Use the image below to answer the following question. What relationship do the ratios of sin x° and cos y° share? A. the ratios are opposites (-5/13 and 5/13) B. the ratios are both identical (5/13 and 5/13) C. the ratios are reciprocals (5/13 and 13/5) D. the ratios are both negative (-13/5 and -13/5)

B. the ratios are both identical (5/13 and 5/13)

Step-by-step explanation:

As per definition above, when applied to the given triangle, we have:

So the options:

A. the ratios are opposites (-5/13 and 5/13)

B. the ratios are both identical (5/13 and 5/13)

C. the ratios are reciprocals (5/13 and 13/5)

D. the ratios are both negative (-13/5 and -13/5)

15.5

step-by-step explanation:

5

∑

n = 1

substitute n = 1, 2, 3, 4, 5 and sum the terms

= + + + 2² + 2³

= 0.5 + 1 + 2 + 4 + 8

= 15.5