I believe the answer is (2,-2)
just hoped i helped mate
15.1
First add all the numbers together
11+18+12+20+19+14+12=106
Then divide by the number of terms, in this case 7
106/7=15.1428571
Rounded to the nearest tenth:
15.1
Answer:
They both equal
Step-by-step explanation:
Complementary angles add up to 90°
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Ratio
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7 : 3
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Find total parts :
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Total parts = 7 + 3 = 10
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Find 10 parts :
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10 parts = 90
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Find 1 part :
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1 part = 90 ÷ 10 = 9
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Find 7 parts :
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7 parts = 9 x 7 = 63
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Find 3 parts :
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3 parts = 9 x 3 = 27
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Answer: The ratio of the two angles are 63:27
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