Answer:
6 seconds
Step-by-step explanation:
Initial distance of Mario from motion detector = 2 ft
Speed of Mario = 1.5 ft/sec
Total distance of Mario from motion detector = 11 ft
Total distance moved by Mario while walking at the rate of 1.5 ft/sec = 11 - 2 = 9 ft
Given that:
Distance = 9 ft
Speed = 1.5 ft/sec
<em>Formula:</em>


So, at <em>6 seconds</em>, Mario will be 11 ft from the motion detector.
Answer:
y=(x+6)^2
Step-by-step explanation:
Bc, the root has to be only -6
there fore x=-6
-14a-5=-12
+5 +5
-14a=-7
Divide -7 by -14a
a=2
Answer:
The value of y for x = 8 is 60 .
Step-by-step explanation:
Given expression as :
For x = 2 , y = 15
Let the equation be written with constant k'
So, y = k x
Or, k = 
∴ k = 
<u>Now, again </u>
For x = 8
equation can be written as
y = k x
Or, y =
× 8
Or, y = 
∴ y = 15 × 4
I.e y = 60
Hence The value of y for x = 8 is 60 . Answer