[計量] 想問幾題計量
5. If 3 is multiplied by 10 and 3 is added to the result..........and if this process is continued up to ten digits….like 3
3 3
3 3 3
3 3 3 3
.......... so on till 10 digits
Find the sum of all 3's in 100th place?
John wrote a phone number on a note that was later lost. John can remember that the number had 7 digits, the digit "1" appeared in the last three places and "0" did not appear at all. What is the probability that the phone number contains at least two prime digits?
a) 15/16
b) 11/16
c) 11/12
d) 1/2
e) 5/8
A circle passes through the three vertices of an isosceles triangle that
has two sides of length 3 and a base of length 2. What is the area of this
circle?
ans:81pie/32
The arithmetic mean and standrad deviation of a certain normal distribution are
13.5 and 1.5 respectively. what value is exactly 2 standard deviations less than
the mean?
ans:10.5
If -1<x<0
a. mod(x-1/2)
b. mod(-x-1/2)
以前數學老師沒教mod 不知道mod怎麼用 上網查了還是不太會
麻煩幫忙解題了!!
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推
12/15 23:48, , 1F
12/15 23:48, 1F
推
12/16 00:29, , 2F
12/16 00:29, 2F
→
12/16 00:30, , 3F
12/16 00:30, 3F
推
12/16 00:44, , 4F
12/16 00:44, 4F
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