In ∆PQR, ∠Q ≅∠R. If PQ = 10x – 14,
PR = 2x + 50, and RQ = 4x – 30, what is the length of ?

RQ = 2cm (whatever units)

Step-by-step explanation:

∠Q = ∠R (this means that the triangle is isosceles because there are two angles that are the same)

Since these angles are the same, the sides that are opposite these angles must be the same as well.

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

b.-4 units

all you   do is count how many times you move