Answer:
1 and 2/3
Step-by-step explanation:
50, 60 , 70 can be three angles in a triangle
2(6x+11)-4x=14
12x+22-4x=14
8x=-8
x=-1
y=6(-1)+11
y=5
(-1,5)
I=PRT
I= 1950*0.05*4
I=390
Therefore, the simple interest is 390
Answer:
sin18/cos72= sin(18) sec(72)
Step-by-step explanation:
rewrite it as a product: sin(18)/1 * 1/cos(72)
Divide sin(18) by 1 and rewrite 1/cos(72) as sec(72): sin (18) sec (72)