Posts by moses
Total # Posts: 53
Consider the following Matrix: A= [-2 0 1 -1 -2 1 1 -1 0 ] Choose the correct description of A. Find A?1 if it exists. Multiple Choice homework question: 1) A is Nonsingular; that is, it has an inverse. A^-1= 2) A is singular; that is, its inverse doesn't exist. Thanks!
February 1, 2017
A motorboat takes 5 hours to travel 100mi going upstream. The return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
February 1, 2017
A block and tackle pulley system is used to lift a mass of 200 kg.if the machine has a velocity ratio of 5 and efficiency of 80%.sketch the possible arrangement of the system
November 27, 2016
A2. Reviewed statistics indicated that there is an average of five thefts per day from a large supermarket operating from 08 00 to 19 00 six days a week. Find the probability that there (a) are no thefts in a week.  (b) will be ten thefts in any given day.  (c) are four ...
October 27, 2016
A boxfour bed balls and six bule ball. Two ball are pink at roundom one atterthe order without relacement what is the probability. 1 They are both bule ball. 2 The first is the second is bule. 3 One is bule and the order is red
May 5, 2016
A cookie jar contains 6 chocolate chip cookies, 4 oatmeal cookies, 8 peanut butter cookies, and 2 sugar cookies. If a cookie is pulled from the jar what is the probability that it is oatmeal or peanut butter?
February 26, 2016
A toy manufacturer has found that its cost,revenue and profit function can be expressed as function of production of toys in a week and C&R&p represent cost,revenue and profit respectively C=6000+2x R=20x-x^2 all over 2000...suppose production is increasing in the rate of 200 ...
January 30, 2016
Yes they all get the same meaning except number 3 because only one thing has made it defferent from other,which is "sone"...And also #5 is a grammatical and it is commonly used..
November 24, 2015
Their is something wil called volting magma,it base under the ground so it was as soft as a pap and it alway expose to a place where their is a space or hole allowing the air to flow in and it wil forcefully rush out to move out,so when it reach the hole,it will now forming ...
November 24, 2015
a stone tied to a strong is made to revolve in a horizontal circle of radius 4 m with an angular speed of 2 radian per second. with what tangential velocity will the stone move off the circle if the string cuts?
October 22, 2015
a window with a smooth hinge at the top is held open at an angle 30 degrees to the vertical by a horizontal force applied to the center of it lower edge. the force of gravity on the window is 3kgf acting through its mid point. draw a scale diagram of the arrangement and ...
October 10, 2014
A sheet of gold of mass 100g and a teperature of 18.0 degrees is placed flat on a sheet of iron weighing 20g and at a temperature of 55.6 degrees. what is the final temperature of the combined metal.
February 24, 2014
As a technician in a large pharmaceutical research firm, you need to produce 200.mL of 1.00 M a phosphate buffer solution of pH = 7.19. The pKa of H2PO4− is 7.21. You have 2.00 L of 1.00 M KH2PO4 solution and 1.50 L of 1.00 M K2HPO4 solution, as well as a carboy of pure ...
September 14, 2013
A flagpole and a building stands on the same horizontal level.From the point P at the bottom of the building.the angle of elevation of the top T of the flagpole is 65 degrees from the top Q of the building the angle of elevation of the point T is 25 degrees.If the building is ...
March 3, 2013
help please anyone? i'm having a hard time solvig these problems LOGIC CONDITIONAL PROOF. HOMEWORK HELP PLEASE!? A. 1. A -> (B -> C) 2. (C ^ D) -> E 3. -F ->(D ^ -E) / :. A -> (B -> F) B. 1. (A v B) -> -(C ^ D) 2. (-C v -D) -> (E <-> F) 3. (E...
January 17, 2013
I need Help to Answer the following paragraph.(Exam389808 From Penn Foster) Part 4 Instructions: Listen to the passage and fill in the blanks with the words that you hear.Youll hear the poem two times. En la 11. ___________ te llamé. De la oscuridad me llamaste. ...
July 15, 2009
When keyboarding a memo, you mistakenly type Robbert. To get rid of the extra b, place the insertion point before the first b and press the A. Backspace key once. B. Delete key once. C. Insert key to toggle into Typeover mode then press the ...
March 24, 2009