Answer ; -1/2
when expanded
5-8a-2+3a=13
5a=3-13
a=-5/10
a= -1/2
Answer:
When 2 angles are put together, they must have a total of 180 degrees.
Step-by-step explanation:
180-39=141
The measure of the missing angle is 141 degrees.
-51 /3 = -17
-17 + -15 + -19 = -51
3 numbers are -15, -17 and -19
Answer:
9.06
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
[1 -2]
[3 4]
We can obtain the determinant of the above matrix by doing the following:
Determinant =(1 × 4) – (3 × –2)
Determinant = 4 – – 6
Determinant = 4 + 6
Determinant = 10
Thus, the determinant of the above matrix is 10