For the given position vectors (t) compute the unit tangent vector (t) for the given value of t. A) Let (t)=(cos4t, sin4t).
Then (π4)= ( , )
B) Let (t)=(t^2,t^3).
Then (5)= ( , )
C) Let (t)=e4t+e−5t+t.
Then (−4)=

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x