Answer:
154
Step-by-step explanation:
11 * 14
= 154
Answer:
see below
Step-by-step explanation:
4a) x / 12 = 5
multiply both sides of equality by 12
x = 60
4b) Dan charges $12 per hour, this doesn't change so it's the constant of proportionality.
4c) S = 12h
If you substitute the h with the number of hours worked multiply with the constant of proportionality 12 you'll get the amount charge S.
5) Equation for a slope is (y₂ - y₁) / (x₂ - x₁):
(2 - 0) / (6 - 1)
= 2/5
Answer:
H Maggie is write answers
Answer:
approx 23.35 degrees
Step-by-step explanation:
Work backwards: 48" is 48/60 minute, or 0.8 minute. Then we have
23 degrees 20 minutes 0.8 minute, or
23 degrees 20.8 minute, or
23 degrees 20.8/60 degree, or
23.347 degrees, or
approx 23.35 degrees
Answer:
Mean = 339 hours
Standard deviation = 54 hours
Step-by-step explanation:
We are given that approximately 2.5% of the bulbs have lives exceeding 445 hours
So,P(x>445) = 0.025
P(x<445) =1- 0.025 =0.975
z value for 0.975 is 1.96
Formula : 
So, 
--A
Now we are given that approximately 16% have lives exceeding 393 hours,
So,P(x>393) = 0.16
P(x<393) =1- 0.16 =0.84
z value for 0.84 is 1
Formula :
So, 
---B
Solve A and B
Substitute the value of 
from B in A
Substitute the value in B
So, mean = 339 hours
Standard deviation = 54 hours
