28. Given the diagram below, what is the value of cos 0?
C.
d.

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

What ia the sum if the first 7 terms of the geometric series

A3cm×3cm\greend{3\,\text{cm} \times 3\,\text{cm}} 3cm×3cm start color greend, 3, space, c, m, times, 3, space, c, m, end color greend rectangle sits inside a circle with radius of 4cm\blued{4\,\text{cm}} 4cm start color blued, 4, space, c, m, end color blued . what is the area of the shaded region? round your final answer to the nearest hundredth.