Answers created by seph

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• Question #7ede7
  
• How do you find two quadratic function one that opens up and one that opens downward whose graphs have intercepts (-5/2,0), (2,0)?
  
• Which is the equation of a line that is parallel to -3x + 4y = 4 and passes through the point (4,0)?
  
• How do you factor completely #x^2 + 16#?
  
• How do you find the roots, real and imaginary, of #y=(x/5-1)(-2x+5)# using the quadratic formula?
  
• How do you find #a_7# if #a_n=12(1/2)^(n-1)#?
  
• How do you factor completely #27g ^ { 2} + 39g c + 14c ^ { 2}#?
  
• How do you solve #(x-4)(x+3)<0# using a sign chart?
  
• How do you solve #2e^x-5=1#?
  
• How do you solve #(2x ^ { 3} + 2x ^ { 2} + 2x ) \div 4x ^ { 3}#?
  
• How do you solve the system of equations #4x - y = 6# and #4x + 5y = - 6#?
  
• A rectangular park has a length that is 10 less than three times its width. Given the perimeter of the park is 180 feet, how do you find the area?
  
• How do you write the equation of a point slope form passing through (-2,8) and parallel to the line #5x-6y-7=0#?
  
• Tyrone bought 15.3 gal of gasoline priced at #g# dollars per gallon, 2 qt of oil priced at #q# dollars per quart, and a wiper blade priced at $3.79. How do you write an expression that represents the total cost of these items?
  
• How do you write an equation of a ellipse with foci (0,0), (0,8) and major axis of length 16?
  
• How do you find the sum of the arithmetic sequence given a1=58, an=-7, n=26?
  
• How do you find the coordinates of the center, foci, lengths of the major and minor axes given #x^2+25y^2-8x+100y+91=0#?
  
• How do you find the center, foci and vertices of #9x^2+4y^2+36x-24y+36=0#?
  
• How do you solve #\frac { y ^ { 2} - 4} { y - 2} \div \frac { y + 2} { 3y - 6}#?
  
• What is an equation of the line that passes through the point (-9,5) and is perpendicular to the line whose equation is #y=1/2x+5#?
  
• How do you write the equation for a circle whose diameter has endpoint (4,6) and (-2,6)?
  
• How do you find two positive numbers such that the sum of the squares of the two numbers is 169 and the difference between the two numbers is 7?
  
• How many number roots does the equation have #3x^2-6x+3=0#?
  
• How do you find the slope of the line through each pair of points (-17, 13), (-18, 14)?
  
• How do you add #9\frac { 2} { 3} + 4\frac { 2} { 3}#?
  
• How do you estimate #1087times21# by rounding?
  
• How do you find the LCM of 15, 6?
  
• Two corners of a triangle have angles of #pi / 3 # and # pi / 6 #. If one side of the triangle has a length of #9 #, what is the longest possible perimeter of the triangle?
  
• A line passes through #(9 ,3 )# and #( 3, 5 )#. A second line passes through #( 7, 8 )#. What is one other point that the second line may pass through if it is parallel to the first line?
  
• How do you find the Gcf of 80 and 25?
  
• The areas of the two watch faces have a ratio of 16:25. What is the ratio of the radius of the smaller watch face to the radius of the larger watch face? What is the radius of the larger watch face?
  
• How do you order the fractions from least to greatest: #11/12, 7/8, 15/16#?
  
• How do you find the LCM of 4,30?
  
• How do you write the equation of a line that passes through (4,-3) and has a slope of -3/4?
  
• What is the solution for the equation #x+1 = x+2#?
  
• How do you write the standard from of the equation of the circle given Center at (3, -6); radius = 5?
  
• How do you factor given that #f(8)=0# and #f(x)=x^3-11x^2+14x+80#?
  
• How do you solve the right triangle ABC given a=5, b=12?
  
• What is the sum of the integers from -2007 through +2009, inclusive?
  
• One number is three less than four times another; their sum is 27. How do you find the numbers?
  
• The ratio of Sue's age to Betty's age is 4:1. Twenty years from now, Sue will be twice as old as Betty will be then. How do you find their present age?
  
• How do you calculate #root3(8/27)-3/2#?
  
• How do you solve #8n ^ { 2} - 4= - 76#?
  
• How do you solve the system of equations #8x+7y=-51# and #x-y=3#?
  
• How do you solve the system of equations #-4x - 3y = 0# and #- x + 4y = 19#?
  
• The equation #y=0.014x^2+ 0.448x -2.324# models the price of gasoline at a local gas station last March. In the equation, x=1 corresponds to March 1. On which date in March was the gas price the highest? What was the price on that date?
  
• The measure of an angle is 21° more than twice its supplement. How do you find the measure of each angle?
  
• Question #fe03a
  
• How do you solve the standard form of an ellipse given Foci: (0, -3) , (0, 3) Vertices: (0, -4), (0, 4)?
  
• How do you solve #log_5(5^(6n+1))=13#?
  
• How do you solve #3^(5x)*81^(1-x)=9^(x-3)#?
  
• What is the slope of #y= -3#?
  
• How do you write an equation of an ellipse in standard form given foci (0,12) and (0,-12) and a major axis of length 26?
  
• How do you find the x and y intercepts of #x+4y=8#?
  
• The length of the hypotenuse of a right triangle is 13. The length of the shorter leg is 7 less than the length of the longer leg. What is the length of the shorter leg?
  
• What is the domain of #f(x)=sqrt(4-x^2)#?
  
• Two opposite sides of a parallelogram each have a length of #12 #. If one corner of the parallelogram has an angle of #(5 pi)/6 # and the parallelogram's area is #24 #, how long are the other two sides?
  
• A line passes through #(5 ,8 )# and #(7 ,9 )#. A second line passes through #(3 ,6 )#. What is one other point that the second line may pass through if it is parallel to the first line?
  
• How do you solve #n^2-12n+27=0#?
  
• How do you find the slope for (-3,7) and (3,-10)?
  
• Tony rows his canoe 30 miles downstream in the same time it takes him to row 12 miles upstream. If he rows 20mph in still water, what is the speed of the stream?
  
• How do you find a standard form equation for the line Perpendicular to the line 7x+y=49; contains the point (7,-1)?
  
• Circle A has a center at #(1 ,5 )# and an area of #18 pi#. Circle B has a center at #(8 ,4 )# and an area of #66 pi#. Do the circles overlap?
  
• How do you write an equation for a ellipse with center (5, -4), vertical major axis of length 12, and minor axis of length 8?
  
• A 54-inch board is to be cut into three pieces so that the second piece is three times as long as the first piece and the third piece is 5 times as long as the first piece. What is the lengths of all three pieces?
  
• What conic section is represented by #y^2-4x+6y+29=0#?
  
• How do you write the standard equation of a circle with the given center (-4,3) and tangent to the line y=1?
  
• How do you change #6^3 = 216# into log form?
  
• How do you solve #(x+2)/7 - (x-4)/8 = 3#?
  
• How do you write math expression for: 6 more than 3 times x?
  
• How do you find equations of the lines passing through (1,3 ) parallel to the x-axis?
  
• How do you solve #5x^2−8x−4=0# using the quadratic formula?
  
• How do you solve #(x-2)(x+5) = 18#?
  
• You have $6000 to invest in two stock funds. The first fund pays 5% annual interest and the second account pays 9% annual interest. If after a year you have made $380 in interest, how much money did you invest in each account?
  
• The length of the sides of a triangle can be represented as consecutive even integers. If the perimeter of the triangle is 54 cm, what are the lengths of the three sides?
  
• How do you find a standard form equation for the line with (7,3); perpendicular to the line y = 4x +2?
  
• The sum of two numbers is 66. The second number is 22 less than three times the first number. How do you write and solve a system of equations to find the two numbers?
  
• How do you solve -5x - 3y = 5 and 5x - 5y = -5?
  
• How do you solve #4x^2 - x^3 =0 #?
  
• How do you find the slope of a line parallel to the graph of each equation y=6?
  
• How do you find the roots, real and imaginary, of #y= (45-x)x # using the quadratic formula?
  
• How do you solve the following system: #3x - 4y = -23, 6x + 7y = -9 #?
  
• What are three consecutive even integers such that the sum of the first and twice the second is 20 more than the third?
  
• How do you find the standard form of #x^2-y^2=9# and what kind of a conic is it?
  
• How do you identify the following equation #x^2 + y^2 = 16# as that of a line, a circle, an ellipse, a parabola, or a hyperbola.?
  
• What is the standard form of the equation of a circle with endpoints of the diameter at (0,10) and (-10,-2)?
  
• Anna works at Office Max Markers cost $1.50 each and pens cost $1.00 each. One day she sold a total of 50 pens and markers for $65.00. How many markers did Anna sell?
  
• How do you find the slope given (-6, -2), (6, -7)?
  
• How do you solve #5x^2 + x = 3# using the quadratic formula?
  
• How do you factor #3x^2 - 48#?
  
• How do you solve the system 6x + 2y = 10 and -6x - 2y = 12?
  
• What is the equation of the line that passes through #(-4,1)# and is perpendicular to the line that passes through the following points: #(3,-3,),(1,-4) #?
  
• A factory makes widgets #x# and gadgets #y#. Widgets cost $3 and gadgets cost $5 each to make. The boss wants at least 10 widgets and 20 gadgets per day. Total costs need to be at most $300 per day. What system represents this situation?
  
• Question #91a8b
  
• Question #13b41
  
• Question #91a29
  
• How do you solve #0.5x+0.25y=36# and #y+18=16x# using substitution?
  
• Is #2y-5x=0# a direct variation equation and if so what is the constant?
  
• How do you simplify #(8 times 10^8)(9 times 10^10)# and write the answer in scientific notation?
  
• How do solve the following linear system?: # -10x+7y=-2 , -4x-15y=-1 #?
  
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