Answers created by Andre R.

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• How do you arrange these from greatest to least: #- 5.7\bar97, -5.\bar797, -5.\bar79, -5.79\bar7, -5.797#?
  
• Question #473da
  
• Question #35861
  
• What is the energy required for chemical reaction called?
  
• A lake has a pH of 3.5. Is it acidic or basic? Would fish be healthy in this lake?
  
• How do you write an equation for a circle given center #(-sqrt13,42)# and passes through the origin?
  
• What is the dot product of #<-8,4,2 > # and #<-3,1,6 > #?
  
• What are alkenes used for?
  
• How do you find the center and radius for #x^2+y^2+x-6y+9=0#?
  
• What is the simplest formula for copper (II) and nitride?
  
• Question #6c28d
  
• Question #f9075
  
• #3 3/4# is bigger than #1 19/21#. How many times bigger?
  
• Question #05592
  
• In a museum, the ratio of adults to children is 13 to 5. If there are 288 people in the museum, how many children are there?
  
• Circle A has a center at #(2 ,2 )# and an area of #18 pi#. Circle B has a center at #(13 ,6 )# and an area of #27 pi#. Do the circles overlap?
  
• Question #42449
  
• How did Catherine the Great become Czarina?
  
• How do you solve #7*e^(x-3)=57#?
  
• How do you find #abs( -3 i )#?
  
• What is the slope of the line that passes through (2, 5) and (4, 4)?
  
• How do you write a vector equation and a parametric equation for each line: the line through A(-1,2,1) and B(1,2,1)?
  
• A bacteria culture starts with 1000 bacteria. 2 hours later there are 1500 bacteria. How do you fin an exponential model for the size of the culture as function of time t in hours, and use the model to predict how many bacteria there will be after 2 days?
  
• Tim has 80 coins in his piggy bank of these coins, 28 are nickels and the rest are quarters. What percent of the coins in the bank are quarters?
  
• Question #7fcaa
  
• How do you divide #7 4/5 div 1 1/4#?
  
• A mixture of concrete is made up of sand and cement in a ratio of 4:5. How many cubic feet of each are needed to make 135 cubic feet of concrete mix?
  
• How do you graph #\frac { 2} { 3} x = 6y - 8#?
  
• Is (1,0) is an ordered pair of the function f(x)= 1 + x?
  
• Which is an equation of a line that passes through point P(1,1) and is parallel to the given line #y=-2x+4#?
  
• Question #5430f
  
• How do you divide #-2/i#?
  
• How do you integrate #int x/sqrt(x+1)# using substitution?
  
• How do you write 1/50 as a percent?
  
• How do you find the limit of #absx/x# as #x->2^-#?
  
• How do you find the derivative of #y=e^(e^(3x^2))#?
  
• Three consecutive integers can be represented by n, n+1, and n+2. If the sum of three consecutive integers is 57, what are the integers?
  
• How do you add #(7+9i)+(2+i)# in trigonometric form?
  
• How do you solve # -0.07\div ( - 0.01) #?
  
• What is 0.8 times 1.3?
  
• What is the derivative of # x * ((4-x^2)^(1/2))#?
  
• How do you solve #3x^2-4x-2=0# by completing the square?
  
• How do you write 18% as a fraction?
  
• How do you simplify #-4( 5+ x ) + x + 6#?
  
• How do you simplify #(3-5i)+(3+5i)#?
  
• How do you write an equation for a circle given endpoints of a diameter at (-5,2) and (3,6)?
  
• How do write in simplest form given #3/2*(-1/3)#?
  
• Is #f(x)=(-x^3+2x^2-3x+7)/(x-2)# increasing or decreasing at #x=-1#?
  
• How do you graph #y=secpix#?
  
• How do you solve #x^2-2x>=0#?
  
• Question #ef40b
  
• The Harris Poll asked a sample of 1009 adults which causes of death they thought would become more common in the future. Gun violence topped the list: 706 members of the sample thought deaths from guns would increase. ?
  
• Miranda earned scores of 84, 91, 95, 78, and 92 on her math tests. How do you find her average (mean) score?
  
• Question #8312f
  
• How do you implicitly differentiate #5y^2=e^(x-4y)-3x #?
  
• What is the equation of the line tangent to # f(x)=(e^x-x)^2 # at # x=3#?
  
• How do you find the slope of a tangent line to the graph of the function #f(x)=x^3-2x+1# at (-1,2)?
  
• How do you implicitly differentiate #-1=-y^2x-2xy-ye^y #?
  
• How do you solve #\frac { 3} { 5} | 10- 5x | + 7> 25#?
  
• How do you solve #\frac { 3} { 5} | 10- 5x | + 7> 25#?
  
• How do you multiply 0.47 • 3.01?
  
• Question #aa6f7
  
• How do you graph #y=2/(x+9)-7# using asymptotes, intercepts, end behavior?
  
• How do you simplify #(8+6i)-(2+3i)#?
  
• Water leaking onto a floor forms a circular pool. The area of the pool increases at a rate of 25π cm²/min. How fast is the radius of the pool increasing when the radius is 6 cm?
  
• How do you write the quadratic equation in standard form #x^2 - 12 + 4x = (x - 2)^2 + 2#?
  
• How do you find the equation of the line tangent to the graph of #y = e^(-x^2)# at the point (2, 1/e^4)?