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(6 - 2) - (6 - 9) / (-3 + (-3))
- 3 1/2.
- 4.
- 4 1/2.
Isn’t this - 7/6?
What is 10! / 8!?
- 1.25, because 10/8 = 1.25, dividing the arguments of the factorials gives 1.25 which is not how factorial division works
- 2, because 10 - 8 = 2, subtracting the factorial arguments gives the difference but not the ratio of factorials here
- 90, because 10!/8! = 10 x 9 = 90, the remaining factors after cancellation are 10 and 9 which multiply to 90
Πως βγαίνει αυτό
What is the area of the trapezium shown?

- 24 cm^2
- 27 cm^2
- Area cannot be calculated from information given.
but after have analized the drowning, the real drowing, after some calculations is different from that...the left side, is inclined whit negative value (le lef side gone to the right of the upper base, like that ________
\
\____________\)
because the right angle is about 62.7° so the long of the base of that triangol is little above 2.1, 7-2.01 =4.99 that means what I have wrote
A compressor shaft rotates on
- sintered bearings
- ball and roller bearings
- plain bearings
What about Needle Roller bearings, those are not balls?
When a propeller is removed, the securing parts are kept with
- all separately in cases.
- the propeller.
- the engine.
WHY NOT KEEP WITH PROPELLER?