Answer:
6.7% of children who finished the race in under 45 seconds.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 75 seconds
Standard Deviation, σ = 20 seconds
We are given that the distribution of time of completion is a bell shaped distribution that is a normal distribution.
Formula:
P(finished the race in under 45 seconds.)
P(x < 45)
Calculation the value from standard normal z table, we have,
6.7% of children who finished the race in under 45 seconds.
Answer:
The Arch is 630 ft tall
Step-by-step explanation:
Hello, your answer would be (-5, 5)
Answer:
y = -4x + 1
Step-by-step explanation:
you said, slope of -4, therefore it's -4x and you also said y intercept of 1, therefore it's a positive 1 : +1
combine them together: y = -4x +1
If you have any more questions, please let me know and I am glad to answer any question that are related to math (algebra 1 and geometry). Let me know if you have any more questions and don't forget to click that friend button!
Answer:
it is 20x - 11 = 5x + 11
Step-by-step explanation:
hope this help :)
