Which choice is equivalent to the expression below? ✓-27
A. -3✓3
B. 3✓3
C. 3i✓3
D. -✓27
E.-3✓3i

Solve the system. -a+4b+2c=-8 3a+b-4c=9 b=-1 a.(0,11) ,-1,2) c.(1,1,-2) d.(2,-1,-1)

Which expression shows the sum of the polynomials with like terms grouped together

5. which description does not guarantee that a quadrilateral is a squar ajo is a parallelogram with perpendicular diagonals 0% has all sides congruent and all angles congruent o has all right angles and has all sides congruent 10% is both a rectangle and a rhombus 30%