Answer:
8
Step-by-step explanation:
100 = x^2 + AC^2
17^2 = AC^2 + (21 - x)^2
289 = AC^2 + 21^2 + x^2 - 2*21*x
289 =<u> AC^2</u> + 441 +<u> x^2</u> - 42x
from 1st equation AC^2 + x^2 = 100
289 = 441 + 100 - 42x
289 = 541 - 42x
42x = 541 - 289 = 252
x = 252/42 = 6
so AC^2 = 100 - 6^2 = 100 - 36 = 64
AC = 8
Answer:
B
Step-by-step explanation:
The equation for B equals a negative answer
Answer:
1/2
Step-by-step explanation:
The expressions that shows relationship that are not equal.
<h3>What are inequalities?</h3>
Inequality are expression that are separated by an equal sign. The inequality signs are >, <, ≥, ≤, or ≠
If a two numbers are not equal, then one is either greater or less than the other. The relationship between values that are not equal is as shown;
<em>6 < 7 </em>
<em>23 > 15</em>
This are expressions that shows relationship that are not equal.
Learn more on inequality here: brainly.com/question/24372553
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