09/21/15

Statistcs help
I'm lost on this one   Listed below are the duration (in hours) of a simple random sample all flights of a space shuttle program. Find the range, variance, and standard deviation for the sample... more
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09/20/15

if you graph this function, what is the maximum point?
john is building a puppy pen in his backyard. He is going to use the corner of his existing fence as two of the sides of the pen, and has 40 feet of fencing material which will make up the other... more
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09/19/15

An investor is considering a $25,000 investment in a start-up company. She estimates that she has probability 0.05 of a $15,000 loss, probability 0.15 of a $20,
An investor is considering a $25,000 investment in a start-up company. She estimates that she has probability 0.05 of a $15,000 loss, probability 0.15 of a $20,000 loss, probability 0.35 of a... more
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09/19/15

Probability question
Is this similar to asking what is the probability of guessing someone's birthday.  Analogy: What is the probability of guessing the correct date out of 365 dates, 1/365? If I wanted to prove that... more
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09/17/15

Find the probability that the number of smokers in the sample would be none.
Let say the percentage American adults smoker is 20. Suppose we take a simple random sample of 10 adults. Find the probability that the number of smokers in the sample would be none. (Binomial... more
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09/17/15

which of the following statements is equivalent to the following.
a.The sum of any two odd positive integers is odd. b.The product of any two odd positive integers is positive. c.The sum of two odd positive integers is an odd positive integer. d.The product of... more
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09/15/15

13-(2c+2) = 2(c+2)=3c
please include steps :)
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09/15/15

Assistance in Algebra 2
if f(x) = In x, g(x) = e4x, and h(x) = x5   I can't seem to find the domain of a. (f.g)(x) b. (g.f)(x) c. (f.h)(x)      
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09/14/15

The sum of 2 intergers are 19 and their difference is 9 . What is the smaller of the two intergers
Ita math . Its word problems  & their kind of difficult 
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09/14/15

Probability help:
Assume that there are 5 different issues of Popular Science, 6 different issues of Sports Illustrated, and 3 different issues of Newsweek, including the December 1st issue, on the rack. You choose... more
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09/14/15

Calculate lim x-> -1 (x-1)^4 (-4x^2)
Calculate lim x-> -1 (x-1)^4 (-4x^2)I've got the answer which is -64, but I'm asked to state what Limit Laws were used, and not just one but all which were used: I got the Power and Product Law,... more
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09/13/15

how much does he owe each person?
mr. schindler owes several teachers a total of $51. he owes mrs vansolkema $5 more than three times the amount he owes mrs kb. he owes ms shinsato $10 less than two times the amount he owes mrs kb.... more
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09/13/15

Math problem
3 people have jobs. The first worker gets paid $422 weekly. The second worker gets paid $451.60 weekly. The third person gets paid $392.00 weekly. A) If each job pays bi-weekly, what is the gross... more
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09/08/15

Instantaneous Rate of Change Problems!
Let g(x)=2x2+4x+1. Find a value of c between 1 and 5 such that the average rate of change of g(x) from x=1 to x=5 is equal to the instantaneous rate of g(x) at x=c.   Suppose h(t)=t2+14t+7. Find... more
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09/07/15

A man and a wife take their three kids to the movies. If the total cost of the tickets was $49, how much were the adult tickets?
A man and a wife take their three kids to the movies. If the total cost of the tickets was $49, how much were the adult tickets?
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09/07/15

Math Calculus Functions and Models
The cost of producing 480 permanent markers is $895. Producing 530 permanent markers would cost $915. Find the average cost per permanent marker of the additional 50 permanent markers over... more
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09/07/15

Simple math problems.
1. Write one memeber of the real number system that is not a rational number.2.bonus question3. Mark layered 3 pieces of wood to build the base for a lamp. The pieces 1/4 inch thick, 5/8 inch... more
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09/07/15

algebra 2 question
I'm trying to find the remainder please help I'm stumped f(x)=3x^6+82^3+27
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09/07/15

algebra 2 problem
Could someone explain and or tell me what the real and negative zero are for thisf(x)= 3x^5-3x^2+x-5
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09/06/15

Indicate by T or F whether the equations below are equivalent to a linear equation.
Indicate by T or F whether the equations below are equivalent to a linear equation. 1. x 2 −5x+4=x 2 +6x−11  2. 3x+4=5x−4  3. 1x+3 =12x−3   4. x 2 +1=x−x 2 
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09/06/15

Word problem
Grace is able to obtain two loans to purchase a house. She borrows $60,000 from a bank and $96,000 from a savings and loan company whose lending rate is 1% more than the bank's. Determine the... more
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09/06/15

How much pure alcohol should be added to 25litres of 16% alcohol to increase the concentration to 60%.
1. A certain obstetrican found the 9o% of babies she delivered weighed x pound where /x-8.5/ less than equal to 1. Determine the range of weight that correspounds to the inequality   2. sixty-six... more
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09/03/15

Find the range and percentiles
Descriptive Statistics: Obese   Variable         N       N*       Mean       SE Mean         StDev        Minimum       Q1        Median        Q3         Maximum Obese          50      ... more
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09/03/15

This Is A Very Easy Math Question. Its about possibilities . Please explain, Thanks!
There are 5 different letters on the blackboard. Joanne randomly picks 3 of the letters and uses them to make different arrangements of letters can she make?
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09/02/15

Three times a number is twelve
There times a number is twelve 
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