The mistake is that -7^2 is 49, not -49
Answer:
3t+11
Step-by-step explanation:
A pentagon has 5 sides
Perimeter is the total measurement around an object=20t+7
we have not been given the 5th side measurement so lets make it x
6t +2t+4t-5+5t+1+x=20t+7
put the liketerm together i e
6t+2t+4t+5t-20t+x=7+5-1
17t-20t+x=11
-3t+x=11
x=11+3t.
So the measurements of the fifth side is 11+3t same as 3t+11
Let x be a random variable representing the thorax length of a male fruit fly, then
a.) P(x < 0.6) = P(z < (0.6 - 0.8)/0.078) = P(z < -2.564) = 1 - P(z < 2.564) = 1 - 0.99483 = 0.00517 = 0.517%
b.) P(x > 0.9) = 1 - P(z < (0.9 - 0.8)/0.078) = 1 - P(z < 1.282) = 1 - 0.90009 = 0.09991 = 9.991%
c.) P(0.6 < x < 0.9) = 100% - 0.517% - 9.991% = 89.492%
