Answer: 18600 feet
Step-by-step explanation:
f(t)=33600-1500t
f(t)=33600-1500(10)
f(t)=33600-15000
f(t)=18600
Answer:
Step-by-step explanation:
Let x be the random variable representing the times a fire department takes to arrive at the scene of an emergency. Since the population mean and population standard deviation are known, we would apply the formula,
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = standard deviation
From the information given,
µ = 6 minutes
σ = 1 minute
the probability that fire department arrives at the scene in case of an emergency between 4 minutes and 8 minutes is expressed as
P(4 ≤ x ≤ 8)
For x = 4,
z = (4 - 6)/1 = - 2
Looking at the normal distribution table, the probability corresponding to the z score is 0.023
For x = 8
z = (8 - 6)/1 = 2
Looking at the normal distribution table, the probability corresponding to the z score is 0.98
Therefore,
P(4 ≤ x ≤ 8) = 0.98 - 0.23 = 0.75
The percent of emergencies that the fire department arrive at the scene in between 4 minutes and 8 minutes is
0.75 × 100 = 75%
T_T T-T XD XP ---------------------00000__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Answer:
2. B
3.B
4.C
6A. 6
6B. 12
6C. 19.6
6D. 18.75
6E. I cant see
6F. I cant see
Step-by-step explanation:
2. 1/4*40=10
3. type the choice into the calculator
4. 2/5 of 30 or 2/5*30=12
6. A-F type into the calculator
75 бутеров!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
