Friday
December 13, 2013

# Posts by kathleen

Total # Posts: 117

physics
How long will it take a 1280 W motor to lift a 345 kg piano to a sixth-story window 19.0 m above?

OLSAT
I don't know if this can be answered here but, I will ask. My son took the OLSAT test. He is a first grader but, on my assessment results he is listed as a 4th grader. His SAI is 110. Would this error change his results?

maths
how do you draw a line of best fit on a scatter graph?

maths
how can you divid it down ms sue

maths
what is the ratio in the simplest form 120:60

maths
thankyou ms sue

maths

algebra
How do you solve an equation like: (5-11)/x+2=3

Math
I am stuck on a problem that has to do with the double angle formulas. I have to solve this: 4sinxcosx = 1. I tried using the formula 2sinu = 2sinucosu by substituting it in like this: 2(2sinxcosx)= 1 but then I am stuck

chemistry
what is the number of mole equivalents of H2 produced by the reaction of 1 mole equivalent of Mg (m) with H2SO4 (aq)?

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