If a Ball Is Thrown into the Air with a Velocity

question 72

Multiple Choice

If a ball is thrown into the air with a velocity of $58 ~~\mathrm{ft} / \mathrm{s}$ , its height (in feet) after t seconds is given by $H=58 t-18 t^{2}$ . Find the velocity when $t=9 .$

• A) \(-20\)
• B) \(-23\)
• C) \(-18\)
• D) \(-22\)
• E) \(-25\)

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Definitions:

Manufactures

Companies or individuals involved in the conversion of raw materials into finished goods, through the use of labor and machinery.

Office Furniture

Fixed assets consisting of desks, chairs, tables, cabinets, and other furnishings used in an office environment.

Variable Utilities Cost

Expenses for utilities that change in proportion to the level of production or activity of a business.

High-low Method

The high-low method is a straightforward way to estimate the variable and fixed components of a cost by using the highest and lowest activity levels and the corresponding total costs.