Re: [計量] 請教幾題~"~
※ 引述《butini (hackneyed)》之銘言：
: #1
: 5. If [x] reprents the greatest integer less than or equal to x,
: what is the solution to the equation 1 - 2[x]=-3
: (a)x=2
: (b)2<= x <3
: (c)2<x<=3
: (d)2<x<3
: (e)there is no solution Ans:(e)
: 這是說例如2.xx=3嗎 還是2.xx=2?
: 20. if a cube has an edge of length 10, then the length of the segement
: connecting the center of a face of the cube to any vertex not contained
: in the plane of that face is
: (a) √6 (b)6√5 (c)5√6 (d)3√5 (e)10√6 Ans:c
: **前面剛有人po過 不過回文還是看不懂..冏
: 28.After the first term, each term in a sequence is 3 greater than 1/3 of
: the preceding term. If t is the first term of the sequence and t≠0, what
: is the ratio of the second term to the first term?
: Ans:(t+9)/3t
: 題目看不懂.. 3 greater than 1/3那邊
3 greater than (1/3 of the preceding term)
比前一項的1/3 多3
t, (1/3)*t +3
: #2
: 6. if the sum of the two number is 21, and the difference of their square
: is 63, what is the greater of the two numbers?
: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^問啥@@"
: Ans:12
: 8. For all real number, 6a-2, 3a, and a+2 are in arithemetic progression.
: Column A: a+1
: Column B: 0
: Ans:A
: 順便想問real number的定義為何?實數包含正整數 負整數 and??
全部都包含 複數就是有a+bi的 只要沒有i的都是實數
看不懂在問什麼
好像是說 三個成等差級數 但又解不出來
: 22. of the 120 people in a room, 3/5 are women, and 2/3 are mirried.
: ^^這個and是說其中女性有2/3結婚
: 還是說120個裡面2/3結婚XD
: Column A: the maximum number of women in the room who could be unmarried.
: Column B: 72
: Ans:B
: 28. the sum of the digis of a three-digit number is 16.
: The tens digit of the number is 3 times the units digit, which is 1/4
: of the hundreds digit.
: column A: the three-digit number
: Column B: 800
: Ans:A
: 有點多 請見諒~"~
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