Answer:640
Step-by-step explanation:
Since 15 out of every 75 fish are more than 30 cm long, the probability of finding a fish more than 30 cm is P(x > 30) = 15/75 = 1/5.
The probability of finding a fish 30 cm or less is P(x ≤ 30) = 1 - P(x > 30)
= 1 - 1/5
= (5 - 1)/5
= 4/5
Since we have 800 fish and the probability of finding a fish 30 cm or less is P(x ≤ 30) = 4/5, then the number of fish in the population that are 30 cm or less in length are 800 × P(x ≤ 30) = 800 × 4/5
= 160 × 4
= 640
So, 640 fish in the population are 30 cm or less in length
Answer:
wait what? Lol thanks for the points luv <3
Step-by-step explanation:
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Explanation:
The average value of the velocity function is the height of the rectangle that has the same area as the velocity curve. That height is still measured in m/s.
If you want to find distance traveled (in m), then you must multiply the height in m/s by the width in s.
Answer:
B 8+8x = 24
Step-by-step explanation:
9+6x+2x-1 = 24
Combine like terms
6x+2x +9-1 = 24
8x +8 = 24
Rearranging
8 + 8x =24
