00 o = 2 1/2
— 00 o
2 — = 1 — = .25
2 2
00=2
o=1/2
2/2=1
.5/2=.25
Final answer = 1.25 or 1 1/4
Step-by-step explanation:
d = z - 9
d = 10 - 9 ----> substitute
d = 1
Contradictions usually mean they go against established rules. Squaring a negative number is one example if it is in math. But just think of anything that goes against what is known.
Your answer is A. You literally plug in the numbers for a and b to solve for the equation.