1/4 of 80 is 20, so they have 60 left aftef yesterday. then sold 3/5 of 60 which is 36. so the book store has 24 left
Answer:
i think:
A number times four minus nine is one
Not skewed, I can tell dawgggg ooooohhhhh and I’m wasted
Answer:
-9,9
Step-by-step explanation:
To find the roots, we set this equal to zero
(x+9) (x-9) =0
Using the zero product property
x+9 =0 x-9=0
x =-9 x=9
Sin a * cos b + cos a * sin b=sin (a+b)
sin 78 * cos 42 + cos 78* sin 42=sin (78+42)=sin 120=sin(180-120)=
sin 60=√3 / 2
Answer: sin 78 * cos 42 + cos 78* sin 42=<span>√3 / 2</span>
