Answer:
y=8
Step-by-step explanation:
SR=2×SG
AND SG=GR
3y-16=2×4
3y-16=8
3y=8+16
3y=24
y=8
Answer:
C , D , B
Step-by-step explanation:
Trigonometry is given by three formulas :
SOH - CAH - TOA
- Sin x = Opp/Hyp
So Sine must be Option D - Cos x = Adj/Hyp
So Cosine must be Option C - Tan x = Opp/Adj
So tangent must be Option B
Hope this helped and have a good day
A=xy
If there is 10% increase in x then,
New value of x = x + 10%of x =1.1x
similarly for y
New value of y after increase= 1.1 y
New value of A after increase in x and y = 1 .1x × 1.1 y= 1.21xy
now
increase amount in A= New value of A - old value of A
=1.21xy - xy= 0.21xy
percentage increase in A= (0.21xy÷xy )× 100= 21%