Answer:
49 sq ft
Step-by-step explanation:
multiply 7 by 7
Answer:
<h2>(2a+3b)² - (16c)² = (2a + 3b - 16c)×(2a + 3b + 16c)</h2>
Step-by-step explanation:
(2a+3b)² - (16c)² = [(2a+3b) - 16c]×[(2a+3b) + 16c]
= [2a + 3b - 16c]×[2a + 3b + 16c]
Answer:
b=23
Step-by-step explanation:
(b+43)+(3b+45)=180
2 adjacent angles will always equal 180
Then just simplify