Answer:
b
Step-by-step explanation:
25*20*4=2000
40*10=400
2000-400=1600
Answer:
35
Step-by-step explanation:
7b
7(5)
35
<h3>
Answer:</h3><h3>cos(-t) = -4/9</h3><h3>sec(-t) = -9/4</h3>
Explanation:
Since cosine is an even function, we can say cos(-t) = cos(t) for all values of t. So this explains why cos(-t) = cos(t) = -4/9. No change happens.
To find the secant value, we apply the reciprocal. This is because sec = 1/cos. So that's how -4/9 flips to -9/4.
Answer: (4, 3)
Step-by-step explanation:
Answer:
2x2+6xy
Step-by-step explanation:
- 2x2+3xy+3xy
- Combine like terms, 2x2+6xy