Answer:
her equation should be a² + 3² = 4²
Step-by-step explanation:
a² + 3² = 4²
a² + 9 = 16
a² = 7
a = 
a ≈ 2.6 inches
Vertical angles are equal
4x = 45 + 15
4x = 60
x = 60/4
x = 15
Answer:
1/4
Step-by-step explanation:
-1 - 3 = -4, 2 - 3 = -1, swap -4/-1 and because they're both negative their positive, you get 1/4
The fraction 6/11 is equivalent to the fraction of 18/33. They both have the same value. Simply multiply both the numerator and denominator by 3 to the fraction of 6/11 to get the new equivalent one.