03/24/15

precalculus
In 2008, the population of Kenya was approximately 38.3 million and was growing by 2.64% per year, while the population of Sudan was approximately 41.3 million and growing by 2.24% each year. If... more
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03/24/15

Pre-calc simple question
For the diagram below, you are given that BD = 10 and BE = 4. Compute the outer perimeter of the shaded region in terms of θ.     Here is the... more
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03/24/15

Given the matrices...Find 2A-3B
A= [1 2]      [-1 0] B=[-1 -3]     [4 1] first row=? second row=?   (the brackets for each A and B should be connected)
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03/24/15

Which order pair lies on the graph of the equation?
The linear equation y=4x Represents they number of bracelets y that Jolene can make in x hours. Which ordered pair lies on The graph of the equatio?
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03/24/15

Martina drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 6 hours. When Martina drove home, there was no traff
Martina drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 6 hours. When Martina drove home, there was no traffic and the trip only took 4 hours. If... more
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03/23/15

22.97=-1.34^-n
Trying too find n. I think this would involve natural log, but I'm confused since there's a negative.
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03/23/15

Whats the area of the shaded sectors
Whats the area of the shaded sectors?[IMG]http://i59.tinypic.com/2hdo66e.png[/IMG]http://sv.tinypic.com/r/2hdo66e/8
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03/23/15

There is a fenced equilateral triangle field 100 yards on each side.
At each of the 3 corners is a horse.  Each horse starts running at the same time and at the same speed chasing the adjacent horse on the right.  Each horse follows a curved path until all 3 meet in... more
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03/22/15

express cos330 as its cofunction. Find the exact value of this function.
can someone people SHOW me how to get the answer.
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03/22/15

Exterior angle of a regular pentadecagon?
Having trouble with my math and could really use some help, that would be great. thanks!
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03/22/15

I need help with finding the polynomial with the lowest degree!
Question: -Find polynomial with the lowest degree: -Zeros: 1, 3i,1+squareroot of 2, 1-i
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03/22/15

how high are the poles,in feet?
A cord that is fastened to the top of two poles can be modeled by 1/300x2 -x+550, where x and y are measured in feet. The cord touches the ground midway between the poles. How high are the poles,... more
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03/22/15

Prove the co function identity: cot(3.14/2-u) =Tan u
3.14 is shown As pi
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03/22/15

Sum of the sequence 33+34+35+36+...+122
I've been trying to do this pattern for 4 days now. I've even went through and plugged in every number separately and I still can't get the answer. Please help!
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03/21/15

Volume and Surface Area of Gabriel's Horn
Could you fill Gabriel's Horn with paint? How much paint would it take? Could you paint the outside of Gabriel's Horn?
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03/21/15

I how to solve this in elimination. If it's no solution or infinitely many solutions I'm absolutely confused
-3x—2y=6 3x+2y=0  
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03/21/15

the minimum weight resistance is 8% of the weight of the person using the u gym, find the minimum weight resistance possible for a 230 pound man
Minimum weight resistance is what
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03/21/15

Right Triangle ABC has vertices A(-4 2) B(-4 6) and C(9 6) Please Help
Calculate the area of a polygon
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03/21/15

If you invest $3600 per year at 8% for 42 years, you get $1,236,148. How do you get this number?
what's the formula?
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03/21/15

Equation for the temperature of a cake in terms of time
A cake bakes at 350 degrees. The room temperature is at 70 degrees. Every minute, the temperature difference (between the cake and the room) drops by 20%. What is the equation for the temperature... more
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03/21/15

how to solve quadratic equations by factoring
6n^2-18n-18=6
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03/21/15

If 267,000 jobs increases to 301,710 jobs over 10 years, what is the annual growth percentage?
Thank you for trying to answer.  It's much appreciated if someone can answer for me.
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03/21/15

Draw line with slope and intercepts
Draw a line with a positive slope and a negative x intercept and negative y intercept
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03/21/15

Identify the center, radius, and graph of (x-2)2+(y+4)2=4.
Identify the center, radius, and graph of (x−2)^2+(y+4)^2=4.(a) Enter the center as an ordered pair, including the comma.The center is at ....(b) Enter the radius exactly. Do not use a decimal... more
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03/21/15

how come to know which problem is two variable problem and which is one variable problem?
1. one test tube contains some acid and another test tube contains an equal quantity of water. to prepare a solution, 20 grams of the acid is poured into the second tube. then two thirds of the so... more
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