06/08/16

exponential equation questions
1.Evaluate log264+log327×log41/254 2.solve for x 2log4(x+4)-log4(x+12)=1 3.solve the equation (cube root256^2)×16^x=64^x-3 4.3x=9^(x^2-1/2) solve for x
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06/07/16

John flipped a fair coin 120 times. It landed tails up sixty-five times
What is the experimental probability that the coin will land tails yo the next time he flops the coin? Show your work. 
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06/07/16

Functions and graphs
a point P in the first quadrant lies on the parabola y=x^2. Express the coordinates of P as functions of the angle of inclination of the line joining P to the origin
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06/07/16

Combinatorics and Permutations
If a license plate has three letters followed by two numbers and ending with either a P or a D, how many plates can be made that are all different.Do not use any commas in your answer. (An example... more
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06/07/16

Find the standard deviation of the following binomial probability experiment:
Find the standard deviation of the following binomial probability experiment:A student guesses at all four multiple choice questions on a quiz where there are five choices for each question. There... more
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06/07/16

Taylor series
Find the first five non-zero terms of Taylor series centered at x=6x=6 for the function below.f(x)=lnx   What is the radius of convergence?
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06/03/16

linear approximation
The linear approximation at x=0 to √(6+5x) is A+Bx where A is:?? and B is:??
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06/01/16

Rational Function
Given the rational function??(??) =(t3+t2-6t)/(t2-4) , find the domain, intercepts, holes, and asymptotes. Sketch an accurate graph of the ??rational function?
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05/25/16

Integral limit definition
No limit is visible in integral notation, but integration is defined in terms of a limit.  Give the definition; explain what is being limited, and how this allows an integral to calculate the exact... more
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05/17/16

Find the set of values for k?
Find the set of values for k for which the line y=2x−k meets the curve y=x2+kx−2 at two distinct points.   I only know you have to use a discriminant. :/
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05/16/16

Please Help Algebra
Solve the system of equations.5x + 2y + z = -112x – 3y – z = 177x + y + 2z = -4 1) {(0, -6, 1)} 2) {(-3, 0, 4)} 3) {(3, 0, -4)} 4) {(0, 6, -1)}   Please explain. Failing my Algebra I apologize if... more
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05/16/16

Find the conditional distribution
Suppose that(i) ε ∼ N (0, σ2);(ii) X ∼ N (µ, τ 2);(iii) ε ⊥⊥ X;(iv) Y = α + β X + ε.(a) Find the conditional distribution of Y given X = x.   the solution is:  Y |X = x ∼ N (α + β x, σ2) But, to... more
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05/16/16

Which is a zero of the quadratic function f(x) = 9x^2 – 54x – 19?
Which is a zero of the quadratic function f(x) = 9x^2 – 54x – 19? How to solve this?
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05/16/16

calculate limit of f(x,y) as (x,y) tends to 0 and f(x,y) is defined as 1 when x,y is not equal to 0 and is 0 when x,y is equal to 0
calculate limit of f(x,y) as (x,y) tends to 0 and f(x,y) is defined as 1 when x,y is not equal to 0 and is 0 when x,y is equal to 0
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05/12/16

Which pair of vectors is perpendicular?
A. <4,1> , <-8, 1>   B. <5,0>, <-3,2>   C. <5, -3>, <2,3>   D. <-9, -3>, <2 - 6>  
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05/12/16

Find C x D If ..
Find C x D if C = <3, 0, -2> and D = <-1, 3 , 7>
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05/11/16

How do I simplify this rational expression?
(4x+1)/(x—8) — (2)/(x+2) — (8x+16)/(x^2—6x—16) 
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05/11/16

Need your help badly!
When 1 kg of a substance changes from solid to liquid at its melting point, it must absorb an amount of heat equal to which of the following?A. Latent heat of vaporizationB. Specific heat of phase... more
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05/11/16

how do you solve an exponential function?
An exponential function that passes thru the points (1,4) and (3, 64)
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05/11/16

the solution of the inequality [(3^x-4^x).ln(x+2)]/[x^2-3x-4] is less than or equal to zero?
I would like a hint about solving exponential and logarithmic functions while finding domains?
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05/10/16

Square Root 5x+84 = 3x+28. Solve the equation.
The 5x+84 is square rooted. I am aware that the answer is -7.Just don't know how to work it
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05/10/16

Find its displacement?
A 64 lb object stretches a spring 4 ft in equilibrium. It is attached to a dashpot with damping constant c=8 lb-sec/ft. The object is initially displaced 18 inches above equilibrium and given a... more
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05/10/16

On a game show
Has to do with permutations and combinations   if you're on a game show that has 15 doors, the contestant gets to choose two doors. Behind two of these doors are expensive cars behind the other... more
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05/10/16

what is cramers rule?
how do i use it in matrices
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05/09/16

Find a 99% confidence interval for the population standard deviation s.
The daily intakes of milk (in ounces) for ten randomly selected people were:26.0 13.0 13.5 14.8 19.113.6 21.6 30.8 15.8 14.1Find a 99% confidence interval for the population standard deviation σ. ... more
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