08/11/14

what is the values of x that are solutions to f(x)=0, where f(x)=3x^2+6x+7
what is the value of x that are soutions to f(x)=3x^2+6x+7
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08/11/14

Using the properties of logarithims to write the expression as a single logarithim, if possible:
2loga 5x^3-1/2loga(2x+3)
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08/11/14

Usethe properties of logarithims to expand the expression:
log2sqrt8x/x+1
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08/11/14

Evaluate log3^2+log3^4-log3^72 without using a calculator
Evaluate log3^2+log3^4-log3^72 without using a calculator
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08/11/14

Evaluatel log5 4sqrt1/25 without using a calculator.
If the answer is not an integer, enter it either as a fraction in simplest form or as an exact decimal
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08/10/14

Brandon is riding his bicycle at a constant speed from to the library. His distance from the library in kilometers x hours after leaving school can be modeled
Bryn is riding his bicycle at a constant speed from school to the library. His distance from the library in kilometers x hours after leaving school can be modeled by the equation y=20-12x. What do... more
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08/04/14

find the sample mean and standard deviation
find a sample mean and  sample standard deviation for the data set of 41, 37, 57, 47, 31, 31, 41, 37, 57,27,47,41,45
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07/28/14

math word problem
Susan can wax her car in 2 hr(s). When she works together with Helga, they can wax the car in 30 minute(s). How long would it take Helga, working by herself, to wax the car?
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07/16/14

how to solve the prob/
The average size (in square feet) of homes built in the United States in the fourth quarter of 2008 was 2,343. Assume the variable is normally distributed and the standard deviation is 152 square... more
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07/11/14

Using matrices, how do you solve
2x+3y+4z=28 2x+y-z=0 x+y+3z=16
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06/29/14

Find a bound on the real zeros of the Polynominal function
Find a bound on the real zeros of the Polynominal function.   f(x) = x4+3x3-7x-3   Every real zero lies between -___ and ___
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06/24/14

Tax on a $25 item is $2.06. What should be the tax on a $45 item?
ratios and proportions
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06/19/14

Determine the x-coordinates and find the intervals on which f is increasing and decreasing
Let f(x)=4x^3+5. Find the open intervals on which f is increasing (Decreasing). Then determine the x-coordinates of all relative maxima and minima  1. f is increasing on which interval? 2. f is... more
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06/19/14

Probability and Statistics/Operations Research. Please help!!!
Due to local zoning laws, you will only be allowed to build one widget factory this year. You have decided that the only reasonable choices are between a medium-sized factory and a large factory,... more
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06/19/14

Need help with statistic Question (Please show all steps)
Find the area under the standard normal curve that lies:a. Either to the left of -1 or to the right of 2.b. Either to the left of -2.51 or to the right of -1.
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06/19/14

Need help with statistic Question
Determine the area under the standard normal curve that lies between:a. -0.88 and 2.24b. -5.1 and 1
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06/19/14

Need help with statistic Question
In a standard normal curve, the area under the density curve that lies between 30 and 40is 0.832. What percentage of all possible observations of the variable are either less than30 or greater than... more
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06/19/14

Probability
The distribution of the width of a standard piece of computer paper is normal with an expectation of 8.5 inches and the standard deviation of 0.2 inch.   a) Find the probability that the width of... more
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06/18/14

simply using only positive exponents
-3x-3
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06/18/14

Find the average or mean slope of the function on this interval.
Consider the function f(x)=3x3-5x on the interval [-5,5]. Find the average or mean slope of the function on this interval.  By the mean value theorem, we know there exists at least one c in the... more
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06/18/14

On which two intervals is the function increasing?
For x E [-11,11] the function f is defined by  f(x)=x6(x-2)5 1- on which two intervals is the function increasing? 2- Find the region in which the function is positive: 3- Where does the... more
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06/18/14

Find A,B and C.
Consider the function f(x)=5x+6x-1. For this function there are four important intervals (-infinity, A], [A,B), (B,C), and [C, infinity) where A and C are the critical numbers and the function is... more
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06/18/14

Which of the following limits are indeterminate forms?
Given that  lim x->a f(x)=0 lim x->a g(x)=0 lim x->a h(x)=1 lim x->a p(x)=infinity lim x->a q(x)= infinity.  THEN (a) lim x->a f(x)/g(x)=  (b) lim x->a f(x)/p(x)= (c)... more
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06/18/14

Find the average or mean slope of the function on this interval
Consider the function f(x)=2√x +1 on the interval [2,7].  Find the average or mean slope of the function on this interval.  By the mean value theorem, we know there exists a c in the open interval... more
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06/15/14

Find the average or mean slope of the function on this interval.
Consider the function f(x)=2√(x)+1 on the interval [2,7]. Find the average or mean slope of the function on this interval. By the mean value theorem, we know there exists a c in the open interval... more
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