05/02/16
find the mean, variance, and standard deviation for the number of cars sold at a dealership per day
number of sales: 6 7 8 9
probability: 0.4 0.3 0.15 0.15
05/02/16
A rectangular prisms volume is 100in. The surface area is 157in. One of the dimensions ends in either .25 or .5. What are the dimensions
all numbers have to be ten or less.
05/02/16
Find the exact value of tangent for the angle in standard position with the terminal side located at A.
A) -1
B) 1
C) 0
D) undefined
E) none of these
05/02/16
A child throws a ball straight upwards to his friend who is sitting in a tree 18 ft above ground level.
A child throws a ball straight upwards to his friend who is sitting in a tree 18 ft above ground level.If the ball leaves his hand at a height of 2 feet with an initial velocity of 40 ft/sec, write...
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05/01/16
find the equation of a parabola
Find the equation of a parabola through (-15/4 , 2) and (0,-1) whose axis is parallel to the x axis and latus rectum is 4.
Please help
04/29/16
Population decline problem - math modeling
The population of a country was 42 million in 2000 and the natural rate of the decline of the population was 3% per year. Also, let k(t) =e0.6t represent the net rate of growth of the population...
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04/29/16
Suppose the average hourly wage of a production line worker in a particular industry is normally distributed with a mean of $9.40 and a standard deviation of $0
Suppose the average hourly wage of a production line worker in a particular industry is normally distributed with a mean of $9.40 and a standard deviation of $0.80. than how much thirty-two percent...
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04/29/16
Suppose a population is normally distributed with a mean of 200 and a standard deviation of 40.what's the probability that X > 190
Suppose a population is normally distributed with a mean of 200 and a standard deviation of 40.what's the probability that X > 190
04/28/16
Bayside High School created a new Twitter account. On the first day they had 2 followers. Suppose they triple the number of followers each day.
Write an equation that relates the number of followers to the number of days that have passed since the account was created. Use your equation to find the number of followers on the 10th Day. Show...
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04/27/16
Select the representations that do not change the location of the given point?
Can someone explain while going through the details of the answer? I do not have a guideline to follow for questions like this, thank you:
(7, 140 degrees)
A. (-7, 320 degrees)
B....
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04/27/16
Patrick missed 6 out of his last 18 free throws. What is the experimental probability that Patrick will miss his next free-throw attempt?
i need help please math is really hard for me at times
04/27/16
You are charged 13.21 including tax for a meal, assume the 7% sales tax, how much was the menu price for the item
Math080/123 question of the day
04/26/16
A rectangular solid has a base of 11in., height 15 in., and a lengh of 6 in. Find the total area of all the faces?
Need help with tree-dimensional figures
04/26/16
speed of trains
A passenger train travels 392 mi in the same time that it takes a freight train to travel 322 mi. If the passenger train travels 20mi/h faster than the freight train, find the speed of each train.
04/26/16
Trigonometry
Use algebra to rewrite the following identity in 2 different forms.
tan2(Θ)+1=sec2(Θ)
04/26/16
on average , a proportion of 0.48 newborns are girls. What are the chances that in a family with 4 children there are exactly three daughters?
Please give the answer as a proportion, rounding to two decimal places.
04/25/16
Business math 141
a jewelry store expects its overhead to be 25% of sales and its net profit to be 50% of sales. The cost to the store is $40 less 20% for a watch? a)what is the cost of the watch? b)what is the...
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04/25/16
A math 1100 student with awesome enthusiam to do mathematics decided to toss their math 1100 book up into the air with joy. Knowing that the student projected
knowing that the student projected the textbook at a velocity of 80mph, when will the book hit the ground? Hint: h=80t-16t^2. also when will the book reach its maximum height? How high up is the...
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04/24/16
If the fourth term of an arithmetic series is 5 and its ninth term is 20, find its first and seventh terms.
If the fourth term of an arithmetic series is 5 and its ninth term is 20, find its first and seventh terms.
04/24/16
A geometric series begins 10,5, 5/2, 5/4, 5/8, ... Find the common ratio r for this series and then the formula for the nth term of series, an. What is a10?
A geometric series begins 10,5, 5/2, 5/4, 5/8, ... Find the common ratio r for this series and then the formula for the nth term of series, an. What is a10?
04/24/16
Find the first five terms and the fifth partial sum of the sequence whose nth term is an=n2-3n.
Find the first five terms and the fifth partial sum of the sequence whose nth term is an=n2-3n.
04/24/16
Precalc Math HW help please!
Consider the equation cos(3.10t)=.3. Find the smallest positive solutions in radians and round your answer to 4 decimals.
04/24/16
if the area of the segment is 16p -32 square feet, what us the length of the radius of circle O?
Area of a segment that is 16π - 32 square feet, how do I find the radius?
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