A unit circle has its center at the origin and has a radius of one. It is modeled by the equation
x² + y² = 1
We are given with <span>(x,-1)</span> .
Solving for x
x² + (-1)² = 1
x = 0<span />
Answer:
Part A : 9.555 . 10^38
Part B : 7.4 . 10^-3
Step-by-step explanation:
<h3>Part A</h3>

<h3>Part B</h3>


A blood cell is too small. So the more reasonable measurement is 0.0074mm.
83`/100 is correct because the three would be going on forever so just change it to 83.