Answer:sin240
Step-by-step explanation:
sin300=-(√3)/2
Sin240=-(√3)/2
So sin300 is equivalent to sin240
It means 1.8 × 10 to the tenth power. the E is a ten are you working with scientific notation
Use photo math app it will help you
The second one 1.7 = 17/10
-0.048 = -6/125
98% = 98/100= 49/50
F(x)=x^2-3x+1/2, if f(4)
Substitute x with 4, to get
f(x)=x^2-3x+1/2
f(4)=4^2-3(4)+1/2
f(4)=16-12+1/2
f(4)=4+1/2
f(4)=4 1/2 or 4.5. Hope it help!
