04/24/19

Find g(x) = f o f o … o f(x) = f¹⁹⁹⁴ (x), where f(x) = (x√3 - 1) / (x + √3)?
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02/27/19

chebyshev theorem
Americans spend an average of 3 hours per day online. If the standard deviation is 31 minutes, find the range in which at least 88.89% of the data will lie. Use Chebyshev’s theorem.... more
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02/19/19

P(E) is the probability of an event E occuring and O(E) us the odds for an event E occuring
If P(E)=1/3 find O(E)occuring and O(E) us the odds for an event
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09/23/18

Given: △KLM LM=12, m∠K=60°, m∠M=45° Find: Perimeter of △KLM. and Given: △MNO m∠M=45°, m∠O=30° MN=6 Find: NO, MO.
I need help with this math problem
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09/23/18

what is the elastic potential energy
what is the elatic potential energy of a spring with a spring constant of 150 n/m when its extend by 0.2m
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09/23/18

P(A/B)=p(A) then a) A is independent of B, B) B is independent of A,c)both A and B are independent,d)none
P(A/B)=p(A) then.                
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09/19/18

average speed
Having traveled the first 0.25 of the distance of your trip at an average speed of 20.0 km/hr, how fast must you travel for the rest of the trip in order to average 25.0 km/hr?
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09/19/18

A motor boat travels downstream from A to B in 3 hrs,and a raft travels downstream from A to B in 12 hrs how long will it take the boat to go back from B to A
I am having some trouble going about this problem because of the fact you don't know the speed of the motor boat or of the stream 
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09/13/18

Electric Potential and Potential Energy
Point A is at an electric potential of +75V and point B is at an electric potential at -75V. The work done by an external force to move a charge from A to B is 7.5 x 10-4 J. If the charge starts... more
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10/16/17

Acceleration
a small block has constant acceleration as it slides down a frictionless incline. the block is released from the rest at the top of the incline and its speed after it has been traveled 6.80m to the... more
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10/12/17

How far from the fulcrum should a 60 kg mass be placed in order to produce a torque of 90 mN ?
I need help with this problem
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10/11/17

a wire of resistance 4 ohms is bent to form a circle. what is the resisitance between two
a wire of resistance 4 ohms is bent to form a circle. what is the resistance between two ends of the diameter
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10/11/17

Can you help me with this AP Chem problem? thanks
Hydrogen azide decompose on heating by the following unbalanced equationHN3=N2(g)+H2(g)If 3.0 atm of pure HN3 is decomposed initally, what is the final total pressure of the container?What are the... more
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03/10/17

Find the roots by factorisation method
{a/(x-a)} + {b/(x-b)} = {2c/(x-c)}
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03/01/17

30 returns is ages of 20 and 35 who had an adjusted gross income of more than $100,000. Of these 30 returns, 4 had charitable contributions of more than $1,000
What is the probability exactly one of the three audited had a charitable deduction of more than $1,000? (Round your answer to 4 decimal places.) What is the probability at least one of the audited... more
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01/16/17

help please! physics question pt 4 (:
A car drives over a hill at a speed v. The car as a mass m and the hill has a radius of curvature of r. The ground exerts a normal force of FN. Calculate the normal force of the ground up on the... more
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11/10/15

If the committee will consist of 3 councillors and either 1 or 2 planning staff, how many different committees could the council choose?
Full Question:  There are 10 councillors and 12 planning department staff available to serve on a budge committee for the new city council. If the committee will consist of 3 councillors and... more
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10/07/15

Assume that there are 16 board members: 11 females, and 5 males including Mark. There are 4 tasks to be assigned. Note that assigning the same people different
A)Find the probability that both males and females are given a task. B)Find the probability that Mark and at least one female are given tasks.
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04/07/15

Can you please help me ?
The projected cost of a new high school is $20,066,340, of which $5,216,340 will be covered by available grants. Using data from the last census, the planning committee estimated the cost per town... more
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03/09/15

Composition of Functions
Find f(x+h)-f(x)/h for f(x)=2x^2 + 3x   The answer is 4x + 3 + 2h, but I don't know how to arrive at it. I've been always baffled by this type of problem. 
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03/09/15

How many grams of calcium nitrate needs to be added to make 400 mL of solution that has a molarity of 2.5?
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02/15/15

Projectile Motion Help!!
I completed a lab where in a group each member took a turn jumping and the length of the jump as well as the time in the air during the jump. I'm stuck on my final question and am not sure how to... more
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02/11/15

where must the mirror be placed
An incandescent lamp is located 2.4 m from a wall. It is desired to throw on the wall an image magnified three times the diameter, using a concave mirror. What must be the radius of curvature of... more
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02/09/15

focal length of converging glass lens in water
A converging glass lens (n = 1.52) has a focal length of 40 cm in air. Find its focal length when it is immersed in water, which has an index of refraction: nw = 1.33.
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02/07/15

Physics Problem?????
A Scientists want to place a 2600 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 2.2 times the radius of Mars above the surface of the planet. Here is... more
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