B. 145inches ^2.
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Answer:
1st: 116°
2nd: 64°
Step-by-step explanation:
Supplementary angles add up to 180 degrees. We can make the first supplementary angle be represented by: 2x - 12 and the second supp. angle be represented by x.
Make both of these expressions add up to 180.
(2x - 12) + (x) = 180
Combine like terms.
3x - 12 = 180
Add 12 to both sides.
3x = 192
Divide both sides by 3.
x = 64
Substitute 64 for x into the first supp. angle's expression.
2(64) - 12 = 116
The first supp. angle is 116 degrees and the second is 64 degrees.
Answer:
The answer is option A.
<h3>35.</h3>
Step-by-step explanation:
To find the number of girls in the class we must first find the total parts
That's
2 + 7 = 9
In the ratio 7 correspond to girls so the number of girls in the class are
7/9 × 45
= 7 × 5
= 35
Hope this helps you
The answer to this question is 5.49