4 years ago

Solve the following equation. 66 = 6n

Mathematics

1 answer:

Sauron [17]4 years ago

3 0

Answer: N is 11. 6x11=66

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Answer:

84 degrees

Step-by-step explanation:

Applying the Cosine Rule (Choice 2 is the correct one) :-

12^2 = 11^2 + 6^2 - 2*11*6 cos Y

144 = 121 + 36 - 132 cos Y

cos Y = (121 + 36 - 144) / 132

cos Y = 0.09848

Y = 84.3 degrees

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3 years ago

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The first term of a geometric sequence is 3. The sum of the first two terms is 15 and the sum of the first 3 terms is 63. Deter

pav-90 [236]

63 is the common term. 3+12+48=63

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3 years ago

Solve for q<br><br> - 3/4q = 12 <br><br> q = ___

Alex Ar [27]

$\text{We know: } \\ \boxed{\frac{\ -3\ }{\ 4\ }*q=12 } \\ \\ q=12: \frac{\ -3\ }{\ 4\ } \\ \\ q=12* \frac{\ 4\ }{\ -3\ } \\ \\ q= \frac{\ 48\ } {\ -3\ } \\ \\ q=-16 \\ ********** \\ \\ \text{Check:}\\ \\ \boxed{ \frac{-3}{4}*-16=12 } \\ \\ \frac{48}{4} =12 \ TRUE$