Answer: 14.7
Step-by-step explanation:
Data : 12,18
Total Number of Values, N = 2
Step 1 : Find 1 / N
1 / N = 1 / 2 = 0.5
Step 2 : Find mean
GM = ( 12 * 18 )^ 0.5
= 14.7
Answer:
Area = 45 sq ft
Step-by-step explanation:
Scale conversion:
2 inches = 6 feet
5 inches = 15 feet
Area = 1/2 base times height
Area - 1/2 x 6 x 15
Area = 45 ft squared
The interior angle of a regular octagon is 135 degrees.
<h3>What is an octagon?</h3>
An octagon is a polygon that has 8 sides. Therefore, a regular octagon is a octagon with all it sides and angles equal to each other.
Therefore, the sum of angles in an octagon is each interior angle multiply by the number of sides.
Therefore,
n = number of sides = 8
Hence,
interior angle = (n - 2)180 / n
interior angle = (8 - 2)180 / 8
interior angle = 6 × 180 / 8
interior angle = 1080 / 8 = 135°
learn more on octagons here: brainly.com/question/3828395
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Answer:
Last option
Step-by-step explanation:
Step-by-step explanation:
x² - 2 = 2^(2/3) + 2^(-2/3)
x² = 2^(2/3) + 2 + 2^(-2/3)
x² = (2^(1/3))² + 2 × 2^(1/3) × 2^(-1/3) +
(2^(-1/3))² (It is in the form of a²+2ab+b²)
x² = (2^(1/3) + 2^(-1/3))²
x = 2^(1/3) + 2^(-1/3)
