Answer:
81
Step-by-step explanation:
u multiply 9 x 9 not 9x2
Answer:
Step-by-step explanation:
We must develop three equations in three unknowns.
I will use these three:
Answer:
This question is incomplete
Answer:
y=29
Step-by-step explanation:
Replace x with 7:
y=8+3(7)
Multiply 7 and 3:
y=8+21
Add together:
y=29
Answer:
<h3>
33°</h3>
Step-by-step explanation:
Sum of measures of angles in any triangle is 180°
The maesure of right angle is 90°
So: m∠EFD = 180° - 90° - 57° = 33°