Look at the picture as I can’t type the whole thing
1 answer:
Answer:
23.1 hours
Step-by-step explanation:
the mean is calculated as
mean = ∑ fx ÷ ∑ f
where x is the midpoint of the time intervals
0 < h ≤ 10 ⇒ x = 5
10 < h ≤ 20 ⇒ x = 15
20 < h ≤ 30 ⇒ x = 25
30 < h ≤ 40 ⇒ x = 35
then
∑ fx = (5 × 5) + (15 × 15) + (50 × 25) + (10 × 35)
= 25 + 225 + 1250 + 350
= 1850
∑ f = 5 + 15 + 50 + 10 = 80
then
mean = 1850 ÷ 80 ≈ 23.1 hours (to 1 dp )
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Answer:
10
Step-by-step explanation:
diameter is half of radius
Answer:
5years
Step-by-step explanation:
Interest=Principal*Rate*Time/100 which is
I=P*R*T/100
- 1500=6000*5*T/100
- 1500=30000/100*T
- 1500=300T
- 1500/300=T
- 5=T
Therefore T which is Time=5 years.
HOPE THIS HELPS
Answer:
The coordinates of point c: (7,5)
The coordinates of point D:(8,1)
Answer:
Here is your answer
Step-by-step explanation:
B) 2x + 5 = 7
vertical line
C) 2x - y = 6
oblique line
D) 3y + 9 = 0
horizontal line
