Answers created by Sharkbasket

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• Test the convergence of the following series?
  
• What is the value of the coefficient of "a" when the quadratic equation y = (3x + 1)(3x − 2)?
  
• Add 3/7+6/7?
  
• What is the equation of the line tangent to #f(x)=4x^3+12x^2+9x+7# at #x=-3#?
  
• What is the unit for measuring force in the SI system Of measurement?
  
• How do you integrate #int e^(2x)/sqrt(-e^(2x) -25)dx# using trigonometric substitution?
  
• What is 9.75 divided by 1.3?
  
• How much greater is #-12x^2 - 19x + 8# than #-15x^2 + 17x - 18#?
  
• Express this decimal as a percent 9.83?
  
• How do you factor #27a^3-8#?
  
• Integrate ? 4 sin x dx
  
• What percent of 48 is 12?
  
• What is Completing the Square?
  
• Find all possible coordinates for S if P, Q, R and S are vertices of a parallelogram?
  
• How do you simplify #sqrt(16x)/3#?
  
• What is the variance for the following data, 2 4 5 7 ? Please show working.[steps].
  
• A sample of 50 values has a mean of 8.33 while the population standard deviation is 0.67. According to the Central Limit Theorem, the distribution of sample means is what?
  
• How do you simplify the expression #(sinx+cosx)/(sinxcosx)#?
  
• How do you multiply # (4-5i)(2+7i) # in trigonometric form?
  
• Given that #cos(x) = -3/4#; what is the value of #x#?
  
• What is the integral of 1/(1+cosx)?
  
• The body of a 150 lb person contains #2.3 * 10^-4# lb of copper. How much copper is contained in the bodies of 1200 such people?
  
• How do you multiply mixed rational numbers like a decimal and a fraction?
  
• How do you factor and solve #2x^2 - 3= 125#?
  
• A piece of wire #26 m# long is cut into two pieces. One piece is bent into a square and the other is bent into an equilateral triangle. How much wire should be used for the square in order to minimize the total area?
  
• Lim ((x^2+2x+2) / (x^2+3))^x ?
  
• How do you integrate #int (1-x^2)/((x-9)(x+6)(x-2)) # using partial fractions?
  
• How do you find the Limit of #(x(cosx-1))/(sinx-x)# as #x# approaches #0#?
  
• What is the antiderivative of #(2x)/(sqrt(5 + 4x))#?
  
• Use Ratio Test to find the convergence of the following series?
  
• How do you solve #11^ { x - 1} = 1331#?
  
• How do you solve #\frac { 1} { 2} x + 5\leq 8#?
  
• How to calculate the derivative?
  
• How i do to solve this integrate?
  
• What is the derivative of #(arctan x)^3#?
  
• Jim weighs 30 pounds less than Tom, and together they weigh 210 pounds. Let #n# Tom's weight in pounds. What would be the equation that expresses the total of Jim's and Tom's weights?
  
• What is 45% as a fraction, a ratio, and a decimal?
  
• How do you find the derivative of #sinx(tanx)#?
  
• How do you find the volume of the solid #y=-x+1# revolved about the x-axis?
  
• What is the limit as x approaches 1+ of the function (lnx)^x-1?
  
• How do you find the slope of the line passing through (-1,-1) and (-5,-4)?
  
• How do you find 3 consecutive integers such that their sum is 0?
  
• How do you write the first five terms of the sequence #a_n=2/3#?
  
• If a bowl contains ten hazelnuts and eight almonds, what is the probability that four nut randomly selected from the bowl will all be hazelnuts?
  
• Solve 1/1+i in polar form ?
  
• How to solve the equation? 2cosθ/2+1=0 0<θ<2π
  
• Formulate the recursive formula for the following geometric sequence. {-16, 4, -1, ...} ?
  
• What is the square root of 7 divided by the square root of 17?
  
• What is the interval of convergence of the Taylor series of #f(x)=1/(1-x)#?
  
• What must happen for a species to evolve?
  
• How do you find the sum of the finite geometric sequence of #Sigma 3(3/2)^n# from n=0 to 20?
  
• What happens to the standard error each time you quadruple the sample size?
  
• A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 47 and 57 minutes. Find the probability that a given class period runs between 50.5 and 51 minutes?
  
• What is the difference between a casual relationship and correlation?
  
• If you roll a die, what is the probability that a two will appear on top?
  
• Can someone show me how to solve this question?
  
• How do you add #(-1-3i)+(-1+5i)# in trigonometric form?
  
• What is the square root of 0.5?
  
• How do you factor #15b^2 - 7b - 2#?
  
• How do you graph #y = 0x + 3#?
  
• What is the selling price of a $450 painting with a 45% markup?
  
• 5*1/4+6*2/3+7*1/6=?
  
• How do you find the indefinite integral of #sqrt(25 + x^2)#?
  
• How do you integrate?
  
• How do you add #-2x+6-(x-3)#?
  
• The difference between two numbers is 5. 6 less than twice the smaller number is the larger number. What are the numbers?
  
• What is the best estimate for the totalweight of these cold meats:1 7/8 pounds of bologna,1 1/2 pounds of ham, and 7/8 pound of roast beef?
  
• Whats the absolute value of #abs(-27)#?
  
• How do you identify the important parts of #f(x)=x^2+3# to graph it?
  
• How do you solve #4/(w+4)=-7#?
  
• How do you determine if the improper integral converges or diverges #int (1/(3x)-6) dx# from negative infinity to 0?
  
• How do you use the chain rule to differentiate #y=3xsin(6x)#?
  
• What is the derivative of #f(x)=cos^2x*cos2x#?
  
• Using the integral test, how do you show whether #sum 1/(n*(n))# diverges or converges from n=1 to infinity?
  
• What is the standard form of #y= (6x + 3)(x - 5) #?
  
• How do you solve #2= 3x + 3( 2x - 6)#?
  
• How do you simplify #-7sqrt98#?
  
• What is the standard form of # y= (x-1)^2+2x #?
  
• What is the distance between #(3, –1, 1) # and #(–1, 4, –2) #?
  
• How to differentiate e^(xy)+1/y=5x+6?
  
• Integral by substitution trigonometric ? a- ) int x/sqrt(9-x²)
  
• What is the arclength of #f(x)=x+xsqrt(x+3)# on #x in [-3,0]#?
  
• What percent of 12 is 15?
  
• What are the components of the vector between the origin and the polar coordinate #(6, pi/3)#?
  
• How do you factor #12h^4 + 8h^2 - 6h#?
  
• How do you find the derivative of #f(x)=x^3/(x^3-5x+10)#?
  
• What is the antiderivative of #f(x)=tan (6x)#?
  
• How do you find the derivative of #f(y)=2y^3+4y^2#?
  
• How do you evaluate the definite integral #int (x-2) dx# from #[-1,0]#?
  
• Find the intervals on which the following function is increasing and decreasing and as well as its concavity? f(x)=x^2(1+x^2)
  
• You exercise for #3/4# of an hour. You jump rope for #1/3# of that time. In simplest form, what fraction of the hour do you spend jumping rope?
  
• Can someone give me a overview of how to solve this question?
  
• What is the difference between divisor, dividend, nominator, and denominator?
  
• Phil ate #2/5# of a pizza, Caroline ate #1/4# of a pizza. How much did they eat in all?
  
• Arrange the following rational numbers in descending order #2/3," "4/9," "5/12," "7/18?#
  
• How do you write #8x^2-4x+2x^2# in standard form?
  
• What is the distance between the following polar coordinates?: # (1,(3pi)/4), (5,(5pi)/8) #