09/10/14
Find the quadratic polynomial
Find the quadratic polynomial whose graph goes through the points (-2,9),(0,1), and (2,17)
F(x)=
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09/10/14
Convert to base 10
I do need help on this one.
Convert 101101(base2) back to base 10
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09/10/14
Convert to base 8
Did the work on this one as well, just checking answers:
3152 to base 8
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09/10/14
Need help with this
Ellen works for a high-speed rail company that wants to develop a new rail line. Ellen’s project is to find a train that is the second fastest in the world. The Shinkansen Bullet Train in Japan is...
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09/09/14
Yes, I need to write three equivalent ratios for each given ratio: 1 2/3 : 5/4, help
Yes, I need to write three equivalent ratios for each given ratio: 1 2/3 : 5/4, help
09/09/14
What is the angle between any two faces on a tetrahedron?
A tetrahedron has edges of 5cm each. What is the angle between any two faces?
Please explain how to answer this question. Thanks :)
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09/08/14
Integral of (x^2)/(x^2-9)^(3/2) and use trigonometric substitution
Integral of (x^2)/(x^2-9)^(3/2) use trigonometric substitution
I simplified it to
integral of ((sec of theta)^3)/(tan of theta)^2, but I couldn't figure out how to correctly find the...
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A product costs $429 Today. Write an expression for the cost is t days if the price is reduced at the end of each day by: a. $6 a day b. 4.5% a day
Natural Logarithmic and Exponential Functions.
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09/08/14
How many combinations?
Bob has 25 cents in his pocket, but does not have a quarter. If you can tell all his combinations of coins he should have to sum to 25 cents, he will give you the 25 cents. Please list all the...
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09/08/14
find the values of the following products...... (SUPER PI ;)
i know that the general form for super pi is ∏ak=am*am+1,...,an where k=m to n
im cool with this if the limit is finite.
but i get confused when my upper limit is n...
my specific problem...
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09/07/14
Word problem
To earn an A in a course, a student must get an average score of at least 90 on three tests and a final exam. His final exam score counts as double, and his lowest score is removed if the final...
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09/07/14
you travel 60 miles at 30mph and it takes 2 hrs to get there, if you travel 90mph on the return how long would it take and what would the average speed be?
find the time it would take on the return trip and then the average speed for the trip there and back combined.
09/07/14
If you use the eight digits 1,2,3,4,5,6,7, and 9 each once and only once to form 4 two-digit prime numbers, what will be the sum of the four prime numbers?
If you use the eight digits 1,2,3,4,5,6,7 and 9 each once and ONLY once to form 4 two-digit prime numbers. What will be the sum of the four prime numbers you created?
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09/07/14
Exponential growth problem
Assume you find a mammoth tooth and want to know how old it is; you use the carbon 14 method. Carbon 14 has a half life of 5730 years. Youth tooth has only 4% of the count of a fresh tooth. How old...
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09/07/14
Algebraic esimation
in a counry the number of students who completed high school and enrolled in college the same year increased from 1.3 millions in 2004 to 1.8 million in 2008. Find an equation for the line...
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09/07/14
how many liters of an 8% solution of salt should be added to a 24% solution in order to obtain 880 liters of a 13% solution
general algebra course
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09/07/14
vector with diagram
A lighthouse is at the position of 7i - 3j , relative to the wharf. A boat is travelling in the direction parallel to 3i - j from the wharf. IF all measurements are in km, find to the nearest...
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09/06/14
maths help(circles)
What is the equation of a circle, when the radius is 5 and the points pass through (3, 1) and (-2, -4)?
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09/05/14
A firefighter can search 100 Sq ft in 10 seconds, how many firefighters are needed to search 5000 Sq ft in less than 2 minutes
Not looking for an answer. More how to set this problem up to be solved.
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09/05/14
See math question and equation below please help
suppose the growth of populatoin during the period from 1980 to 2008 can be approximated by an equation of the form y=mx+b, where x is the number of years since 1980 and y is the population...
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09/03/14
Express the function f(x)=|6+8x| as a piecewise function
Express the function f(x)=|6+8x| as a piecewise function
09/03/14
How can I find domain and range when given a data set of coordinates
When i am given a set of coordinates how can i find the domain and range of the set.
09/03/14
How much faster(in miles per hour) is the tip of the blade than the base of the blade?
Full problem: It takes 4.5 second a for a windmill to make a rotation. Each blade extends 116 feet from the central hub that is 6 feet in diameter. How much faster(in miles per hour) is the tip of...
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09/03/14
If a parade 1 mi long is proceeding at 4 mph, how long will it take a runner, jogging at 6 mph, to travel from the end of the parade to the start of the parade?
My answer must be in the units of miles.
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