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What is the geometric mean of 4 and 1 ninth?
Their geometric mean is:sqrt(42*(1/9)2)=sqrt(16*(1/81))=sqrt(16/81)=4/9-------------------The geometric mean of a set of n terms is equal to the nth root of the product of those n terms. The geometric mean of 4 and 1/9 is sqrt(4*(1/9)) = sqrt(4/9) = 2/3.
What is the distance between the points -1 -9 and 4 -2?
Points: (-1, -9) and (4, -2) Distance: (-1-4)2+(-9--2)2 = 74 and the square root of this is the distance which is about 8.602 to 3 decimal places
How many sides do 1 dodecagon 2 nonagons 1 quadrilateral and 4 triangles have altogether?
A dodecagon has 12 sides, a nonagon has 9, and quadrilateral has 4, and a triangle has 3. So in 1 dodecagon, 2 nonagons, 1 quadrilateral, and 4 triangles there are 1*12 + 2*9 + 1*4 + 4*3 = 12 + 18 + 4 + 12 = 46 sides altogether.
How many sides do 4 hexagons 1 nonagon and 8 pentagons have altogether?
The real answer is 29 . First, find the number of sides for each group of shapes. 1 nonagon: 1 × 9 = 9 4 pentagons: 4 × 5 = 20 Now add to find the total number of sides: 9 + 20 = 29 They have 29 sides in all.
If a triangle has the height of 4 in and an area of 18 in what is the length of the base?
Answer: 9 in Area is 1/2 base x height So 18 = 1/2 b x 4 That means the base is 36/4 or 9
