Mathematics, 09.10.2019 07:20 ayoismeisalex
Aphysical fitness association is including the mile run in its secondary-school fitness test. the time for this event for boys in secondary school is known to possess a normal distribution with a mean of 460 seconds and a standard deviation of 60 seconds. the fitness association wants to recognize the boys whose times are among the top (or fastest) 10% with certificates of recognition. what time would the boys need to beat in order to earn a certificate of recognition from the fitness association?
a) 383.2 sec
b) 536.8 sec
c) 558.7 sec
d) 361.3 sec
Answers: 2
Mathematics, 21.06.2019 17:00, kathiewallentin1767
Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2
Answers: 3
Mathematics, 21.06.2019 19:20, axelsanchez7710
The suare root of 9x plus 7 plus the square rot of 2x equall to 7
Answers: 1
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