The answer is x = -1.3333
Volume: h • pi r^2
Volume: (7.5) • pi (2)^2
Volume: 94.247796
Just round to your teacher’s liking
5x+15(greater than or equal to symbol) $210
210-15=195
195 divided by 5=39
So it will take her atleast 39 weeks to save up for the game
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%