11/04/16

Exponential Growth
Dissolving a chemical--The amount of a chemical that will dissolve in a solution increases exponentially as the (Celsius) temperature t is increased according to the model A(t) = 10e^0.0095t. At... more
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11/04/16

what happen to element when gamma rays is emitted by him
what happen to element when gamma rays is emitted by him
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11/03/16

Line perpendicular
A line contains the points (-1,1) and (5,4) The slope is 1/2 The equation of the line in point-slope form is: (y-1) = 1/2(x- -1) The equation of the line in slope-intercept form is: y = (1/2)x +... more
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11/03/16

What is the final velocity the plane?
A 45,000 kg plane flying at a velocity of 242 m/s experiences an impulse of 720,000 newtons per second. What is the final velocity of the plane?
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11/03/16

find an equation of the line parallel to the line y=5 and passing through -2,-3
find an equation of the line parallel to the line y=5 and passing through -2,-3
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11/03/16

2-d force problems with newtons laws
a child drags a 0.518 kg toy elephant across flat ground at constant speed, with a 5.23 N force at a 51.0° angle. What is the normal force acting on the toy? 
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11/03/16

a soccer ball is being inflated at a rate of 50 cm cubed/min. Determine how fast the radius of the soccer ball is increasing when the diameter is 25 cm
In my calculus class we had to come up with our own problem to present to the class. I just wanted to make sure the answer I have is right.
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11/03/16

A 100 mL graduated cylinder was filled with water to the 50 mL mark. A rock was then added to the cylinder. After the rock was added, the volume of the cylinder
Dont understand how to find volume  
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11/03/16

find an equation of the line with y-intercept(0,-3) and slope of 1/4
find an equation of the line with y-intercept(0,-3) and slope of 1/4
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11/03/16

Hydrogen fuel must be stored carefully as mixtures of oxygen and hydrogen are explosive
Hydrogen fuel must be stored carefully as mixtures of oxygen and hydrogen are explosive
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11/03/16

Physics Help
7) An iron cylinder of mass 270 grams and radius 2.0 cm rolls (without slipping) down an incline. The vertical height of the incline is 44 cm and it makes an angle of 34° with the horizontal.... more
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11/03/16

Astronaut question Help Physics
An astronaut with a mass astr = 65 kg and wearing a tool belt full of tools that have a combined mass of 15 kg (so initial mass is 80 kg) is floating beside a space station 22 meters away. The... more
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11/03/16

In 1991 a person is 14 years old. In 1997, that same person is 8 years old. How can this be? Can anyone help?
word problem
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11/02/16

Math home work help
If Z varies inversely as w, and z = 8 when w=3, find z when w = 6.    Z=
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11/02/16

Fran added 3 decimal numbers together and got exactly 4.What might those the decimal numbers be?
I have to figure out the answer between monday to friday
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11/02/16

Physics homework questions
1) Suppose that when you move a magnet through a 26.3-turn coil at a certain speed, a voltage of 51.0 Volt is induced across the coil. If you move the same magnet through a 445.5-turn coil at the... more
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11/02/16

Determine whether the graphs of y= -(1)/(5)x+1 and 2x+10y=3 are parallel lines, perpendicular lines or niether
Determine whether the graphs of y= -(1)/(5)x+1 and 2x+10y=3 are parallel lines, perpendicular lines or niether
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11/02/16

Determine algebraically whether the function is even, odd, or neither?
f(x)=3 x 3+5
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11/02/16

A plane touches down at 82.3 m/s and takes 1710 m to come to rest. What is the rate of acceleration?
  A plane touches down at 82.3 m/s and takes 1710 m to come to rest. What is the rate of acceleration? 
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11/02/16

Cathode current
The equation I = 3.4V^(3/2) gives the cathode (in milliamperes) for a particular color picture tubeas a function of voltage V (in volts). What is the cathode current when the voltage is 80 volts?
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11/02/16

Linear Algebra: Matrix doubts
In A.A-1 = A-1.A How (A-1)-1 = A ?   Tell me the process
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11/02/16

integration
integrate f(t) cos (n*pi*t)/T/2)dt with limit T/2 and 0
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11/02/16

3 more than 5 times a number is 83. Find that number
It's an algebra word problem, but I'm having trouble figuring out how I would set up the word problem? 
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11/01/16

How do I algebraically solve an equation that has exponential on one side and natural log on the other?
The problem I'm stuck on is 1=ln(x-1)+e^(x-2). I solved this by graphing but I can't figure out how to isolate x algebraically since when I try to exponentiate or ln each side, the other operator... more
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11/01/16

5x^2+25x-70
find the GCF of the expression, then i am supposed to factor the expression  
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