About po sa quadratic inequality
1.) 3. One side of a square is to be increased by 5 meters to form a rectangle with an area that is greater than 36 square meters. Find the length of the side of the square?
2.) A ball is thrown upwards and its height in feet above the ground is given by h=40t-〖16t〗^2. At what time is the height of the ball above 20 feet?
3.)4. One leg of a right triangle is 7 cm longer than the other leg. How long should the shorter leg be so that the hypotenuse is at least 17 cm?
1.) 3. One side of a square is to be increased by 5 meters to form a rectangle with an area that is greater than 36 square meters. Find the length of the side of the square?
2.) A ball is thrown upwards and its height in feet above the ground is given by h=40t-〖16t〗^2. At what time is the height of the ball above 20 feet?
3.)4. One leg of a right triangle is 7 cm longer than the other leg. How long should the shorter leg be so that the hypotenuse is at least 17 cm?
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Answer:
1.Since each side of a square is the same, it can simply be the length of one side squared. If a square has one side of 4 inches, the area would be 4 inches times 4 inches, or 16 square inches. (Square inches can also be written in2.) Be sure to use the same units for all measurements
2.A ball is thrown vertically upward. After t seconds, it's height h (in feet) is given by the function h(t)=40t-16t^2.
3.a right triangle is 7cm shorter than the other leg