• Could some one help me with vector 5?
  
• #vecu=4hati+7hatj+5hatk# and #vecv=5hati+3hatj+4hatk#; #u*v=#?
  
• Differentiate the function y=4cos(cos(x)).?
  
• Let f(x)=-2x^3+5x^2-3x-3 find an expression for the second derivative f''(x)?
  
• Find the stationary points question 11?
  
• I can not do this nor understand?
  
• Y= 3x-2/4+x which of the following is equal to x ? A 2y+1, B 5y+2/3, C4y+8/1-y, D 4y+2/3-y, E 2+1/y
  
• Simultaneous equations , could you show me how to work it out? #5x+2y=7# #4x-3y=24#
  
• Could you show me the workings of this polynomial function f(x)=cos x ?
  
• If #y=ab^x# what is x ?
  
• The graph of function f and another is shown below what is the equation of the other?
  
• Image set p=x^2+1 (-2<=x<=2)?
  
• Function f(x) what statements are true?
  
• What is the area between the graph of y=x^3 and the axis from x=3 to x=4?
  
• 3/(x-1)+4/(1-2x)?
  
• The infinite geometric sequence(Xn)?
  
• Sequencce (Xn) please?
  
• Eggs over two years?
  
• Decimal to fraction ?
  
• Sum of each of the following infinite series ?
  
• Question five coefficient ?
  
• Could you show me how to get 11/3 in this question?
  
• Integral question?
  
• What is the answer ?
  
• What is the right answer?
  
• What is the right answer ?
  
• What is the corredt answer?
  
• What is the right answer?
  
• What is the correct answer ?
  
• What is the proper answer to this question?
  
• The correct answer?
  
• Could you show me which transformation ?
  
• Show me the workings of this ?
  
• What is the size of theta?
  
• What is the ans please?
  
• What is the following derivative of f(x)=6x^2/3?
  
• Question 15 ?
  
• Anticlockwise angle?
  
• Qestion 19?
  
• Question 21?
  
• Could you ans question one?
  
• Could you show me the workings of this?
  
• Please show me the workings of this no.2?
  
• Ques 3 could you show me the workings of this matres?
  
• Maxtrice number 4 ?
  
• Next