08/20/15

After 2 hours, $82.75. After 6 hours, $360.75. How much after 8 hours?
Concession stand vendor ^
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08/19/15

Explain why the same molecule can have the same density at different temperatures
The density of water at 98 degrees Celsius is 0.95979 g/cm^3.  The density if water at -8 degrees Celsius is 0.99865 g/cm^3.  Explain why the same molecule can have the same density at different... more
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08/19/15

Mass of a liquid
a student pours 22.5 ml of a liquid that has a know density of .1478 g/cm3 what is the mass of the liquid
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08/19/15

If f(x) and g(x) are odd functions, then what type of function is y=f(x)g(x) ?
Multiple Choice  a) Odd b) Even c) Neither d) Cannot be determined for sure
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08/19/15

Solve for the indicated variable
S=2B+Ph ,B
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08/19/15

Given the functions
Given the functions f(x)=x2-4 and g(x)=x2-3x+2 determine a simplified equation for h(x)=f(x)/g(x) 
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08/19/15

Mr Adam and Mr Ouyang interviewed 75 students and found that 35 were in favor of changing date for Exam
a)If Mr Persaud selects 5 students and surveys them, what is the probability that more students are in favor of changing the date?   b)What is the expected number of students who want Exam date... more
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08/19/15

8f(x)+6f(1/x)=x+5 & y=x^2f(x) , find dy/dx at x=-1
This is about calculus....... Can someone help me out in this
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08/19/15

Calculus Kinetic Energy Question?
The kinetic energy, E, of a moving object is directly proportional to the square of its velocity, v. The velocity of a certain object is 3 meters per second and its kinetic energy is 15 joules.... more
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08/18/15

suggest me a real world application of linear algebra to civil engineering
I have to submit term project in linear algebra that has a real world application to civil and construction engineering. I searched in the internet a lot to find an idea but I have got... more
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08/18/15

A line contains the points (1, –6) and (–2, 6). What is the slope of a line that is perpendicular to this line?
A. B. 4 C. D. –4
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08/18/15

What does the period and amplitude mean?
What exactly does the period and amplitude represent or mean? I know how to calculate it, but how can I link it back to my assignment on Biorhythms. E.g. The period represents the length of time... more
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08/18/15

If four decks of cards are shuffled together, what is the probability of dealing a 13-card hand you have exactly two black Queens?
a little confused with this question any help would be appreciated!
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08/07/15

what is the range of f(x) = 1/(9-x^2)^1/2
chapter = relations and functions '^' stands for 'raised to ' or 'to the power'
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08/06/15

If the cube is melted down and the metal used to make 32,000 identical ball bearins, what is the weight, in pounds, of one of these ball bearings?
The full question:   A metal cube with sides of length 2 feet has a uniform density of 100 pounds per cubic foot. If the cube is melted down and the metal used to make 32,000 identical ball... more
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08/06/15

[-10i-2(5^1/2)]/5i-(5^1/2)
am supposed to rationalize this. please help!!!!!!!!!
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08/05/15

Determine the order of matrix?
Determine the order of matrix     1  8  3 1  1  1 4 19 0 0  1  0      
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08/05/15

Question about a Circle, help please?
In circle O, CD = 44, OM = 20, ON = 19, CD is perpendicular to OM, EF is perpendicular to ON , (The figure is not drawn to scale.) Show your work. a. Find the radius. If your answer is not an... more
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08/01/15

Why is the SD in (d) which is 12,10,9,8, 6,45 is larged compared to 12,10,9,8,6
Why is the Standard deviation which is 12, 10, 9, 8, 6, 45, so large compared to Standard deviation 12,10,9,8,6
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08/01/15

Solve the equation or inequality.
Solve the equation or inequality.p/p−2=2/5
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08/01/15

3000 is distributed among A B and C such that A gets 2/3 of what B and C together get and C
3000 is distributed among A B and C such that A gets 2/3 of what B and C together get and C gets 1/2 of what A&B together get find C share   A+B+C=3000                                      ... more
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07/31/15

Mathmatics Radical Numbers Problem
Hello, If, (√5+1) / (√2-1) = x then, (√5-1) / (√2+1) = ?
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07/30/15

A roulette wheel is 34 inches in diameter. Several people play the game inside a van moving at 25 mph...
A roulette wheel is 34 inches in diameter. Several people play the game inside a van moving at 25 mph. The speed of the wheel edge relative to the ground is higher on the left side of the van than... more
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07/30/15

mean of a list 7 numbers is 45. If i add 2 numbers to the list, the mean of the list becomes 37. what is the mean of the two numbers that I added to the list.
use a number line  
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07/30/15

On the equator at the at the vernal equinox, at noon a straight stick driven vertically in to the ground casts a shadow.
On the equator at the at the vernal equinox, at noon a straight stick driven vertically in to the ground casts no shadow. What is the percent difference in the lengths of it's shadow measured at... more
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