Answer: 4
<u>Step-by-step explanation:</u>
Inversely proportional means xy = k, where k is the constant of proportionality
First, find k when x = 2 and y = 400 ----> 2(400) = k --> 800 = k
Then, find y when x = 200 (knowing that k = 800)
200y = 800
y = 4
Answer:

Step-by-step explanation:
6 = −3[2] + b
−6

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Answer:
radius is 8cm
Step-by-step explanation: radius is half of diameter so 16/2= 8