Saturday
December 7, 2013

# Posts by D

Total # Posts: 272

physic
f(t)=ct

physics
A 5.9-kg rock and a 3.0 10-4-kg pebble are held near the surface of the earth. (a) Determine the magnitude of the gravitational force exerted on each by the earth.(b) Calculate the magnitude of the acceleration of each object when released.

Algebra,Geometry
You could actually set "X"=0 to find Y, and then plug in a "0" for Y to get X.

Math
Thank you!

Math
I think. I am honestly not sure what to do.

Math
The volleyball court -if it id 80 ft long and 50 ft wide, how would you find the dimensions of the court? Explain please! Remember that I am a 6th grader. Please don't give me a 10-12th grade answer.

a student wants to estimate the population size and density of birch trees in a woodlot measuring 100 m by 100 m. On a diagram of the woodlot, she splits the area into a 10 by 10 grid and randomly selects 10 sample quadrants - (0,0), (1,4), (2,6), (3,9), (4,3), (5,5), (6,1), (...

d
the school auditorium has 8 rows of seats, divided in three rows. Each section has 15 seats. How many seats are there in total?

health
The lower thigh muscles are rectus femoris, vastus lateralis and medialis. Located in the back of your leg are the hamstrings. These muscles help you run, jump, and walk!

statistics
In a survey of 400 college students, 40 were left-handed. Treating the sample as if it were random and using 0.015 as the standard deviation of the sampling distribution of the sample proportion, what is the lower bound of a 95% confidence interval for the population proportion?

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