Answer:
3x+75=180
3x=180-75
3x=105
x=105/3
x=35
Answer:
X = 35.7 Y=54.3
Step-by-step explanation:
Let the 2 angles be called X and Y were X is the smaller angle
we know that both angles are complementary therefore
X+Y=90
X = Y - 18.6 ( Given )
Y - 18.6 + Y = 90 ( substitution)
2Y = 90 + 18.6
Y = 108.6/2
Y=54.3
X= Y-18.6= 54.3-18.6 = 35.7
Check : X + Y = 35.7+54.3=90
3 1/2 divided by 2 1/4 = 1.55555556
1.55555556 Rounded is 1.55
17. 9
18. 12
19. 16
20. 56
21. 143
22. 14
23. 27
24. 7

<h2>
Explanation:</h2>
Here we have the following expression:

A Perfect Square Trinomial is given by the form:

So matching terms, we can conclude that:

So, substituting c into the expression:

It is a perfect square because:

<h2>Learn more:</h2>
Quadratic Equation in real life problems: brainly.com/question/10278062
#LearnWithBrainly