Solve
-A Ball Is Thrown Upward with an Initial Velocity $h = - 4.9 t ^ { 2 } + 35 t + 100$

question 29

Multiple Choice

Solve.
-A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 70 meters high. The height of the ball is given by the quadratic equation $h = - 4.9 t ^ { 2 } + 35 t + 100$ where $h$ is in meters and $t$ is the time in seconds since the ball was thrown. Find the time that the ball will be 30 meters from the ground. Round your answer to the nearest tenth of a second.

• A) \(9.4\) seconds
• B) \(9.3\) seconds
• C) \(8.8\) seconds
• D) \(8.9\) seconds

---

Definitions:

Pattern Formation

The biological process by which cells in an organism acquire different identities, leading to the emergence of patterns such as stripes or spots during development.

Maternal Effect Gene

A gene whose expression in a mother affects the phenotype of her offspring, independent of the offspring's genotype.

Post-Translational Modification

The chemical modification of proteins after they have been synthesized, altering their function and activity within the cell.

DNA Binding Sites

Specific sequences in the DNA to which proteins such as transcription factors can bind, influencing the regulation of genes.