Answers edited by sjc

• Back to user's profile
• Next
• Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. If #P(z<b)=.9817#, what is #b#?
  
• How do you find the moments #M_x# and #M_y# and the center of mass of the system?
  
• How do you find the exact value of #cos(120^circ)+cos(45^circ)#?
  
• The sum of three consecutive even integers is 312. What are the integers?
  
• Question #893e2
  
• How do you find the derivative of #3^x#?
  
• How do you use implicit differentiation to find #(dy)/(dx)# given #5x^3=-3xy+2#?
  
• How to demonstrate this with mathematical induction?#P(n):n^3+5n# divide with 6 is true #forall ninNN#.
  
• What is a solution to the differential equation #dy/dx=sinx/y#?
  
• What is the LCM of 4 and 16?
  
• How do you find the vector equation and the parametric equations of the line that passes through the points A (3, 4) and B (5, 5)?
  
• T is the set of real numbers of the form a+b√2, where a,b € Q and a,b are not simultaneously zero. Show that (T,•) is a group where "•" is an ordinary multiplication?
  
• How do you find the center and radius for #5x^2 + 5y^2 +10x-30y+49=0#?
  
• How do you find the equation of a circle center is at (0, 0) and that is tangent to the line x + y = 8?
  
• Question #8b831
  
• What is the equation of the line that passes through the points (2, 4) and (4,0)?
  
• Can velocity be positive with a negative displacement? Explain please :)
  
• If Equations #x^2+ax+b=0# & #x^2+cx+d=0# have a common root and first equation have equal roots,solve Then prove that 2(b+d)=ac How to prove?solve
  
• How do you find the inner product and state whether the vectors are perpendicular given #<-2,4,8>*<16,4,2>#?
  
• How do you identity if the equation #x^2-8y+y^2+11=0# is a parabola, circle, ellipse, or hyperbola and how do you graph it?
  
• How do you solve #ln(x+1)-ln(x-2)=lnx#?
  
• How many meters are in 0.54 kilometers?
  
• Question #fa5a6
  
• How do you find the antiderivative of #int sec^2xtanx dx#?
  
• Question #de70e
  
• What is 5C3?
  
• Question #2323c
  
• How do you find the nth term rule for #1/2,1,3/2,2,...#?
  
• How many times can 2 go into 34?
  
• Question #01924
  
• What is the equation of the line that goes through #(5,1)# and has a slope of #m=4#?
  
• How do you evaluate #log_3 (1/81)#?
  
• How do you find the indefinite integral of #int (3x^2+4x+1)/(2x)dx#?
  
• What are the mean and standard deviation of the probability density function given by #p(x)=k(x-x^2) # for # x in [0,1]#, in terms of k, with k being a constant such that the cumulative density across all x is equal to 1?
  
• Question #96f9a
  
• How do you factor #7h^4-7p^4#?
  
• Question #101d6
  
• Question #f2070
  
• How do you solve #sin^2x+3sinx-4=0# for #0<=x<=2pi#?
  
• If #f(x)=3x^2-x+2#, what is #f(2)#? What about #f(a+h)#?
  
• How do you verify the identity #cos^2beta-sin^2beta=2cos^2beta-1#?
  
• How do you identify the center and radius of the circle #x^2+(y+12)^2=24#?
  
• How do you evaluate #\sqrt { \frac { 1- \cos ^ { 2} 2\theta } { 1- \sin ^ { 2} 2\theta } }#?
  
• How do you differentiate #(xy)/(x+y)=1#?
  
• An object's two dimensional velocity is given by #v(t) = ( t-2 , 5t^2-3t)#. What is the object's rate and direction of acceleration at #t=7 #?
  
• How do you simplify the expression #1+tan^2x#?
  
• What is #f(x) = int e^(5x-1)+x dx# if #f(2) = 3 #?
  
• How much force is required to accelerate a 2 kg car at 3m/s/s?
  
• How do you find the equation of a line tangent to the function #y=x^2+3x-1# at x=0?
  
• How do you use the discriminant to determine the nature of the solutions given # 9m^2 + 24m + 16 = 0#?
  
• How do you simplify #(-3-i)(2-2i)#?
  
• What is the value of #sqrt100#?
  
• Question #c070f
  
• How do you find the equations for the tangent plane to the surface #xy^2+3x-z^2=4# through #(2, 1, -2)#?
  
• How do you write the vector equation that passes through point (3,-5) and parallel to <-2,5>?
  
• A crane lifts a 6.500 N weight 10 m in 180 seconds. What power is used?
  
• How do you find the area of #triangle ABC# given a=10, c=8, sinB=3/10?
  
• How do you solve the equation #x^2-4x+5=0# by completing the square?
  
• How do you find #(dy)/(dx)# given #x^2sinx+y^2cosy=1#?
  
• If an object is dropped, how fast will it be moving after falling #16 m#?
  
• How do you integrate #int sqrt(x^2-25)/x# using trig substitutions?
  
• How do you find the factors of #f(x) = x^3-9x^2+8x+60#?
  
• How do you find the LCM of 27, 18?
  
• How do you find the GCF of #18, 45mn#?
  
• How do you write 95.6%, as a decimal?
  
• Question #e7f56
  
• How do you integrate #int sqrt(arcsinx/(1-x^2)# using substitution?
  
• Question #6cb94
  
• What is the simplest radical form of #sqrt116#?
  
• How do you find #""_11P_3#?
  
• Is angular momentum equal to Inertia times Omega and why?
  
• How do the factors proves that 32 is not a square number?
  
• How do you find the derivative of the function #f(x)=mx+b#?
  
• How do you integrate #int cot^2xdx#?
  
• How do you find the angle between the vectors #u=2i-3j# and #v=8i+3j#?
  
• What is the GCF between 120, 144?
  
• How do you evaluate #lne^45#?
  
• How do you integrate #int arctan(1/x)# using integration by parts?
  
• Next