You distribute the 3 and get 3x + 6 + 4y + 9x - 5 and from here you would combine like terms. so you should get 12x + 4y + 1
Answer:
x = 18.0
Step-by-step explanation:
You must memorize the definitions of the trig functions and then these types of problems are easy.
In your problem, sin of an angle = opposite side/hypotenuse
So, sin 51 = 14/x
x sin 51 = 14
x = 14/sin 51 = 18.0
Answer:
the value of x is 50 and the measure of c is 70°
Step-by-step explanation:
x+20+2x-30+40=180 (sum of inside the triangle is 180°)
3x+30=180
3x=180-30
x=150/3
x=50