B. the middle letter in the name of the angle is always the vertex
3 because 3 + 2= 5 n 5*6=30
First basically solve.
Next, take the number after the decimal point and see if it's larger than 5 or lesser than 4.
Than, Look at the number before the decimal point and relate back to step 2 (Next) if the number is higher than one. Add by 1 to the number before the decimal.
Example:
4.45
vvvv
4.(4)5 > The 4 is lesser than 4, so the number before the decimal point is keep the same.
vvvvvvv
Answer: 4
x=5
Step-by-step explanation:
Cos x = 15/21
X= cos^-1 (15/21)
X=44
