Answer:
Answer A
Step-by-step explanation:
because formula of a trapezium = (hxbxl) so
(6x8x19) = 912units^3
Answer:correct
Step-by-step explanation: >
Answer:
42. 2
6.496
Step-by-step explanation:
Given the data :
21, 12, 3, 9, 11
Variance :
S² = Σ(x - m)² ÷ (n - 1)
n = sample size = 5
m = sample mean = Σx / n
m = (21 + 12 + 3 + 9 + 11) / 5
m = 11. 2
(21-11.2)² + (12 -11.2)² + (3 - 11.2)² + (9-11.2)²
+ (11-11.2)² / (5 - 1)
S² = 42.2
Standard deviation, s = sqrt(42.2) = 6.496
$3000- $1500= ?... ?- $500= your answer
Hope this helped if you need more help let me know and i will explain more