Marie started to construct triangles such that δpqr ≅ δstu. she first copied side pr to form su, as shown below. which are possible next steps? check all that apply. place the compass center on s and draw an arc that intersects su above and below. place the compass center on p and adjust the radius of the compass to the length of pq. place the compass center on q and draw an arc that intersects pq and qr. place the compass center on u and adjust the radius of the compass to the length of su. place the compass center on p and draw an arc that intersects pq and pr.

B). Place the compass center on P and adjust the radius of the compass to the length of PQ.

E). Place the compass center on P and draw an arc that intersects PQ and PR.

Step-by-step explanation:

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x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15