Height of the woman = 5 ft
Rate at which the woman is walking = 7.5 ft/sec
Let us assume the length of the shadow = s
Le us assume the <span>distance of the woman's feet from the base of the streetlight = x
</span>Then
s/5 = (s + x)/12
12s = 5s + 5x
7s = 5x
s = (5/7)x
Now let us differentiate with respect to t
ds/dt = (5/7)(dx/dt)
We already know that dx/dt = 7/2 ft/sec
Then
ds/dt = (5/7) * (7/2)
= (5/2)
= 2.5 ft/sec
From the above deduction, it can be easily concluded that the rate at which the tip of her shadow is moving is 2.5 ft/sec.
The answer is Option B. It would be cheaper for Miguel to drive 200 miles with Option B than Option A.
Answer:
After 13 months the amount paid to both will be $830.
Step-by-step explanation:
60x13+50=830
50x13+180=830
Answer:
hey is this from ncert textbook well.i know it
so question is y²-(-5y²)
it will be. y²+5y² (minus minus will become plus)
it will be then 1y²+5y² (y² will be 1y²)
so total will be 6y²
thanks pls give me brainliest I need it to upgrade the rank
Evaluate the power,subtract the numbers then write all the numerator above the common denominator.
