Can someone please solve 3x^2+4x-7<13
1 answer:
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Answer:
- Marti is the winner
Step-by-step explanation:
<h3>Continuation of question:</h3>- <em>The race was over after 10 seconds. The winner of the race is defined by the person who is farthest from the start line. Whose car should be crowned the winner? Use mathematics to justify your answer.</em>
- <em>Table is attached </em>
<u>Greg</u>
- Speed = 13 ft/s
- Start point = 30.7 ft from start line after 2 seconds
<u>Distance from start line after 10 seconds:</u>
- 30.7 + 13*(10 - 2) = 30.7 + 13*8 = 30.7 + 104 = 134.7 ft
<u>Marti</u>
- Speed = 16.5 ft/s
- Start point = 2 ft from start line
<u>Distance from start line after 10 seconds:</u>
- 2 + 10*16.5 = 2 + 165 = 167 ft
Comparing distances from the start line, 134.7 ft vs 167 ft, Marti is farthest from the start line and he is the winner.
Answer:
a) 59.58%
b) 90.90%
c) 0%
Step-by-step explanation:
Let p be the probability a sample is mutated. Then q= 1-p is the probability the sample IS NOT mutated.
So <em>p=0.03 (3%) and q=0.97 (97%). </em>
The experiment of finding a mutated sample out of 17 clearly has a binomial distribution, where the probability of finding k mutated samples out of 17 is given by
a)
<em>We want P(17;0)</em>
b)
<em>We want P(17;0)+P(17;1) </em>
c)
<em>We want P(17;9)+P(17;10)+...+P(17;17) </em>
Computing this number, we get
This figure is zero if we round to 2 decimals