Answer:
x = 14.7
Step-by-step explanation:
Using the sine rule

Substitute the given values.

Rearrange the equation to get x on it's own.

x = 14.72246211
x = 14.7 (1dp)
Answer:
y = 3x -13
Step-by-step explanation:
y = 3x + 7
-1 = 3(4) + b
-1 = 12 + b
-13 = b
y = 3x -13
The answer to the area of the triangle is 21 because the base is equal to 6 and the height is 7 so you multiply 6 times 7 then divided by 2 because a triangle is 1 half of a square