The answer is 20, I hope this helps!
Answer: Jane incorrectly evaluated (-2)² in step 2.
Step-by-step explanation:
, not -4.
Answer: 4ab+10b
2.5ab+14b+1.5b-4
4ab+14b-4b
4ab+10b
you can use the value of sin\
sin(theta) = 12/16
Now solve for theta, and do inverse sine
so theta would be 48.59037789
, or around 50 degrees