Answer:
Option (B) is correct.
To prove
As given the epression in the question is given by

Now simplify the above
Terms are written as


Put in the above expression.




Answer:
12 * Answer:
12 x 3 = 36 + 6 = 42,
Step-by-step explanation:
Step-by-step explanation:
Answer:
r = 13
Step-by-step explanation:
r-6=7
Add 6 to each side
r-6+6=7+6
r = 13
x = 12 , y = 18 (12, 18) is the solution, intersection of the two lines.
(180-x)-2(90-x)= 53
Remember that complimentary angles add to 90 and supplementary angles add to 180.
180-x-180+2x=53
x=53
Final answer: The angle is 53 degrees.