02/08/17
an urn contains 5 red, 8 yellow, 6 orange marbles. 5 marbles are selected without replacement. How many ways can we select exactly 1 red and 1 yellow marbles
Finite math! I need help please and thank you!
02/08/17
College Algebra Word Problem
If an object is projected upward from ground level with an initial velocity of 160 ft per sec, then its height in feet after t seconds is given by s(t)= −16t squared +160t. Find the number of...
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02/07/17
in a survey of 1120 investors it was determined that 690 invested in stock, and 595 invested in bonds, and 320 invested in both, how many invested in stocks
In a survey of 11201120 investors, it was determined that 690invested in stocks, 595in bonds and 320 in both stocks and bonds.a. How many invested in only stocks? b. How many invested in stocks or...
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02/05/17
There are 4 balls in a bag of two balls are drawn and found to be white find probability that all balls are white?
I have the solution, I just can't get it. The answer says 3/5, wouldn't be it 1/3 as there are either 2 or 3 or 4 white balls. I know they are not mutually exclusive but in the solution they...
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02/04/17
Algebra-Economics word problem
Suppose a company has fixed costs of $35,200 and variable cost per unit of 2/5x + 333 dollars, where x is the total number of units produced. Suppose further that the selling price of its product...
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02/03/17
y=2x^2cosx
TRIG reallllllllllllllllllllllllllllllllllllllllllyyyyyyyyyyyyyyyyyyyyy is harrrrrrrrddddddddddddddddddddddddd
02/03/17
Math Problem
For a long time, the number of teachers at AUB has been about 560 and the average number of years in service has been 17.
(1) How many teachers per year are hired at AUB, on average?
(2) How many...
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02/02/17
Word problem sum of geometric series
Michael is saving 400 dollars a month towards retirement in an account that earns 4% annual interest. Michael plans on saving this for 10 years (120 months). How much money will he have saved?...
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01/31/17
5th grade math word problems
Tana made paper cranes. 2/7 of the cranes yellow and 1/5 of the remainder were blue. The remaining cranes were orange. If she made 70 more yellow cranes than blue , how many orange cranes did she...
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Parabolic Equation & finding points?
A parabolic swing design is modeled by the equation (x-2)^2=1/2(y-1). if a horizontal support bar is placed 32 feet above the vertex of the swing find the points were the support bar intersects...
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01/30/17
If the point P is on the graph of a function f, find the corresponding point on the graph of the given function:
If the point P is on the graph of a function f, find the corresponding point on the graph of the given function: P(2, 8); y = 11 square root f(x^2) where x>0. Enter your answer in exact form.
01/30/17
If the point P is on the graph of a function f, find the corresponding point on the graph of the given function:
If the point P is on the graph of a function f, find the corresponding point on the graph of the given function: P(2, 8); y = 11 square root f(x^2) where x>0. Enter your answer in exact form.
01/30/17
A hangar is formed of a half cylinder with a rectangular base and two open, semicircular ends. The curved roof costs $3 per ft2 to build.
Find an expression that represents the cost per volume of the hangar (dollars/ft3) to build the curved roof. Your cost should be a function of the radius r of the semicircular end. (Round your...
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01/30/17
can I have this one with steps please because I dont get it
x+y+z=15000
10x+6y+4z=82000
10(1/2x)+6y+4z(1/2z)=47000
5x+6y+2z=47000
01/29/17
Algebra and mathematics
The sum of eight and three times a number is 56. What is the number?A) Translate the statement above into an equation that you can solve to answer this question. The structure of your equation...
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01/26/17
population mean from sample?
A random sample of 49 observations is taken from a normal population with a variance of 100. The sample mean is 25 . Find the unbiased estimate of the population mean
01/25/17
One side of the screened-in porch tripled and the adjacent side increased by 10These changes will result a rectangular room 6 times the area of the screen-in p
Please Help!!!
01/25/17
One side of the screened-in porch tripled and the adjacent side increased by 10These changes will result a rectangular room 6 times the area of the screen-in p
PLease HELP!!
01/25/17
at a center the numberof male increases by 20% to 96 and the number of female decreases by 30% to 84 find the overall increases or decreases in total members
at a fitness center the numberof male increases by 20% to 96 and the number of female decreases by 30% to 84 find the overall increases or decreases in total members
01/25/17
How much blue paint should I store mixed with 17 quarts of yellow paint to make glowing green paint
With a ratio of 3 to 4
01/25/17
the ratio of the number of oranges to the number of apples is 1 to 3. 21 oranges were added and the ratio became 4 to 5. How many fruits were there initially
Theirs nothing more to say
The ratio of 2/3, 1218
The ratio of 2/3, 12/18
01/24/17
The length of a rectangle is three less than five times the width. The perimeter is ten times the width. Find the dimensions and perimeter of the rectangle.
Need help fast!!!!!!!!!!
01/22/17
The ratio of the number of vans to the number of motorcycles is 11:15. Each van has 4
The ratio of the number of vans to the number of motorcycles is 11:15. Each van has 4 wheels and each motorcycle has 2 wheels. If all the vans and motorcycles have a total of 592 wheels, how many...
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