Fire works are fired from the roof of a 100- foot building and travel 84 feet per second. The equation h=-16t^2+84t+100 models the height (h) of the fireworks at any given time (t) seconds. How high did the fireworks get?

Step-by-step explanation:

Using RQ^2 = (RS)(RP) <--- That's the length of a secant and chord

to find RQ (You already know the length of RS and RP, because they are labelled,

Then using pythagoras theorem, find PQ

PR² = PQ² + QR²

26² = PQ² + 364

PQ² = 312

PQ = 2sqrt(78)

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.