Answer:
Y ≈ 59.0°
Step-by-step explanation:
Using the Cosine Rule in Δ XYZ
cosY = 
Here x = 22, y = 20, z = 22, then
cosY = 
= 
= 
, thus
Y = 
( ) ≈ 59.0° ( to the nearest tenth )
Answer:
c
Step-by-step explanation:
because that would be the wrong one
Answer:
so the answer is B,D,E,F
and question a is B i guess
Q must be positive in F.
F. r squared will be positive, because any number times itself is positive, and to get a positive number for the answer, the two numbers you multiply need to be the same sign. If r squared is positive, q must be too.
G. q does not have to be positive. If r is a negative number, then q can be negative. Say q=-2 and r=-3. -2-(-3) changes to -2+3, which equals 1.
H. Again, q can be negative if r is negative (two negative numbers multiplied together equals a positive answer.
J. q can be negative because even a negative number turns positive when squared.
Hope this helped you. :)
If its multiplcation
731700
if its addition
1895
im sorry if im wrong but im just trying to help out and please correct me if ime wrong
