Answer:
The answer is 15
Step-by-step explanation:
125/5=25
25-10=15
An= 5[15+10]=125
Answer:
c
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
write the question in an algebraic way:
3x+6 = 6x - 3
Solve:
6x-3 = 3x+6
6x - 3 - 3x = 6
3x = 9
x = 3
Hope this helps.
Good Luck
Answer:
Its letter B
Step-by-step explanation:
Step-by-step explanation:
Use the angle difference formula for cosine.
cos(α − β) = cos α cos β + sin α sin β
cos(180° − θ) = cos 180° cos θ + sin 180° sin θ
cos(180° − θ) = (-1) cos θ + (0) sin θ
cos(180° − θ) = -cos θ
