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cos t = 2 tan t |
2008-02-06 |
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peggy pose la question :
cos t = 2 tan t. Find the value of sin t.
I can not solve this problem. I have the answer and some hints, but I need a step by step answer.
I really want to understand how this problem is solved.
Stephen La Rocque lui répond. |
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How tall is the pole? |
2008-02-06 |
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GENEVAMILTON pose la question :
A WIRE THAT IS 6 FEET LONG IS ATTACHED TO A THE TOP OF A POLE THE WIRE IS ANCHORED IN THE GROUND AT 4 FEET FROM THE BASE OF THE POLE HOW TALL IS THE POLE?
Stephen La Rocque lui répond. |
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Four digit numbers containing 85 |
2008-02-06 |
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Vonda pose la question :
How many four digit numbers contain the digit pattern 85 at least once and only once?
Stephen La Rocque lui répond. |
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Bales of hay |
2008-02-06 |
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mark pose la question :
5 bales of hay are weighed 2 at a time in all possible ways. The weights are
110
112
113
114
115
116
117
118
120
121
How much does each bale weigh
Stephen La Rocque and Penny Nom lui répond. |
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The cost before tax and shipping |
2008-02-06 |
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jonathan pose la question :
Please explain how to solve this problem. I know you have to work backwards. If i have $125 to spend, how do I know the most I can spend before adding 6% tax and 9% shipping.(shipping is cost before tax) I can only figure this out by trial and error. I know there is a better way
Penny Nom lui répond. |
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A pre-employment evaluation |
2008-02-06 |
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lisa pose la question :
An employer gives a pre-employment evaluation to a large group of applicants.
The scores are normally distributed with a mean of 154 and a standard
deviation of 21. The employer wants to interview only those applicants
who score in the top 15%. What should the cut off score be for the interviews?
Harley Weston lui répond. |
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A positive integer with 2007 digits |
2008-02-06 |
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Tom pose la question :
Prove that there's a unique positive integer of 2007 digits lenght, divisible by 2^2007, and made up solely by the digits 2 and 5.
Penny Nom lui répond. |
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The game of 24 |
2008-02-06 |
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Jameeka pose la question :
What is a solution for 10,11,9 and 2 (Using fractions) in the game 24 square.
Penny Nom lui répond. |
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The domain and range of a function |
2008-02-05 |
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Victoria pose la question :
Please...Please...Please tell me how to find domain and range.
Every text and website i have gone to does not make any sense to me!
Below are two example problems i found on a website...
f(x) = (8x-3)/(4x-1)
and
y = 2x+1
Please explain step by step how to find the domain and range.
Penny Nom lui répond. |
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The equation of a circle |
2008-02-05 |
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aime pose la question :
Find the equation of the circle tangent to 3x+4y-15=0 at P1(1,3) and passing through P2(6,3) and P3(0,5)?
Stephen La Rocque lui répond. |
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Multiplying decimal numbers |
2008-02-05 |
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alwyn pose la question :
Why should when you Multiplying Decimal numbers is value becoming less and less? don't you think even decimal number is a quantity and in no chance when it multiplies its should become less or nil !!!
In fact all Multiplying and or adding the value will go up and only when you subtract and divide it should become less !!
Stephen La Rocque and Penny Nom lui répond. |
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How fast does each travel? |
2008-02-05 |
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kRYSTAL pose la question :
May rides her bike the same distance that leah walks. May rides her bike 10km/h faster than leah walks.
Its takes May 1 hour and Leah 3 hours to travel the sam distance, how fast does each travel?
Penny Nom lui répond. |
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Cost per square yard |
2008-02-05 |
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Terry pose la question :
MY cost for seed is $325.00 per acre...i want to bring that down to $ per sqyard. Whats the formula?
Penny Nom lui répond. |
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Two spinners |
2008-02-05 |
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Kim pose la question :
Zack has two spinners with numbers on them. the probability of spinning
a 7 on both spinners is 3/20. if the probability of spinning a 7 on the first
spinner alone is 1/4 what is the probability of getting a 7 on the second
spinner alone?
Penny Nom lui répond. |
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The radius of a circular arc |
2008-02-04 |
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Bill pose la question :
Hi,the Central Angle of a sector of a circle is 40 degrees. The circular arc of the curve has a chord length of 3000 ft. Find the radius(r) of the circular arc.
Penny Nom lui répond. |
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