Solve the Problem $$\mathrm { s } = 144 + 128 \mathrm { t } - 16 \mathrm { t } ^ { 2 }$$

question 148

Multiple Choice

Solve the problem.
-A ball is thrown vertically upward from the top of a building 144 feet tall with an initial velocity of 128 feet per second. The distance s (in feet) of the ball from the ground after t seconds is $$\mathrm { s } = 144 + 128 \mathrm { t } - 16 \mathrm { t } ^ { 2 }$$ . After how
Many seconds does the ball strike the ground?

• A) 9 sec
• B) 145 sec
• C) 11 sec
• D) 8 sec

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Definitions:

Haploid

A cell or organism having a single set of chromosomes, characteristic of gametes such as sperm and egg cells in sexually reproducing organisms.

Nuclear Membrane

A double lipid bilayer that encloses the cell's nucleus, separating its contents from the cytoplasm and regulating the passage of materials in and out of the nucleus.

Mitosis

A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.

Contractile Ring

A band of protein fibers that forms in the middle of a cell during cytokinesis, leading to cell division.