Amy is using a drawing program to complete a construction with which she is almost finished. which construction is she completing? a. an equilateral triangle inscribed in a circle b. a square inscribed in a circle c. a regular pentagon inscribed in a circle d. a regular hexagon inscribed in a circle

From this point, Amy could construct either an equilateral triangle or a regular hexagon. The triangle takes fewer steps to complete.

If Amy designates the (top and bottom) points of intersection of the circles as D and E, then her inscribed equilateral triangle would be ∆BDE. The appropriate choice is ...

... a. An equilateral triangle inscribed in a circle.

If Amy continues by drawing diameters DAF and EAG, then she can inscribe regular hexagon BGDCEF in circle A.

false

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the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct