A ball is thrown into the air with an initial velocity of 80 ft/sec. The height of the ball after t seconds in the air is given by h(t) = -16t^2 + 80t + 96. How long will it take for the ball land on the ground? 8 seconds
1 second
6 seconds
12 seconds

Math Review Questions Please Help

h(t) = -16t^2 + 96t You want h(t) = 80 feet 80 = -16t^2 + 96t16t^2 - 96t + 80 = 0t2 - 6t + 5 = 0              [Factored out 16] Solve for t by factoring. There are two answers because the ball passes though 80 feet twice, once on the way up and again on the way back down. So, I’ll say 1 second

Step-by-step explanation:

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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