Ineed with 23-25, you can only explain one, i think i might be able to do the rest.

From the given figure, we can see the AB and CD are perpendicular to each other. Let the point of intersection of AB and CD be O as shown in the attached image.

Join AC and BC

Consider the triangle COA,

By Pythagoras theorem, which states

(Equation 1)

CO=OD= 3 in (If two congruent circles intersect at two points, then their centers lie on the perpendicular bisector of the common chord)

AO=OB=4 in

From equation 1, we get

in.

1. credits

2. dual - aspect

hope i : )

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify