$0.00995 is the correct answer.
$3.98/400=0.00995
I think the answer would be C
Answer:
38%
Step-by-step explanation:
Given that X,the hours per week the music student practice follow a normal distribution.
X:N(8,4)
We have to find the percentage of students who practice between 6 and 10 hours.
6<x<10 implies converting to z
We know z = (x-mean)/sigma = (x-8)/4
Hence 6<x<10 is equivalent to (6-8/4)<Z<(10-8/4)
= |z|<0.5
From std normal table we find this area equals = 0.1915+0.1915
=0.3830 = 0.38 (rounded off)
Hence required percentage = 0.38x100 = 38%
Answer:
1/7
Step-by-step explanation:
They traveled 5/7 of the distance on Saturday.
That left 2/7 of the distance as the remaining distance.
They traveled half of 2/7 of the distance on Sunday.
1/2 of 2/7 = 1/2 × 2/7 = 2/14 = 1/7
Answer: 1/7
Answer:the length of segment MN is 12
Step-by-step explanation:
because the angles at the bottom of each segment are equal, the length of each segment is equal as well, so set you equation as 3x=x+8, subtract x from 3x then divide 8 by 2 which equals 4. (x=4) then plug in the value of x into x+8 and you have 12
