Math study page book
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!!!

Step-by-step explanation:

for that we use Pythagoras, as the distance is always the baseline (Hypotenuse) of a right-angled triangle created by the x and y coordinate differences between the 2 points.

15.

distance² = (8-3)² + (9-2)² = 5² + 7² = 25 + 49 = 74

distance = sqrt(74) = 8.602325267...

16.

we need to write down the point coordinates first :

(-4, 3)

(1, -3)

distance² = (1 - -4)² + (-3 - 3)² = 5² + (-6)² = 25 + 36 = 61

distance = sqrt(61) = 7.810249676...

can i see the following ?

step-by-step explanation:

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.