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e   Matt jumped from a bungee tower, which was 729 feet high. Find the time taken by him to reach the ground, if the equation that models his height is h = - 16t2 + 729, where t is the time in seconds.
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e   Tommy throws a pencil from a building with an initial downward velocity of - 10 feet per second. How long will the pencil take to reach the ground, if the height of the pencil from the ground is modeled by the equation h = - 16t2 - 10t + 125, where t is the time in seconds?   e View Solution
e   Find the solutions of the quadratic equation p2 + 11p + 30 = 0.
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e   Brad throws a pen from the top of a 124 feet tall building with an initial downward velocity of - 30 feet per second. How long will the pen take to reach the ground?
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e   Write the equation - d2 + 4 = 8d - 5d2 in the standard form.   e View Solution
e   Find the values of 6j, in the equation 14 j 2 - 1 = 12 j + 1.
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e   Compare 1516n2 - 6 = 14n - 1 with the standard form and find the value of b2 - 4ac.   e View Solution
e   Which of the following quadratic equations has the solutions [7±(49+24)]6?
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ff  What are the values of a, b and c in the quadratic formula used to solve the equation 7e2 - 5 + e = - e2 + 6e?  ff View Solution
ff  What are the values of a, b and c in the equation 4f 2 - 2f + 48 = 0, which is in the standard form?  ff View Solution
ff  Write the equation 14g2 - 3 = - 1920g, in the standard form.
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ff  Find the value of b2 - 4ac, for the equation -6z2 - 19z - 10 = 0.
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ff  Rewrite the equation 3h22 + 5 = h2 + (11h10), into the standard form and identify the values of a, b and c.  ff View Solution
ff  Find the x-intercepts of the graph of y = - x2 - 2x + 35.  ff View Solution
ff  Nina dives into a pool from the diving board, which was 4 feet high from the water. She dives with an initial downward velocity of - 12 feet per second. If the equation to model the height of the dive is h = - 16t2 + (- 12)t + 4, then find the time in seconds taken by Nina to reach the water level.  ff View Solution
ff  Justin stands on a bridge 73.5 feet above the ground holding an apple. He throws it with an initial downward velocity of - 25 feet per second. How long will it take for the apple to reach the ground, if the vertical motion is given by the equation h = - 16t2 + vt + s.
(s = 73.5 feet)
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ff  Find the x-intercepts of the graph of y = x2 + 7x - 44.  ff View Solution
ff  A stone is dropped from a height of 25 feet above the ground. The height of the stone is modeled by the equation h = - 16t2 + 25, where t is the time in seconds. Find the time taken for the stone to hit the ground.  ff View Solution
ff  Tim runs a textile company that manufactures T-shirts. The profit made by the company is modeled by the function p = s2 + 6s - 1755, where s is the number of T-shirts sold. Find the least number of T-shirts to be sold so that Tim does not end up in a loss.
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ff  Josh drops a ball from a height of 100 feet above the ground. Calculate the time taken by the ball to hit the ground, if its height is given by the equation h = - 16t2 + 100, where t is the time in seconds.
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ff  What are the values of a, b and c in the equation 4f 2 - 8f + 36 = 0, which is in the standard form?  ff View Solution
ff  Write the equation which is used to model the height of an object that is thrown down with an initial velocity of - 9 feet per second from a height of 28 feet.
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ff  Rewrite the equation 4h23 + 7 = h2 + (7h6), into the standard form and identify the values of a, b and c.  ff View Solution
ff  What are the values of a, b and c in the equation 5f 2 - 3f + 43 = 0, which is in the standard form?  ff View Solution
ff  Write the equation 13g2 - 3 = - 1112g, in the standard form.
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ff  Write the equation - d2 + 3 = 8d - 8d2 in the standard form.  ff View Solution
ff  Find the value of b2 - 4ac, for the equation -20b2 - 35b - 15 = 0.
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ff  Find the solutions of the quadratic equation p2 + 6p + 9 = 0.
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ff  Jake throws a pen from the top of a 124 feet tall building with an initial downward velocity of - 30 feet per second. How long will the pen take to reach the ground?
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ff  Which of the following are the solutions of the quadratic equation ax2 + bx + c = 0, when a ≠ 0 and b2 - 4ac ≥ 0?  ff View Solution
ff  What are the values of a, b and c in the quadratic formula used to solve the equation 3e2 - 3 + e = - e2 + 4e?  ff View Solution
ff  Find the values of 5j, in the equation 16 j 2 - 2 = 13 j + 2.
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ff  Solve the equation 13k2 - 3k + 6 = 0 by using the quadratic formula.  ff View Solution
ff  Compare 1415n2 - 4 = 15n - 2 with the standard form and find the value of b2 - 4ac.  ff View Solution
ff  Which of the following quadratic equations has the solutions [9±(81+48)]8?
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ff  Find the x-intercepts of the graph of y = - x2 - 3x + 28.  ff View Solution
ff  Hanna dives into a pool from the diving board, which was 16 feet high from the water. She dives with an initial downward velocity of - 24 feet per second. If the equation to model the height of the dive is h = - 16t2 + (- 24)t + 16, then find the time in seconds taken by Hanna to reach the water level.  ff View Solution
ff  John stands on a bridge 73.5 feet above the ground holding an apple. He throws it with an initial downward velocity of - 25 feet per second. How long will it take for the apple to reach the ground, if the vertical motion is given by the equation h = - 16t2 + vt + s.
(s = 73.5 feet)
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ff  Find the x-intercepts of the graph of y = x2 + 2x - 15.  ff View Solution
ff  A stone is dropped from a height of 9 feet above the ground. The height of the stone is modeled by the equation h = - 16t2 + 9, where t is the time in seconds. Find the time taken for the stone to hit the ground.  ff View Solution
ff  Tim runs a textile company that manufactures T-shirts. The profit made by the company is modeled by the function p = s2 + 3s - 990, where s is the number of T-shirts sold. Find the least number of T-shirts to be sold so that Tim does not end up in a loss.
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ff  A tennis player hits a ball when it is 8 feet off the ground. The ball is hit with an upward velocity of 8 feet per second. After the ball is hit, its height h(in feet) is modeled by h = - 16t2 + 8t + 8, where t is the time in seconds. How long will it take the ball to reach the ground?
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ff  George drops a ball from a height of 49 feet above the ground. Calculate the time taken by the ball to hit the ground, if its height is given by the equation h = - 16t2 + 49, where t is the time in seconds.
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ff  What are the values of a, b and c in the equation 2f 2 - 9f + 11 = 0, which is in the standard form?  ff View Solution
ff  Write the equation which is used to model the height of an object that is thrown down with an initial velocity of - 3 feet per second from a height of 19 feet.
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ff  Solve the equation 13k2 - 3k + 6 = 0 by using the quadratic formula.
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