Answer:
13.2''
Step-by-step explanation:
lets ? be x
x² + 15² = 20²
x² = 20² - 15²
x = √175
x = 13.2''
so missing length = 13.2''
Answer:
(0,5)
Step-by-step explanation:
5x + 2 must be equal to 17. Subtract to from both sides, then divide both sides by 5 and x = 3. 3y - 6 must equal 21. Add 6 to both sides, then divide both sides by 3, and y = 9.
One solution x = 1, y = 4
⇨ The numeric value of this expression = 12.
<h3>
</h3>
- To solve this expression, just <u>replace '</u><u>x</u><u>'</u> by the <em>indicated value</em>, being the number 3, and <em>perform</em> the <em>indicated </em>math <em>operations</em>.





- Therefore, we can conclude that, the correct value of this expression = 12.

<h3><em>Hope this helps! ❤️</em></h3>