An Object 2 Cm High Is Placed 10 Cm in Front

question 22

Multiple Choice

An object 2 cm high is placed 10 cm in front of a mirror.What type of mirror and what radius of curvature is needed for an image that is upright and 4 cm tall?

• A)Concave,R = 20 cm
• B)Concave,R = 40 cm
• C)Convex,R = -10 cm
• D)Convex,R = -20 cm

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Definitions:

Simplify

The process of reducing an expression to its simplest form, making it easier to understand or solve.

\(8^x\cdot 8^{x-1}\)

An expression that can be simplified to \(8^{2x-1}\) using the properties of exponents.

\(10,000(1.07)^{4t}\)

An exponential growth equation, where \(10,000\) is the initial quantity and \(1.07\) is the growth factor applied every period \(t\), scaled by a factor of 4.

\(10,000(1.09)^{3t}\)

An exponential function, often used in finance to calculate compounded interest or investment growth over time.