10/15/15

Find the rational solution of x3 – 3x2 + x + 5 = 0. Show your use of the Rational Zero Theorem
Find the rational solution of x3 – 3x2 + x + 5 = 0. Show your use of the Rational Zero Theorem
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10/15/15

If you know that -2 is a zero of f(x)=x^3+7x^2+4x-12, explain how to solve the equation x^3+7x^2+4x+12=0. Also give an explanation to why x-2 is or is not a fac
If you know that -2 is a zero of f(x)=x^3+7x^2+4x-12, explain how to solve the equation x^3+7x^2+4x+12=0. Also give an explanation to why x-2 is or is not a factor  
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10/15/15

Use complete sentences and proper grammar to explain how the Remainder Theorem can be used to find f(-2) if f(x)=x^4-3x^3+2x^2+7x+5
 Use complete sentences and proper grammar to explain how the Remainder Theorem can be used to find f(-2) if f(x)=x^4-3x^3+2x^2+7x+5 ALSO What advantage is there to using the Remainder Theorem in... more
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10/14/15

differentiate the function
 y=cos(4x^2+3)
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10/14/15

The standard deviation of Y (rounded to two decimal places) is:
use the distribution of the random variable Y as show in this table to answer those questions:   Value            -4     0        2      6         9       11Probability   .07    .13     .14     x... more
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10/14/15

assume that the numbers 1 and 2 are equally likely, as are the numbers 3 through 6, yet rolling a 1 is five times as likely as rolling a 3.
If we have probability weights w1 through w6, one for each possible outcome, what is the the value of w3?
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10/14/15

The pointer on a voltmeter is 6 centimeters in length. Find the number of degrees through which the pointer rotates when it moves 2.7 centimeters on the scale.
i need help with this problem for my pre calc class
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10/13/15

A hawk flies in a horizontal arc of radius 14.4 m at a constant speed of 3.7 m/s. Find its centripetal acceleration. Answer in units of m/s2.
A hawk flies in a horizontal arc of radius 14.4 m at a constant speed of 3.7 m/s. Find its centripetal acceleration. Answer in units of m/s2.
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10/13/15

For this problem, assume 7 males audition, one of them being Miles, 5 females audition, one of them being Margaret, and 6 children audition.
The casting director has 3 male roles available, 1 female role available, and 2 child roles available.   A) How many different ways can these roles be filled if exactly one of Miles and Margaret... more
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10/02/15

DON"T KNOW WHAT I"M DOING!!!
Use the continuity correction and describe the region of the normal distribution that corresponds to the indicated probability. Probability of fewer than 8 passengers who do not show up for a... more
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10/02/15

Let s represent the number of sections and b represent the number of beams needed. What is the explicit rule?
I need to be able to get an explicit formula
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10/02/15

COMPLETELY CONFUSED
A survey found that women's heights are normally distributed with mean 63.6 in. and standard deviation 2.9 in. The survey also found that men's heights are normally distributed with a mean 67.4 in.... more
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10/02/15

According to The World Bank, only 9% of the population of Uganda had access to electricity as of 2009. Suppose we randomly sample 150 people in Uganda. Let X =
According to The World Bank, only 9% of the population of Uganda had access to electricity as of 2009. Suppose we randomly sample 150 people in Uganda. Let X = the number of people who have access... more
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10/02/15

Word Problem
The Carver Foundation funds three non-profit organizations engaged in alternate-energy research activities. From past data, the proportion of funds spent by each organization in research on solar... more
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10/02/15

completely lost!!!!
A certain brand of candies have a mean weight of 0.8613 g and a standard deviation of 0.0522. A sample of these candies came from a package containing 441 candies, and the package label stated that... more
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10/02/15

NEW TO THIS TYPE OF MATH
The value given below is discrete. Use the continuity correction and describe the region of the normal distribution that corresponds to the indicated probability.Probability of fewer than 8... more
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10/01/15

Lorraine needs to know how much to invest in a 12% and 14% fund if she has 168,750 to invest
Lorraine estimates she will need 22,050 a year in retirement income to supplement her social security her investment adviser has suggested an investment fund that pays 14% and another that pays 12%... more
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10/01/15

A tablet PC contains 8152 music and video files. The distribution of file size is highly skewed.
Assume that the standard deviation for this population is 0.84 megabytes (MB). Suppose that the true mean file size of the music and video files on the tablet is 7.6 MB and you plan to take an SRS... more
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10/01/15

PLEASE HELP ME SOLVE
given the matrices R,S AND T find 2RS - 3ST.R = 1 0 2          S= 0 -1 2             T= -2 3  0        2 1 5               3  1  0                 -3  2  2        2 3 1               4  2  1    ... more
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10/01/15

Find dy/dx by implicit differentiation. x^2/( x + y) = y^2 + 8
Please help me 
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10/01/15

4x^2-25y^2=100
use vertices and asymptotes to graph each hyperbola. Locate the foci and find the equation of the asymptotes.
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10/01/15

Brittany has ten friends helping with a school fundraiser.
Brittany has ten friends helping with a school fundraiser. There are 3 girls and 7 boys. She needs two people to be in charge of the cash register. What is the probability that both of them are... more
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10/01/15

Find the equation of an ellipse satisfying:
Find the equation of an ellipse satisfying: Foci at (2,2) and (6,2) and major axis ending at the point (10,2). Express this equation in standard form.
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10/01/15

Let E and F...
Let E and F be events such that Pr[E]=0.5, Pr[F]= 0.53, and Pr[E intersect F]=0.24. Find.   Pr(E l F complement)     Pr(F l E complement)
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10/01/15

Which inequality can be used to find the dollar amount of x
A sales associate in a clothing store earns $250 a week plus a commission equal to 3% of his sales. This week, the associate’s goal is to earn no less than $460. Which inequality can be used to... more
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