Answer:
k = -2
Step-by-step explanation:
x -1 0 2 5
f(x) 2 0 -4 -10
ƒ(x) = kx
Substitute a pair of values for x and ƒ(x)
-10 = k×5
Divide each side by 5
k = -2
The constant of variation k = -2.
Answer:
8640 inches
Step-by-step explanation:
To Find :
Position vector at time 
and 
.
Solution :
r (t) = 2 (t −7)i + 12t j
Putting t = 5 s and t = 8 s, we get :
r(5) = 2( -2 )i + 60j
r(5) = -4i + 60j
r(8) = 2i + 96j
Now, to find speed differentiating the r(t) w.r.t t :
Hence, this is the required solution.
Answer:
A Yard is 3 feet. 3:1 ratio
Step-by-step explanation:
5 yards equals 15 feet
If the diameter is -3 to 3 then the diameter is 6 so the radius is 3. the equation would be x^2 + y^2 = 9. fyi i found this somewhere else online. i do this a completely different way and am not sure if this is correct.
