Answers created by Mr. Hsia

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• How do you factor #r^3-8#?
  
• How do you combine #(4+2n^3)+(5n^3+2)#?
  
• The area of a rectangle is 28 square inches. The length is 8 more than thrice the width. How do you find the length and the width?
  
• What is the slope of the line passing through the following points: #(3, 5) ,(-4, 1) #?
  
• How do you find the zeros, real and imaginary, of # y=2(x+4)^2+4 # using the quadratic formula?
  
• How do you solve #4x^3 + x^2 - 4x - 1=0# by factoring?
  
• Suppose the slope of a line is positive. What happens to the value of #x# as the value of #y# increases?
  
• How do you find the roots, real and imaginary, of #y=3(x -2)^2+2x+3 # using the quadratic formula?
  
• Find the value of sin 120°+ cos 120°?
  
• How do you solve the system 5x – 3y = 13 and 4x – 3y = 11?
  
• What is the perimeter of an equilateral triangle with an area of 100√3 square feet?
  
• How many lines of symmetry are there on a regular pentagon?
  
• Population increases R% every year and after n years the population becomes P. What was/were the population before n years?
  
• Please Write the equation in standard form of the vertical line through the point (0,3)?
  
• A line segment has endpoints at #(5 , 8)# and #(6 , 1)#. If the line segment is rotated about the origin by #pi/2 #, translated vertically by #-2#, and reflected about the y-axis, what will the line segment's new endpoints be?
  
• What is the exact values of 3 sinx= 0.90?
  
• One angle is four times as large as another angle. If the angles are complementary, what are the measures of the angles?
  
• How do you simplify #(csc theta)(sec theta - cos theta)#?
  
• How do i evaluate #-(7^-3)(7^5)#?
  
• The two acute angles of a right triangle have degree measures of x and y. If #sin#x = #5/13#, what is the value of #cos# y?
  
• How do you solve #-5+ 4b ^ { 2} = 31#?
  
• Eight times a number plus five times another number is -13. the sum of the two numbers is 1. what are the numbers?
  
• Please solve q 86 ?
  
• What is the answer to (x^3y^-2)^(1/2) / (x^-5y)^(-1/2) ?
  
• How do you find the variation constant and an equation of variation where y varies directly as x and y=-2 when x=14?
  
• How do I simplify this?
  
• A restaurant offerd a choice of 4 salads, 9 mains courses, and 3 desserts. How many possible 3- course meals are there?
  
• How do you write #(4m+8)^2# in standard form?
  
• How do you factor #(x^2-81)/( 2x^2-23x+45)#?
  
• 105 students were divided equally into 15 teams. a. How many players were on each team? b. If each team had 3 girls, how many boys were there altogether?
  
• How do you find exact value of sin (19pi/12)?
  
• How do you find the amplitude, period and graph #y=4tan(1/3theta)#?
  
• How to simplify square root of 98 - the square root of 50 - the square root of 72?
  
• A solid consists of a cone on top of a cylinder with a radius equal to that of the cone. The height of the cone is #9 # and the height of the cylinder is #6 #. If the volume of the solid is #140 pi#, what is the area of the base of the cylinder?
  
• What is (√3)^3 ?
  
• How do you multiply #-4b(1-9b-2b^2)#?
  
• How do you solve #sin(pi/5-pi/2)#?
  
• If a trend line has a slope of -3, what is true about the data? Select all that apply.
  
• According to the general equal conditional probability, if P (A B) = 2/3 and P (B) = 3/4, what is P (A|B). what is the answer?? A. 35/36 B.15/16 C.8/9 D.24/25
  
• The volume of a cube is defined by what attributes?
  
• How do you simplify #log (x+6)=1-log(x-5)#?
  
• How do you convert x(2) squared + 18x =-45? Thanks!!
  
• Triangle A has an area of #3 # and two sides of lengths #5 # and #6 #. Triangle B is similar to triangle A and has a side with a length of #11 #. What are the maximum and minimum possible areas of triangle B?
  
• What number is 23% of 150?
  
• How do you find the vertical, horizontal or slant asymptotes for #f(x) = x/((x+3)(x-4))#?
  
• Clara earns at least $36.75 but not more than $98 working. She earns $12.25 per hour. The number of hours it takes Clara to earn p dollars is modeled by a function # t(p) = p/12.25# What is the practical range of the function?
  
• If #x^2# + #y^2# = #3xy#, show that #log (x-y) = 1/2(log x + log y) How do you solve this?
  
• For the function #f(x) = 1+3x-x^2#, what is #f(t-2) + c#?
  
• How do i work this out?
  
• How do you simplify #1/4 + 1/5#?