Wednesday
December 4, 2013

Posts by Lina

Total # Posts: 134

math156-proportions
cross multiply. So for #1 It becomes (4)(5) = 15x in the next step. then continue to find X

Pre-Algebra
(7y)(5z) = 35yz (-10r)(5s) = -50rs

physics
A man stands on the roof of a 19.0 m-tall building and throws a rock with a velocity of magnitude 30.0 m/sat an angle of 42.0 degrees above the horizontal. You can ignore air resistance. Calculate the maximum height above the roof reached by the rock. Calculate the magnitude o...

language arts
breaking it down into simpler structure would be: The boy tricked the girl subject is boy.

algebra
distribute the 5 first x+9=20x-10 combine like terms 19=19x x= 19/19 x=1

physics [vectors]
The concept i get, but somehow i just can't execute this problem, please help me! You are given vectors A = 5.5 6.2 and B = - 3.7 7.4 . A third vector C lies in the xy-plane. Vector C is perpendicular to vector A and the scalar product of C with B is 19.0. I need x and y c...

Calculus
this is how you plug it in: [(x + Δx)^2 + 1- (x^2 + 1)]/(Δx) Rework the equation to get: Δx + 2x, in it should be lim as Δx goes to 0, and that would leave you with 2x, which if you used easy method, leaves you with same answer.

statistics
females males 26 33 35 40 75 50 63 32 36 28 71 39 54 32 68 33 37 31 48 36 42 26 43 37 73 38 55 21 47 39 71 48 27 38 56 36 37 59 25 59 88 53 42 59 33 35 66 38 45 24 53 28 46 45 74 28 58 23 51 15 58 61 48 31 48 17 42 55 55 31 50 55 61 37 28 36 41 20 58 48

statistics
A researcher has observed independent samples of females and males, recording how long each person took to complete his or her shopping at a local mall. The respective times, in minutes, are listed in file. Using the 0.025 level of significance in a one-tail test, would femal...

statistics
Please only the formula and steps to do this problem. Thank you An assembly process includes a torque wrench device that automatically tightens compressor housing bolts; the device has a known process standard deviation of ó = 3 lb-ft in the torque applied. A simple ran...

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