Answer:
- 1
Step-by-step explanation:

= 
= - 1
Answer:
F=−4c 2 +7c+5
Step-by-step explanation:
Answer:
b = 26°
Step-by-step explanation:
a ; b = complementary =>
a + b = 90° } => b = 90° - 64° = 26°
a = 64°
Answer:
i think it is..
Step-by-step explanation:
Answer:
no solutions
Step-by-step explanation: