Answers created by Sally

• Back to user's profile
• Question #06e24
  
• How do you evaluate #(3a -9i +2ai +6)/(a^2+9) + (3-9i+3i+9)/(9+a^2)#?
  
• How do you solve this system of equations #y= \frac { - 3} { 4} x , x - 4y = 32#?
  
• How do you simplify to tell whether the ratios #3/10, 9/20# form a proportion?
  
• How do you solve the inequality #2x – 5< –5# or #2x + 2>4#?
  
• How many fourths in 3 fourths? Write an expression to the problem.
  
• How do you solve and write the following in interval notation: #-1 < x <5#?
  
• How do you sketch the graph of #y=-(x+2)^2-2# and describe the transformation?
  
• How do you graph the lines using slope-intercept form #y = -5x#?
  
• #5x# is #12# more than #2x#. What is #x#?
  
• How do you multiply #u^ { - 1} v ^ { - 1} \cdot u v ^ { - 1} \cdot 3u ^ { 0}#?
  
• Question #181b6
  
• How do you write 1,400 in standard notation?
  
• What is the slope of the line passing through the following points: # (-5, 4) ,(7, -2) #?
  
• How do you solve for #x# in #2x - 3 < 11#?
  
• How do you solve #y-2x=3# and #2x-3y=21# using substitution?
  
• How do you graph using the intercepts for # x-y=11#?
  
• How do you solve #x(x-7)=0#?
  
• How do you change -1/2 into a decimal?
  
• How do you solve #-(3x + 2) = -19x + 62#?
  
• How do you graph #y=x^2+2#?
  
• How do you simplify #7xy (x^2 + y) - 11 xy^2 (x^2 -1)#?
  
• How do you translate to an algebraic expression x plus y squared?
  
• How do you translate to an algebraic expression 6 less than x cubed?
  
• How do you translate to an algebraic expression 6 less than x cubed?
  
• How do you multiply #4x(2x^2 + x)#?
  
• How do you find the intercepts for # x=5#?
  
• How do you integrate #ln(5x+3)#?
  
• How do you solve #18 ≤ 21 + x #?
  
• How do you multiply #4 * 4sqrt4#?
  
• How do you find the slope and y intercept and graph #2x+3y=-6#?
  
• How do you multiply #(3u^2 - n)^2#?
  
• How do you simplify #sqrt(512k^2)#??
  
• How do you solve #w^2 = 4# where w is a real number?
  
• Question #05482
  
• How do I graph polar coordinates?
  
• How do I find the direction angle of vector #<-2, -5>#?
  
• How do you write matrices on Socratic?
  
• Why do so many people contribute on Socratic?
  
• What is the end behavior of the graph #f(x)=x^5-2x^2+3#?
  
• How do you set up a proportion when you are given a scale?
  
• How do I find the derivative of the function #y = sin(tan(4x))#?
  
• How do you apply the pythagorean theorem in word problems?
  
• How can acceleration be negative?
  
• How do you find the x intercept for #y=2#?
  
• Question #4de19
  
• How do you write an equation of a line that is parallel to another?
  
• Why do sedimentary rocks have layers?
  
• What is the derivative of #sec(x^2)#?
  
• What is the derivative of #cot^2(x)#?
  
• How do you find the slope of #2x+8y=9#?
  
• How do you write a line parallel to #y=-3/5x+2# and goes through point (0,-2)?
  
• How do you write #11 2/3# into an improper fraction?
  
• What does a polar coordinate system look like?
  
• What is the rectangular form of #r = 3 \csc \theta #?
  
• How do you write #r = 4 \cos \theta # into rectangular form?
  
• What is the y intercept for the #y=2# graph?
  
• How do you identify the intercepts on a linear graph?
  
• How do you convert rectangular coordinates to polar coordinates?
  
• How do you simplify #1-(x+4)#?
  
• How would you create a #(x,y)# table for the equation #y=2x-1#?
  
• How the does graph of #y=-2x^2# differ from #y=-2x^2 -2#?
  
• How do I evaluate definite integrals?
  
• How do you use integration by parts to find #intxe^x dx#?
  
• How do you find #lim_(x->5)(x^2+2)# using a graph?
  
• What is the range of the function #y = x#?
  
• What is the range of the function #y = cos x#?
  
• What is the identity matrix of a #2xx2# matrix?
  
• What is the range of #f(x) = 3x + 4#?
  
• How do I use elimination to find the solution of the system of equations #y=−2x−4# and #y+4=−2x#?
  
• How do I use substitution to find the solution of the system of equations #4x+3y=7# and #3x+5y=8#?
  
• What is the derivative of #e^x#?
  
• What is the identity matrix of size 4?
  
• What is the graph of #f(x) = x^2#?
  
• What is meant by the 3-D Cartesian coordinate system?
  
• How do I multiply the matrix #((3, 0, -19),(0, 7, 1), (1, 1/5, 2/3))# by -6?
  
• What is the derivative definition of instantaneous velocity?
  
• What is the derivative of #sin^2(x)#?
  
• How do you find the derivative of #y=e^(x^2)# ?
  
• What is Derivatives of #y=sec(x)# ?
  
• What is the derivative of #y=tan(x^2)#?
  
• How do you find the derivative of #y=tan(3x)# ?
  
• How does specific heat of metal compare to that of water?
  
• What is thermal contraction?
  
• How does thermal expansion affect bridges?
  
• What is linear thermal expansion?
  
• Can velocity be zero if accelerating?
  
• How are acceleration, time and velocity related?
  
• How does a vector quantity differ from a scalar quantity?
  
• Question #50c79
  
• How does thermal expansion affect a thermometer?
  
• How does projectile motion relate to linear motion?