Let a =107° and b=42°;
So cos 107° cos 42° + sin 107° sin 42° = cosa.cos42 + sina.sinb = cos(a-b)
and cos 107° cos 42° + sin 107° sin 42° = cos(107-42) = cos(65°)
Answer:
• let's first get the percentage decrease:

• then multiply the percentage decrease with the mass given:

Answer:
do you go to palcs too?
Step-by-step explanation:
Answer:
C 1099
Step-by-step explanation:
The volume of a cylinder is given by
V = pi * r^2 *h
We know the radius is 5 and the height is 14
Substitute in what we know
V = 3.14 * 5^2 *14
V = 3.14 *25*14
V =1099 in^3
Answer:
Im not a 100% sure but my best guess would be the 3rd equation:
f(x) = (x - 1) (x + 3)
Please let me know if I was wrong, but i hope this helped you!