<span>By by pythagorean theorem
12 (squared) + r (</span>squared) = (8+r) squared<span>
so 144 + r ( </span>squared) = 64 + r (squared)<span> +16r
so solving for r:
144 -64 = r </span>squared –r squared<span> + 16r
80 = 16r
so r = 80/16= 5
the second is the same
21 </span>squared + r squared = (9 + r ) squared<span>
441 + r </span>squared = 81 + r squared<span> + 18r
441 – 81 = r </span>squared – r <span>squared</span><span> + 18r
r = 360/18 = 20</span>
Answer:
Step-by-step explanation:
<u>Given the equation:</u>
Comparing it with 
, where S is the sum and P is the product.
So,
Sum = S = 0
Product = P = -16
Hope this helped!
<h2>~AnonymousHelper1807</h2>
Answer:
Explanation:
hope it will helps please heart my answer!
Answer:
What I usually do is find out the actual answer then round it. Make sure to write down that maybe you used mental math or a process of steps you have learned. Hope this was a bit helpful.
