M is the midpoint of CT. CM = 2x + 8 and MT = 4x + 2, the length of CT.
1 answer:
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Answer:
(D)109
Step-by-step explanation:
Mean = 450 seconds
Standard deviation = 50
First, we determine the probability that the expected response time is between 400 seconds and 500 seconds, P(400<x<500)
Using the Z-Score,
From the Z-Score table
P(-1<x<1) = 0.68269
The probability that the expected response time is between 400 seconds and 500 seconds is 0.68269.
Since there are 160 Emergencies
Number whose expected time is between 400 seconds and 500 seconds
Answer:
D
Step-by-step explanation:
The area (A) of an equilateral triangle is calculated as
A = ← s is length of a side
Here s = 12, thus
A =
=
= 36 → D