Because of the rainy season, the depth in a pond increases 3% each week. Before the rainy season started, the pond was 10 feet deep. What is the function that best represents the depth of the pond each week and how deep is the pond after 8 weeks? Round your answer to the nearest foot

d = 10 - 0.03x

The depth of the pond after 8 weeks = 9.76 feet

Step-by-step explanation:

Let x = Number of weeks

Constant rate of decrease in depth = 3% = 0.03

Initial depth = 10 feet

Depth after x weeks: d = 10 - 0.03x

Hence, the function that best represents the depth of the pond each week :

d = 10 - 0.03x

Put x = 8 in this function

d= 10 -0.03 (8)

=10-0.24

=9.76 feet

Hence, the depth of the pond after 8 weeks = 9.76 feet

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.