Lines a and b are parallel. What is the measure of ∠3 if ∠6 measures 84°?
2 answers:
You might be interested in
Answer:
10
Step-by-step explanation:
let the number be n then half the number is n , so
n + 69 = 74 ( subtract 69 from both sides )
n = 5 ( multiply both sides by 2 to clear the fraction )
n = 10
Thus the number is 10
Answer:
-21
Step-by-step explanation:
I assume this is a 2 by 2 matrix.
determinant = -5 * 4 - 1 * 1 = -20 - 1 = -21