Answer:
The answers are given below.
Step-by-step explanation:
8) A) acute               9) C) acute                  10) D) right                 11) B) acute  
12) A) straight          13) A) acute               14) D) right                     15) C) ∠L
16) B) ∠HIG               17) B) ∠DEC              18) B) ∠K                         19) C) ∠G
20) C) ∠KLJ
We know that ,
1. when 0° < θ < 90°, θ is acute.
2. when  θ = 90°  θ  is right
3. when 90° < θ < 180°, θ is obtuse
4. when  θ = 180°  θ  is straight
 
        
             
        
        
        
Amplitude is 4
I don’t know the cos function, sorry :(
        
             
        
        
        
The answer is C. Because it takes 5730 years for half of a sample of carbon-14 atoms to decay. It says that 50% of the carbon atoms have decayed so that means that 5730 years have elapsed for that fossil.
I hope that helps.
        
             
        
        
        
Answer: welp im in 7th grade so uh... i may be underqualified... but here's my attempt! if it's wrong just lmk and I'll delete it
In the owl world egg laying usually happens about one month after courtship begins. The incubation period for owl eggs is about 30 days, so taking 2 months to increase population is about normal.
Step-by-step explanation: sorry if it's wrong