Answer:
A. 3c
Step-by-step explanation:
c + c + c = c × 3
c × 3 = 3c
Answer:
0.7477
Step-by-step explanation:
The mean(X) = 25,000 hrs
Standard deviation (σ) = 1500 hrs
The probability that the light bulb lasts more than 24,000hrs is Pr (X˃24,000)
Using Z-scores, Z= (X- μ)/σ
For X = 24,000
Z = (24,000 – 25,000)/1500
Z = -1000/1500
Z = -0.667
From the normal distribution table, Z= 0.667 = 0.2477
Φ(Z) = 0.2477
Recall that if Z is negative,
Pr (X˃a) = 0.5 + Φ(Z)
Pr (X˃24,000) = 0.5 + 0.2477
= 0.7477
2/5=0.4 then 243 the the power of 0.4 is 9, answer is c
Since Natalie and her friends wanted to rend four lanes, we need to calculate this at REGULAR cost.
4*9.75= 39
Now, since 10 people want to rent shoes, and 4 are members, we subtract.
10-4=6
6 nonmembers
4 members
6 times the amount of shoe rental for nonmembers
6*3.95= 23.70
4 times the number of members shoe rental
4*2.95=11.80
Now add the quantities
39+ 11.80 + 23.70 = 50.80 + 23.70 =
74. 50
Now, our answer is 74.50
Final answer: $74.50
*DRINKS COKE FOR THE ACCOMPLISHMENT!*
Read more on Brainly.com - brainly.com/question/858196#readmore