Fireworks are fired from the roof of a 100-foot building. The equation h = -16t(2) + 84t + 100 models the height h (in feet) of the fireworks at any giver time, t. How high do the fireworks get?

step-by-step explanation:

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jml angle lkj & angle mj = lm

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629