Answer:
The first one, the third one, and the fourth one
Step-by-step explanation:
The 1st one is the Pythagorean identity. One of the most essential trig identities you have to remember.
The second one is false because A is equal to 60 and b is equal to 30 and the left side turns into 0.5 while the other side becomes -0.5.
The third one is true since it is a distinction of the identity = (OR you can simply just subtract from either side).
The fourth one is true since it's just a different version of .
For 7 to 9, substitute each answer in to the two equations.
Answer:
Option c, Scheme C
Step-by-step explanation:
scheme A: 45000/6 = 7500 per month
scheme B: 46800/9 = 5200 per month
scheme C: 48000/12 = 4000 per month
3x regular packets. 24 div 8 = 3
1.59 x 3 = 4.77
The Perimeter of Triangle ABC would be 60.
You can solve this by setting up proportions.