Answer:
true
Step-by-step explanation:
sinA² + cosA²=1
⇔(1/2)² + cosA²=1
⇔cosA=±(√3/2)
Answer:
-15 and 1
Step-by-step explanation:
-15x1=-15
-15+1= -14
Number 5) A hill that rises 2 feet for every 10 feet of run. Because a longer run is not as steep as a short run.
Number 6) They all are parallel, they do not intersect.
I believe the answer is A
Answer: 10+8i
Step-by-step explanation:
To subtract the expressions, you would first need to distribute the -1.
(8+7i)-(-2-i) [distribute -1]
8+7i+2+i [combine like terms]
10+8i
Now, we have the subtracted answer 10+8i.