Answers edited by Nallasivam V
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What is the value of the expression 2x^2+3xy4y^2 when x = 2 and y =  4?

How do you find the slope and equation of the tangent line to the curve #y=92x^2# at the point (2,1)?

How do I use matrices to solve the system #2x+3y=4# and #5x+8y=11#?

What are the local extrema of #f(x)= x^2(x+2)#?

How do you find the vertex and axis of symmetry, and then graph the parabola
given by: # h(x)=2(x1)^23#?

How do you solve the simultaneous equations #6x + 2y = 50# and #2x + 4y = 20#?

How do you solve #x^2 + 3x  4 = 0# graphically and algebraically?

How do you find the slope and y intercept for: #x+y =2#?

What is the vertex form of #y=4x^249x  5 #?

How do you find the equation of the line tangent to the graph of #f(x) = 6  x^2# at x = 7?

The length of a screw produced by a machine is normally distributed with a mean of 0.25 inches and a standard deviation of 0.01 inches. What percent of screws are between 0.24 and 0.26 inches?

A bin contains 71 light bulbs, of which 9 are defective. If 6 light bulbs are randomly selected from the bin without replacement of the selected bulbs, what is the probability that all of the selected bulbs are good?

What is the variance of the following probability distribution?: p(0)=0.05, p(2)= 0.17, p(4)= 0.43, p(6)= 0.35?

How can I use confidence intervals for the population mean µ?

Question #e49ee

What happens to prices when excess capacity is present in a monopoly?

What is the equation of the normal line of #f(x)=2x^4+4x^32x^23x+3# at #x=1#?

What is the axis of symmetry and vertex for the graph #y=x^2 +2x 5#?

How do you solve #9x^2 = x^3 #?

How do you graph 4x=y+2 by plotting points?

How do you solve 3x + 2y = 2 and 2x  4y = 0?

How do you graph #f(x) = 2x^2  x  1 #?

How do you solve #6x+3y=54# & #5x+2y=43# using matrices?

How do you find the equation of a line tangent to the function #y=x^35x# at x=1?

What is the equation of the line that is perpendicular to #2y=6x+8# if its #y#intercept is #5#?

What is the vertex form of #y= 2x^2+7x15#?

How can supply be relatively elastic?

How do you simplify #6x*7  3(4 + 1)#?

How do you determine equations for the tangents to the points on the curve #y=x^4+8x^2# such that the tangent lines are perpendicular to the line x=1?

How do you solve #y = x  7#, #y = 2x + 5# by graphing and classify the system?

How do the income and substitution effects affect quantity demanded for luxury goods?

What is the zscore of sample X, if #n = 54, mu= 37, St. Dev. =30, and mu_X =42#?

Question #60a21

How do you find the slope for (2,4) and (4,2)?

What are the mean and standard deviation of a binomial probability distribution with #n=112 # and #p=15/37 #?

How do you graph the parabola #f(x)=x^22x15# using vertex, intercepts and additional points?

Question #9eaa0

How do you find the slope of the line #6x7y=10#?

What is the the vertex of #y = 7x^2  28x  60#?

What happens when price falls in a marginal utility scenario?

How do you graph the function #f(x)=4x2#?

How do you find slope and yintercept of #y=3#?

Question #bdd78

How do you find the derivative of #sqrt(12x)#?

How do you simplify #9(x+7)#?

Why is important to perform a hypothesis test about a standard deviation?

Question #a97ea

A point on a graph (2, 4) that point is located in what quadrant?

How do you graph the function #y=5x+1#?

How do you solve the system of equations #x+y=8# and #x2y=4# by graphing?

How do you solve (X1)/2 + (y+2)/3 = 4 and X2y =5?

How do you write #2x^2 – 6x – 8 # in factored form?

How do you find the slope for (3,3) & (8,2) ?

A group of 62 randomly selected students have a mean score of 28.3 on a standardized placement test. The population SD for all students taking the test is #sigma = 3.4#. What is the 90 percent confidence interval for the mean score?

What is the vertex form of #y=x^2x72 #?

Using the following data set, which values have a zscore over 2?
144, 160, 154, 162, 179, 148, 197, 177, 166, 173, 154, 184, 183, 132, 157, 129, 151, 162, 209, 159, 150, 190, 175, 136, 117

What is the derivative of #y= e^(3x/4)#?

How do you find the slope for (7, 2) and (3, 6)?

How do you simplify #3x^3(x2)^2(x+7)#?

How do you solve the system of equations: y = 5x – 4, y = 5x – 5?

How do you identify the important parts of #Y = x^2  4x+5 # to graph it?

How do you graph the parabola #y= (x + 3)^2  2# using vertex, intercepts and additional points?

What is the longrun equilibrium for a monopolistic market?

How do you find and classify all the critical points and then use the second derivative to check your results given #y=x^2+10x11#?

If a group of data has a mean of 9 and a standard deviation of 2.5, what is the interval that should contain at least 93.8% of the data?

A fair coin is tossed 30 times What is the probability that the coin will show heads fewer than 17 times?

How do you graph #y = 5x  2 #?

How do you write #y + 2 = 4(x+2)# in standard form?

Question #1ed27

How do you solve #x^2 – 5x – 1 =  7# using the quadratic formula?

How do you write 9x³+6x²3x in factored form?

Question #589e3

How do you find the derivative of #Y= ( x^3 + 5x^2  3 )( x^2  1 )^5#?

Why is marginal revenue less than price in a monopoly?

How do you solve the system of equations: 4y=5x1 and 3x2y=1?

How do you solve the system of equations #3x + 5y  30 = 0# and #x  y  2 = 0#?

How do you find the intercept and vertex of #y= x^2 + 9#?

What is the expected value and standard deviation of X if P(X=0) = 0.31, P(X1) = 0.45, P(X=2) = 0.24?

How do you factor the trinomial #x^222x+121#?

Mark’s scores on his first nine assignments are: 10,10,9,9,10,8,9,10,and 8. What are the mean, median, mode, and range of his scores?

What is the equation of the line normal to #f(x)=2x^2 +3x  4 # at #x=2#?

How do you write the equations of a line passing through (2,5) and (1,3) in standard form?

How do you find the x and y intercepts for #3x+9y=9#?

How do you find the exact relative maximum and minimum of the polynomial function of #f(x)=4xx^2#?

How to determine the number of solutions in a linear system without solving: 14x + 3y = 12 and 14x  3y = 0?

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