10/29/16

I need to complete the square, but I still can't get the answer right.
x^2+40x+c
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08/07/16

How do you calculate Cumulative Discount Cash Flow
How do you calculate Cumulative Discount Cash Flow?
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07/01/16

Probability Combinatorics: Balls in a Bag
There's 14 balls in a bag. 3 of them have a prize, 11 of them do not. You get three chances to pick a ball out of the bag. After each pull, the ball you pulled does not go back into the bag,... more
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06/12/16

The 2 kg, uniform horizontal rod with a point .25 m from the left side and .75 m from the other side. What is the gravitational torque about the point shown?
The answer is -2.1 N m and I don't know how they got that. 
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04/23/16

Electric field at a point is defined as
hdsfkjhsdjkfh
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04/13/16

Solving by subsitution
x-y=0 -6x+5y=4   Can anyone help me with this problem? Im really struggling.
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04/13/16

I need a little physics help
I need a little physics help If d = vi x t + 1/2 a x t^2 and a= 15 m/s^2 to the westd = 3000 mwestiv= 0 m/sHow do I solve for time and plug the numbers into the equation?
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03/21/16

What is the centripetal acceleration?
Please list formulas   Aturntable for vinyl records works by constraining the needle to track inside a groove in a very close approximation of uniform circular motion. If the turntable rotational... more
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03/21/16

Permutation or Combination?
How would this problem be solved?   Suppose that each of the 24 contestants at the Hunger Games confronts all the other contestants but none die in the process. How many total confrontations... more
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03/17/16

P=2l +2w If l=3.75 and P= 12.26. Solve for w
Hi, I need help solving for w
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03/11/16

Pi Problem
A standard running track is approximately a quarter mile or 400 meters in length around the inner lane. It consists of two straight away strips and two semi-circle arcs. If each straight away is... more
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03/06/16

need full steps pls
Rationalize the denominator and simplify ? (sqru5)/(sqru5 -2) 
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03/06/16

College algebra help
Peoples Garment Company makes and sells tee shirts featuring now defunct sports teams from Chicago's past. Assume the company's fixed monthly cost are $3,500 and each t-shirt costs $16 to produce.... more
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03/06/16

I want my model car to go as slow as possible down an incline, wheel size?
It's just a model car I'm building for a science project and I want it to go as slow as possible down a sleep incline and I need to know what size wheels I should use for it, it's a roughly 8 inch... more
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03/06/16

What is the difference between angular velocity and angular frequency?
And when are they considered the same?
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03/03/16

You roll two six sided dice. What is the probability that you will roll an even the first time and a 5 on the second roll?
 You roll two six sided dice.  What is the probability that you will roll an even the first time and a 5 on the second roll?
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03/02/16

Could someone show me what i'm doing wrong?
81-4r^2   so i tried breaking them up and got (9-2^r) (9+2^r)   or do i have to break it up further? could someone help me i really want to learn this
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03/02/16

Solving a system of equations using substition
A serving of rice contains 251 calories and a serving of beans has 227 calories. How many servings of rice and how many servings or beans will provide a total of 2,187 calories if the person eats... more
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03/02/16

two sets are formed using 100 elements. there are 69 elements in one set and 74 in the other. how many elements are in the intersection of the two sets
 i need helping finding out how to do this answer 
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03/02/16

What is the probability that the string of lights will remain bright?
A string of 20 holiday lights is wired in series so that if any light fails, the whole string will go dark. Each light has a probability of 0.02 of failing during the holiday season. The lights... more
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02/27/16

Find the derivative of the function.
Find the derivative of the function f(x)=(x+1)^104
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02/24/16

Sally can paint a room in 2 hours while it takes Steve 9 hours to paint the same room. How long would it take them to paint the room if they worked together?
It says (Simplify your answer. Type an integer or a fraction) I got 2 1/3 hours but I dont know if that is correct
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02/24/16

A pendulum bob is moving 1.8 m/s at the bottom....
A pendulum bob is moving 1.8 m/s at the bottom of its swing. To what height above the bottom of the swing will the bob travel? Show all work   Answer: 0.17m
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02/23/16

a material weighs 400N in air. density is 1600 kg/m^3, what is weight immersed in water?
I dont understand how to calculate this.  
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02/23/16

I'm not allowed to use the Chain rule in my midterm, what else can I do to find the derivative of f(g(x)) functions?
I am quite puzzled because I was just told by my professor that we won't be allowed to use the Chain rule in the exam, but in the practise exam they gave us functions like y=e^3x+x to... more
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