When Sophia runs the 400 meter dash, her finishing times are normally distributed with a mean of 75 seconds and a standard devia
tion of 1.1 second. What probability of races will her finishing time be between 74.2 and 76.4 seconds?
1 answer:
i really dont know the answer im confuseddd
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Answer:
2.5
Step-by-step explanation:
when you 5x automatically cancels, and 7.5 / 3 is 2.5
- 7x=-63-11y-(1)
- 8x=93+11y--(2)
Adding both
Putting in second one
- 8(2)=93+11y
- 11y=16-93
- 11y=-77
- y=-7
Answer:
The first and third options are parallel.
Step-by-step explanation:
They both have a slope of 2.
Pls mark brainliest. Thanks!
Answer:
False
sin (y) / cos (y) = cos (y)
cos (y) could be any value from -1 to 1.
Step-by-step explanation:
Answer:
sum of interior angle of a triangle is 180 degree
so,
3x +7 + 2x+7 +3x+6 = 180
8x + 20 = 180
8x = 180 - 20
8x = 160
x = 160/ 8
x = 20
May it will help you
