Math
Noting that 666=2x3^2x37, find phi(666) using Euler Theorem.
Math
Find the last two digits (units and tens digit) in 1829^1829 and find the units digit in 23^7777.
geometry
Martha climbs 40 steps to reach the first floor of a building. If the vertical and horizontal distance of each step is 1.5 ft and 1 ft, find the distance between the start and end points of each step.
Algebra
Please help!!!! (square root of x) + 3 = square root of (x+12)
Algebra
the length of a rectangle is 1 inch greater than its width if its dimensions are doubled its area increases by 36 square inches give an equation to find its dimensions
history
thanks! Just as I thought just wanted to make sure
history
How do I know why someone wrote a journal(history) or why we still read it today?
trig
a 7 foot tall man is standing 65 feet away from a tower. if the angle of elevation is 35 degrees. what is the height of the tower to nearest tenth of a foot?
Trigonometry
express in terms of sine and cosine. a) tan theta/ cot theta i know the answer is sin^2 theta / cos ^2 theta but how do you do it?
science-Help!
thanks a lot.
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