Answer:
x = 5
Step-by-step explanation:
a² + b² = c²
x² + 12² = 13²
x² + 144 = 169
x² = 169 - 144
x² = 25

x = 5
The correct answer should 1.1333
Answer:


Step-by-step explanation:
2x² +21x-61 = (x+7)²
expand
2x² + 21x - 61 = x² + 14x +49
move everything to one side
x² + 7x - 12 = 0
use quadratic formula

plug in the values

solve



wow the answer is not listed on option
Answer:
18°
Step-by-step explanation:
90-72= 18
The complement of 73 is the angle that when added to 73 forms a right angle which is 90° xd