You can make 5 full scarves in total.
15 x 25 = 375
15 x 50 = 750
375 + 750 = 1,125
She has 1,125 books.
(a + 2b) • (a2 - 2ab - 4b2)
Answer:
,
Explanation:2√2 sin(q) + 2 = 0
2√2 sin(q) = -2
sin(q) =

sin(q) =

Now, we know that:
sin (45) =

From the ASTC rule, we know that the sine function is negative in the third and fourth quadrant.
This means that:
either q = 90 + 45 = 135° which is equivalent to

or q = 270 + 45 = 315° which is equivalent to

Hope this helps :)
Answer:
Time equal to 3.30 seconds when the arrow was going up.
Time equal to 7.94 seconds when the arrow was going down.
Step-by-step explanation:
Trust me