I think that the length of DE is 4. you can add 0.5 to each side of BC in order to find the length of EF since EF starts 0.5 before BC does and therefore also ends 0.5 after BC since the circle is symmetrical.
B will be ur answer bc the weight of set of books
Answer:
0.0312
Step-by-step explanation:
Given :
Mean or average time, xbar = 12.25
Standard deviation, s = 3
Sample size, n = 500
The test statistic :
(x - xbar) ÷ (s/sqrt(n))
(12 - 12.25) ÷ 3/sqrt(500)
-0.25 ÷ 0.1341640
Test statistic = - 1.863
The Pvalue :
P(Z < - 1.863) = 1 - P(Z ≤ 1.863)
P(Z < - 1.863) = 0.0312
Hence, the Pvalue = 0.0312
4/5 or 0.8 or 80%
hope you have an amazing day <3
Answer:
2880 m
Step-by-step explanation:
find the area under the graph. i have split it into 3 areas A, B and C
A (trapezium) = 1/2 x (150 + 160) x 15 = 2325
B (trapezium) = 1/2 x (15 + 6 ) x (160 - 110) = 525
C (triangle) = 1/2 x 10 x 6 = 30
total = 2325 + 525 + 30 = 2880
