Sunday
December 8, 2013

Posts by steven

Total # Posts: 364

Geometry
Given the sets A={2,15,21,5,13} and B={6,9,15,12,21} , what is the sum of all the elements in A¾B ?

Geometry
The three interior angles in a triangle are x ∘ , (2x+24) ∘ and (3x+48) ∘ . What is the value of x ?

Physics
I got to, mv^2/r = mew(mg) that's it...... idk how im supposed to solve all those unknowns....

math
that is such a mission though lol, is that the only way?

Combinations and Permutations, Steve and Ms. Sue☺
i mean 8 not a

Combinations and Permutations, Steve and Ms. Sue☺
the answer for number 2- is b and a b 1140

Statistics
DM Co. sells computer parts by mail. The company claims that at least 90% of all orders are delivered on time. A sample of 150 orders showed that 129 were mailed on time. Is the company’s claim true? Test using the 2.5% level of significance. Use the 5 step procedure.

Statistics
A hospital claims that the mean waiting time at its emergency room is 25 minutes. A random sample of 16 patients produced a mean wait time of 27.5 minutes with a standard deviation of 4.8 minutes. Use the 1% level of significance to test is the wait time is different from 25 m...

Algebra
As x ranges over all real values, what is the minimum value of f(x)=|x-123|+|x-456| + |x-789| ?

algebra
Find the sum of all positive integers b such that b^2=a^3+1, where a is a prime number.

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