Answer: 31.3 square feet
Step-by-step explanation:
Assuming the given is: 5u^7 - 21u^7
Since both algebraic terms are identical (both are using u^7), we can subtract the coefficients directly, as in: 5 - 21 = -16
Therefore, 5u^7 - 21u^7 = -16u^7
Answer: Figure QRTS is congruent to figure Q'R'T'S'.
Step-by-step explanation:
A reflection is a rigid motion, and rigid motions preserve congruency.