Answer:
24 months
Step-by-step explanation:
Lifespan with z-score of -3 in the the set of normally distributed life spans of an appliance can be calculated using the equation:
where
- X is the lifespan we are looking for
- M is the mean life span of the appliance (48 months)
- s is the standard deviation of the distribution of the life spans (8 months)
We have 
that is
-24=X-48 and
X=24 months.
The life span of an appliance that has a z-score of -3 is 24 months.
Answer:
x = 15
Step-by-step explanation:
x + 5 = x/2 + 20 Move the 5 over by subtracting
x = x/2 + 15 multiply by 2 on both sides
2x = x + 15 Move the x over by subtracting
1x = 15
I hope this helped and please mark me as brainliest!
Answer:
B
Step-by-step explanation:
definitely b because 6 percent of 2000 is 120 and 120 x 2 is 240 so add that to the 2000 and theres your answer
Answer:
20 degrees
Step-by-step explanation:
A full angle is exactly 360 degrees, and if we were to cut it into 9, since 9 triangles (the two right traingles together) would be able to fit the nonagon, we would have first 40 degrees. Then the 40 degrees cut in half would be 20 degrees, since there are two right triangles present.
Answer:
True.
Step-by-step explanation:
37°45' + 142°15'
= (37 + 142)° + (45 + 15)'
= 179° + 60'
= 179° + 1°
= 180°
there being 60 minutes of arc in one degree of arc.
