It is an identity. I hope that helps.
2) B
3)C
I’m not sure If im right but this is what I think it is :)
Answer:
v = - 3
Step-by-step explanation:
Given
v = u + at ← substitute u = 2, a = - 5, t = 1 into the expression
v = 2 + (- 5 × 1) = 2 + (- 5) = 2 - 5 = - 3
Answer: 255 Teenagers.
Solution: If 170 is 2/3 of the teenagers then 85 is 1/3. So, 170 + 85 = 255.
:D
Answer:
f(7)= -7
Step-by-step explanation:
f(x)= -2x+x f(7) which basically means x=7
= -2(7)+7
= -14+7
f(7) = -7
Hope this helps :)
